The present invention relates biometric authentication using an optical biometric arrangement comprising an image sensor comprising a photodetector pixel array configured to capture an image of an object, the image sensor being arranged under a color controllable light source comprising light source units, the method comprising: providing a light pattern comprising portions of different light intensity for illuminating the object; acquiring an image of the object, the image comprising image portions corresponding to the portions of different light intensity of the light pattern illuminating the object, at least one image portion being captured by pixels in the photodetector pixel array arranged directly under a light source being active during image acquisition, and at least one image portion being captured by pixels in the photodetector pixel array arranged under an at least partly in-active illumination area of the color controllable light source during image acquisition, and performing biometric authentication at least partly based on metrics extracted from the image portions.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06K 9/22 - Image acquisition using hand-held instruments
4.
SPOOF DETECTION BASED ON SPECULAR AND DIFFUSE REFLECTIONS
The present invention relates biometric authentication using an optical biometric arrangement comprising an image sensor comprising a photodetector pixel array configured to capture an image of an object, the image sensor being arranged under a controllable light source comprising light source units, the method comprising: providing a light pattern comprising portions of different light intensity for illuminating the object; acquiring an image of the object, the image comprising image portions corresponding to the portions of different light intensity of the light pattern illuminating the object, at least one image portion being captured by pixels in the photodetector pixel array arranged directly under a light source unit being active during image acquisition, and at least one image portion being captured by pixels in the photodetector pixel array arranged under an at least partly in-active illumination area of the controllable light source during image acquisition, performing biometric authentication at least partly based on metrics extracted from the image portions.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06K 9/22 - Image acquisition using hand-held instruments
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
The present disclosure relates to a method of a fingerprint sensing system (110) arranged in a smartcard (100) configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication, and a fingerprint sensing system performing the method. In an aspect, a method of a fingerprint sensing system (110) arranged in a smartcard (100) is provided, the fingerprint sensing system (110) being configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication. The method comprises detecting (S501) a finger of the user contacting a sensing area of the fingerprint sensor (102), initializing (S502) the fingerprint sensor (102) with a predetermined sensor setting, acquiring (S503), for the finger being detected to contact the sensing area of the fingerprint sensor (102), a calibration sub-image which is confined in size to a subarea of the sensing area, determining (S504) whether or not a quality criterion is met for the acquired calibration sub-image, and if so acquiring (S505) one or more further sub-images confined in size to a subarea of the sensing area, and combining (S506) a plurality of the acquired further sub-images into a representation of a fingerprint of the user, wherein the further sub-images are acquired during a time period when the smartcard (100) is not engaged in waiting time extension, WTX, request signalling with a card reader (200) with which the smartcard (100) performs contactless communication.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
6.
TFT-BASED FINGERPRINT SENSING SYSTEM WITH CALIBRATION CIRCUITRY
A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; read-out circuitry coupled to each read-out line in the plurality of read- out lines, the read-out circuitry being configured to acquire a read-out signal via a read-out line connected to a selected pixel element, and calibration circuitry having an input for receiving a calibration input signal and an output for providing a calibration output signal, the calibration output signal being formed through interaction between the calibration input signal and the calibration circuitry.
The present invention relates to a terahertz biometric imaging arrangement (100) configured to be arranged under an at least partially transparent display panel (102) and configured to capture an image of an object located on an opposite side of the transparent display panel, the biometric imaging arrangement comprising: a transmitter element (107) arranged to emit terahertz radiation for illuminating the object; and an image sensor (108) comprising an antenna pixel array (109) arranged to detect terahertz radiation transmitted from the illuminated object, for producing an image.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
A61B 5/0507 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves using microwaves or terahertz waves
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
8.
UNDER DISPLAY PASSIVE TERAHERTZ BIOMETRIC IMAGING DEVICE
The present invention relates to a passive terahertz biometric imaging device (100) configured to be arranged under an at least partially transparent display panel (102) and configured to capture a terahertz image of an object located on an opposite side of the transparent display panel, the terahertz biometric imaging device comprising: an image sensor (108) comprising an antenna pixel array (109) arranged to detect terahertz radiation produced by the object, for capturing a terahertz image of the object.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
A61B 5/0507 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves using microwaves or terahertz waves
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
The present invention relates to a terahertz biometric imaging package comprising: an image sensor comprising an antenna pixel array arranged to detect terahertz radiation transmitted from an object, for capturing an image, each antenna pixel comprises a power detector including an antenna structure for receiving terahertz radiation, wherein the power detector is configured to convert a detected terahertz radiation to a sensing signal at a lower frequency than the frequency of the terahertz radiation, a package top cover arranged to cover the antenna pixel array, wherein the image sensor is configured to capture a terahertz image of an object located on an opposite side of the package top cover, a package bottom part arranged on the other side of the antenna pixel array opposite from the package top cover, wherein the antenna pixel array is encapsulated between the package top cover and the package bottom part.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
A61B 5/0507 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fieldsMeasuring using microwaves or radio waves using microwaves or terahertz waves
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared lightInvestigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
10.
MULTICOLOR ILLUMINATION IN AN OPTICAL FINGERPRINT SENSOR FOR ANTI-SPOOFING
The present invention relates to a method for biometric authentication of a user of an electronic device (101, 201) comprising an optical fingerprint sensor (100, 200) arranged under an at least partially transparent display panel (102, 202) and configured to capture an image of an object (304) located on an opposite side of the transparent display panel (102, 202), the method comprises the steps of: Illuminating (S101) the object (304) with light of at least one distinguishable color (C1); capturing (S103) at least two images of the object with an image sensor (308) comprising a photodetector pixel array while illuminating the object (304) with the light of at least one distinguishable color (C1), wherein the images are captured for different applied forces (F1, F2) by the object (304) on the transparent display panel (102, 202); and performing (S105) biometric authentication at least partly based on at least one relationship between the at least two images, the at least one relationship being related to a difference in pixel intensity from pixels in the photodetector pixel array arranged to detect light of the distinguishable color (C1).
In an aspect, a fingerprint sensing module (120) configured to be integrated in a device (100) for biometric authentication of a user of the device (100) is provided. The fingerprint sensing module (120) comprises a fingerprint sensor (102) and a display (121) configured to display information to the user; the display comprising pixel elements (122) being arranged in the display (121) such that the pixel elements (122) do not obscure a sensing area of the fingerprint sensor (102) in which area the fingerprint sensor (102) is being configured to detect a finger of the user.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
G07F 7/10 - Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card together with a coded signal
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
A biometric imaging device (100) characterized by comprising: an image sensor (102) comprising a plurality of pixels (104) forming a photodetector pixel array; a first aperture layer (106) comprising openings (108) in locations aligned with pixels of the pixel array; a first filter layer comprising a transparent material (110) configured to block light within a predetermined first wavelength range; a transparent spacer layer (112) arranged on the first filter layer, wherein the transparent spacer layer is configured to absorb light within a predetermined second wavelength range; and an array of microlenses (114) arranged on the transparent spacer layer, wherein the microlenses are aligned with the openings in the aperture layer.
The present invention relates to a biometric sensor module (200;300;400;500;600) for detecting a biometric feature of a user, the biometric sensor module comprising: a biometric sensor (202) comprising an array (204) of sensing elements (115) for acquiring sensing signals indicative of a biometric feature of a user, the array of sensing elements arranged facing towards a front side (206) of the biometric sensor. Further, the biometric sensor module comprises a bottom flexible film (208) attached to a back side (210), opposite the front side, of the biometric sensor. The bottom flexible film carrying at least one electrically conductive line (212) electrically connectable circuit. The biometric sensor module further comprises a top film (214) attached to the biometric sensor closer to the front side of the biometric sensor than the bottom flexible film. The flexible film includes a bent portion (216) such that the flexible film is bent towards the top film.
A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; a reference signal source configured to provide a reference signal; and read-out circuitry coupled to each read-out line in the plurality of read-out lines and to the reference signal source, the read-out circuitry being configured to acquire a read-out signal via a read-out line connected to a selected pixel element, when the selected pixel element provides the sensing signal; acquire a reference signal from the reference signal source; form a corrected read-out signal for the selected pixel element based on the read-out signal and the reference signal; and provide corrected read-out signals.
An ultrasonic biometric imaging device (100) comprising: a cover structure (102) having an exposed outer surface, wherein at least a portion of the exposed outer surface (104) forms a sensing surface of the ultrasonic biometric imaging device; and a plurality of ultrasonic transducers (106) attached to an edge portion of the cover structure and configured to emit an ultrasound wave into the cover structure; the cover structure further comprising a reflection reducing layer (202) arranged at a bottom surface (118) of the cover structure, wherein the reflection reducing layer is configured to reduce an amplitude of ultrasonic wave reflections at the bottom surface of the cover structure.
The present disclosure relates to a method of amending a fingerprint template for a user of a smart card, where the user of the smart card is progressively enrolling based on comparison and/or using a separate credential such as a PIN code. The present disclosure also relates to a corresponding smart card and to a computer program product.
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06Q 20/34 - Payment architectures, schemes or protocols characterised by the use of specific devices using cards, e.g. integrated circuit [IC] cards or magnetic cards
G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentialsReview and approval of payers, e.g. check of credit lines or negative lists
17.
ULTRASONIC BIOMETRIC IMAGING SYSTEM AND METHOD FOR CONTROLLING THE ULTRASONIC BIOMETRIC IMAGING SYSTEM
The invention relates to an ultrasonic biometric imaging system (100) comprising: a cover structure (102) having a touch surface (104); a plurality of ultrasonic transducers arranged at a periphery of the touch surface; a plurality of mixed-signal integrated circuits configured to: AD-convert a received analog echo-signal to form a digital echo signal for each active ultrasonic transducer in the subset of ultrasonic transducers; perform local beamforming by introducing a first controllable delay to each digital echo signal to form a plurality of delayed echo signals; and sum the delayed echo signals to form an intermediate signal. The biometric imaging system further comprises a host processor connected to each of the plurality of mixed-signal integrated- circuits and configured to: receive intermediate signals from the of mixed- signal integrated-circuits; perform global beamforming by introducing a second controllable delay to each intermediate signal; and sum the delayed intermediate signals to form a final echo signal.
A biometric device comprising: biometric sensing circuitry; cryptographic circuitry; a device key area in the biometric device for storing a cryptographic device key unique to the biometric device; and a test key area in the biometric device, for storing a cryptographic test key. The biometric device is controllable between: a test state in which the test key area is connected to the cryptographic circuitry to provide the test key to the cryptographic circuitry, and the cryptographic circuitry is prevented from performing cryptographic operations on data provided by the biometric sensing circuitry; and a functional state in which the device key area is connected to the cryptographic circuitry to provide the device key to the cryptographic circuitry, and the cryptographic circuitry is connected to the biometric sensing circuitry to receive and perform cryptographic operations on data from the biometric sensing circuitry using the device key.
G06F 21/72 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
G06F 11/36 - Prevention of errors by analysis, debugging or testing of software
G06F 21/75 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by inhibiting the analysis of circuitry or operation, e.g. to counteract reverse engineering
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
The present disclosure relates to a fingerprint sensing system (101) and a method performed by the fingerprint sensing system (101) of verifying that setting data of a fingerprint sensor (102) of the fingerprint sensing system (101) has not been modified.In aspect, a method performed by a fingerprint sensing system (101) of verifying that setting data of a fingerprint sensor (102) of the fingerprint sensing system (101) has not been modified is provided. The method comprises blocking (S101, S201) access to the fingerprint sensor setting data held in a storage (105, 108) of the fingerprint sensing system (101), acquiring (S102. S203) from the fingerprint sensor a representation of the fingerprint sensor setting data to be utilized upon capturing a fingerprint image, and verifying (S103, S204) from the acquired representation if the fingerprint sensor setting data corresponds to fingerprint sensor setting data that previously was written to the storage (105, 108).
G06F 21/50 - Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules
G06F 21/64 - Protecting data integrity, e.g. using checksums, certificates or signatures
G06F 21/71 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
G06F 9/00 - Arrangements for program control, e.g. control units
A biometric imaging arrangement (100) comprising: a photodetector pixel array (102) including at least a first portion of pixels (106) arranged to receive light transmitted from a spectral filter (104) with a spectral transmission band and at least a second portion of pixels (108) arranged to receive light not 5transmitted from the spectral filter, wherein the biometric imaging arrangement is configured to acquire an image of an object (504) and perform user authentication at least partly based on, in the acquired image, a relationship between the intensity of light received by the first portion of pixels and the intensity of light received by the second portion of pixels.
The present invention relates to a method for producing a biometric image using an optical biometric imaging arrangement (100) including a set of micro lenses (118) adapted to redirect incoming light onto a photodetector pixel array (109), the method comprising: capturing a biometric image including a set of sub-images using an optical biometric imaging device (100); estimating a spatial transformation between the at least one biometric sub-image and corresponding masking calibration sub-images; applying the spatial transformation to retrieved illuminance calibration sub-images adapted for illuminance calibration for captured biometric sub-images to align the illuminance calibration sub-images with the biometric image; and normalizing the biometric sub-images using the aligned calibration sub-images for providing a normalized biometric image based on the normalized biometric sub-images.
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
22.
ULTRASONIC IMAGING DEVICE AND METHOD FOR IMAGE ACQUISITION IN THE ULTRASONIC DEVICE
Method for image acquisition in an ultrasonic biometric imaging device (100), the method comprising: determining (200) a target area (107) of a touch surface (104); by a plurality of ultrasonic transducers (106) arranged at a periphery of the touch surface, emitting (202) a shaped ultrasonic beam towards the target area using transmit beamforming; by the ultrasonic transducers, receiving (204) reflected ultrasonic echo signals defined by received RF-data, the reflected ultrasonic echo signals resulting from interactions with an object in contact with the touch surface at the target area; subtracting (206) background RF-data from the received RF-data to form a clean image; performing (208) receive side beamforming to form a reconstructed image from the clean image; and for a plurality of reconstructed images resulting from a plurality of emitted ultrasonic beams for a given target area, adding (210) the plurality of reconstructed images to form a summed image.
Method for image acquisition in an ultrasonic biometric imaging device (100), the device comprising a plurality of ultrasonic transducers (106) arranged at a periphery of a touch surface (104) along one side of the touch surface, the method comprising: determining (200) a target area (107) of a touch surface (104); identifying (202) a blocking feature (302) preventing ultrasonic wave propagation in the touch surface such that the blocking feature creates a blocked region (304) in the touch surface where image acquisition is not possible; determining (204) that the target area at least partially overlaps the blocked region; dividing (206) the transducers into a first subset and a second subset, the first and second subset being defined in that ultrasonic waves emitted by the respective subset reaches the target area on a first and second side of the blocking feature; and capturing an image of the biometric object using transmit and receive beamforming.
The present disclosure relates to a method performed in an electronic device comprising a fingerprint sensor. For each of a plurality of consecutive sub- templates, the method comprises determining (S1) that a fingerprint is in proximity to the fingerprint sensor as part of an interaction with the fingerprint sensor; extracting (S2) the sub-template from a captured image of the fingerprint; obtaining (S3) an indication about whether the fingerprint was in proximity to the sensor also during a time period prior to the determining; defining (S4) the interaction as a slide interaction if the fingerprint was in proximity or as a touch interaction if the fingerprint was not in proximity; and based on whether the interaction is defined as a slide interaction or a touch interaction, advancing (S5) an enrolment progress. When the enrolment progress is above a predetermined threshold, a template compiled from the sub-templates is enrolled (S6).
Method for determining image reconstruction parameters in an optical biometric imaging device (100) comprising a plurality of microlenses (118) forming a microlens array and an image sensor (108) arranged to receive light having passed through the microlenses (118), the method comprising: by the image sensor, capturing (300) a plurality of sub-images together representing an image of a biometric object in contact with a sensing surface (106) of the biometric imaging device, each sub-image corresponding to a respective microlens; and determining (302) a demagnification factor based on at least a subset of the plurality of sub-images.
The present invention relates to a method of configuring an optical biometric imaging device comprising a photodetector pixel array, the method comprising: acquiring a biometric image of a biometric object using a first binning setting for binning of detection signals from subarrays of the photodetector pixels into a single pixel value;determining a measure indicative of the feature resolution of the biometric image; and determining, when the measure indicates that the feature resolution is below a feature resolution threshold, a second binning setting adapted to provide a higher feature resolution compared to the feature resolution of the biometric image.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H04N 5/347 - Extracting pixel data from an image sensor by controlling scanning circuits, e.g. by modifying the number of pixels having been sampled or to be sampled by combining or binning pixels in SSIS
An optical biometric imaging arrangement (100) configured to be arranged under an at least partially transparent display panel (102), and configured to capture an image of an object located on an opposite side of the display panel, comprising:an image sensor (108) comprising a photodetector pixel array (109);an array of light redirecting elements (118;802,803;206), each light redirecting element is configured to redirect light onto the pixel array, a color filter (111) arranged between the array of light redirecting elements and the image sensor, the color filter comprising at least two color filter arrays of respective color filter elements (115, 117) being optically transmissive, a first color array comprising first color filter elements and a second color array comprising second color filter elements, the color filter arrays are arranged such that each photodetector pixelis at least partly covered by at least a first and a second color filter element.
A biometric imaging device (100) configured to be arranged under an at least partially transparent display panel (102) and configured to capture an image of an object located on an opposite side of the transparent display panel (102). The biometric imaging device (100) comprises an image sensor (108) comprising a photodetector pixel array (109); a transparent substrate (112) covering the photodetector pixel array (109); a first set of microlenses (118) configured to redirect light through the transparent substrate (112) and onto a subarray (120) of pixels in the photodetector pixel array (109). The lenses in the first set of microlenses (118) have a first focal length. A second set of microlenses (119) configured to redirect light through the transparent substrate (112) and onto a subarray (121) of pixels in the photodetector pixel array (109). The lenses in the second set of microlenses (119) have a second focal length which is different from the first focal length.
The invention relates to a method of reconstructing a fingerprint image from a plurality of fingerprint subimages captured by an optical microlens array fingerprint sensor (102), and a sensor system (100) performing the method. In an aspect of the invention, a method of reconstructing a fingerprint image from a plurality of fingerprint subimages captured by an optical microlens array fingerprint sensor (102) arranged under a touch-display (104) of a device (100) is provided. The method comprises capturing (S101) an image of a fingerprint with the fingerprint sensor (102), extracting (S102), from the captured fingerprint image, a fingerprint subimage for each microlens in the array (110), normalizing (S105) the corrected fingerprint subimages with corresponding subimages of a uniformity calibration image with known uniformity properties, rotating (S106) the normalized fingerprint subimages 180 degrees while maintaining their relative position with respect to the captured fingerprint image from which the fingerprint subimages are extracted, and combining (S107) the rotated and normalized fingerprint subimages into a fingerprint image.
There is an optical biometric imaging device (102) configured to capture an image of an object (104) in contact with an outer surface (106) of the biometric imaging device (102), the biometric imaging device (102) comprising: an image sensor (200) comprising a photodetector pixel array (202) and image sensor circuitry configured to capture an image of the object (104) in contact with the outer surface of the imaging device (102); the image sensor (200) comprising a first electrically conductive structure (206) arranged adjacent to an active sensing area (208) of the photodetector pixel array (202); a display panel (210) arranged on top of and at a distance from the image sensor (200), the display panel (210) comprising a second electrically conductive structure (212) on a bottom side (214) of the display panel (210) and arranged to face the first electrically conductive structure (206) of the image sensor (200); and capacitive readout circuitry arranged and configured to detect a capacitance between the first electrically conductive structure (206) and the second electrically conductive structure (212).
The invention relates to an optical biometric imaging device (102) configured to capture an image of an object (104) in contact with an outer surface (106) of the biometric imaging device, the biometric imaging device comprising: an image sensor (200) comprising a photodetector pixel array (202); a transparent substrate (204) arranged to cover the image sensor; a transmission mask (206, 302) arranged to cover the transparent substrate, wherein the transmission mask comprises a plurality of openings (208), the openings forming a coded aperture configured to project a coded image of an object in contact with the outer surface of the imaging device onto the image sensor; and image sensor circuitry (210) configured to capture an image corresponding to the coded image projected onto the image sensor.
The present disclosure relates to a method of authenticating a user by means of an electronic device comprising a user output interface. The present disclosure also relates to a corresponding electronic device and to a computer program product.
The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a biometric sensing system as well as a first,a second and a third control unit. The present disclosure also relates to a corresponding electronic device and to a computer program product.
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H04L 9/06 - Arrangements for secret or secure communicationsNetwork security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
H04L 29/06 - Communication control; Communication processing characterised by a protocol
35.
ACOUSTIC BIOMETRIC IMAGING SYSTEM WITH ACOUSTIC IMPEDANCE MATCHED OPAQUE MASKING LAYER, AND MANUFACTURING METHOD
Method for manufacturing a smartcard (400) comprising a fingerprint sensor, the method comprising: arranging (100) a fingerprint sensor module (204) in an opening (202) of a carrier layer of a smartcard body (200); forming (102) a cavity in the smartcard in an area corresponding to a sensing area of the fingerprint sensor module; forming (104) a plurality of surface structures in the cavity of the smartcard; depositing (106) a liquid hydrophobic material (234) in the cavity to at least partially cover the surface structures and a smartcard manufactured according to the described method.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
The present disclosure generally relates to a method of authenticating a user, using an electronic device comprising a fingerprint sensor, and more specifically to improvements in relation to how to acquiring an authentication fingerprint image for use in authenticating the user. The present disclosure also relates to a corresponding electronic device and to a computer program product.
A method, system and device for determining a finger motion on a fingerprint sensor comprising a sensing area. The method comprises: receiving (S102) a finger on the sensing area (40) of the fingerprint sensor (3); when an amount of sensor area coverage caused by the finger touching the sensing area is below a coverage threshold, acquiring (S104) images of a first type using a first image acquisition setting with the fingerprint sensor, when the amount of sensor area coverage is equal to or exceeds the coverage threshold, acquiring (S106) images of a second type using a second image acquisition setting with the fingerprint sensor, determine a present motion of the finger on the fingerprint sensor based on the first type of images (S108) or the second type of images (S109) depending on a present amount of sensor area coverage.
A method for providing user input on an electronic device comprising a fingerprint sensor (3) comprising an array (404) of sensing elements (402). Acquiring (S102) partial fingerprint images of a finger touching a finger touch surface (401 ) of the fingerprint sensor from at least two sub-groups (404a,b,c,d) of sensing element. Determining (S104) a respective force value indicative of a force applied on the finger touch surface at each of the sub- groups of sensing elements when the partial fingerprints were acquired, based on the partial fingerprint images acquired from the respective sub- group of sensing elements. Determining (S106) a force value difference between a pair of the determined force values. Determining (S108) a user input based on the determined force value difference, and based on the relative location between the sub-groups of sensing elements in the pair associated with the force value difference.
The present invention relates to providing a filtered fingerprint pattern signal indicative of a fingerprint pattern with a fingerprint sensing device comprising an array of sensing elements for sensing the fingerprint pattern.Each sensing element is configured to provide a sensing signal indicative of a local fingerprint pattern feature. The method comprises: receiving analog sensing signals from each of a set of sensing elements comprising at least four sensing elements, filtering the set of sensing signals to provide a set of filtered output signals each comprising a linear combination of the set of sensing signals in which each sensing signal has a respective coefficient. The coefficients in each linear combination sum up to zero, and wherein the linear combinations are different from each other. The set of filtered output signals are converted to a filtered digital sensing signal indicative of the user's fingerprint pattern.
A biometric imaging device (100) configured to capture an image of an object (102) in contact with an outer surface (104) of the imaging device, the biometric imaging device comprising: an at least partially transparent display panel (106) comprising a repeating transmission pattern defined by an array of display unit cells (108), each display unit cell having the same transmission pattern; an image sensor (110) comprising a photodetector pixel array (111) arranged underneath the display panel; and a collimator layer (112) arranged between the display panel and the image sensor, the collimator layer comprising a plurality of first collimating structures (114) having a first collimator opening size and a plurality of second collimating structures (116) having a second collimator opening size, the second collimator opening size being different from the first collimator opening size, wherein the respective collimator opening size and relative location of the first and second collimating structure in relation to the display unit cell is based on the transmission pattern of the display unit cell.
The present disclosure relates to an electronic device (100) comprising at least a first (102) and a second (104) biometric sensor arrangement, wherein the second biometric sensor arrangement being different from the first biometric sensor arrangement. A specifically adapted enrollment instruction, typically relating to only the first biometric sensor arrangement, may in line with the present disclosure be used in an indirect manner for impacting how the user interact with the electronic device, such that also biometric data from the second biometric sensor arrangement may be acquired. The present disclosure also relates to a method for enrolling a user of such an electronic device and to a corresponding computer program product.
The invention relates to methods and devices for updating biometric template protection keys. In an aspect of the invention, a method performed by a network node (300) is provided of updating at least one stored feature transformation key with which a set of biometric data of a user (200) initially has been transformed at a first client device (100) at which the biometric data of the user was captured and enrolled with the network node (300), which set of transformed biometric data of the user is stored at a biometric data verification node (400) without the biometric data verification node (400) having access to the feature transformation key. The method comprises determining (S302) that said at least one stored transformation key is to be updated, generating (S303) random data, computing (S304) at least one new feature transformation key based on said random data, replacing (S305) the at least one stored feature transformation key with the computed at least one new feature transformation key, and transmitting (S306) the generated random data to the biometric data verification node (400), wherein the biometric data verification node (400) uses the generated random data to update the at least one set of transformed biometric data which initially was transformed using the replaced at least one feature transformation key.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
The present disclosure relates to a method of authenticating a user by means of an electronic device comprising a user output interface. The present disclosure also relates to a corresponding electronic device and to a computer program product.
There is provided mechanisms for requesting, by a client device, registration of identified data at a sensor reader. The client device and the sensor reader have a security trusted relationship with a trusted server. A method comprises sending a request command, from the client device and to the sensor reader, the request command pertaining to a registration operation to be performed on identified data at the sensor reader. The method comprises assigning, by the sensor reader, a security policy to the identified data. The method comprises creating, by the sensor reader and based on the request command and the security policy, a first security protected object and a second security protected object of the identified data. The method comprises sending, by the sensor reader, the second security protected object to the client device. The method comprises sending, by the sensor reader, the first security protected object towards the trusted server. The method comprises verifying, by the trusted server and upon reception of the first security protected object, that the sensor reader that created the first security protected object has a security trusted relationship with the trusted server.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
46.
IMPROVED FINGERPRINT MATCHING IN IN-DISPLAY SOLUTIONS
Disclosed is a method for enrolling a fingerprint associated with a user and detected on a display in order to enroll the user.The display comprises ultrasonic sensors configured to detect fingerprints on the surface of the display. One or more positions on the display are defined, each position associated with a respective set of coordinates.The respective set of coordinates defines where on the display the one or more positions are located. The method comprises prompting the user to touch a first position on the display associated with a first set of coordinates one or more times, detecting at least one touch occasion in the first position of the display,resulting in a respective fingerprint,extracting a number of feature points from each respective fingerprint,forming one or more sub-templates comprising the extracted feature points, associating the sub-templates with the first position and storing the sub-templates.The number of feature points associated with the one or more stored sub-templates is associated with the enrolled user. Also disclosed is a method for verifying an enrolled fingerprint and an arrangement.
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
The present disclosure relates to a method for determining whether an obtained verify fingerprint image (31) is genuine or impostor compared with an enrolled fingerprint. The method comprises obtaining the verify fingerprint image of a finger by means of a fingerprint sensor; extracting features from the verify fingerprint image; retrieving a stored template of features of at least one enrol image (32) of the enrolled fingerprint; matching the extracted features to a geometrical transform of the features of the template, wherein positive matches between the extracted features and the template features are determined to be inlying matches (34); determining an area of overlap (33) between the verify fingerprint image and the enrol image; and classifying the verify fingerprint image as genuine or impostor based on the number of the inlying matches in relation to the determined area of overlap.
There is provided a biometric imaging device (100) configured to be arranged under an at least partially transparent display panel (102) and configured to capture an image of an object in contact with an outer surface (106) of the display panel. The biometric imaging device comprises: an image sensor (108) comprising a photodetector pixel array (109); a transparent substrate (112) arranged to cover the image sensor; an opaque layer (114) covering an upper surface of the transparent substrate, wherein the opaque layer further comprises a plurality of separate openings (116); and a plurality of microlenses (118), each microlens being arranged in alignment with a respective opening of the opaque layer; wherein each microlens is configured to redirect light through the transparent substrate and onto a subarray (120) of pixels in the photodetector pixel array.
There is provided a display arrangement comprising an ultrasonic biometric sensing device. The display arrangement comprises: a cover plate (103) having a sensing surface configured to be touched by a finger; a display panel (102) comprising a plurality of sub-layers; a plurality of ultrasonic transducers (106) arranged along the periphery of the display arrangement and outside of an active display area of the display arrangement, each ultrasonic transducer comprising an top and bottom electrode;and ultrasonic transducer control circuitry (114) to control the ultrasonic transducers to determine properties of an object in contact with the sensing surface. One of the sub-layers in the display panel comprises a protruding portion (206) extending outside of an area of any other sub-layer located between the sub- layer comprising the protruding portion and the cover plate, and the plurality of ultrasonic transducers are arranged on the protruding portion between the protruding portion and the cover plate.
The present invention relates to a fingerprint sensing arrangement (2, 2') and to a method for providing a fingerprint pattern signal. For providing the fingerprint pattern signal a sensing signals from the sensing circuits (308, 312) of at least two sensing elements (302, 304) are combined according to an arithmetic operation to form a combined sensing signal. The combined sensing signal is compared to a threshold value. Based on the comparison a binary value is output. The fingerprint pattern signal comprises at least one set of binary values.
The present invention relates to a method for controlling a device controller (502) of an electronic device (100;100';500) comprising a fingerprint sensor (102) to transition from an at least partly active mode to an at least partly in active mode. The fingerprint sensor itself is used for determining a presence of a finger on the fingerprint sensor, wherein a device controller is maintained in an at least partly active mode if a finger is detected on the fingerprint sensor. The present invention also relates to an electronic device comprising a fingerprint sensor and a device controller.
There is provide a biometric imaging system (100) comprising: a display panel (102) comprising: a plurality of display pixels (104) controllable to form an image in the display and a plurality of individually controllable non-visible light emitting elements (112) configured to the emit non-visible light, the non- visible light emitting elements being configured to form a controllable spatial irradiation pattern within an irradiation zone defined by the plurality of non- visible light emitting elements; and a control unit (116). The control unit is configured to identify (300) a biometric object (204, 206) facing the display panel; determine (302) a relative location of the biometric object in the irradiation zone; control (304) the plurality of non-visible light emitting elements to form a spatial radiation pattern based on the location of the biometric object in relation to the display panel.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H04N 5/235 - Circuitry for compensating for variation in the brightness of the object
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
54.
BIOMETRIC IMAGING SYSTEM AND METHOD OF DETERMINING PROPERTIES OF A BIOMETRIC OBJECT USING THE BIOMETRIC IMAGING SYSTEM
There is provided a biometric imaging system comprising a display panel. The display panel in turn comprises: a plurality of display pixels configured to emit visible light and controllable to form an image in the display; and a plurality of non-visible light emitting elements configured to emit linearly polarized non- visible light; a camera configured to receive polarized non-visible light having an orientation which is rotated with respect to the emitted linearly polarized light; and control circuitry configured to: activate the plurality of non-visible light emitting elements to emit linearly polarized light towards a biometric object; and control the camera to capture an image based on light reflected by the biometric object having a polarization which is rotated with respect to the emitted linearly polarized light.
In a first aspect of the invention, a method performed by a client device (100) of enrolling biometric data of a user (200) of the client device with a network node (300) over a secure communication channel is provided. The method comprises capturing (S101) the biometric data of the user (200), transforming (SI 02) the biometric data into a first set of transformed biometric data using a first feature transformation key shared with any other client device (500) at which the user (200) is to be authenticated, generating (SI 03) a second feature transformation key, and transforming (SI 04) the biometric data into a second set of transformed biometric data using the second feature transformation key. The method further comprises encrypting (SI 05) the first and second set of transformed biometric data with an encryption key shared with a biometric data verification node (400) at which the user (200) is to be authenticated, encrypting (SI 06) the second feature transformation key with an encryption key shared with the network node (300) at which the first and second sets of transformed biometric data are to be enrolled, and submitting (S107), to the network node (300), an enrolment request comprising the encrypted first and second sets of transformed biometric data, the encrypted second feature transformation key, and user profile data.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
56.
FINGERPRINT SENSOR PACKAGE WITH DESIRED COMPONENT OUTLINE AND METHOD FOR MANUFACTURING THEREOF
A method of manufacturing a fingerprint sensor component (5) having a component outline for integration into an electronic device (1), the method comprising the steps of:providing a fingerprint sensor package (17) having a sensing surface (19),a connection surface (21) opposite the sensing surface (19), and sides (23) connecting the sensing surface and the connection surface,the connection surface (21) having connectors (25) for allowing electrical connection of the fingerprint sensor component (5) to the electronic device (1); arranging the fingerprint sensor package (17) on a temporary carrier (49) with the connection surface (21) facing the temporary carrier (49); and adding material (27; 45, 47) at least around the sides (23) of the fingerprint sensor package (17), while leaving the connection surface (21) of the fingerprint sensor package (17) uncovered.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
A method of manufacturing a fingerprint sensor component (3) for integration in an electronic device(1), comprising the steps of:providing a fingerprint sensor IC(9)having a top face (11)with sensing circuitry (17), a bottom face (13) with connectors (21) for electrical connection to the electronic device (1), sides (15) extending between the top face and the bottom face,and a plurality of vias (29) passing through the fingerprint sensor IC(9)and connecting the sensing circuitry (17) on the top face to the connectors (21) on the bottom face;masking the top face and the bottom face of the fingerprint sensor IC;applying a dielectric material (23) to cover the sides (15) of the fingerprint sensor IC (9), while the top face (11)and the bottom face (13) of the fingerprint sensor IC are masked, such that the bottom face (13) and the top face (11) are left uncovered by the dielectric material (23); and unmasking the top face and the bottom face of the fingerprint sensor IC.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 23/28 - Encapsulation, e.g. encapsulating layers, coatings
H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
A method for handling biometric templates is disclosed for an authenticating device applying biometric authentication. The method comprises acquiring a set of biometric data associated with a prospect user,and acquiring a decryption key (associated with an encrypted biometric template associated with an enrolled user of the authenticating device) from a key carrying device external to the authenticating device responsive to the key carrying device being in a vicinity of the authenticating device. The method also comprises retrieving, from a storage medium, at least a part of the encrypted biometric template associated with the enrolled user, decrypting the retrieved part of the biometric template using the acquired decryption key and performing an attempt to authenticate the prospect user as the enrolled user based on a comparison between the acquired set of biometric data and the decrypted part of the biometric template. Corresponding arrangement, authenticating device and computer program product are also disclosed.
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06F 21/34 - User authentication involving the use of external additional devices, e.g. dongles or smart cards
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
59.
CONTROLLABLE ULTRASONIC FINGERPRINT SENSING SYSTEM AND METHOD FOR CONTROLLING THE SYSTEM
There is provided a method for controlling a plurality of ultrasonic transducers (106) in a fingerprint sensing system. The fingerprint sensing system comprises a cover plate (102) having a sensing surface (104) configured to be touched by a finger (105), and a plurality of ultrasonic transducers located at the periphery of the cover plate, wherein the plurality of ultrasonic transducers are configured to transmit an acoustic signal propagating in the cover plate, receive an ultrasonic signal having interacted with an object in contact with the sensing surface, and to determine properties of the object based on the received ultrasonic signal. The method comprises: in response to a first input (200), controlling (202) the plurality of transducers such that at least a portion of the sensing surface has a first feature detection resolution; and in response to a second input (204), controlling (206) the plurality of transducers such that at least a portion of the sensing surface has a second feature detection resolution, different from the first feature detection resolution.
The present disclosure relates to a method of controlling an electronic device (100), the electronic device (100) comprising a fingerprint sensor (102). The present disclosure also relates to a corresponding electronic device (100) and to a computer program product. In line with the present disclosure, the user is first authenticated based on a fingerprint image acquired at a first position (206) associated with a selected portion of the fingerprint sensor (102) defining a sensing area (202). Then, only if the user is authenticated, the user is allowed to provide information defining a second position (210) for the sensing area (202). The second position (210) is then typically used for subsequent user operation involving the fingerprint sensor (102).
The present disclosure relates to a method of controlling an electronic device, the electronic device comprising a fingerprint sensor. The present disclosure also relates to a corresponding electronic device and to a computer program product.
The present disclosure relates to a method performed in a fingerprint analysis system for facilitating differentiating between a live finger and a spoof finger. The method comprises acquiring a plurality of time-sequences of images, each of the time-sequences showing a respective finger (5) as it engages a detection surface (21) of a fingerprint sensor (3). Each of the time- sequences comprises at least a first image and a last image showing a fingerprint topography of the finger, wherein the respective fingers of some of the time-sequences are known to be live fingers and the respective fingers of some other of the time-sequences are known to be spoof fingers. The method also comprises training a machine learning algorithm on the plurality of time-sequences to produce a model of the machine learning algorithm for differentiating between a live finger and a spoof finger.
Embodiments herein provide a dual optical and capacitance sensor. During a first time period, the dual sensor uses optical sensing to capture a fingerprint (e.g., to identify or verify the fingerprint). During a second time period, the dual sensor uses one or more capacitive sensor electrodes to perform capacitive sensing. The capacitive sensing may be absolute capacitive sensing or transcapacitive sensing.
The present invention relates a method for fingerprint image enhancement comprising applying (S704) a first low pass filter (302;402) and a first weight (306;402') to raw fingerprint image data (300) to produce a first filtered fingerprint image data set (310). Applying (S706) a second low pass filter (304;403) and a second weight (308;403') to the raw fingerprint image data to produce a second filtered fingerprint image data set (312). Filter coefficients of the second filter are different from filter coefficients of the first filter. The first filtered fingerprint image data set and the second filtered fingerprint image data set are combined (S708) to produce a final enhanced fingerprint image. The invention also relates to a fingerprint sensing system and to an electronic device (100) comprising a fingerprint sensing system.
The present disclosure generally relates to a method for authenticating a user by means of an electronic device, where the electronic device comprises a first and a second control unit adapted to process a biometric representation from a biometric sensor. Preferably, the second control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.
A method of manufacturing ultrasonic transducer devices, comprising fabricating an ultrasonic transducer panel;and dividing the ultrasonic transducer panel into ultrasonic transducer devices. Fabricating the ultrasonic transducer panel includes: providing a first carrier; arranging a plurality of piezoelectric elements spaced apart on the first carrier; applying adielectric material on the plurality of piezoelectric elements to embed each piezoelectric element in the plurality of piezoelectric elements in the dielectric material, thereby forming a piezoelectric element device layer on the first carrier; thinning the piezoelectric element device layer, resulting in an exposed first side of each piezoelectric element in the plurality of piezoelectric elements; forming a first electrode layer on the piezoelectric element device layer, the first electrode layer including a first transducer electrode on the exposed first side of each piezoelectric element in the piezoelectric element device layer; and separating the piezoelectric element device layer from the first carrier.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
G06F 3/043 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
H01L 41/25 - Assembling devices that include piezo-electric or electrostrictive parts
An ultrasonic transducer device for use in an acoustic biometric imaging system, the ultrasonic transducer device comprising: a first piezoelectric element having a first face, a second face opposite the first face, and side edges extending between the first face and the second face; a first transducer electrode on the first face of the first piezoelectric element; a second transducer electrode on the second face of the first piezoelectric element; and a spacer structure leaving at least a portion of the first transducer electrode of the first piezoelectric element uncovered.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
G06F 3/043 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
H01L 41/25 - Assembling devices that include piezo-electric or electrostrictive parts
The invention relates to methods and devices of enabling authentication of a user (200) of a client device (100, 500) over a secure communication channel based on biometric data. In an aspect of the invention, a network node (300) configured to enable authentication of a user (200) of a client device (100, 500) based on biometric data captured by the client device (100, 500) is provided, which trusted network node (300) comprises a processing unit (301) being configured to receive, from the client device (500), a request to authenticate a user of the client device (500), the authentication request comprising a first set of transformed biometric data transformed with a first secret feature transform key shared with the client device, fetch, from the secure end-user repository (400), a second set of enrolled transformed biometric data associated with the first set of transformed biometric data received from the client device (500) and a second secret feature transform key with which the second set of biometric data was transformed at enrolment of the transformed biometric data at the network node (300), and submit the second set of transformed biometric data and the second secret feature transform key over a secure communication channel to the client device (500).
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
69.
METHOD AND FINGERPRINT SENSING SYSTEM FOR DETERMINING THAT A FINGER COVERS A SENSOR AREA OF A FINGERPRINT SENSOR
The present disclosure relates to a method of determining that a finger covers a sensor area of a fingerprint sensor. The method comprises, on a surface of the fingerprint sensor, receiving a finger having a fingerprint topography. The method also comprises, by means of the fingerprint sensor, acquiring an image of the fingerprint of the received finger. The method also comprises dividing an image area (41)of the acquired image, corresponding to the sensor area of the fingerprint sensor, into a plurality of image regions (r), said regions partly overlapping each other and covering the whole image area. The method also comprises, based on image analysis of each of the plurality of image regions, determining that the finger covers the whole sensor area.
The present disclosure relates to a method of determining that a finger is in stable contact with a surface covering a sensor area of a fingerprint sensor. The method comprises, by means of the fingerprint sensor, acquiring a time- sequence of images of the fingerprint of the received finger. The method also comprises, for each image of the time-sequence, dividing an image area (41) of the image, corresponding to the sensor area of the fingerprint sensor, into a plurality of image regions (r), said regions partly overlapping each other and covering the whole image area. The method also comprises, based on image analysis of each of the plurality of image regions of each image of the time-sequence, determining that the finger is in stable contact with the surface covering the sensor area.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06K 9/03 - Detection or correction of errors, e.g. by rescanning the pattern
71.
FINGERPRINT SENSOR DEVICE AND METHOD FOR MANUFACTURING A SEMICONDUCTOR SENSOR DEVICE COMPRISING A COVER LAYER HAVING AN ANISOTROPIC DIELECTRIC CONSTANT
A method for manufacturing a fingerprint sensor device (100). The method comprises providing (200) a fingerprint sensor chip (112), arranging (202) the fingerprint sensor chip on a carrier (104), depositing (204) a cover layer (106) on the fingerprint sensor chip, the cover layer comprising a polarizable material; moving (206) a top electrode (108) into contact with a top surface of the cover layer; and applying (208) a voltage between the top electrode and a bottom electrode (110, 602) located below the cover layer and comprised in a material stack between the bottom of the carrier and the cover layer, creating an electric field in the cover layer, thereby poling the cover layer such that a dielectric constant of the cover layer in a direction perpendicular to the sensing array is higher than a dielectric constant in a direction parallel to the sensing array, thereby forming a cover layer having an anisotropic dielectric constant.
In an aspect of the invention, a network node (300) configured to enable authentication of a user (200) of a client device (100, 500) based on biometric data captured by the client device (100, 500) is provided, which network node (300) receives a request to authenticate a user of a client device (500), the authentication request comprising a user identifier, fetch at least one set of enrolled transformed biometric data corresponding to the user identifierand a secret feature transform key with which the biometric data was transformed at enrolment of the transformed biometric data at the network node (300), and submit the transformed biometric data and the secret feature transform key over a secure communication channel to the client device (500).
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
73.
METHOD OF A FINGERPRINT SENSING SYSTEM OF ENABLING AUTHENTICATION OF A USER BASED ON FINGERPRINT DATA
The invention relates to a fingerprint sensing system(101)and a method of the fingerprint sensing system(101)of enabling authentication ofa user based on fingerprint data captured by a fingerprint sensor (102) of the fingerprint sensing system (101). In an aspect of the invention, a method of a fingerprint sensing system (101) of enabling authentication of a user based on fingerprint data captured by a fingerprint sensor (102) of the fingerprint sensing system (101) is provided. The method comprises capturing (S201) at least one image of a fingerprint of a user's finger contacting the fingerprint sensor (102), acquiring (S202) a stored image comprising impairment data (120) caused by impairments that the fingerprint sensor (102) is subjected to, extracting (S203) fingerprint feature data from the captured at least one image, extracting (S204) impairment feature data from the acquired image,and comparing (S205) at least a subset of the extracted fingerprint feature data to at least a subset of the extracted impairment feature data (120) of the acquired image, and if there is a match the user is not authenticated.
The present invention relates to a combined fingerprint sensing and body area network communication system (400) for communication with an electronic unit (302, 312) using the body of a user as communication medium, comprising an array of sensing structures(202); and read-out circuitry (902) connected to each of at least a portion of the sensing structures for providing sensing signals indicative of a capacitive coupling between each sensing structure and a finger, anda body area network communication circuitry. The system is controllable between:a fingerprint sensing state,and a body area network communication state in which asignal is provided toat least a portion of the sensing structures by a first of the electronic unit and the body area network communication circuitry, to be sentvia the user's body and the sensing structures to the other one of the electronic unit and the body area network communication circuitry.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
75.
FINGERPRINT SENSING AND BODY AREA NETWORK COMMUNICATION SYSTEM
The present invention relates to a combined fingerprint sensing and body area network communication system (102, 400) for communication with an electronic unit (302, 312) using the body (301) of a user as communication medium. The system is operable in two states, a fingerprint sensing state, in which a readout circuitry (902) is controlled to provide sensing signals indicative of a fingerprint pattern, and a body area network communication state in which a communication signal is provided to at least a portion of a sensing arrangement(402) by one of the electronic unit and a body area network communication circuitry (404). The communication signal is transmitted using an alternating reference potential of the sensing arrangement. The communication signal being sent from one of the electronic device(100) and the body area network communication circuitry via the user's body and via the sensing arrangement portion to the other one of the electronic unit and the body area network communication circuitry.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
H04B 13/00 - Transmission systems characterised by the medium used for transmission, not provided for in groups
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
76.
METHOD FOR MANUFACTURING A FINGERPRINT SENSOR MODULE
There is provided a method for manufacturing a fingerprint sensor module (310, 400). The method comprises providing (100) a fingerprint sensor wafer (200) comprising a plurality of fingerprint sensor chips (201), wherein each sensor chip is configured to acquire an image of a finger placed on a sensing surface of the fingerprint sensor module; forming (102) at least one via connection opening (302) through the fingerprint sensor chip; performing (104) chip singulation, dividing the wafer into separate fingerprint sensor chips such that edges (304) of each fingerprint sensor chip are exposed after singulation; depositing (106) an electrically conductive material (306) in the at least one via connection opening, thereby forming an electrically conductive via connection reaching through the fingerprint sensor chip; and in one and the same process step, depositing (108) a protective material (308) on the electrically conductive material, on the backside of the fingerprint sensor chip, and on the chip edges.
There is provided a fingerprint sensor module (100, 400) comprising a fingerprint sensor device (102). The fingerprint sensor device (102) comprises a sensing array (104) consisting of a plurality of sensing elements, the sensor device being configured to acquire an image of a finger placed on a sensing surface of the fingerprint sensor module. The fingerprint sensor module (100, 400) further comprises a substrate (108) comprising an opening (110, 401), wherein the fingerprint sensor device is arranged in the opening of the substrate and wherein the substrate comprises an antenna (112, 402) embedded in the substrate, the antenna being electrically connected to the fingerprint sensor device.
The present invention relates to a method of enrolling a fingerprint of a user's finger (202), by means of a fingerprint detection arrangement (102, 402). In particular, the fingerprint detection arrangement (102, 402) comprises a fingerprint sensor (101) and an optical sensor (130) comprising a light emitting source (132) and a light receiving device (134).
A biometric object matching method is disclosed. The method comprises capturing (210) a plurality of images of a single biometric object during a single activation of a biometric sensor and ranking (220) the images based on a ranking metric value of each of the images to determine a highest ranked image and at least one non-highest ranked image. The method also comprises comparing (230), in a first matching attempt for the biometric object, the highest ranked image to templates of a plurality of pre-stored biometric object templates, wherein a matching metric is determined for each compared template, and generating (270) a match indicating signal when it is determined (240) that at least one of the matching metrics exceeds amatching threshold value. Whenit is determined that none of the matching metrics exceed the matching threshold value,the method comprisescomparing (260), in a further matching attempt, one of the non- highest ranked images to templates of the plurality of templates based on the matching metrics. Corresponding arrangement, server node, systemand computer program product are also disclosed.
There is provided a fingerprint sensor module (102) comprising a fingerprint sensor device (200) comprising a sensing array (204) and at least one connection pad (206) for electrically connecting the fingerprint sensor device to external circuitry, the sensing array and connection pad being located on a first side of the fingerprint sensing device; at least one electrically conductive via connection (302) arranged adjacent to the fingerprint sensor device and in electrical contact with the connection pad via at least one conductive trace (304) located in the same plane as the connection pad; a mold layer (306) arranged to cover a backside (308) of the fingerprint sensor device and to fill a volume between the fingerprint sensor device and the via connection, wherein an end portion (310) of the via connection is exposed for connecting the fingerprint sensor module to external circuitry. There is also provided a method for manufacturing such a fingerprint sensor module.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 23/48 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements
H01L 23/522 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
G06K 19/067 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
H01L 23/28 - Encapsulation, e.g. encapsulating layers, coatings
81.
FINGERPRINT AUTHENTICATION METHOD AND SYSTEM FOR REJECTING SPOOF ATTEMPTS
A method of authenticating a user by means of a fingerprint authentication system comprising a finger sensing arrangement (3), comprising the following steps for each authentication attempt in a sequence of authentication attempts: receiving a touch by a candidate finger probe on the finger sensing arrangement; acquiring(100)a candidate fingerprint image of the candidate finger probe;determining(102) an authentication representation based on the candidate fingerprint image; retrieving(104)a stored enrollment representation of anenrolled fingerprint of theuser; determining (108)a match score based on a comparison between the authentication representation and theenrolment representation;determining a liveness score for the authentication attempt; determining(110) a qualification metric for the authentication attempt based on arelation between theliveness score for the authentication attemptand a liveness score for at least one previous authentication attempt; and determining an authentication result for the authentication attempt based on the match score, and the qualification metric.
The present disclosure generally relates to a method for authenticating a user using an electronic device, where the electronic device comprises a fingerprint sensor as well as a first and a second control unit. Preferably, the first control unit comprises a secure element and/or a secure block adapted to provide a secure processing environment. The present disclosure also relates to a corresponding electronic device and to a computer program product.
A method of authenticating a user by means of a fingerprint authentication system, comprising the steps of receiving a touch by a candidate finger probe; acquiring (100) a first candidate fingerprint image of the candidate finger probe; determining (102) a first authentication representation based on the first candidate fingerprint image; retrieving (104) a stored enrollment representation of an enrolled fingerprint of the user; comparing the first authentication representation with the enrolment representation; determining (108) a liveness score for the candidate finger probe; and when the first authentication representation matches with the stored enrolment representation, and the liveness score indicates a likely spoof: providing a signal indicating a failed authentication; determining (110) a first anti-spoofing representation based on the first candidate fingerprint image; and storing the first anti-spoofing representation.
The invention relates to a method of a fingerprint sensing system (101) arranged in an electronic device (100) of capturing fingerprint data of a user contacting a fingerprint sensor (102) of the fingerprint sensing system, and a fingerprint sensing system performing the method.
The present invention generally relates to a fingerprint sensor package (300;400;600) comprising: a substrate (302) having thereon a plurality of electrical connection pads (306,306'); a fingerprint sensor (308) arranged on the substrate and electrically connected to at least one of the electrical connection pads; a bond wire loop (310) formed from a bond wire (311) having two ends (311a, 311b) of which at least one end is mechanically and electrically attached to a first one of the electrical connection pads, and a force sensing member (324) in electrical contact with the first electrical connection pad via an upper portion (316, 316', 317) of the bond wire loop, and in electrical contact with a second (315, 315') one of the electrical connection pads different from the first electrical connection pad, wherein an electrical property of the force sensing member is alterable in response to a deformation of the force sensing member.
A method of controlling operation of a field-powered biometric device (1 ) comprising biometric acquisition circuitry (16), processing circuitry (18) controllable to transition between a first functional state having a first power consumption and a second functional state having a second power consumption lower than the first power consumption, and power management circuitry (20). The method comprises the steps of monitoring (100), by the power management circuitry (20), a property indicative of a supply voltage (Vsupply) to the processing circuitry (18); controlling (104), when the monitored property indicates that the supply voltage has fallen to a first threshold voltage (VTH1 ), the processing circuitry (18) to transition from the first functional state to the second functional state; and controlling (1 10), when the monitored property indicates that the supply voltage (Vsupply) has increased to a second threshold voltage (VTH2) higher than the first threshold voltage (VTH1 ), the processing circuitry (18) to transition from the second functional state to the first functional state.
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
The invention relates to a method of a fingerprint sensing system of extracting fingerprint feature data from an image captured by a fingerprint sensor of the fingerprint sensing system, and a fingerprint sensing system performing the method.
A fingerprint image is acquired (106), and it is determined (1 10) if the finger (15) is still touching the sensing surface. When the finger (15) no longer touches the sensing surface, the user is authenticated (1 12) based on one or several fingerprint image(s) acquired so far. When it is determined that the finger (15) still touches the sensing surface, a quality measure is determined (1 14) for the fingerprint image. When the quality measure indicates that a quality of the fingerprint image fulfills a predefined quality criterion, the user is authenticated based on one or several fingerprint images acquired so far. When the quality measure indicates that the quality of the fingerprint image fails to fulfill the predefined quality criterion, a subsequent fingerprint image is acquired. When the finger (15) still touches the sensing surface, and the quality measure indicates that the quality of the subsequent fingerprint image fulfills the predefined quality criterion, the user is authenticated based on one or several fingerprint images acquired so far including the subsequent fingerprint image.
The present invention relates toa method for transitioning a device controller comprised with an electronic device (1) from an at least partly inactive mode to an at least partly active mode, wherein themethod comprises:determining (S1003) the area portion of a finger detecting structure (4a, 4b, 4c, 4d) being touched by an object; determining a force applied on thefingerprint sensing device(2). When thearea portion of the finger detecting structure being touched by theobject exceeds a predetermined threshold area portion(911), and theforce exceeds a predetermined threshold force value(910), transitioning, using the pre-processing module(14), thedevice controller from theat least partly inactive mode to theat least partly active mode.The invention also relates to such an electronic device.
The present invention generally relates to a method for authenticating a user of an electronic device comprising a fingerprint sensor. The method comprises acquiring a sequence of verification images. Estimating, based on the images a first and a second verification force value indicative of a force applied by the object on the fingerprint sensor when the verification images were acquired. A verification image representation and a verification force value forms a verification template for each of the first and second images and forces. Matching the first and second verification template with at least one of a plurality of stored fingerprint enrolment templates in a respective first and second matching step. When the first and second matching steps each results in a positive match between the respective verification template and a respective one of the plurality of stored fingerprint enrolment templates, providing a signal indicating successful authentication of the user.
A method for granting access for a user to a domain which is subject to an access restriction, wherein the user belongs to a group of one or more user shaving an access privilege in relation to the domain. The method comprises acquiring a first set of biometric data associated with the user. A first identification is successful if a comparison of the first set of biometric data to previously acquired data relating to the user, or to the group of users, indicates that the user belongs to the group. The method also comprises acquiring a second set of biometric data associated withth the user responsive to the first identification being successful. A second identification is successful if a comparison of the second set of biometric data to previously acquired data relating to the user indicates that the user has the access privilege.
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06C 9/00 - Transfer mechanisms, e.g. for transmitting figures from the input mechanism into the computing mechanism
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
The invention relates to methods and devices for updating encrypted biometric data of a user at a trusted network node. In an aspect of the invention a method performed by a first client device (100) is provided of updating encrypted biometric data of a user (200), the encrypted biometric data to be updated having been previously captured by the first client device (100)and registered at a trusted network node (300).
H04L 29/06 - Communication control; Communication processing characterised by a protocol
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
93.
METHODS FOR ENROLLING A USER AND FOR AUTHENTICATION OF A USER OF AN ELECTRONIC DEVICE
The present invention generally relates to methods for enrolling a user of an electronic device and authentication the user of the electronic device. The electronic device comprising a biometry sensor for acquiring sensing signals representative of a biometric feature, and a processor for computing a verification representation based on said sensing signals. The electronic device further includes a secure module isolated from said processor for computing an encrypted representation of said enrolment representation.
The present disclosure relates to an arrangement and method for facilitating a transaction, specifically combining user input provided to a biometric sensing system and visual identification for advancing the transaction. The present disclosure also relates to an electronic device for use in authenticating of the transaction and to a computer program product for operating an arrangement for facilitating the transaction.
G07F 7/10 - Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card together with a coded signal
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
G06Q 20/40 - Authorisation, e.g. identification of payer or payee, verification of customer or shop credentialsReview and approval of payers, e.g. check of credit lines or negative lists
There is provided a method for manufacturing a fingerprint sensor module. The method comprises: providing a carrier comprising an adhesive; providing a plurality of fingerprint sensor devices, each sensor device in turn comprising a sensing array comprising a plurality of sensing elements; attaching the plurality of fingerprint sensor devices on the carrier by means of the adhesive using a pick-and-place method to arrange the fingerprint sensor device on the carrier, such that the sensing array faces the adhesive; arranging an electronic component on each of the fingerprint sensor devices; and removing the fingerprint sensing device comprising the electrical component from the carrier using a pick-and-place method.
The invention relates to a method of a fingerprint sensing system (101) of enabling suppressing impairment data (120) present in an image captured by a fingerprint sensor (102) of the fingerprint sensing system, and a fingerprint sensing system (101) performing the method.
There is provided a fingerprint sensor module comprising: a fingerprint sensor device comprising a plurality of sensing elements for acquiring an image of a finger placed on a sensing surface of the sensor module. The sensor device comprises a trench at an edge of the fingerprint sensor device, the trench comprising electrically conductive connection pads for connecting the sensor device to external circuitry. The module further comprises a substrate comprising an electrically conductive trace and an electric component arranged on the substrate and in electrical contact with the conductive trace. The substrate is electrically and mechanically connected to the edge trench such that an electrical connection is formed between the sensor device and the electrical component of the substrate via the conductive trace. There is also provided a method for manufacturing the described module.
A method of classifying a finger touch in respect of a finger pressure on a surface of a fingerprint sensor(3), comprising the steps of: receiving(100), on the surface of the fingerprint sensor, a finger having a fingerprint topography; acquiring(101)a first time-sequence of fingerprint images; determining(102)a reference value of at least one image-related parameter indicative of a compression of the fingerprint topography, based on at least one fingerprint image in the first time-sequence of fingerprint images; acquiring(106)a second time-sequence of fingerprint images; determining (107)a test value of the at least one image-related parameter based on at least one fingerprint image in the second time-sequence of fingerprint images; and classifying(109)the finger touch based on a relation between the test value and the reference value.
The invention relates to methods and devices for enabling authentication of a user based on biometric data. In an aspect of the invention a method performed by a trusted network node (300) is provided for enabling authentication of a user (200) of a second client device (600) based on biometric data captured by a first client device (100).
G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
The invention relates to methods and devices for enabling authentication of a user based on biometric data. In an aspect of the invention, a method performed by a client device (100) of enabling authentication of user (200) of the client device (100) with a network node over a secure communication channel based on biometric data is provided. Further, an enrollment set is provided by the client device, which is used for the authentication, where said enrollment set comprises a fuzzy vault, which contains registered biometric data and a first secret key. The enrollment set also comprises transformed non-invertible biometric data, a second secret key and a secret random number.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
patents
