An aspect of the disclosure provides a cover glass configured to overlie a display screen of a user equipment, UE, device, the cover glass comprising: a substrate arranged to overlie a said display screen for protecting said display screen, wherein the substrate has a display-facing surface and a user-facing surface; and a capacitive biometric skin contact sensor coupled to the substrate and configured to resolve the contours of skin proximal to the sensor, the sensor comprising: a plurality of gate drive channels; a plurality of read-out channels; a sensor array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and an at least partially transparent capacitive sensing electrode coupled to the thin film transistor, and wherein each of the sensor pixels is coupled to both: (i) a gate drive channel to receive a scanning signal; and (ii) a read-out channel to provide a read-out signal; and conversion circuitry configured to process read-out signals received from sensor pixels to obtain biometric skin contact data therefrom; wherein the cover glass is arranged to couple to said UE device to enable transmission of biometric skin contact data from the conversion circuitry to a processor of said UE device.
A capacitive sensor comprising an array of sensor pixels, wherein each sensor pixel comprises: a capacitive sensing electrode; and a shield. The shield is electrically conductive and arranged to electrically shield the capacitive sensing electrode from parasitic coupling with other elements of the sensor. The sensor is configured to maintain the shield at a shielding voltage while a read-out signal is being obtained from the sensor pixel.
A capacitive sensor comprising: a plurality of read-out lines; and an array of sensor pixels, wherein each sensor pixel is connected to a read-out line and comprises a capacitive sensing electrode; wherein the sensor is configured to: obtain, from a first read-out line, a signal indicative of a charge on the capacitive sensing electrode of at least one sensor pixel connected to said first read-out line; and maintain a second read-out line at a read-out reference voltage while obtaining said signal from the first read-out line.
A method of operating a sensing element to sense a parameter, the sensing element comprising a sense TFT having a gate connection connected to a sensing electrode. the method comprising: providing a reference current (Ibias) through the sense TFT: providing a reference voltage (Vbias) at the gate connection to obtain a reference sample voltage (Vcap) from a source connection of the sense TFT: providing, at the gate connection, an indicator voltage (Vgate) dependent upon the parameter to be sensed whilst the reference current (Ibias) continues to be provided through the sense TFT to obtain a sensing voltage from the source connection of the sense TFT; and sensing the parameter based on the difference between the sensing voltage (VS) and the reference sample voltage (Vcap).
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G01D 5/24 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension en faisant varier la capacité
A sensor array (10) comprising a plurality of touch sensitive pixels, each pixel (12) comprising a capacitive sensing electrode (14) and a reference capacitor (16) connected in series with the capacitive sensing electrode (14) to provide an indicator voltage that is indicative of the proximity of a conductive object to be sensed.
The present disclosure provides a pixel structure comprising a plurality of layers for providing a touch sensitive pixel of a sensing array. The layers comprising: a thin film transistor; and a conductive layer deposited on a dielectric shield to be touched by an object to be sensed and arranged to provide a capacitive sensing electrode coupled to the thin film transistor. The present disclosure also provides methods of manufacturing such a pixel structure.
G06F 21/32 - Authentification de l’utilisateur par données biométriques, p. ex. empreintes digitales, balayages de l’iris ou empreintes vocales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06F 21/44 - Authentification de programme ou de dispositif
H01L 27/12 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant autre qu'un corps semi-conducteur, p.ex. un corps isolant
Disclosed herein is a skin contact sensor comprising a sensor array of sensor pixels, wherein: each sensor pixel comprises at least one thin film transistor, TFT, and a sensing electrode; a top surface of the sensor array provides a contact surface for contacting by an object to be sensed; and each sensor pixel is formed of a plurality of layers including an optical colour filter layer arranged to filter one or more colours of light.
A61B 5/1172 - Identification des personnes basée sur la morphologie ou l’aspect de leur corps ou de parties de celui-ci utilisant des empreintes digitales
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06F 21/30 - Authentification, c.-à-d. détermination de l’identité ou de l’habilitation des responsables de la sécurité
A sensor comprising: an active-matrix sensor array having a sensing area, the sensor array comprising: a plurality of sensor element pixels, each comprising a sensor element; and a plurality of read-out pixels, each operable to output a read-out signal; pixel switching circuitry configured to selectively electrically connect the sensor element of each sensor element pixel to at least one of the plurality of read-out pixels; and a controller configured to control operation of the pixel switching circuitry to select the portion of the sensing area which provides each read¬ out signal output from a read-out pixel.
H04N 25/443 - Extraction de données de pixels provenant d'un capteur d'images en agissant sur les circuits de balayage, p. ex. en modifiant le nombre de pixels ayant été échantillonnés ou à échantillonner en lisant partiellement une matrice de capteurs SSIS en lisant les pixels de zones 2D sélectionnées de la matrice, p. ex. pour le fenêtrage ou le zoom numérique
H04N 25/46 - Extraction de données de pixels provenant d'un capteur d'images en agissant sur les circuits de balayage, p. ex. en modifiant le nombre de pixels ayant été échantillonnés ou à échantillonner en combinant ou en groupant les pixels
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
A biometric skin contact sensor comprising an array of sensor pixels, wherein each sensor pixel comprises: a capacitive sensing electrode for accumulating a charge in response to proximity of a conductive object to be sensed; a reference capacitor connected to the capacitive sensing electrode; a sense voltage-controlled impedance, VCI, having a control terminal connected to a connection between the capacitive sensing electrode and the reference capacitor, the sense VCI having an impedance controlled by its control terminal voltage, and wherein the pixel is arranged so that, in response to a select voltage being applied to the pixel, the control terminal voltage of the sense VCI indicates the proximity of the conductive object to be sensed; and biasing circuitry comprising a one-way conduction path from a bias voltage connection to the control terminal of the sense VCI so that current flows from the bias voltage towards the control terminal of the sense VCI in response to the control terminal voltage of the sense VCI dropping below a floor value.
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and a current mirror assembly connected to the multiplexer to receive an input current therefrom and to provide a selected gain to the input current; wherein the sensor is configured to control both: (i) the number of read-out currents selected by the multiplexer, and (ii) the selected gain to the input current.
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: a contact sensing area comprising an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and an analog to digital converter configured to provide a digital signal based on said read-out currents; wherein the sensor is configured to control at least one of the current multiplexer and the ADC to switch between operation in a first sensing mode and a second sensing mode.
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; and an analog to digital converter comprising a dual slope integrator arranged to receive, as its input, either an output current or a reference voltage, wherein said output current is based on one or more read-out currents; wherein the biometric sensor is configured to: apply the output current as the input to the dual slope integrator for a charging time period to charge a capacitor of the dual slope integrator; apply the reference voltage as the input to the dual slope integrator for a discharging time period, wherein the discharging time period comprises the amount of time it takes for the capacitor to discharge; and determine the proximity to the one or more respective capacitive sensing electrodes of the conductive body based on an indication of the discharging time period.
A method of manufacturing a smartcard inlay the method comprising: providing a dielectric sheet; depositing, on a first major surface of the dielectric sheet, an active matrix TFT array comprising at least one conductive layer; wherein the at least one conductive layer is deposited on regions of the dielectric sheet outside the active matrix TFT array to provide electrical connections of the inlay.
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
G06K 19/073 - Dispositions particulières pour les circuits, p. ex. pour protéger le code d'identification dans la mémoire
G06K 19/077 - Détails de structure, p. ex. montage de circuits dans le support
An aspect of the disclosure provides a cover glass configured to overlie a display screen of a user equipment, UE, device, the cover glass comprising: a substrate arranged to overlie a said display screen for protecting said display screen, wherein the substrate has a display- facing surface and a user-facing surface; and a capacitive biometric skin contact sensor coupled to the substrate and configured to resolve the contours of skin proximal to the sensor, the sensor comprising: a plurality of gate drive channels; a plurality of read-out channels; a sensor array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and an at least partially transparent capacitive sensing electrode coupled to the thin film transistor, and wherein each of the sensor pixels is coupled to both: (i) a gate drive channel to receive a scanning signal; and (ii) a read-out channel to provide a read-out signal; and conversion circuitry configured to process read-out signals received from sensor pixels to obtain biometric skin contact data therefrom; wherein the cover glass is arranged to couple to said UE device to enable transmission of biometric skin contact data from the conversion circuitry to a processor of said UE device.
Disclosed herein is a biometric skin-contact sensor comprising: a contact sensing area comprising an array of pixels, each pixel comprising a thin film transistor and a capacitive sensing electrode for sensing contact; and a controller coupled to the contact sensing area and configured to operate the array of pixels to switch between a low resolution mode and a high resolution mode. In the low resolution mode the sensor is operable to obtain contact location data comprising an indication of a sub-region of the contact sensing area in which contact is sensed. In the high resolution mode the sensor is operable to obtain biometric data for skin interacting with the contact sensing area by identifying a difference in capacitance between valleys and ridges of the skin.
G06F 21/32 - Authentification de l’utilisateur par données biométriques, p. ex. empreintes digitales, balayages de l’iris ou empreintes vocales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06F 21/44 - Authentification de programme ou de dispositif
H01L 27/12 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant autre qu'un corps semi-conducteur, p.ex. un corps isolant
A method to authenticate a user by means of a fingerprint sensor, which is capable of simultaneously acquiring the fingerprints of a hand, the method comprising: an enrollment process (100), during which the features of first fingerprints (Ei) of the fingers of the hand are acquired (101-103), a variation model (Gij) indicating a plausible mutual position variation for each pair of first fingerprints (Ei, Ej) is determined (104) based on the respective features and stored (105); and a comparison process (200), during which features of successive fingerprints (Ei, Ej) of the fingers of the hand are acquired (201-203), a degree of similarity between each one of the first fingerprints (Ei) and each one of the successive fingerprints (Ck) is determined (204) based on a comparison of the respective features, a degree of plausibility of mutual position of pairs of fingerprints (, ) of a set (P) of pairs of fingerprints, each comprising one of the first fingerprints (Ei) and that of the successive fingerprint (Cki) offering the highest degree of similarity, is determined (207, 208) based on the features of the pairs of fingerprints and on the variation model (Gij) of the first fingerprints (Ei, Ej) of the pairs of fingerprints, the user is recognized (209-211) and the variation models (Gij) are updated (212) based on the degrees of similarity and on the mutual position plausibility degrees.
The present disclosure provides a pixel structure comprising a plurality of layers for providing a touch sensitive pixel of a sensing array. The layers comprising: a thin film transistor; and a conductive layer deposited on a dielectric shield to be touched by an object to be sensed and arranged to provide a capacitive sensing electrode coupled to the thin film transistor. The present disclosure also provides methods of manufacturing such a pixel structure.
G06F 21/32 - Authentification de l’utilisateur par données biométriques, p. ex. empreintes digitales, balayages de l’iris ou empreintes vocales
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 21/44 - Authentification de programme ou de dispositif
H01L 27/12 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant autre qu'un corps semi-conducteur, p.ex. un corps isolant
Disclosed herein is a pointing device for controlling the position of a pointer in a graphical user interface, GUI, of a computer. The device comprises: an operation interface for sensing operation by an operator of the device for controlling the pointer in the GUI, and a biometric skin-contact sensor configured to obtain biometric identifier data, for identifying the operator, by sensing contact of surface contours of the operator's skin. The biometric skin-contact sensor is a contact surface of the operation interface configured to obtain the biometric identifier data during the operation to control the pointer.
G06F 21/32 - Authentification de l’utilisateur par données biométriques, p. ex. empreintes digitales, balayages de l’iris ou empreintes vocales
G06F 21/44 - Authentification de programme ou de dispositif
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
Disclosed herein is a pixel structure comprising a plurality of layers for providing a touch sensitive pixel of a sensing array. The pixel comprises: a thin film transistor, a capacitive sensing electrode, and a reference capacitor comprising a first plate and a second plate. The capacitive sensing electrode and the second plate of the reference capacitor are connected to a gate region of the thin film transistor. Methods of manufacturing such a touch sensitive pixel are also disclosed herein.
G06F 21/32 - Authentification de l’utilisateur par données biométriques, p. ex. empreintes digitales, balayages de l’iris ou empreintes vocales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/041 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06F 21/44 - Authentification de programme ou de dispositif
H01L 27/12 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant autre qu'un corps semi-conducteur, p.ex. un corps isolant
A sensor array (10) comprising a plurality of touch sensitive pixels, each pixel (12) comprising a capacitive sensing electrode (14) and a reference capacitor (16) connected in series with the capacitive sensing electrode (14) to provide an indicator voltage that is indicative of the proximity of a conductive object to be sensed.
A method of manufacturing a smartcard inlay the method comprising: providing a dielectric sheet; depositing, on a first major surface of the dielectric sheet, an active matrix TFT array comprising at least one conductive layer; wherein the at least one conductive layer is deposited on regions of the dielectric sheet outside the active matrix TFT array to provide electrical connections of the inlay.
G06K 19/07 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p. ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
23.
BIOMETRIC SKIN CONTACT SENSOR AND METHODS OF OPERATING A BIOMETRIC SKIN CONTACT SENSOR
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and a current mirror assembly connected to the multiplexer to receive an input current therefrom and to provide a selected gain to the input current; wherein the sensor is configured to control both: (i) the number of read-out currents selected by the multiplexer, and (ii) the selected gain to the input current.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
24.
BIOMETRIC SKIN CONTACT SENSOR AND METHODS OF OPERATING A BIOMETRIC SKIN CONTACT SENSOR
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: a contact sensing area comprising an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; a current multiplexer connected to a plurality of the read-out channels to receive read-out currents therefrom; and an analog to digital converter configured to provide a digital signal based on said read-out currents; wherein the sensor is configured to control at least one of the current multiplexer and the ADC to switch between operation in a first sensing mode and a second sensing mode.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
25.
BIOMETRIC SKIN CONTACT SENSOR AND METHODS OF OPERATING A BIOMETRIC SKIN CONTACT SENSOR
A capacitive biometric skin contact sensor configured to resolve the contours of skin in contact with the sensor, wherein the sensor comprises: an array of sensor pixels, wherein each sensor pixel comprises a thin film transistor and a capacitive sensing electrode connected to the thin film transistor; a plurality of gate drive channels, wherein each gate drive channel is arranged to provide a gate drive signal to one or more of the sensor pixels; a plurality of read-out channels, wherein each read-out channel is arranged to receive a read-out current from one or more of the sensor pixels, each read-out current being indicative of a proximity to a respective capacitive sensing electrode of a conductive object to be sensed; and an analog to digital converter comprising a dual slope integrator arranged to receive, as its input, either an output current or a reference voltage, wherein said output current is based on one or more read-out currents; wherein the biometric sensor is configured to: apply the output current as the input to the dual slope integrator for a charging time period to charge a capacitor of the dual slope integrator; apply the reference voltage as the input to the dual slope integrator for a discharging time period, wherein the discharging time period comprises the amount of time it takes for the capacitor to discharge; and determine the proximity to the one or more respective capacitive sensing electrodes of the conductive body based on an indication of the discharging time period.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
26.
BIOMETRIC SKIN CONTACT SENSOR AND METHOD OF OPERATING A BIOMETRIC SKIN CONTACT SENSOR
A biometric skin contact sensor comprising an array of sensor pixels, wherein each sensor pixel comprises: a capacitive sensing electrode for accumulating a charge in response to proximity of a conductive object to be sensed; a reference capacitor connected to the capacitive sensing electrode; a sense voltage-controlled impedance, VCI, having a control terminal connected to a connection between the capacitive sensing electrode and the reference capacitor, the sense VCI having an impedance controlled by its control terminal voltage, and wherein the pixel is arranged so that, in response to a select voltage being applied to the pixel, the control terminal voltage of the sense VCI indicates the proximity of the conductive object to be sensed; and biasing circuitry comprising a one-way conduction path from a bias voltage connection to the control terminal of the sense VCI so that current flows from the bias voltage towards the control terminal of the sense VCI in response to the control terminal voltage of the sense VCI dropping below a floor value.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
27.
METHOD TO AUTHENTICATE A USER IN AN ELECTRONIC DEVICE COMPRISING A FINGERPRINT SENSOR
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
28.
BIOMETRIC SKIN CONTACT SENSING APPARATUS AND METHOD
Disclosed herein is a biometric skin-contact sensor comprising: a contact sensing area comprising an array of pixels, each pixel comprising a thin film transistor and a capacitive sensing electrode for sensing contact; and a controller coupled to the contact sensing area and configured to operate the array of pixels to switch between a low resolution mode and a high resolution mode. In the low resolution mode the sensor is operable to obtain contact location data comprising an indication of a sub-region of the contact sensing area in which contact is sensed. In the high resolution mode the sensor is operable to obtain biometric data for skin interacting with the contact sensing area by identifying a difference in capacitance between valleys and ridges of the skin.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
Disclosed herein is a pixel structure comprising a plurality of layers for providing a touch sensitive pixel of a sensing array. The pixel comprises: a thin film transistor, a capacitive sensing electrode, and a reference capacitor comprising a first plate and a second plate. The capacitive sensing electrode and the second plate of the reference capacitor are connected to a gate region of the thin film transistor. Methods of manufacturing such a touch sensitive pixel are also disclosed herein.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
The present disclosure provides a pixel structure comprising a plurality of layers for providing a touch sensitive pixel of a sensing array. The layers comprising: a thin film transistor; and a conductive layer deposited on a dielectric shield to be touched by an object to be sensed and arranged to provide a capacitive sensing electrode coupled to the thin film transistor. The present disclosure also provides methods of manufacturing such a pixel structure.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
31.
POINTING DEVICE WITH BIOMETRIC SKIN-CONTACT SENSOR, AND CORRESPONDING METHOD
Disclosed herein is a pointing device for controlling the position of a pointer in a graphical user interface, GUI, of a computer. The device comprises: an operation interface for sensing operation by an operator of the device for controlling the pointer in the GUI, and a biometric skin-contact sensor configured to obtain biometric identifier data, for identifying the operator, by sensing contact of surface contours of the operator's skin. The biometric skin-contact sensor is a contact surface of the operation interface configured to obtain the biometric identifier data during the operation to control the pointer.
G06F 3/0354 - Dispositifs de pointage déplacés ou positionnés par l'utilisateurLeurs accessoires avec détection des mouvements relatifs en deux dimensions [2D] entre le dispositif de pointage ou une partie agissante dudit dispositif, et un plan ou une surface, p. ex. souris 2D, boules traçantes, crayons ou palets
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
A sensor array (10) comprising a plurality of touch sensitive pixels, each pixel (12) comprising a capacitive sensing electrode (14) and a reference capacitor (16) connected in series with the capacitive sensing electrode (14) to provide an indicator voltage that is indicative of the proximity of a conductive object to be sensed.
G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
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