Abrégé

The apparatus for authenticating a person on the basis of at least one biometric parameter, particularly on the basis of a fingerprint, comprises a biometric detector (20) for detecting a biometric parameter, a skin detector (24) for identifying, in a contactless manner, living human skin within a scanning area. The skin detector (24) is provided with at least one group encompassing at least one radiation unit (26,28) and at least one reception unit (30). The at least one radiation unit (26,28) emits radiation in the direction of the scanning area at least at two different wavelengths ranging from 400 nm to 1500 nm, at least one of the wavelengths (26,28) ranging from 900 nm to 1500 nm, while the at least one reception unit (30) receives radiation reflected from the scanning area. The apparatus further comprises a signal evaluation unit (22) that is connected to the biometric detector (20) and the skin detector (24) and is used for evaluating the intensity of the reflected radiations of the radiation unit (26,28) which are received by the reception unit (30). Based on the intensities of the reflected radiations of the radiation unit (26,28) which are received by the reception unit (30) at the two different wavelengths, the signal evaluation unit (22) can determine whether the skin detector identifies living human skin. Detecting living human skin is a prerequisite for outputting an authentication signal.

Classes IPC  ?

• G01J 5/20 - Pyrométrie des radiations, p. ex. thermométrie infrarouge ou optique en utilisant des détecteurs électriques de radiations en utilisant des éléments résistants, thermorésistants ou semi-conducteurs sensibles aux radiations, p. ex. des dispositifs photoconducteurs

Abrégé

Disclosed is an apparatus for authenticating a person on the basis of at least one biometric parameter, particularly a fingerprint. Said apparatus comprises a biometric detector (20) for detecting a biometric parameter, a skin detector (24) for identifying, in a contactless manner, living human skin within a detection range. The skin detector (24) is provided with at least one group encompassing at least one radiation unit (26, 28) and at least one reception unit (30). The at least one radiation unit (26, 28) emits radiation in the direction of the detection range at least at two different wavelengths ranging from 400 nm to 1500 nm, at least one of the wavelengths (26, 28) ranging from 900 nm to 1500 nm, while the reception unit (30) receives radiation reflected from the detection range. The disclosed apparatus further comprises a signal evaluation unit (22) that is connected to the biometric detector (20) and the skin detector (24) and is used for evaluating the intensity of the reflected radiations of the radiation unit (26, 28) which are received by the reception unit (30). Based on the intensities of the reflected radiations of the radiation unit (26, 28) which are received by the reception unit (30) at the two different wavelengths, the signal evaluation unit (22) can determine whether the skin detector identifies living human skin. Detecting living human skin is a prerequisite for outputting an authentication signal.

Classes IPC  ?

• 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

Abrégé

A manually fed machine for working on materials, objects or the like, in particular a circular saw or a band saw bench, a planing bench, a bench drill, a press, or scissors, comprises a working tool (14), a feeding area (18) in front of the tool ( 14), within which a person's hand is present when feeding material to be worked on to the tool (14), and a detector (24) covering at least a section (22) of the feeding area (18) for a contactless detection of human skin. The detector (24) comprises at least one set of at least two transmitter diodes (32,34), and at least one receiver diode (36), the at least two transmitter diodes (32,34) emitting radiation towards said section (22) of the feeding area ( 18), said radiation being emitted at at least two different transmission wavelengths in the wavelength range between 400 nm and 1500 nm, wherein at least one of the transmitter diodes (32,34) radiates in the wavelength range between 900 nm and 1500 nm, whereas the at least one receiver diode (36) receives the radiation reflected from the section (22) of the feeding area (18). The manually fed machine is further provided with a signal evaluation unit (38) connected with the detector (24) for evaluating the intensity of the reflected radiation from the transmitter diodes (32,34) received by the receiver diode (36). The signal evaluation (38) unit determines from the intensities of the reflected radiation from the transmitter diodes (32,34), whether the detector (24) detects human skin. Upon the detection of human skin, a protective means (28) may be activated for protection against potential injuries caused by the tool (14).

Classes IPC  ?

• B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
• B23Q 11/06 - Dispositifs de sécurité pour les outils de coupe circulaires
• B23Q 17/24 - Agencements sur les machines-outils pour indiquer ou mesurer utilisant des moyens optiques