Abstract: A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols.

Abstract: Methods and systems are provided for performing a biometric measurement on an individual. A purported skin site of the individual is illuminated under a plurality of distinct optical conditions during a single illumination session. Light scattered beneath a surface of the purported skin site is received separately for each of the plurality of distinct optical conditions. A multispectral image of the purported skin site is derived from the received light. A biometric function is performed with the derived multispectral image.

Abstract: Methods and apparatuses for performing biometric determinations using optical spectroscopy of tissue. The biometric determinations that are disclosed include determination or verifications of identity, estimation of age, estimation of sex, determination of sample liveness and sample authenticity. The apparatuses disclosed are based upon discrete light sources such as light emitting diodes, laser diodes, vertical cavity surface emitting lasers, and broadband sources with multiple narrow-band optical filters. The multiple light sources are encoded in a manner that the tissue response for each source can be efficiently measured. The light sources are spaced at multiple distances from a detector to contribute differing information to the biometric determination task as do light sources with different wavelength characteristics.

Abstract: A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols.

Abstract: A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols.

Abstract: Embodiments of a biometric system with an optically adaptive interface are described. In some embodiments, an optically adaptive interface changes optical characteristics in response to the placement of a finger on the optically adaptive interface. In some embodiments, the optically adaptive interface can include an active layer and a surface layer. The active layer and the surface layer can have different optical properties. For example, one layer may be opaque and the other transparent, the two layers may have complementary colors, the two layers may have orthogonal polarization reflectors, one layer may be reflective and the other absorptive, etc. Moreover, the active layer can be a fluid with either high or low viscosity. For example, the viscosity can be such that the active layer fluid is either completely displaced or not displaced in locations corresponding to finger valleys.

Abstract: Methods and sensors are disclosed for executing a biometric function. Illumination light is generated and directed to a deformable layer when the deformable layer is in a state of deformation resulting from pressure applied to the deformable layer by a skin site. Light scattered from the deformable layer is received. A fingerprint pattern of the skin site is determined from the received light. The biometric function is performed with the determined fingerprint pattern.

Abstract: Methods and systems are provided for performing a biometric measurement on an individual. A purported skin site of the individual is illuminated under a plurality of distinct optical conditions during a single illumination session. Light scattered beneath a surface of the purported skin site is received separately for each of the plurality of distinct optical conditions. A multispectral image of the purported skin site is derived from the received light. A biometric function is performed with the derived multispectral image.

Abstract: Embodiments disclose a two imager biometric sensor. In some embodiments, the two imagers can include a direct imager and a TIR imager. In some embodiments, multispectral light sources can be used to illuminate target tissue imaged by two imagers. In some embodiments, composite images can be created from images detected using both imagers.

Abstract: Embodiments of the invention provide for a biometric system with an optically adaptive interface. In some embodiments, an optically adaptive interface changes optical characteristics in response to the placement of a finger on the optically adaptive interface. In some embodiments, the optically adaptive interface can include an active layer and a surface layer. The active layer and the surface layer can have different optical properties. For example, one layer may be opaque and the other transparent, the two layers may have complementary colors, the two layers may have orthogonal polarization reflectors, one layer may be reflective and the other absorptive, etc. Moreover, the active layer can be a fluid with either high or low viscosity. For example, the viscosity can be such that the active layer fluid is either completely displaced or not displaced in locations corresponding to finger valleys.

Abstract: Biometric terminals are disclosed that include a biometric reader, an input device, and a processor coupled with the biometric reader and the input device. The processor has instructions to read a biometric measure from a user with the biometric reader. It also has instructions to receive an encoded signal from a handheld device with the input device, the encoded signal including an instruction to update a biometric access system. Instructions are included to decode the encoded signal and to modify biometric access by the user to the biometric access system in accordance with the instruction to update the biometric access system. Update of the biometric access system is acknowledged.

Abstract: A number of biometric systems and methods are disclosed. A system according to one embodiment includes an illumination subsystem, an imaging subsystem, and an analyzer. The illumination subsystem is disposed to illuminate a target space. The imaging subsystem is configured to image the target space under distinct optical conditions. The analyzer is provided in communication with the illumination subsystem, the imaging subsystem, and the three-dimensional subsystem. The analyzer also has instructions to operate the subsystems to collect substantially simultaneously a plurality of images of the object disposed at the predetermined spatial location under multispectral conditions.

Abstract: A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols.

Abstract: Methods and systems are disclosed for performing a biometric function. A means is provided for positioning a hand of an individual in a substantially repeatable manner. An optical direct-imaging sensor is disposed relative to the means for positioning to image a portion of the hand when the hand is positioned by the means for positioning. A computational unit in communication with the optical direct-imaging sensor has instructions to operate the optical direct-imaging sensor to generate an image of the portion of the hand, and instructions to perform the biometric function with the generated image.

Abstract: A multispectral sensor is provided with an illumination source and a digital imaging system. The illumination source is disposed to provide light at multiple wavelengths to an object. The digital imaging system is disposed to receive light scattered from the object and has a digital array of light detectors and a color filter array. The color filter array has a multiple distributed filter elements, each of which is adapted to transmit light of one of a limited number of specified narrowband wavelength ranges. The color filter array is disposed to filter the light scattered from the object prior to encountering the digital array of light detectors.

Abstract: A number of biometric systems and methods are disclosed. A system according to one embodiment includes an illumination subsystem, an imaging subsystem, and an analyzer. The illumination subsystem is disposed to illuminate a target space. The imaging subsystem is configured to image the target space under distinct optical conditions. The analyzer is provided in communication with the illumination subsystem, the imaging subsystem, and the three-dimensional subsystem. The analyzer also has instructions to operate the subsystems to collect substantially simultaneously a plurality of images of the object disposed at the predetermined spatial location under multispectral conditions.

Abstract: A variety of forms of machine-readable symbols are disclosed, as well as methods and systems of constructing machine-readable symbols, methods and systems of acquiring machine-readable symbols, and methods and systems of decoding machine-readable symbols.

Abstract: Some embodiments of the present invention disclose systems and methods for a multiplexed multispectral imaging, object discrimination, background discrimination, and/or object identification. In some embodiments, a multispectral sensor is provided that includes at least two illumination sources and an imager with a color filter array. The two illumination sources can illuminate a platen with light having distinct illumination angles as well as distinct characteristics, such as distinct wavelengths or wavelength bands and/or distinct polarization conditions. The color filter array, which may be integral with the imager or separate therefrom, can filter light based on the specific distinctions between the two illumination sources. A single image of an object at the platen can be acquired. Individual pixels of the image will then be highly associated with one or the other illumination source. Because of the filtering by the color filter array, this image will include information about the illumination angle.

Abstract: Methods are disclosed for transmitting information from a handheld device to a terminal. The information is encoded as a barcode pattern. The barcode pattern is generated on a display of the handheld device. A size of the barcode pattern is periodically modulated on the display while maintaining internal relative dimensions within the barcode pattern. The periodically modulating barcode pattern is displayed to an optical reader of the terminal.

Abstract: Embodiments of the invention provide for a biometric system with an optically adaptive interface. In some embodiments, an optically adaptive interface changes optical characteristics in response to the placement of a finger on the optically adaptive interface. In some embodiments, the optically adaptive interface can include an active layer and a surface layer. The active layer and the surface layer can have different optical properties. For example, one layer may be opaque and the other transparent, the two layers may have complementary colors, the two layers may have orthogonal polarization reflectors, one layer may be reflective and the other absorptive, etc. Moreover, the active layer can be a fluid with either high or low viscosity. For example, the viscosity can be such that the active layer fluid is either completely displaced or not displaced in locations corresponding to finger valleys.