A biometric system may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be capable of controlling the light source system to emit light and of receiving signals from the ultrasonic sensor array corresponding to acoustic waves emitted from portions of a target object in response to being illuminated with the light emitted by the light source system. The control system may be capable of performing a user authentication process that is based, at least in part, on the signals from the ultrasonic sensor array.

A photon-drive fingerprint identification module configured to detect a fingerprint of a finger is provided, and the photon-drive fingerprint identification module includes at least a light emitting unit and a light detecting semiconductor array. The light emitting unit is configured to emit a detecting light to the finger, and the finger and the fingerprint reflect the detecting light and turn it into a signal light. The light detecting semiconductor array includes a plurality of light detecting semiconductor units arranged in an array, and the light detecting semiconductor units are configured to receive the signal light reflected by the finger and generate a plurality of electrical signals. Each of the light detecting semiconductor units sequentially includes an antireflection structure, a first type doped semiconductor layer and a second type doped semiconductor layer. The first type doped semiconductor layer is stacked between the antireflection structure and the second type doped semiconductor layer.

A biometric authentication device includes: a memory; and a processor coupled to the memory and the processor configured to execute a process, the process comprising: acquiring a plurality of sets of palm images taken under different illumination conditions of an illumination source from one another in obtaining images of a palm with light emitted from the illumination source; adjusting a time interval at which the imaging device acquires the image sets, in accordance with a condition for imaging the palm; extracting a biological feature from each of the image sets; and comparing each biological feature extracted by the extracting with a biological feature registered in advance.

A lens system includes a first lens array assembly including a first plurality of cells, each cell of the first plurality of cells configured to exhibit a pair of Fourier transform lenses, and a second lens array assembly including a second plurality of cells, each cell of the second plurality of cells configured to exhibit a pair of Fourier transform lenses. The first and second lens array assemblies are positioned relative to one another along an optical axis of the lens system such that an image of an object is provided at an image conjugate distance from the second lens array assembly.

A biometric capture device includes: a first light source configured to emit a light of a first wavelength to a biometric body; a second light source configured to emit a light of a second wavelength different from the first wavelength to the biometric body; a camera configured to capture a reflected light from the biometric body; a memory; and a processor coupled to the memory and the processor configured to execute a process, the process including: acquiring a biometric image based on a component of the first wavelength from an image captured by the camera; acquiring distance information between the biometric body and the camera based on a component of the second wavelength from the image captured by the camera; and correcting the biometric image based on the distance information.

A computer implemented system and method for acquisition of advance consent for each instance of PII use includes the steps of receiving reference specimens for a user, electronically storing the reference specimens on a distributed block chain. When PII of the user is to be used, a consent session is electronically requested for the user. Consent-session specimens are electronically received from the user in response to the electronic request for the consent-session after completion of the consent session. The consent-session specimens include a video of the user making an affirmative consent statement, a photograph of fingerprints of the user, and a photograph of identification (ID) credentials of the user. A degree to which each of the consent-session specimens from the user match the reference specimens for the user is electronically determined and the transaction information is electronically stored on the distributed block chain.

A fingerprint recognizing sensor with fast recognition, including: a substrate, a conductive plate, a passivation layer, a charging capacitor, a switch group, and an analog to digital (AD) converter; the conductive plate being arranged on the substrate; the passivation layer being arranged on the conductive pad for receiving a finger to detect a fingerprint; the switch group including a first switch and a second switch; the first switch controlling an input voltage to charge the charging capacitor; two ends of the second switch being electrically connected to the conductive plate and the first switch as well as the charging capacitor, respectively; the AD converter being electrically connected to the charging capacitor; where the second switch controls the charging capacitor to perform charge sharing for multiple times; and the AD converter outputs a fingerprint recognizing signal according to a residual voltage after the charge sharing.

Certain aspects of the present disclosure provide techniques for selectively activating a fingerprint sensor in an electronic device. A method that may be performed by the electronic device includes detecting a finger hover above the display module, activating the fingerprint sensor based, at least in part, on the detected finger hover, and providing, in response to detecting the finger hover, feedback information to assist in scanning the finger using the fingerprint sensor.

Provided is an expansion electronic device suitable for being disposed at an edge of a main framework having therein a motherboard. The expansion electronic device includes an expansion frame bar and functional module. The expansion frame bar has thereon an expansion box. The expansion box has an access opening. The inner rim of the access opening has an inner annular wall. The access opening is covered with a protective cover. The outer rim of the protective cover has an outer annular wall corresponding in shape to the inner annular wall. A resilient annular surface is defined on the outer surface of the outer annular wall. The resilient annular surface abuts against the inner annular wall to hermetically seal the access opening. The functional module is disposed in the expansion box and electrically connected to a control wire exiting the functional module and electrically connected to the motherboard.

Embodiments of the present invention disclose a non-contact 3D fingerprint capturing apparatus and method. The apparatus includes: a housing, a circuit board and a fingerprint reader that are disposed in the housing; the circuit board includes a first control module; the fingerprint reader includes a fingerprint capturing module and a positioning module; the positioning module casts light to a first position point on a finger object; the fingerprint capturing module receives light reflected from the first position point, converts an optical signal into an electrical signal, and sends the electrical signal to the first control module; the first control module judges, according to the electrical signal, whether the first position point is a standard point, the standard point being an aperture with a diameter less than a first threshold and an illumination intensity greater than a second threshold; if the first position point is a standard point, the fingerprint capturing module captures fingerprint images from multiple directions, and transmits the fingerprint images to the first control module; and the first control module creates a 3D fingerprint image according to the fingerprint images. The embodiments of the present invention further provide a non-contact 3D fingerprint capturing method.