Sonavation, Inc.

Rainer M Schmitt

Ronald A Craig

Christian Liautaud

Richard Irving

Ronald A Kropp

A system, apparatus and method for obtaining biometric data from characteristics of a fingerprint and obtaining characteristics of subcutaneous structures that are embedded within finger tissue and located in relation to the fingerprint.

Biometric sensing device for three dimensional imaging of subcutaneous structures embedded within finger tissue

The invention provides embodiments of an apparatus and for improved, higher quality and higher resolution acoustic impedance scanning of an object through a barrier. Such acoustic impedance scanning can be employed to obtain biometric information of a person via fingerprint pattern.

Acoustic sensing through a barrier

Method and system for beam control in biometric sensing

Provided is a transducer having first and second surfaces including first electrode lines positioned along the first surface in a first direction and configured for grounding and second electrode lines positioned along the second surface in a direction orthogonal to the first direction. The second electrode lines are configured switching between receiving and transmitting in an interlaced manner.

Piezoelectric identification device and applications thereof

The invention provides an improved acoustic energy generating apparatus that includes an improved backing structure. The improved backing structure employs protrusions that are not located in a uniform pattern along a forward side surface of the backing structure, to realize improved re-direction of acoustic energy towards a forward direction relative to the acoustic energy generating apparatus.

Apparatus for acoustic sensing

Provided is a Fingerprint sensor using Acoustic Impediography. The sensor includes an Application Specific Integrated Circuit (ASIC or IC) and an array of mechanical resonator used as sensing elements. The array of sensing elements contains multiple sensing elements arranged in rows and columns.

Multiplexer for a piezo ceramic identification device

Provided is a method for analyzing a fingerprint, including storing a captured fingerprint in a memory; and analyzing the stored fingerprint using acoustic sensing principles.

Method and system for acoustic impediography biometric sensing

Provided is a fingerprint sensor configured for detecting a pulse of a human or other mammal. A time series of fingerprint images is analyzed to identify time-based variations in spatial location and/or pressure from ridges of a finger, where the variations result from time-based variations in the flow of blood. Based on the analysis, a determination is made if the time-based variations are indicative of a pulse in a digit of the person, and if so, a determination is made as to the pulse rate based on the variations. Imaging sensitivity of the digit at the fingerprint sensor is optimized for determination of the pulse. The time series of fingerprint images is also analyzed to determine if there is bulk motion of the digit, in which case pulse rate analysis is temporarily suspended.

Pulse-rate detection using a fingerprint sensor

Provided is a fingerprint sensor including one or more mechanical devices for capturing the fingerprint. The mechanical devices include a matrix of pillars and are configured to be mechanically damped based upon an applied load. A q factor of the pillars is optimized by adjusting a distance between pillars within the matrix in accordance with a quarter shear wavelength at an operating wavelength.

Mechanical resonator optimization using shear wave damping

Provided is a fingerprint sensor including one or more mechanical devices for capturing the fingerprint. The resonators are configured to be mechanically damped based upon an applied load.

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Palm Beach Gardens, FL, United States of America

Rainer M Schmitt