1
Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathon Thompson: Fingerprint sensing circuit having programmable sensing patterns. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William A Furman, May 31, 2011: US07953258 (65 worldwide citation)

A fingerprint sensor with programmable sensing patterns is disclosed in one embodiment of the invention as including a fingerprint sensing circuit having multiple I/O interconnects. The I/O interconnects are configured to sequentially drive a plurality of fingerprint sensing elements. A memory devic ...


2
Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathon Thompson: Apparatus and method for reducing parasitic capacitive coupling and noise in fingerprint sensing circuits. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, August 23, 2011: US08005276 (64 worldwide citation)

A fingerprint sensing circuit for reducing noise and parasitic capacitive coupling is disclosed in one embodiment of the invention as including a plurality of transmitting elements to sequentially emit a probing signal. A digital ground is provided to ground digital components in the fingerprint sen ...


3
David J Geoffroy, Jeffrey J Buxton: Methods and apparatus for acquiring a swiped fingerprint image. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, December 13, 2011: US08077935 (58 worldwide citation)

A method for assisting a user of a fingerprint sensing system includes sensing a position of a user's finger relative to a swiped fingerprint image sensor, and providing to the user, in response to the sensed finger position, an indication of finger placement relative to the fingerprint image sensor ...


4
Fred George Benkley, David Joseph Geoffroy, Pallavi Satyan: Method and apparatus for fingerprint image reconstruction. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, March 6, 2012: US08131026 (58 worldwide citation)

Enhanced accuracy finger position and motion sensors devices, algorithms, and methods are disclosed that can be used in a variety of different applications. The sensors can be used in conjunction with partial fingerprint imagers to produce improved fingerprint scanners. Such improved scanners can us ...


5
Richard Brian Nelson, Richard Alexander Erhart, Armando Leon Perezselsky: Apparatus and method for protecting fingerprint sensing circuitry from electrostatic discharge. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, January 31, 2012: US08107212 (53 worldwide citation)

A fingerprint sensor in accordance with the invention includes a non-conductive substrate providing a first surface onto which a user can apply a fingerprint to be sensed. A sensor circuit is applied to a second surface of the non-conductive substrate opposite the first surface to sense a fingerprin ...


6
Richard A Erhart, Gregory L Dean, Frank Schwab: Method and system for electronically securing an electronic device using physically unclonable functions. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, October 16, 2012: US08290150 (48 worldwide citation)

The invention is directed to a system for securing an integrated circuit chip used in an electronic device by utilizing a circuit or other entity to produce physically unclonable functions (PUF) circuit to generate encryption keys, such as an RSA public or private key. A PUF circuit, according to it ...


7
Fred George Benkley, David Joseph Geoffroy, Pallavi Satyan: Method and algorithm for accurate finger motion tracking. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, July 24, 2012: US08229184 (39 worldwide citation)

Enhanced accuracy finger position and motion sensors devices, algorithms, and methods are disclosed that can be used in a variety of different applications. The sensors can be used in conjunction with partial fingerprint imagers to produce improved fingerprint scanners. The finger motion sensors may ...


8
Fred George Benkley, David Joseph Geoffroy, Pallavi Satyan: Method and apparatus for two-dimensional finger motion tracking and control. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, January 22, 2013: US08358815 (38 worldwide citation)

Enhanced accuracy finger position and motion sensors devices, algorithms, and methods are disclosed that can be used in a variety of different applications. The sensors can be used in conjunction with partial fingerprint imagers to produce improved fingerprint scanners. The finger motion sensors may ...


9
Fred George Benkley, David Joseph Geoffroy: Method and apparatus for fingerprint motion tracking using an in-line array for use in navigation applications. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, April 24, 2012: US08165355 (37 worldwide citation)

The invention provides an independent relative motion sensor for use in navigation operations using a fingerprint that do not require the power demanded by conventional devices. The independent relative motion sensor includes a linear array of sensing elements that captures a narrow string of data t ...


10
Lawrence C Gardner: Smart card system with ergonomic fingerprint sensor and method of using. Validity Sensors, Greenberg Traurig, Cecily Anne O Regan, William C Cray, October 2, 2012: US08276816 (35 worldwide citation)

A unitized smart card device with a partial fingerprint sensor, ergonomic guides and a processor is disclosed. The smart card contains secure memory, battery, and a processor to run the fingerprint sensor. The ergonomic guides help insure that the users finger properly swipes the fingerprint sensor. ...