Patents by Inventor Erik Jonathan Thompson

Erik Jonathan Thompson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • APPARATUS AND METHOD FOR REDUCING NOISE IN FINGERPRINT SENSING CIRCUITS
    Publication number: 20120148122
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Application
    Filed: February 13, 2012
    Publication date: June 14, 2012
    Inventors: Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathan Thompson
  • Apparatus and method for reducing noise in fingerprint sensing circuits
    Patent number: 8116540
    Abstract: An apparatus for reducing noise in fingerprint sensing circuits is disclosed in one embodiment of the invention as including a fingerprint sensing area onto which a user can apply a fingerprint. An analog front end is coupled to the fingerprint sensing area and is configured to generate an analog response signal. An analog-to-digital converter (ADC) samples the analog response signal and converts the sample to a digital value, which may be received by a digital device such as a processor or CPU. To reduce the amount of the noise that is present in the analog response signal and therefore reflected in the digital value, the digital device may be shut down while the ADC is sampling the analog response signal.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 14, 2012
    Assignee: Validity Sensors, Inc.
    Inventors: Gregory Lewis Dean, Richard Alexander Erhart, Jaswinder Jandu, Erik Jonathan Thompson