Patents by Inventor France LALIBERTÉ

France LALIBERTÉ 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).

  • Correction and detection of defective capacitive sensor elements of a fingerprint sensor
    Patent number: 10089546
    Abstract: A method of correcting charge values acquired from a capacitive fingerprint sensor, comprising acquiring a list of one or more defective capacitive sensor elements and for defective capacitive sensor element in the list, selecting its position as a first position and: performing a first operation by placing a first filter window about the first position and computing a replacement value for the first position from charge values within the first filter window, but forgoing computing a replacement value for the first position in case a first threshold number of defective capacitive sensor elements located within the first filter window is exceeded; in case the first operation forgo computing a replacement value for the first position, performing a second operation by placing a second filter window about the first position and computing a replacement value for the first position from charge values within the second filter window, but forgoing computing a replacement value for the first position in case a seco
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 2, 2018
    Assignee: FINGERPRINT CARDS AB
    Inventors: Thierry Bellier, France Laliberté
  • CORRECTION AND DETECTION OF DEFECTIVE CAPACITIVE SENSOR ELEMENTS OF A FINGERPRINT SENSOR
    Publication number: 20170344841
    Abstract: A method of correcting charge values acquired from a capacitive fingerprint sensor, comprising acquiring a list of one or more defective capacitive sensor elements and for defective capacitive sensor element in the list, selecting its position as a first position and: performing a first operation by placing a first filter window about the first position and computing a replacement value for the first position from charge values within the first filter window, but forgoing computing a replacement value for the first position in case a first threshold number of defective capacitive sensor elements located within the first filter window is exceeded; in case the first operation forgo computing a replacement value for the first position, performing a second operation by placing a second filter window about the first position and computing a replacement value for the first position from charge values within the second filter window, but forgoing computing a replacement value for the first position in case a second
    Type: Application
    Filed: February 27, 2017
    Publication date: November 30, 2017
    Applicant: Fingerprint Cards AB
    Inventors: Thierry BELLIER, France LALIBERTÉ