Patents by Inventor Christopher R. Hammer

Christopher R. Hammer 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).

  • Method and apparatus to determine direction of motion in a sensor array of a touch sensing device
    Patent number: 8085252
    Abstract: Direction of motion in a sensor array of a touch sensing device may be determined using a rule-based algorithm. A presence of a conductive object on a sensing device may be detected. First, second, and third locations of the detected presence of the conductive object may be determined. The first location may be compared with the second location using the rule-based algorithm, and a first direction of motion of the conductive object may be recognized based on the comparison. The second location may be compared with the third location using the rule-based algorithm, and the same first direction of motion of the conductive object may be recognized based on the comparison.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 27, 2011
    Assignee: Cypress Semiconductor Corporation
    Inventors: Mark R. Lee, Christopher R. Hammer