Patents by Inventor Wing-Lim Chiu

Wing-Lim Chiu 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).

  • Multi-directional hand scanner and mouse
    Patent number: 5355146
    Abstract: A computer system incorporating a combined computer pointing device (mouse) and hand scanner is disclosed. When used as a hand scanner, the device transmits signals representing image data, position information and rotation information to the computer. The computer assembles from the received signals a unified image from possibly non-aligned and overlapping image data and stores the resulting image.
    Type: Grant
    Filed: January 30, 1991
    Date of Patent: October 11, 1994
    Assignee: BMC Micro-Industries Ltd.
    Inventors: Wing-Lim Chiu, Wai-Kwok Chew