Patents by Inventor Paul Tin Choy Cheung

Paul Tin Choy Cheung 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).

  • Pocket scanners
    Patent number: 6891979
    Abstract: A method and system is disclosed for facilitating the input of information into a computing device by a scanning means. A pocket scanner that has only the minimum components/parts therein and will not operate without being connected to the computing device that subsequently receives scanning signals therefrom. In particular, the disclosed scanner does not have a separate power supply to energize the components/parts to work.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 10, 2005
    Assignees: Syscan, Inc., Shenzhen Syscan Technology Co., Ltd.
    Inventors: Darwin Hu, Alpha Hou, Jung-Chih Huang, Paul Tin Choy Cheung, Hongwei Sun, Yingfeng Lv
  • Pocket scanners
    Publication number: 20020131637
    Abstract: A method and system is disclosed for facilitating the input of information into a computing device by a scanning means. A pocket scanner that has only the minimum components/parts therein and will not operate without being connected to the computing device that subsequently receives scanning signals therefrom. In particular, the disclosed scanner does not have a separate power supply to energize the components/parts to work.
    Type: Application
    Filed: September 24, 2001
    Publication date: September 19, 2002
    Inventors: Darwin Hu, Alpha Hou, Jung-Chih Huang, Paul Tin Choy Cheung, Hongwei Sun, Yingfeng Lv