Patents by Inventor Cheng Cheong Gilbert Wong

Cheng Cheong Gilbert Wong 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).

  • Patent number: 6696922
    Abstract: An interactive pager docking system includes a docking cradle which is powered by a rechargeable battery, and includes a battery charger module which monitors the status of the battery and recharges it if necessary. It also includes a plurality of external serial ports and a serial port multiplexer, so that a number of different external peripheral devices may be connected to it. A GPS receiver communicates with the pager, so that an automatic vehicle location system may be operated employing the pager. A satellite transceiver may be connected to the docking cradle, together with an external printer, bar code scanner, and/or alarm annunciator. The docking cradle is adapted to be powered by a vehicle battery, but turns off the GPS receiver after a predetermined period of time so as not to run down the vehicle battery if the pager is not in place in the docking cradle.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: February 24, 2004
    Assignee: 1229937 Ontario Limited
    Inventors: Cheng Cheong Gilbert Wong, Guy Griffith