Patents by Inventor Houng-Yean Liu

Houng-Yean Liu 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).

  • Game cartridge for a television game console
    Patent number: 5362068
    Abstract: A game cartridge includes a main cartridge which has a primary graphics memory unit, a first edge-board contact that is connected removably to a television game console and that enables the television game console to address and receive data from different storage locations in the primary graphics memory unit, and an edge-board connector that is connected electrically to the primary graphics memory unit and to the first edge-board contact. An auxiliary card has a secondary graphics memory unit and a second edge-board contact that is connected removably to the edge-board connector. A logic select circuit detects an address input from the television game console corresponding to a predetermined one of the storage locations in the primary graphics memory unit.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: November 8, 1994
    Inventor: Houng-Yean Liu