Patents by Inventor Raymond M.L. Li

Raymond M.L. Li 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).

  • Universal CD ROM interface using single interface connection
    Patent number: 5644790
    Abstract: The present invention relates to a universal peripheral interface comprised of control logic circuits for a plurality of peripherals carrying different signals on different pins of respective peripheral connectors, a single interface connector for mating with any of the peripheral connectors, a first multiplexer for interfacing any of the control logic circuits with the single interface connector and for switching particular lines of each of the control logic circuits carrying particular signals to particular pins of the single connector, and apparatus for controlling the multiplexer to map the lines to the particular pins of the single connector.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: July 1, 1997
    Assignee: ATI Technologies, Inc.
    Inventors: Raymond M.L. Li, Henry Quan