Patents by Inventor Eric Chi-Wang Chai

Eric Chi-Wang Chai 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).

  • Decoder for compressed video signals
    Patent number: 5870497
    Abstract: A decoder for compressed video signals comprises a central processing unit (CPU), a dynamic random access memory (DRAM) controller, a variable length code (VLC) decoder, a pixel filter and a video output unit. The microcoded CPU performs dequantization and inverse cosine transform using a pipelined data path, which includes both general purpose and special purpose hardware. In one embodiment, the VLC decoder is implemented as a table-driven state machine where the table contains both control information and decoded values.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: February 9, 1999
    Assignee: C-Cube Microsystems
    Inventors: David E. Galbi, Stephen C. Purcell, Eric Chi-Wang Chai