Patents by Inventor C. C. Lee

C. C. Lee 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).

  • Method and system for improved digital video data processing using 4-point discrete cosine transforms
    Patent number: 6215909
    Abstract: Methods and systems for data compression and decompression are disclosed. Specifically, the method for data compression of the present invention receives four inputs representing pixel information of an image and performs a combination of a 4-point discrete cosine transform (DCT) and a weighting function to obtain four outputs representing digital representations of an image. The method for data decompression receives four inputs representing digital representations of an image and performs a combination of an inverse weighting function and a 4-point inverse discrete cosine transform (IDCT) to obtain pixel components of an image. The methods and systems of the present invention may be used in optimizing digital video encoders and decoders.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: April 10, 2001
    Assignees: Sony Electronics, Inc., Sony Corporation
    Inventors: Ching-Fang Chang, C. C. Lee, Naofumi Yanagihara
  • Portable stereo receiver housing
    Patent number: D276158
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: October 30, 1984
    Assignee: Atlas Electronics Manufacturing Limited
    Inventors: C. C. Lee, D. H. Louie, Y. M. Tam