Patents by Inventor Tai Y. Zhang

Tai Y. Zhang 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).

  • Video compression using an iterative correction data coding method and systems
    Patent number: 5812195
    Abstract: An adaptive system and method for data storage and communication which is primarily used for the storage and transmission of large volumes of data, especially video data, over band-limited communication channels. The video coder of the system uses a prediction video signal which is subtracted from the input image to define a processing region in which image blocks of predetermined dimensions have large prediction error. The prediction image is successively improved by iteratively processing large error image blocks until the error is reduced below a predetermined threshold. At different processing iterations and image blocks, different compression techniques can be used to improve the overall system efficiency.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: September 22, 1998
    Assignee: Envistech, Inc.
    Inventor: Tai Y. Zhang
  • Video compression using an iterative error data coding method
    Patent number: 5610657
    Abstract: An adaptive system and method for data storage and communication which is primarily used for the storage and transmission of large volumes of data, especially video data, over band-limited communication channels. The video coder of the system uses a prediction video signal which is subtracted from the input image to define a processing region in which image blocks of predetermined dimensions have large prediction error. The prediction image is successively improved by iteratively processing large error image blocks until the error is reduced below a predetermined threshold. At different processing iterations and image blocks, different compression techniques can be used to improve the overall system efficiency.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: March 11, 1997
    Assignee: Envistech Inc.
    Inventor: Tai Y. Zhang