Patents by Inventor Tienwei Hsieh

Tienwei Hsieh 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).

  • Pattern-Search Based Method And Apparatus For Context-Adaptive Variable Length Coding/Decoding
    Publication number: 20070274392
    Abstract: A pattern-search based method and apparatus for context-adaptive variable length coding/decoding (CAVLC/CAVLD) is provided. The method analyzes the correlation between bit patterns and blocks. Before CAVLD, a step of bit-stream pattern search is conducted. If a pattern is matched in a look-up table, this invention skips the CAVLD procedure and reconstructs a block directly. Before CAVLC, a step of zig-zag ordered coefficients search is conducted. If a sequence of zig-zag ordered coefficients is matched in a look-up table, a corresponding coded bit-stream can be obtained directly. Compared with the standard CAVLD procedures, this invention improves about 10% performance in memory access speed.
    Type: Application
    Filed: July 21, 2006
    Publication date: November 29, 2007
    Inventors: Shau-Yin Tseng, Tienwei Hsieh