Patents by Inventor Jian-Wei Fan

Jian-Wei Fan 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 of digital image data compression and decompression
    Patent number: 7146054
    Abstract: A method for compressing and decompression digital image data. When compressing, the method begins by choosing a reference row. The relative data between the reference row and the current row is compared to search for the differential data set. The largest matching data set of the differential data set is searched starting from the starting position of the last differential data set. According to the matching conditions, the data type of the to-be-compressed data is first verified, then the to-be-compressed data set type and its relative referencing value are verified. Finally, the relative coding process is started. This process has a higher compression ratio and decompression speed, and increases the compression speed dramatically.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: December 5, 2006
    Assignee: Primax Electronics Ltd.
    Inventors: Xing-Ping Zhou, Jian-Wei Fan
  • Method of digital image data compression and decompression
    Publication number: 20040258316
    Abstract: A method for compressing and decompression digital image data. When compressing, the method begins by choosing a reference row. The relative data between the reference row and the current row is compared to search for the differential data set. The largest matching data set of the differential data set is searched starting from the starting position of the last differential data set. According to the matching conditions, the data type of the to-be-compressed data is first verified, then the to-be-compressed data set type and its relative referencing value are verified. Finally, the relative coding process is started. This process has a higher compression ratio and decompression speed, and increases the compression speed dramatically.
    Type: Application
    Filed: June 18, 2003
    Publication date: December 23, 2004
    Inventors: Xing-Ping Zhou, Jian-Wei Fan