Patents by Inventor Wei-Lien Hus

Wei-Lien Hus 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).

  • Dual-block inverse discrete cosine transform method
    Patent number: 6832232
    Abstract: A system and method for carrying out a two-dimensional forward and/or inverse discrete cosine transform is disclosed herein. In one embodiment, the method includes, but is not necessarily limited to: (1) receiving multiple data blocks; (2) grouping together one respective element from each of the multiple data blocks to provide full data vectors for single-instruction-multiple-data (SIMD) floating point instructions; and (3) operating on the full data vectors with SIMD instructions to carry out the two dimensional transform on the multiple data blocks. Preferably the two dimensional transform is carried out by performing a linear transform on each row of the grouped elements, and then performing a linear transform on each column of the grouped elements. The method may further include isolating and arranging the two dimensional transform coefficients to form transform coefficient blocks that correspond to the originally received multiple data blocks.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: December 14, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wei-Lien Hus, Yi Liu, Frank J. Gorishek
  • Dual-block discrete consine transform method
    Patent number: 6742010
    Abstract: A system and method for carrying out a two-dimensional forward and/or inverse discrete cosine transform is disclosed herein. In one embodiment, the method comprises: (1) receiving multiple data blocks; (2) grouping together one respective element from each of the multiple data blocks to provide full data vectors for single-instruction-multiple-data (SIMD) floating point instructions; and (3) operating on the full data vectors with SIMD instructions to carry out the two dimensional transform on the multiple data blocks. Preferably the two dimensional transform is carried out by performing a linear transform on each row of the grouped elements, and then performing a linear transform on each column of the grouped elements. The method may further include isolating and arranging the two dimensional transform coefficients to form transform coefficient blocks that correspond to the originally received multiple data blocks. The multiple data blocks may consist of exactly two data blocks.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: May 25, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wei-Lien Hus, Frank J. Gorishek