Patents by Inventor Su Wang

Su Wang 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).

  • Patent number: 6184939
    Abstract: Apparatus for processing video signals and which can be connected with a personal computer for further processing. An analog to digital converter samples and converts input NTSC composite video signal into digital signal for subsequent processing. A phase-locked loop provides sampling clock signal to the ADC, and also ensures accurate sample phase. Based on a theory that human eye is more sensitive to the luminance component of video signals, a double sampling circuit is included which double samples the luminance component of a video signal to improve the overall resolution of an image.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: February 6, 2001
    Assignee: Umax Data Systems Inc.
    Inventors: Shin-Su Wang, Wen-Chin Cheng, Shih-Hsun Lin
  • Patent number: 5558875
    Abstract: A process of preparation of a collagenous prosthesis for removing cell membrane proteins from a biological collagenous tissue and preserving elasticity of the collagenous prosthesis comprises the following steps: (a) soaking the tissue in an organic detergent for a sufficient time to disrupt the cell membrane and to solubilize the cellular membrane proteins of the collagenous tissue; (b) extracting and removing the cellular membrane proteins from the collagenous tissue by mechanical washing to obtain the collagenous prosthesis; (c) preserving the collagenous prosthesis in alcohol.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: September 24, 1996
    Inventor: Su Wang
  • Patent number: D451726
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: December 11, 2001
    Assignee: Happy Angel Corporation
    Inventor: Chen-Hsin Su Wang