Patents by Inventor Jia-Jyh Luo

Jia-Jyh Luo 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: 7236529
    Abstract: Methods and systems for transcoding a video sequence in a discrete cosine transform (DCT) domain, wherein a transcoder receives a video bit-stream including frames and each of the frames including blocks. The video bit-stream includes an intra-frame and an inter-frame that has been encoded by motion compensation based on the intra-frame or another inter-frame. A DCT-domain motion compensation module in the transcoder re-calculates first DCT coefficients for a target block in the inter-frame. For this re-calculation of the first DCT coefficients, the motion compensation module inputs second DCT coefficients of neighboring blocks in the inter-frame, and calculates partial DCT coefficients, using significant ones of the second DCT coefficients of the neighboring blocks.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: June 26, 2007
    Assignee: Industrial Technology Research Institute
    Inventors: Chia-Wen Lin, Hsu-Kai Tsai, Jia-Jyh Luo
  • Publication number: 20030081676
    Abstract: Methods and systems for transcoding a video sequence in a discrete cosine transform (DCT) domain, wherein a transcoder receives a video bit-stream including frames and each of the frames including blocks. The video bit-stream includes an intra-frame and an inter-frame that has been encoded by motion compensation based on the intra-frame or another inter-frame. A DCT-domain motion compensation module in the transcoder re-calculates first DCT coefficients for a target block in the inter-frame. For this re-calculation of the first DCT coefficients, the motion compensation module inputs second DCT coefficients of neighboring blocks in the inter-frame, and calculates partial DCT coefficients, using significant ones of the second DCT coefficients of the neighboring blocks.
    Type: Application
    Filed: May 6, 2002
    Publication date: May 1, 2003
    Applicant: Industrial Technology Research Institute
    Inventors: Chia-Wen Lin, Hsu-Kai Tsai, Jia-Jyh Luo