Patents by Inventor Xu Gang Zhao

Xu Gang Zhao 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).

  • Publication number: 20120002719
    Abstract: A video encoder includes a non-syntax processing engine that processes a video input signal into an intermediate signal in accordance with a first video compression standard. A syntax section transforms and quantizes the intermediate signal in accordance with a second video compression standard to produce a processed video signal, wherein the second video compression standard is different from the first video compression standard.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: VIXS SYSTEMS, INC.
    Inventors: XU GANG ZHAO, LIMIN WANG
  • Publication number: 20100316129
    Abstract: A scaled motion search section can be used in a video processing device that processes a video input signal that includes a plurality of pictures. The scaled motion search section includes a downscaling module that downscales the plurality of pictures to generate a plurality of downscaled pictures, wherein the downscaling module includes a horizontal downscaling filter and a vertical downscaling filter, and wherein the vertical downscaling filter generates downscaled pixels for a macroblock pair using only pixels from the macroblock pair. A reduced-scale motion search module generates a plurality of motion vector candidates at a downscaled resolution, based on the plurality of downscaled pictures. A full-scale motion search module generates a plurality of motion search motion vectors at a full resolution, based on a plurality of reference pictures and further based on the plurality of motion vector candidates.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 16, 2010
    Applicant: VIXS SYSTEMS, INC.
    Inventors: XU GANG ZHAO, XIN (CINDY) GUO, ERIC YOUNG
  • Publication number: 20090282444
    Abstract: A system and a method to manage the presentation of video to one or more display clients are disclosed herein. The video can be presented in a fast forward presentation mode, a fast reverse presentation mode, and a reverse presentation mode. Additionally, the presentation of the video can be paused and then resumed, or shifted by a certain time or number of frames. In at least one embodiment, a frame index is utilized when changing the presentation rate or the direction of the presentation. The frame index can be used to identify and/or locate certain frames of the video. Once located and/or identified, the order of the frames can be manipulated and/or a subset of the frames can be selected to generate different presentation modes of the video.
    Type: Application
    Filed: July 22, 2009
    Publication date: November 12, 2009
    Applicant: VIXS SYSTEMS, INC.
    Inventors: Indra Laksono, Hai Hua, SuiWu Dong, Xu Gang Zhao, Haibo Liu, Song Jin
  • Publication number: 20090161764
    Abstract: A run-level coding module can be used in a video encoder that generates a processed video signal from a video input signal. The run-level coding module includes a run-level coder that generates a first plurality of run-level pairs from a first stream of quantized data. A first ring buffer buffers a first number of the first plurality of run-level pairs. The processed video signal is generated based on the buffered first number of run-level pairs.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Inventors: Xu Gang Zhao, Xinghai Li, Zhong Yan (Jason) Wang, Ruijing (Ray) Dong, Jeffrey (Fu) Jin
  • Publication number: 20090147840
    Abstract: An encoding system includes a first signal interface for receiving a first video signal in a first format. A second signal interface receives a second video signal in a second format. A first encoding module generates a first processed video signal in a third format. A second encoding module generates a second processed video signal in a fourth format, wherein the second processed signal is generated contemporaneously with the first processed video signal and wherein the first format differs from the third format and the second format differs from the fourth format.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Inventors: Kuldip Sahdra, Indra Laksono, Lewis Leung, Eric Young, Edward Hong, Xu Gang Zhao, Paul Ducharme