Patents by Inventor Sergey I. Kovalev

Sergey I. Kovalev 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: 6339616
    Abstract: A method and apparatus for pixel-by-pixel motion and/or still video data compression and decompression. Each pixel may be encoded as static, new, or direcionally estimated. Directionally estimated pixels are encoded with a value corresponding to a direction in a reduced set of substantially unique directions, wherein each direction may correspond to one or a combination of pixels. Directionally estimated pixels are further encoded using an adaptive variable length code (VLC), while static pixels and new pixels are encoded using run-lenth (RL) coding and delta coding techniques, respectively. Performance parameters, such as compression ratio, quality, etc., may be monitored to dynamically and adaptively update compression thresholds. Pixel processing may be performed in a plurality of directions to improve performance.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: January 15, 2002
    Assignees: Alaris, Inc., G. T. Technology, Inc.
    Inventor: Sergey I. Kovalev
  • Patent number: 5818535
    Abstract: A method and apparatus for compression and decompression of motion video data. According to one embodiment, a method for compression of a first frame of motion video is provided, wherein the first frame is compared to a base frame. Based on the comparison, an altered base frame is created that contains a set of one or more regions that are based on a set of one or more regions in the first frame and a set of one or more regions from the base frame. To encode the first frame, the altered base frame is compared to the first frame to derive a motion compensation vector based on a region in the altered base frame.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: October 6, 1998
    Assignees: Alaris, Inc., G.T. Technology, Inc.
    Inventors: Ilya L. Asnis, Victor D. Kolesnik, Sergey I. Kovalev, Kirill B. Shabunov