Patents by Inventor Ramaswamy Prabhakar

Ramaswamy Prabhakar 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).

  • Universal MPEG decoder with scalable picture size
    Patent number: 5832120
    Abstract: A decoder is disclosed for decoding MPEG video bitstreams encoded in any color space encoding format and outputting the decoded video bitstream to different sized windows. Both MPEG decompression and color space decoding and conversion are performed on the bitstreams within the same decoder. The disclosed decoder may be programmed to output the decoded video bitstream in any of three primary color space formats comprising YUV 4:2:0, YUV 4:2:2, and YUV 4:4:4. The decoder may also output the decoded bitstream to different sized windows using Discrete Cosine Transform (DCT) based image resizing.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: November 3, 1998
    Assignee: Cirrus Logic, Inc.
    Inventors: Ramaswamy Prabhakar, Tzoyao Chan, Jih-Hsien Soong