Patents by Inventor Phani U Kumar

Phani U Kumar 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).

  • DCT-based technique with rhombus scanning for image compression
    Patent number: 8311354
    Abstract: A DCT-based technique with rhombus scanning for image compression. A flipped-kernel discrete cosine transform is applied to an eight by eight pixel sub-block of the sixteen by sixteen pixel block. A visually insignificant information is removed from the eight by eight pixel sub-block. A quantization method is used to remove the visually insignificant information. A quantized discrete cosine transform coefficient is scanned of the sixteen by sixteen pixel block. The quantized discrete cosine transform coefficient is scanned according to a rhomboid pattern. A portion of a digital image may be divided into a sixteen by sixteen pixel block.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 13, 2012
    Assignee: LSI Corporation
    Inventors: Prabhakar Ballapalle, Phani U Kumar