Patents by Inventor Francisco Merlos Fernandez

Francisco Merlos Fernandez 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: 8644388
    Abstract: A method and a device for approximating a DC coefficient of a first block of pixels of a first frame are proposed. The method comprises: calculating a luminance DC average value based on DC coefficients of first frame's macro-blocks without an approximation error; and determining the DC coefficient of the first block based on the DC coefficient of a second block, wherein the second block is a part of a second frame, which is a reference frame of the first frame, the second block overlapping with a reference block of the first block and having the closest DC coefficient to the luminance DC average value.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: February 4, 2014
    Assignee: Sony Corporation
    Inventors: Francisco Merlos Fernandez, Klaus Zimmermann, Markus Veltman
  • Publication number: 20100158122
    Abstract: A method and a device for approximating a DC coefficient of a first block of pixels of a first frame are proposed. The method comprises: calculating a luminance DC average value based on DC coefficients of first frame's macro-blocks without an approximation error; and determining the DC coefficient of the first block based on the DC coefficient of a second block, wherein the second block is a part of a second frame, which is a reference frame of the first frame, the second block overlapping with a reference block of the first block and having the closest DC coefficient to the luminance DC average value.
    Type: Application
    Filed: October 21, 2009
    Publication date: June 24, 2010
    Applicant: Sony Corporation
    Inventors: Francisco Merlos FERNANDEZ, Klaus Zimmermann, Markus Veltman
  • Publication number: 20100118956
    Abstract: A method and a device for extracting a mean luminance value from a inter-coded frame is proposed, wherein the inter-coded frame is a part of a sequence of video frames, the method comprising: approximating DC coefficients for macro-blocks of the inter-coded frame based on DC coefficients of intra-coded macro-blocks surrounding reference blocks in a reference frame of the sequence, the reference blocks being pointed to by motion vectors of the macro-blocks of the inter-coded frame; and calculating the mean luminance value based on the approximated DC coefficients.
    Type: Application
    Filed: October 21, 2009
    Publication date: May 13, 2010
    Applicant: Sony Corporation
    Inventors: Francisco Merlos Fernandez, Klaus Zimmermann, Markus Veltman