Patents Examined by Jose I. Couso
  • Image signal coding system
    Patent number: 6188794
    Abstract: An adaptive blocking coding system selects an effective blocking of an input image signal to be encoded in accordance with the correlation between fields, even if motion is detected between the fields. The blocking patterns include an individual field blocking, a non-interlace blocking, a split blocking and an inverted split blocking. Further, the coding system searches for motion from both odd and even fields of a frame for producing a motion compensated prediction signal in order to provide high-efficient coding.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: February 13, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirofumi Nishikawa, Yoshihisa Yamada, Tokumichi Murakami, Kohtaro Asai