Patents by Inventor Youichi Yamagishi

Youichi Yamagishi 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).

  • Reproduction apparatus reproducing video, but not audio, from a recording medium to provide a multi-picture image
    Patent number: 5561650
    Abstract: A reproduction apparatus conducts reproduction of data from a recording medium on which picture information and audio information related to the picture information are recorded for each block in a mixed state. The reproduction apparatus is designed to display only pictures on a multi-picture screen by reproducing information recorded in the individual blocks except for that information recorded in blocks in which the sound information is recorded when the information recorded in the individual blocks is to be reproduced for the multi-picture display.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: October 1, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventor: Youichi Yamagishi
  • Video signal processing devices
    Patent number: 4792853
    Abstract: A video signal processing device for separating horizontal and vertical synchronizing signal components from an applied video signal, for forming a field discrimination signal upon discriminating the field represented by each field video signal on the basis of the separated horizontal and vertical synchronizing signal components, and for detecting abnormality or deviation from a predetermined variation in the field discrimination signal due to a defect of the synchronizing signal components or a different type or format of a video signal.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: December 20, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Youichi Yamagishi, Makoto Takayama