Patents by Inventor Katsuo Mouri

Katsuo Mouri 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: 4916553
    Abstract: In a rotary magnetic head helical scan type video tape recorder using a segment recording system, a video signal of one vertical scanning period is divided into n video signal blocks, where n is an integer equal to or larger than 2, and a redundant period having a selected length is inserted into the video signal blocks in a recording mode. Each of the video signal blocks has a number of horizontal scanning lines equal or smaller than N/n, where N is the number of the horizontal scanning lines in a field of the video signal. In a reproducing mode, a time axis error of reproduced series of the video signal blocks is corrected at least during the redunant periods. Then, the corrected blocks are converted into the original video signal.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: April 10, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Yoshioka, Takashi Furuhata, Hitoaki Owashi, Katsuo Mouri