Patents by Inventor Chojuro Yamamitsu

Chojuro Yamamitsu 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: 3969755
    Abstract: An equipment for recording and reproducing color television signals or VTR (video tape recorder) is combined with a color television receiver as a single unit in such a way that some of their circuits are used in common with both the VTR and receiver, whereupon the circuit design as well as operation may be greatly simplified. The VTR and receiver are operatively coupled to each other through a switch for selecting a recording or reproducing mode. In recording mode, the video signal, which is received and detected by the receiver, passes through the mode selction switch to the luminance signal processing circuit and the carrier chrominance signal processing circuit in the receiver. The separated luminance and chrominance signals are applied to the input terminal of the VTR so that they may be recorded while one is watching the picture on a picture tube.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: July 13, 1976
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ichiro Arimura, Hiroshi Taniguchi, Chojuro Yamamitsu