Patents by Inventor Masachika Harada

Masachika Harada 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: 3977021
    Abstract: A color video disc is disclosed in which at least two field synchronizing signals and color video signals are recorded on a track in a line sequence manner. In this case, the first color video signal component in each field is selected to be the same color.An apparatus for making the above color video disc is also described with which the synchronizing signals and color video signals derived from signal producing circuit are recorded on the color video disc with a cutter device and in which a 1/3 counter is provided. The 1/3 counter serves to supply therethrough an output signal from a synchronizing signal generator to a line sequence signal generator and the output signal is applied to the signal producing circuit.A reproducing apparatus for the color video disc is described in which the signal reproduced from the color video disc is applied to a signal processing system. This signal processing system does not include a pilot signal extracting circuit which is required in the prior art.
    Type: Grant
    Filed: January 21, 1974
    Date of Patent: August 24, 1976
    Assignee: Nippon Columbia Kabushiki Kaisha
    Inventors: Yoshikazu Kobayashi, Masachika Harada