Patents by Inventor Tetsushi Satoh

Tetsushi Satoh 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: 3988776
    Abstract: A color television camera has a camera tube for receiving incident light from an image pickup object. It produces output signals representing an image of the object. The signal level varies in accordance with the incident light quantity assuming a constant target voltage. The system disposes of excessive incident light quantity. A control circuit lowers the voltage impressed on the target of the camera tube and controls the output signal level of the camera tube at a constant value, when the incident light quantity to the camera tube becomes excessive and exceeds a first predetermined light quantity. An indicator indicates when the incident light quantity to the camera tube becomes excessive, exceeding a second predetermined light quantity which is greater than the first predetermined light quantity. The resulting pickup picture deteriorates when the light exceeds a practical allowable limit despite the operation of the control circuit.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: October 26, 1976
    Assignee: Victor Company of Japan, Limited
    Inventors: Takashi Shinozaki, Seigo Kokufukata, Shintaro Nakagaki, Tetsushi Satoh