Patents by Inventor Takashi Kawade

Takashi Kawade 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).

  • Facsimile signal superposing system
    Patent number: 4255766
    Abstract: A facsimile signal superposing system for an analog type modulated facsimile signal has been found. The present superposing system has a digital memory storing the pattern to be superposed, and the insertion circuit which has a first input terminal for receiving the original facsimile pattern, a second input terminal for receiving the output of said digital memory, and an output terminal providing the sum of the first and the second input terminal signals. The cells of the digital memory are read one after another substantially synchronized with the original picture signal, thus, a superposed facsimile signal is obtained at said output terminal. The additional pattern to be superposed is, for instance, the date of the facsimile transmission.
    Type: Grant
    Filed: July 10, 1979
    Date of Patent: March 10, 1981
    Assignee: Nippon Telegrpah and Telephone Public Corporation
    Inventors: Hideo Matsuda, Kiyohiro Yuki, Takashi Kawade, Takaaki Adachi, Kenichi Hanabe