Patents by Inventor Akira Teshima

Akira Teshima 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).

  • Still image video telephone transmission system
    Patent number: 5042061
    Abstract: A still picture video telephone transmission system for transmitting and receiving, via a telephone line, a still picture taken by a camera; a picture signal is transmitted and received by a transmitting circuit and a receiving circuit, to which improvements are made so as to display a still picture clearly without distortion. For this purpose, the transmitting circuit sends picture element signals together with image correcting signals such as a picture element displacement detecting signal, a phase inversion detecting signal, and settling data. The receiving circuit detects the image correcting signals in the picture element signal, and makes the necessary corrections so as to enable the still picture to be displayed in good shape.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: August 20, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koji Kaneko, Kazuyuki Saigusa, Shinya Yokodate, Hitoshi Fujimoto, Akira Teshima, Tatsuhiko Mizushima, Gary S. Fletcher, Janet Miller, Lawrence D. Emmons