The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1991
Filed:
Aug. 10, 1990
Koji Kaneko, Kamakura, JP;
Kazuyuki Saigusa, Kamakura, JP;
Shinya Yokodate, Kamakura, JP;
Hitoshi Fujimoto, Kamakura, JP;
Akira Teshima, Kamakura, JP;
Tatsuhiko Mizushima, Kamakura, JP;
Gary S Fletcher, Willard Rocklin, CA (US);
Janet Miller, Grass Valley City, CA (US);
Lawrence D Emmons, Grass Valley City, CA (US);
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
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.