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:
Sep. 29, 1992
Filed:
May. 30, 1990
Yasuaki Kanatsugu, Tokyo, JP;
Taiichiro Kurita, Tokyo, JP;
Taiji Nishizawa, Tokyo, JP;
Yutaka Tanaka, Tokyo, JP;
Ryoichi Yajima, Tokyo, JP;
Shoichi Suzuki, Tokyo, JP;
Hisakazu Kato, Tokyo, JP;
Kazumasa Enami, Tokyo, JP;
Haruo Okuda, Tokyo, JP;
Satoru Koizumi, Tokyo, JP;
Hideki Suganami, Tokyo, JP;
Toshiyuki Takegahara, Tokyo, JP;
Kaoru Watanabe, Tokyo, JP;
Nippon Hoso Kyokai, Tokyo, JP;
Abstract
A signal transmission system for high definition television that can handle a second television signal which is superior in quality to a first television signal such as an NTSC (National Television System Committee) television signal. The transmitting end of the system transmits a first television signal including a video signal, audio signals, etc., through a main transmission line, as well as a third television signal including a high definition components obtained as the difference between the second and the first television signal through an auxiliary transmission line. The receiving end of the system receives and synthesizes the first television signal transmitted through the main transmission line and the third television signal transmitted through the auxiliary transmission line to produce the second television signal.