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:
Oct. 01, 1996
Filed:
Mar. 26, 1990
Yoshio Takeuchi, Tokyo, JP;
Makoto Okui, Tokyo, JP;
Isao Kondo, Tokyo, JP;
Yasuaki Kanatsugu, Tokyo, JP;
Junji Kumada, Tokyo, JP;
Taiichiro Kurita, Tokyo, JP;
Kazuhiko Shibuya, Tokyo, JP;
Taiji Nishizawa, Tokyo, JP;
Yutaka Tanaka, Tokyo, JP;
Minoru Honda, Tokyo, JP;
Ryoichi Yajima, Tokyo, JP;
Shoichi Suzuki, Tokyo, JP;
Hisakazu Kato, Tokyo, JP;
Hiroyuki Hamazumi, Tokyo, JP;
Kazumasa Enami, Tokyo, JP;
Seiichi Gohshi, Tokyo, JP;
Yoshinori Izumi, Tokyo, JP;
Haruo Okuda, Tokyo, JP;
Ichiro Yuyama, Tokyo, JP;
Sumio Yano, Tokyo, JP;
Makoto Tadenuma, Tokyo, JP;
Nippon Hoso Kyokai, Tokyo, JP;
Abstract
High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modulate at least a first sub-carrier signal. The first sub-carrier is frequency interleaved onto the standard broadcast signal. Vertical high resolution components are time compressed and time division multiplexed onto top and bottom portions of the standard broadcast signal. The modified broadcast signal can be decoded by a standard receiver to display a standard resolution video image, while receivers designed to decode the modified signal can time division demultiplex the vertical high resolution components and demodulate the horizontal high resolution components, combine these components with the standard components, and generate a high definition video image.