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. 14, 1990
Filed:
Mar. 09, 1989
Applicant:
Inventors:
Masatoshi Yanagidaira, Tokyo, JP;
Tsutomu Kanai, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 86 ; 370-3 ; 455610 ;
Abstract
A video signal coordination system which enables selective transmission of video signals from a plurality of sources with simpler digital switching systems which require fewer cross points and thus reduce the cost of the overall system. For each of a plurality of video source groups, an associated digital switching system is provided, so that the overall number of switching systems is equal to the number of video source groups. Queuing problems are avoided by having some duplication of video sources across various ones of the video source groups.