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:
Feb. 19, 1991
Filed:
Aug. 25, 1988
Yacov Pshtissky, New York, NY (US);
Shiyang Gao, Uniondale, NY (US);
Other;
Abstract
Apparatus for encoding identification information onto video signals provided by a plurality of video signal sources (cameras) comprises a switching arrangement for supplying, in sequence, a plurality of independent video signals, each from one of the video sources. An A/D converter converts signal components associated with single field intervals to digital representations and the digital representations are stored in digital memory banks. The memory banks can be divided into two separate halves, each capable of storing a single field of video signals. The memory banks are enabled by a head switching (frame rate) signal from an associated VCR so as to alternately store a single field of video in one half while reading out twice in succession from the other half video signals stored during a preceding frame interval. An encoder adds identification information to the video signals which are read out so as to distinguish those signals from the signals provided from other video sources.