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:
May. 04, 1993
Filed:
Dec. 07, 1989
Charles W Rhodes, Atlanta, GA (US);
Scientific Atlanta, Inc., Atlanta, GA (US);
Abstract
The present invention is directed to improving immunity to channel distortions of multiplexed analog component television signals by independently transmitting a clock recovery burst and a DC restoration reference level during the horizontal blanking interval of a video line. More particularly, the clock recovery burst and the DC restoration reference level are transmitted on independent lines. The integrity of the television receiver's system is not compromised if the clock recovery burst is not transmitted on every line. Accordingly, the problems inherent in the prior art are avoided by independently transmitting the clock recovery burst and the DC restoration reference level on separate lines during a portion of the horizontal blanking interval of the respective lines. The clock recovery burst and the DC restoration reference level could be transmitted on alternate lines or the clock recovery burst could be sent every Nth line with the DC restoration reference level transmitted on lines therebetween.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile