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:
Nov. 04, 1986
Filed:
Mar. 21, 1984
Applicant:
Inventors:
Stan Bart, Hoffman Estates, IL (US);
Gopal K Srivastava, Buffalo Grove, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358153 ; 358155 ;
Abstract
Composite sync is separated from video despite noisy, weak, or nonstandard signal conditions. Sync is separated from the composite video signal by comparing the video signal to a D.C. reference voltage which is generated depending upon the particular characteristics of the received video signal. Outputted sync signals during vertical sync and nonstandard periods are conditioned for proper phasing in other receiver circuits such as the Horizontal A.P.C.