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:
Dec. 30, 1986
Filed:
Nov. 30, 1984
Applicant:
Inventors:
Steven A Steckler, Clark, NJ (US);
Alvin R Balaban, Lebanon, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 25 ; 358 13 ; 358 19 ;
Abstract
A phase detector included in a digital television receiver develops first and second phase error signals based on samples of the color reference burst signal taken from one and two horizontal lines respectively. The first phase error signal is used to attain coarse synchronization between a sampling clock signal and the burst signal. The second phase error signal is used to enhance synchronization accuracy after coarse synchronization has been attained.