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.

Date of Patent:
Dec. 07, 1999

Filed:

Sep. 04, 1997
Applicant:
Inventor:

Guoxin Xie, Carlsbad, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
348525 ; 348500 ; 348545 ; 348547 ;
Abstract

An improved high-performance vertical sync separator which can reliably operate during high frequency and non-standard video signal conditions and that utilizes a device-independent methodology. The synch separator includes a signal separator circuit having an input port for receiving a composite signal. A measuring device connected to the input port measures a first and second characteristic of the composite signal. A processor receives and compares the first and second characteristics, and recovers a vertical sync signal from the composite signal.


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