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:
Oct. 13, 1992
Filed:
Jan. 31, 1991
Applicant:
Inventor:
Jerel D Robison, Mountain View, CA (US);
Assignee:
LSI Logic Corp., Milpitas, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358149 ; 358158 ; 358183 ; 358150 ; 358 22 ;
Abstract
A genlock frequency generation system synchronizes a dependent, or controllable, video source to an independent video source, with the capability of reverting to some predetermined default conditions in the event that no coherent independent video signal is found. The genlock frequency generation system is capable of placing a dependent video image in an arbitrary rectangular area overlaying the independent video image. Method and apparatus are disclosed.