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. 20, 1992
Filed:
Sep. 21, 1990
Applicant:
Inventors:
Joel Hamon, Lipsheim, FR;
Albert Dorner, Strasbourg, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358176 ; 341139 ;
Abstract
Disclosed is an apparatus for the reception of video signals with a variable gain amplifier to hold the video signal between pre-determined limits. To control the gain of the amplifier, there is provision for a circuit that keeps the amplitude of the line synchronization pulse substantially constant. This circuit has, for example, an analog/digital converter with an output, one bit of which represents the sign of the difference between the line synchronization pulse and its prescribed value.