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:
Jan. 21, 2014
Filed:
Mar. 12, 2012
Applicants:
Raymond William Hall, Riverside, CA (US);
Donald E Parreco, Covina, CA (US);
Inventors:
Raymond William Hall, Riverside, CA (US);
Donald E Parreco, Covina, CA (US);
Assignee:
RGB Systems, Inc., Anaheim, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/72 (2006.01); H04N 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A feedback circuit for restoration of DC in electrical signals is presented. A sample pulse representing a DC portion of an electrical signal is generated. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the electrical signal during this DC portion. The offset voltage feeds back through a summing node to the electrical signal thereby restoring the video signal to the desired DC voltage level with respect to ground.