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. 13, 2011
Filed:
Mar. 06, 2008
Applicants:
Weijie Yun, San Jose, CA (US);
Samuel Sheng, Los Gatos, CA (US);
Inventors:
Weijie Yun, San Jose, CA (US);
Samuel Sheng, Los Gatos, CA (US);
Assignee:
Telegent Systems, Inc., Grand Cayman, KY;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/44 (2011.01);
U.S. Cl.
CPC ...
Abstract
An analog video receiver implemented in an integrated circuit device. The analog video receiver includes a mixing circuit to mix an analog video signal with a sinusoid to generate a frequency-shifted analog video signal, and an offset cancellation circuit to obtain a sample of the frequency-shifted analog video signal during a first time interval and, based on the sample, generate an offset cancellation signal that, when summed with the frequency-shifted analog video signal, reduces a substantially time-invariant offset in the frequency-shifted analog video signal.