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:
Oct. 29, 2019

Filed:

Oct. 26, 2018
Applicant:

Analog Devices Global Unlimited Company, Hamilton, BM;

Inventors:

Isaac Molina Hernandez, Valencia, ES;

Niall D. O'Connell, Clarina, IE;

Sean M. Mullins, Limerick, IE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/08 (2006.01); H04N 7/14 (2006.01); H04N 11/08 (2006.01); H04N 9/81 (2006.01); H04N 21/4363 (2011.01);
U.S. Cl.
CPC ...
H04N 7/0803 (2013.01); H04N 7/147 (2013.01); H04N 9/81 (2013.01); H04N 11/08 (2013.01); H04N 21/43632 (2013.01);
Abstract

Disclosed herein are systems and methods for performing DC offset correction of a video signal received over an AC-coupled video link. In one aspect, a transmitter is configured to compute, and provide to a receiver, metadata indicative of a statistical characteristic (e.g., an average or a sum of values) for a group of active pixels of a video signal acquired by a camera. The receiver is configured to compute an analogous statistical characteristic on the video signal received over an AC-coupled video link, and to perform DC offset correction by modifying one or more values of the received video signal based on a comparison of the statistical characteristic computed by the receiver and the one computed by the transmitter and indicated by the received metadata.


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