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.:

US 8947599 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 03, 2015

Filed:

May. 15, 2007
Applicants:

Samuel A. Figueroa, Fremont, CA (US);

Jay D. Zipnick, Morgan Hill, CA (US);

Inventors:

Samuel A. Figueroa, Fremont, CA (US);

Jay D. Zipnick, Morgan Hill, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/64 (2006.01); H04N 9/67 (2006.01); H04N 9/68 (2006.01); H04N 5/14 (2006.01);
U.S. Cl.
CPC ...
H04N 9/67 (2013.01); H04N 9/68 (2013.01); H04N 5/14 (2013.01); H04N 9/643 (2013.01);
Abstract

A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel.


Find Patent Forward Citations

Figueroa, Samuel. (2015). Method and apparatus for adjusting chroma and luma for a video signal (U.S. Patent No. 8947599). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8947599

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