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:
Mar. 29, 2011

Filed:

Apr. 28, 2006
Applicants:

Hiroshi Aoki, Yokohama, JP;

Ryo Hasegawa, Yokohama, JP;

Naoya Oka, Yokohama, JP;

Rikiya Asaoka, Yokohama, JP;

Daisuke Honda, Yokohama, JP;

Inventors:

Hiroshi Aoki, Yokohama, JP;

Ryo Hasegawa, Yokohama, JP;

Naoya Oka, Yokohama, JP;

Rikiya Asaoka, Yokohama, JP;

Daisuke Honda, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G06K 9/00 (2006.01); H04N 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is an image display technique for displaying a high-quality image by an image signal of appropriate color saturation. To this end, in the invention, color histogram information is detected from a color difference signal and average brightness information or brightness histogram information from a brightness signal. Based on the detected color histogram information and average brightness information or brightness histogram information, the demodulation axis of a color difference signal is adjusted, thereby controlling the color saturation (chroma) of an image. This enables display of an image having color intensity suited to the brightness and chroma of an image signal.


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