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. 25, 2014

Filed:

Jun. 03, 2011
Applicants:

Mari Ohbuchi, Yokohama, JP;

Hirotomo Sai, Yokohama, JP;

Tsutomu Usui, Yokohama, JP;

Shinichiro Hirooka, Fujisawa, JP;

Inventors:

Mari Ohbuchi, Yokohama, JP;

Hirotomo Sai, Yokohama, JP;

Tsutomu Usui, Yokohama, JP;

Shinichiro Hirooka, Fujisawa, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/40 (2006.01); H04N 5/235 (2006.01); H04N 5/228 (2006.01); H04N 9/73 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image signal processing system according to the present invention has a function to perform image quality control in photographing a subject having a large difference in brightness in the surrounding environment so that the entire photographed image, in particular a subject which a user desires to view, has an adequate brightness and an adequate gradation. Specifically, this image signal processing system comprises: a video input unit, a video signal processing unit for performing signal processing on a signal output from the video input unit, and generating a video signal; an input-output characteristic control unit for controlling a characteristic of the video signal which the video signal processing unit generates; and a subject recognition unit for performing image processing on the video signal which the video signal processing unit generates, and recognizing and detecting subject information.


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