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:
Aug. 23, 2011
Filed:
Nov. 21, 2006
Applicants:
Katsuhiro Kanauchu, Yonezawa, JP;
Shuichi Seki, Yonezawa, JP;
Inventors:
Katsuhiro Kanauchu, Yonezawa, JP;
Shuichi Seki, Yonezawa, JP;
Assignee:
Tohoku Pioneer Corporation, Yamagata, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/57 (2006.01); H04N 3/12 (2006.01); G01F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An inputted picture signal is stored in an image memory into which a picture signal for at least one frame period can be written, while rewriting the memory. At a plurality of timings within one frame period, an average brightness calculation unit calculates an average brightness from the picture signal written into the image memory, and a brightness control unit performs brightness control of the picture signal read from the image memory based on the calculated average brightness.