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. 09, 2005
Filed:
Mar. 13, 2000
Applicants:
Masakazu Mimura, Osaka, JP;
Nobuo Iwai, Osaka, JP;
Inventors:
Masakazu Mimura, Osaka, JP;
Nobuo Iwai, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N009/73 ; H04N009/09 ;
U.S. Cl.
CPC ...
Abstract
The white balance of a television camera is not lost and kept properly even if the diaphragm is opened to the utmost limit at a dark place. A signal F representing the diaphragm value of the taking lens is inputted from an iris partinto a microcomputer. The level adjusting values of the R, G, and B signals are set in the microcomputeraccording to the diaphragm signal F and sent to a white balance correcting circuit. The correcting circuitadjusts the levels of the R, G, and B signals to the same value according to the level adjusting values.