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:
Nov. 28, 1989
Filed:
Aug. 12, 1988
Applicant:
Inventors:
Yukihiro Kawada, Tokyo, JP;
Yoshiaki Nakayama, Tokyo, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
356402 ;
Abstract
An automatic white balance adjusting method in which color difference signals (E.sub.R -E.sub.Y) and (E.sub.B -E.sub.Y) obtained by photographing an object are respectively integrated over the entire screen and the gains of red and blue signals are respectively controlled so that the resultant integration average values can be respectively indentical with predetermined reference levels. In the method, when the respective color difference signals are integrated, only the weak color difference signals are selectively integrated. Also, there are set predetermined limits respectively to the gains of the red and blue signals.