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. 30, 1993
Filed:
Oct. 21, 1991
Applicant:
Inventors:
Akira Suga, Tokyo, JP;
Kazuyuki Matoba, Yokohama, JP;
Takashi Sasaki, Yokohama, JP;
Mayumi Yamamoto, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 44 ; 358 41 ; 358163 ;
Abstract
A solid state image pickup apparatus for obtaining a luminance signal from the average value of outputs of two or more pixels varying in spectral characteristic from line to line. It includes a circuit to correct the amplitude of a luminance signal in every other line such that the amplitude of the luminance signal in each line is constant in a uniform luminance face image pickup state. The circuit may automatically switch the amplitude of the luminance signal in accordance with a change in the color temperature.