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:
Dec. 09, 2008
Filed:
May. 12, 2004
Applicant:
Yutaka Tsuda, Yokohama, JP;
Inventor:
Yutaka Tsuda, Yokohama, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
A signal processing unit or an electronic camera according to the present invention performs signal processing on an output signal from an image pickup part in the order of horizontal shading correction and OB clamp. In the horizontal shading correction, shading correction is also pre-performed on a lateral OB signal serving as a standard of the OB clamp. The OB clamp is performed using the shading-corrected lateral OB signal as a standard, whereby a noise generated due to shading correction can be effectively reduced.