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:
Sep. 15, 2009
Filed:
Apr. 26, 2004
Hiroyuki Nakata, Musashimurayama, JP;
Noriyasu Murata, Tachikawa, JP;
Hiroyuki Nakata, Musashimurayama, JP;
Noriyasu Murata, Tachikawa, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
In a camera having a gamma-correction circuit on an output signal processing path of a CCD, an incident light path leading to the CCD is kept opening in a state where nonlinear gamma-correction processing in the gamma-correction processing circuit is prohibited, first image data (CCD output data; DATA) are generated based on electric signal output from the CCD, incident light path leading to the CCD is kept closing, second image data (CCD output data; DATA) are generated based on electric signal output from the CCD and lastly, the second image data DATAare subtracted from the first image data DATA, thereby correcting to eliminate dark voltage component included in the first image data DATA