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:
Jun. 26, 2007
Filed:
Sep. 10, 2002
Yukio Okamura, Nagano, JP;
Yukio Okamura, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A white reference image is inputted to an image sensor with a light source lit up, and white reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the white reference image (steps Sand S). After the input of the white reference image, the light source is extinguished (point e in FIG.), a black reference image is inputted to the image sensor (step S), and black reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the black reference image (step S). After the light source is lit up (point f in FIG.), the optical image of a subject is inputted to the image sensor, and image data outputted to shading corrections with the white reference data and the black reference data are outputted (step S)