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:
Apr. 21, 2009
Filed:
Nov. 24, 2004
Jun Funakoshi, Kawasaki, JP;
Katsuyoshi Yamamoto, Kawasaki, JP;
Asao Kokubo, Kawasaki, JP;
Toshitaka Mizuguchi, Kawasaki, JP;
Tsuyoshi Higuchi, Kawasaki, JP;
Jun Funakoshi, Kawasaki, JP;
Katsuyoshi Yamamoto, Kawasaki, JP;
Asao Kokubo, Kawasaki, JP;
Toshitaka Mizuguchi, Kawasaki, JP;
Tsuyoshi Higuchi, Kawasaki, JP;
Fujitsu Microelectronics Limited, Tokyo, JP;
Abstract
An imaging device provided with a read circuit in which a light-shielding region is formed in a part of an image region where a plurality of optical/electrical conversion devices is two-dimensionally arrayed in the row and column directions and which converts a optically detected signal outputted from each of the optical/electrical conversion devices for each of the column into a digital signal, comprises a storage device for storing the outputted digital signal outputted in relation with the optical/electrical conversion device in the light-shielding region and a difference calculation device for calculating a difference between the outputted digital signal in relation with the optical/electrical conversion device in a light-receiving region except the light-shielding region and a value stored in the storage device.