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. 06, 2012
Filed:
Sep. 28, 2009
Ryosuke Kasahara, Kanagawa, JP;
Tetsuya Sasaki, Kanagawa, JP;
Go Maruyama, Tokyo, JP;
Hiroyoshi Sekiguchi, Kanagawa, JP;
Masahiko Itoh, Tokyo, JP;
Xue LI, Kanagawa, JP;
Ryosuke Kasahara, Kanagawa, JP;
Tetsuya Sasaki, Kanagawa, JP;
Go Maruyama, Tokyo, JP;
Hiroyoshi Sekiguchi, Kanagawa, JP;
Masahiko Itoh, Tokyo, JP;
Xue Li, Kanagawa, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
An imaging device includes an imaging element that takes an image of a target object and output an image signal corresponding to the image; a storage unit that stores therein a zero-point adjustment reference value; a brightness detecting unit that detects a brightness of the target object; and a reference-value changing unit that changes the zero-point adjustment reference value when the brightness detected by the brightness detecting unit is equal to or lower than a threshold. A zero point in a level of the image signal output from the imaging element is adjusted by using the zero-point adjustment reference value stored in the storage unit.