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:
May. 22, 2012
Filed:
Nov. 23, 2009
Seiichi Tamura, Yokohama, JP;
Seiichi Tamura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The image sensing device includes a semiconductor substrate; a light shielding layer that is arranged above the semiconductor substrate and shields an optical black region and a peripheral region from light; a first capacitance element that is arranged between the light shielding layer in the peripheral region and the semiconductor substrate and is used to temporarily hold signals output from effective pixels or optical black pixels; and a second capacitance element that is arranged between the light shielding layer in the optical black region and the semiconductor substrate so as to shield the photoelectric conversion units of the optical black pixels from light.