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. 12, 2019
Filed:
Dec. 05, 2017
Applicants:
Keita Inoue, Kanagawa, JP;
Masamoto Nakazawa, Kanagawa, JP;
Hiroki Shirado, Kanagawa, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); H01L 27/146 (2006.01); H04N 1/12 (2006.01); H04N 1/19 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14643 (2013.01); H04N 1/126 (2013.01); H04N 1/1906 (2013.01); H04N 1/40056 (2013.01);
Abstract
A photoelectric conversion device includes a generation circuit and a controller. The generation circuit generates an image signal according to an intensity of light being input. The controller controls the generation circuit to generate a dark-time image signal equivalent to an image signal generated by the generation circuit without exposure to external light.