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.

Date of Patent:
Feb. 14, 2017

Filed:

Dec. 13, 2012
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Katsuhito Sakurai, Machida, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/148 (2006.01); H04N 5/378 (2011.01); H04N 5/3745 (2011.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14806 (2013.01); H01L 27/14612 (2013.01); H04N 5/378 (2013.01); H04N 5/3745 (2013.01); H01L 27/1464 (2013.01); H01L 27/14605 (2013.01);
Abstract

A photoelectric conversion unit generates an amount of charges. A differential amplifier has first and second input transistors and is configured to output a current signal based on the amount of charges. A reset voltage providing unit is configured to provide a reset voltage for input nodes of the first and second input transistors. A transfer transistor is electrically connected to, and configured to transfer a charge to, the input node of the first input transistor. A reset transistor is electrically connected to one of the input nodes, and configured to control an electrical connection between the reset voltage providing unit and the input node connected to the reset transistor. A connection transistor has first and second nodes and is configured to control an electrical connection between the input nodes. The first and second nodes are connected to the input nodes of the first and second input transistors, respectively.


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