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:
Jan. 19, 2021

Filed:

Nov. 01, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Motonori Ishii, Osaka, JP;

Yoshiyuki Matsunaga, Kyoto, JP;

Yutaka Hirose, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/00 (2006.01); H04N 5/363 (2011.01); H04N 5/3745 (2011.01); H04N 5/374 (2011.01); H04N 5/378 (2011.01);
U.S. Cl.
CPC ...
H04N 5/363 (2013.01); H04N 5/378 (2013.01); H04N 5/3742 (2013.01); H04N 5/3745 (2013.01);
Abstract

An imaging device includes a photoelectric converter generating signal charge; a charge storage region storing the signal charge; a first transistor having a gate coupled to the charge storage region; a second transistor having a source and a drain; and voltage supply circuitry supplying voltages varying with time. An output of the first transistor is fed back to the second transistor and is supplied to the charge storage region. A reset operation for discharging the signal charge in the charge storage region includes a first reset operation and a second reset operation. In the first reset operation, the second transistor changes from an OFF state to an ON state and then changes to an OFF state. In the second reset operation, the voltage supply circuitry supplies the voltages to a gate of the second transistor so that the second transistor gradually changes from an OFF state to an ON state.


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