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:
Jul. 26, 2022

Filed:

May. 17, 2021
Applicant:

Shanghai Harvest Intelligence Technology Co., Ltd., Shanghai, CN;

Inventor:

Fengjun Gu, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/378 (2011.01); H04N 5/357 (2011.01); H01L 27/146 (2006.01); G06F 7/60 (2006.01); G06F 7/68 (2006.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H04N 5/3575 (2013.01);
Abstract

A signal conversion circuit and a signal readout circuit are provided. The signal conversion circuit includes: an operational amplifier, configured to amplify an electric signal output by a sensing array; an input switched capacitor, wherein an end of the input switched capacitor is configured to receive the electric signal output by the sensing array, and another end of the input switched capacitor is coupled with an input end of the operational amplifier; and a feedback switched capacitor, wherein an end of the feedback switched capacitor is coupled with the input end of the operational amplifier, and another end of the feedback switched capacitor is coupled with an output end of the operational amplifier.


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