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:
Aug. 09, 2022

Filed:

Sep. 28, 2020
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventor:

Chih-Min Liu, Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/3745 (2011.01); H01L 27/146 (2006.01); H04N 5/378 (2011.01); G01S 7/4914 (2020.01);
U.S. Cl.
CPC ...
H04N 5/3745 (2013.01); H01L 27/14609 (2013.01); H01L 27/14649 (2013.01); H04N 5/378 (2013.01); G01S 7/4914 (2013.01);
Abstract

A circuit is disclosed, including a sensing unit and first to fifth switching units. The sensing unit generates a sensing voltage to a sensing node. The first switching unit is coupled between the sensing node and a first node. The second switching unit is coupled between the sensing node and a second node and generates a first auxiliary voltage to the second node. The first capacitive unit is coupled to the second node. The third switching unit is coupled between the first and second nodes, and adjusts a first transfer voltage at the first node. The fourth switching unit is coupled between the sensing node and a third node, and generates a second transfer voltage to the third node. The fifth switching unit is coupled between the sensing node and a fourth node and generates a second auxiliary voltage to the fourth node.


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