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:
May. 19, 2026

Filed:

Jun. 27, 2024
Applicant:

Smartsens Technology(hk) Co., Limited, HK, CN;

Inventors:

Guang Yang, Shanghai, CN;

Shengxin Zhang, Shanghai, CN;

Jing Yang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 25/771 (2023.01); H04N 25/59 (2023.01); H04N 25/766 (2023.01); H04N 25/78 (2023.01);
U.S. Cl.
CPC ...
H04N 25/771 (2023.01); H04N 25/59 (2023.01); H04N 25/766 (2023.01); H04N 25/78 (2023.01);
Abstract

An image sensor and a control method thereof. The image sensor includes pixel blocks arranged in an array. A photosensitive unit and an overflow unit are coupled to a transmission node, a reset unit and a readout unit are coupled to a floating diffusion node; and a transmission control unit is coupled between the transmission node and the floating diffusion node. The photosensitive unit converts optical signals into first/second charge signals; the transmission control unit controls a transfer path between the transmission node and the floating diffusion node, so that the second charge signal is transferred to the overflow unit in an exposure phase, and the first charge signal and the second charge signal are read out in a quantization phase; the reset unit resets the transmission node and the floating diffusion node; the readout unit reads out the first charge signal and the second charge signal.


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