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:
Dec. 31, 2024

Filed:

Jul. 06, 2022
Applicant:

Omnivision Technologies, Inc., Santa Clara, CA (US);

Inventors:

Keiji Mabuchi, Cupertino, CA (US);

Tiejun Dai, Santa Clara, CA (US);

Assignee:

OMNIVISION TECHNOLOGIES, INC., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 25/59 (2023.01); H04N 25/46 (2023.01); H04N 25/585 (2023.01); H04N 25/621 (2023.01); H04N 25/771 (2023.01); H04N 25/778 (2023.01); H04N 25/79 (2023.01);
U.S. Cl.
CPC ...
H04N 25/59 (2023.01); H04N 25/46 (2023.01); H04N 25/585 (2023.01); H04N 25/621 (2023.01); H04N 25/771 (2023.01); H04N 25/778 (2023.01); H04N 25/79 (2023.01);
Abstract

A pixel circuit includes a first photodiode and a second photodiode. The first and second photodiodes photogenerate charge in response to incident light. A first transfer transistor is coupled to the first photodiode. A first floating diffusion is coupled to the first transfer transistor. A second transfer transistor is coupled to the second photodiode. A second floating diffusion is coupled to the second transfer transistor. A dual floating diffusion transistor is coupled between the first and second floating diffusions. An overflow transistor is coupled to the second photodiode. A capacitor is coupled between a voltage source and the overflow transistor. A capacitor readout transistor is coupled between the capacitor and the second floating diffusion. An anti-blooming transistor coupled between the first photodiode and a power line.


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