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.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Nov. 15, 2024
Omnivision Technologies, Inc., Santa Clara, CA (US);
Woon Il Choi, Sunnyvale, CA (US);
Keiji Mabuchi, Cupertino, CA (US);
OMNIVISION TECHNOLOGIES, INC., Santa Clara, CA (US);
Abstract
An image sensor and a readout method for a pixel circuit thereof are provided. In the pixel circuit, a first transistor is coupled between a floating diffusion portion and a first capacitor, and a second transistor is coupled between the first transistor and a second capacitor. A readout cycle of the pixel circuit includes a high conversion gain (HCG) readout operation, an all-capacitor readout operation, a first readout stage, a second readout stage, and a third readout stage. The HCG readout operation is used to read out an HCG sensing result. The first readout stage and the second readout stage are used to read out a low conversion gain (LCG) sensing result. The second readout stage and the third readout stage are used to read out a first medium illumination sensing result. The all-capacitor readout operation is used to read out a high illumination sensing result.