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. 19, 2022
Filed:
Apr. 15, 2019
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Chihiro Okada, Kanagawa, JP;
Kouji Matsuura, Kanagawa, JP;
SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
In a solid-state imaging element in which an ADC is disposed, deterioration of conversion accuracy of the ADC caused by a dark current is inhibited. A signal voltage sample-and-hold circuit samples and holds, as a sample signal voltage, a voltage obtained by dividing a difference between a voltage of a vertical signal line corresponding to a light reception amount in a pixel and a predetermined variable reference voltage. An analog-to-digital converter converts an analog signal corresponding to the sample signal voltage to a digital signal. A reference voltage control section performs control to modulate a value of the variable reference voltage according to a dark current amount in the pixel.