Patent · US Active

Solid-state imaging element, imaging device, and method for controlling solid-state imaging element

US11310450B2 · kind B2 · utility

1Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 15, 2019
Grant dateApr 19, 2022
Priority date
Expiry dateApr 15, 2039

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03M1/123
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.