Image sensor, operation method of image sensor, imaging device, imaging method, and electronic apparatus
US9807328B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2015 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jun 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an image sensor having a column ADC configuration including, for every pixel row, an analog digital converter (ADC) that converts a pixel signal including an analog signal generated by photoelectric conversion into an output signal including a digital signal. The image sensor includes a plurality of clamp operation units each configured to calculate a reference level based on each output signal of a plurality of ADC groups, and a reference voltage output unit configured to convert a digital signal of the reference level calculated by the clamp operation unit into a reference voltage including an analog signal, and supply the reference voltage to each the ADC that constitutes the ADC group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.