Solid-state imaging device
US9407839B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state imaging device including an AD converter and a pixel array is provided. The AD converter performs a ramp comparison and a successive-approximation. The AD converter determines a digital value by performing one of the ramp comparison and the successive-approximation as a former comparison operation and then performing the other as a latter comparison operation in the range narrowed down by the former comparison operation. The pixel array supplies, to the AD converter, a reference signal corresponding to a reset level of the pixel, and an image signal having image information. The AD converter performs the latter comparison operation without performing the former comparison operation, when the reference signal is supplied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.