Image sensor with analog-to-digital converter that generates a variable slope ramp signal
US6545624B2 · kind B2 · utility
65Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A programmable analog-to-digital converter (ADC) for use in a CMOS imaging system, the CMOS imaging system having an array of pixels, and the ADC configured to provide a enhanced conversion resolution for pixels providing a low analog voltage level and a relatively coarser conversion resolution for pixels providing a relatively higher analog voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.