Method and apparatus for improving and controlling dynamic range in an image sensor
US7616243B2 · kind B2 · utility
10Cited by
16References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/589
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for an electronic image sensor having a base exposure, followed by a second or multiple exposures that are formed during signal readout. A timing controller controls the signal readout, such that as each line is read, the second and subsequent exposures are subsequently added to the base exposure to enrich the dynamic range. The image sensor may further include an analog-to-digital converter and noise suppression to further enhance the efficacy of the dynamic range enrichment. The system may also include additional signal processing and scaling functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.