Higher dynamic range image sensor with signal integration
US7202463B1 · kind B1 · utility
44Cited by
7References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4406
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Briefly, in accordance with one embodiment of the invention, a higher dynamic range image sensor may be implemented by comparing a voltage across the sensor to a threshold voltage during image capture. At the threshold voltage, a count may be registered and the image sensor may be reset for continued image capture until an exposure is complete. A final image signal may be obtained by multiplying the threshold voltage by the number of counts registered and adding the final image sensor voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.