Method of biasing the photodiodes of a matrix sensor through associated pixels thereof
US6707497B1 · kind B1 · utility
5Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jul 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/677
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image sensor comprises a detector circuit (17) with detector diodes (3), which are reverse biased during image sensing. It is characterized in that the cathode voltage of the detector diodes is controlled by forward biasing detector circuit (17) diodes via the read circuit (20). The control diodes can be dedicated diodes or forward biased photodetector diodes. In the latter case, a picture is taken in several sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.