Sensor pixel with linear and logarithmic response
US6323479A · kind A · utility
23Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel includes a photon detecting element coupled between a node and a ground, a transistor structure coupled between the node and a first predetermined voltage to provide a logarithmic response region, and a reset transistor coupled between the node and a second predetermined voltage to provide a linear response region where the second predetermined voltage is greater than the first predetermined voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.