Active pixel sensor (APS) readout structure with amplification
US6844897B1 · kind B1 · utility
33Cited by
4References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Jan 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An active pixel sensor (APS) includes an array of individually addressable APS cells ad a pixel readout structure that includes an amplifier. The amplifier may have a two-branched structure and provide a gain of one or higher. Additional switches may be provided in the pixels to provide protection for pixel output transistors from voltage changes in the column line. Structure may also be provided for optional gain selection in the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.