Reader for electromagnetic radiation detection element, sensor, and the corresponding read process
US6712506B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/75
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a reader for an electromagnetic radiation detection element comprising:at least one integration capacitor (16) to integrate electrical charges output by the said detection element,an amplifier (18) with a high impedance terminal (20) connected to the integration capacitor (16) and a low impedance terminal connected to an output stage (22), andmeans (24, 27) of isolating the integration capacitor (16) from the detection element when the capacitor voltage exceeds a set value.According to the invention, the comparator means are connected to the low impedance terminal (50) of the amplifier (18).Application to sensors in matrices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.