Automatic gain control in photodetectors
US7495205B2 · kind B2 · utility
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3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2007 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | May 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The amount of gain applied to a photodetector such as a photomultiplier tube (PMT) is limited to an amount that does not cause the applied PMT bias voltage to overdrive, hence damage, the PMT. Techniques for limiting the PMT gain are implemented in a way that does not interfere with the precision with which the PMT gain may be established (by selection of a reference level) below that limited level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.