Spike-free optoelectronic amplifier having a multiplexer at all times being electrically separated from the output of a switch device
US5175427A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1990 |
| Grant date | Dec 29, 1992 |
| Priority date | — |
| Expiry date | Oct 10, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A optoelectronic circuit arrangement, for instance for thermal viewing equipment, comprises a plurality of independent photodetector elements, whose signals are combined by multiplexers. The multiplexer output is connected with the common input of a switched integrator, which applies integrated signals to an output switch device, steps being taken to ensure that the multiplexer is at all times electrically separated from the output of the output switch device. For this purpose the integrator has at least one channel with three electronic switching members which in a cyclic sequence perform the operations of "integration", "output of integral value to output" and "erase integral value".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.