Spike-free optoelectronic amplifier having a multiplexer at all

Details Spike-free optoelectronic amplifier having a multiplexer at all Spike-free optoelectronic amplifier having a multiplexer at all

1990-10-10

1992-12-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214A, H01J 4014

Patent

active

051754274

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".

REFERENCES:
patent: 4335406 (1982-06-01), Ohba et al.
patent: 4567363 (1986-01-01), Goodnough
patent: 4819071 (1989-04-01), Nakamura

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