Automatic gain control apparatus which adjusts bias and gain to

Details Automatic gain control apparatus which adjusts bias and gain to Automatic gain control apparatus which adjusts bias and gain to

1989-12-06

1991-01-22

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214C, H01J 4014

Patent

active

049872982

ABSTRACT:
An automatic gain control apparatus includes an optical receiving element. The optical receiving element generates electrical signals with an adjustable multiplication factor. A variable gain controller amplifies the electrical signals with an adjustable gain. A comparator generates determined signals corresponding to the difference between levels of an amplified signal from the gain controller and a predetermined signal. A comparator controls the gain of the controller. Also, bias signals are produced for setting the multiplication factor to first and second defined values.

REFERENCES:
patent: 4019048 (1977-04-01), Maione et al.
patent: 4292514 (1981-09-01), Ohtomo
patent: 4298835 (1981-11-01), Rowe
patent: 4438348 (1984-03-01), Casper et al.
patent: 4467192 (1984-08-01), Velo
patent: 4495410 (1985-01-01), Minami et al.
patent: 4599527 (1986-07-01), Beaudet et al.
patent: 4644145 (1987-02-01), Gundner
patent: 4665311 (1987-05-01), Cole
patent: 4730128 (1988-03-01), Seki

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