Amplifier for analogue signal samples with automatic gain contro

Details Amplifier for analogue signal samples with automatic gain contro Amplifier for analogue signal samples with automatic gain contro

1973-01-10

1976-02-03

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

324115, 330 9, H03K 1302

Patent

active

039368190

ABSTRACT:
An electronic device for amplifying, with automatic gain control by discr values, analogue signal samples and thereafter preferably effecting analogue-to-digital conversion of the samples, consists of an amplifier circuit, a comparator circuit, and a delay store circuit. The amplifier has a basic gain during a gain control or gain ranging operation, and supplies an output sample amplified with sufficient gain to bring it into the region of a predetermined voltage. The comparator circuit compares the output of the amplifier circuit with a reference and supplies an output in accordance with the result of the comparison. For analogue-to-digital conversion the amplifier circuit supplies for an input signal U an output signal 2U - VQ, where VQ is the quantification voltage, or, in other embodiments a signal 2U.

REFERENCES:
patent: 2569927 (1951-10-01), Gloess et al.
patent: 2730676 (1956-01-01), Barker
patent: 2832827 (1958-04-01), Metzger
patent: 2969535 (1961-01-01), Foulkes
patent: 3049701 (1962-08-01), Amdahl et al.
patent: 3170153 (1965-02-01), Brooks
patent: 3283319 (1966-11-01), Kaneko
patent: 3699567 (1972-10-01), Kiyasu et al.
patent: 3703002 (1972-11-01), Van Saun

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