Analog-digital converter

Details Analog-digital converter Analog-digital converter

1982-10-28

1985-07-02

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347M, 367 65, 367 66, 367 67, H03K 1302, H03K 1303

Patent

active

045271488

ABSTRACT:
An A/D converter used with an A/D conversion system in which each of input analog signals applied thereto is amplified at a gain selected depending or the level of said each signal and subjected to A/D conversion. The A/D converter is arranged to select a desired one of predetermined gain select modes concerned with the selection of gain of the amplifier. Further, the A/D converter produces a reference analog signal of a level corresponding to the selected gain select mode and compares the input analog signal with the reference analog signal, thereby determining whether or not the gain of the amplifier is to be changed.

REFERENCES:
patent: 3646448 (1972-02-01), Harmon et al.
patent: 3685047 (1972-08-01), Sherer et al.
patent: 3699325 (1972-10-01), Montgomery, Jr. et al.
patent: 3798637 (1974-03-01), Fruhauf
patent: 4016557 (1977-04-01), Zitelli et al.
patent: 4121055 (1978-10-01), Doherty
patent: 4366469 (1982-12-01), Michaels et al.
Bernstein, What to Look for in Analog Input/Output Boards, Electronics, Jan. 19, 1978, pp. 113-119.

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