Circuit arrangement for converting analog signals into PCM signa

Details Circuit arrangement for converting analog signals into PCM signa Circuit arrangement for converting analog signals into PCM signa

1974-06-26

1976-11-23

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347AD, 340347DA, 179 15AV, H03K 1302

Patent

active

039939928

ABSTRACT:
An analog signal PCM signal/PCM signal-analog signal converter having a sawtooth generator, the sawtooth voltage of which is compared in a first comparator with the analog signal to be converted, the sawtooth signal being represented in instantaneous amplitude by code chains provided by a register which also provides timing pulses coincident with the pulse rate of the PCM signals. The analog comparator controls the forwarding of the code chain corresponding to the analog signal to be converted and delivered through a compandor which allows for non-linear signals.
Incoming PCM signals are compared with the code chains as fed through the compandor in a digital comparator which utilizes a positive result to gate the sawtooth voltage output and generate an analog signal.

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patent: 3883864 (1975-05-01), Thomas
patent: 3887911 (1975-06-01), Bell

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