Digital signal processing arrangement using a cascaded integrato

Details Digital signal processing arrangement using a cascaded integrato Digital signal processing arrangement using a cascaded integrato

1974-11-22

1976-11-02

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347DA, 235183, 235197, H03K 1320

Patent

active

039900738

ABSTRACT:
An analog-to-digital counting encoder or a digital-to-analog counting decoder for a pulse code modulation signal typically requires a function generator using precision components to generate a piecewise linear comparison signal corresponding to a segment companding law. As a result, nonproportional component change introduces nonlinear distortion in the encoded or decoded signal. To mitigate nonlinear distortion and to provide a less expensive digital signal processing arrangement, the invention resides in an improved nonprecision component function generator. The function generator includes two serially connected integrators which are advantageously switched in a complementary fashion to provide the comparison signal.

REFERENCES:
patent: 3513467 (1970-05-01), Sliwkowski
patent: 3653035 (1972-03-01), Carbrey
Johannesen "Electronics Letters" Sept. 23, 1971, vol. 7, No. 10, pp. 593-594.

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