Delta sigma to PCM converter

Details Delta sigma to PCM converter Delta sigma to PCM converter

1978-01-31

1981-01-06

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H04L 300

Patent

active

042439779

ABSTRACT:
A converter for converting a delta sigma modulated signal into a pulse code modulated signal comprises an n bit counter, an (n-1) true/complement, zero one element which is controlled by the most significant bit of the counter and operates on (n-1) bits of the counter in accordance with the pulse density modulation input to produce weighted output samples. An m bit accumulator accumulates the weighted samples to produce pulse code modulated samples.

REFERENCES:
patent: 3707712 (1972-12-01), Deschenes
patent: 3716849 (1973-02-01), Metcalf
patent: 3825831 (1974-07-01), Ishiguro
patent: 3949299 (1976-04-01), Song
patent: 3971891 (1976-07-01), Wolcott
patent: 4002981 (1977-01-01), Eggermont
patent: 4035724 (1977-07-01), Stephenne
patent: 4087754 (1978-05-01), Song

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