Digital-to-analog decoder utilizing time interpolation and rever

Details Digital-to-analog decoder utilizing time interpolation and rever Digital-to-analog decoder utilizing time interpolation and rever

1975-05-01

1976-10-19

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

179 15AV, H03K 1302

Patent

active

039874362

ABSTRACT:
In each character time of a pulse code modulation signal stream, the most significant bit group of the PCM character is reversibly incremented and decremented a plurality of times. The incrementing and decrementing is carried out in a selectable sequence for each discrete pair of subintervals in the character time. The selectable sequences are determined by the value of the least significant bit group of the character whereby the average value, over the character time of an analog signal derived from the changing most significant bit group information in each subinterval, is equal to the value represented by the character.

REFERENCES:
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patent: 3495234 (1970-02-01), Price et al.
patent: 3541354 (1970-11-01), Basham
patent: 3560960 (1971-02-01), Avignon et al.
patent: 3579232 (1971-05-01), Girard et al.
patent: 3699568 (1972-10-01), Thompson et al.
patent: 3750141 (1973-07-01), Poretti et al.
patent: 3754233 (1973-08-01), Sutherland
patent: 3893102 (1975-07-01), Candy
patent: 3925731 (1975-12-01), Brainard et al.
Kelson et al, "A Monolithic 10-b Digital-to-Analog Converter" IEEE Journal of Solid State Circuits, vol. Sc-8, No. 6, p. 396-408.

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