Multi-modulator digital-to-analog converter

Details Multi-modulator digital-to-analog converter Multi-modulator digital-to-analog converter

1990-12-24

1992-06-16

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341145, H03M 168

Patent

active

051227991

ABSTRACT:
A digital signal having a plurality of bits is apportioned by the DAC into a plurality of words, at least one of which has a plurality of bits. Each of the plurality of words is then processed in an energy signal producing means, such as a .SIGMA.-.DELTA. modulator, to produce an output energy signal whose time average represents the input digital word portion. The energy output signals are then summed to provide the analog signal.

REFERENCES:
patent: 4595910 (1986-06-01), Wine
Ritchie, et al., "Interpolative Digital-to-Analog Converters," Nov. 1974, IEEE Transactions on Communications, vol. COM 22,-No. 11 pp. 1797-1806.

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