Digital signal synthesizer

Details Digital signal synthesizer Digital signal synthesizer

1987-05-06

1988-11-01

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

364724, H03M 112

Patent

active

047823240

ABSTRACT:
A method and apparatus for converting a digital signal into a band-limited analog signal with variable bandwidths, a high level of performance, high spurious frequency rejection, and simple implementation, employing polyphase interpolating digital filters, a fixed-sampling rate digital to analog converter, and a fixed-frequency analog low-pass filter.

REFERENCES:
patent: 4467316 (1984-08-01), Musmann et al.
patent: 4495591 (1985-01-01), Loomis, Jr.
Multirate Digital Signal Processing, pp. 202 et seq., Crochiere and Rabiner.

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