Method for generating a lookup table for a digital oscillator

Details Method for generating a lookup table for a digital oscillator Method for generating a lookup table for a digital oscillator

1997-10-01

1999-04-06

Wells, Kenneth B.

Boots, shoes, and leggings

36471802, 364721, 327106, 327107, 327129, G06F 102

Patent

active

058926925

ABSTRACT:
A digital waveform oscillator generates digitized waveforms without distortion using a lookup table. The frequencies which may be generated using direct lookup tables at their fundamental table frequencies are increased according to this invention by including multiple cycles of the waveform within a single table. The selection of a table length L and a number of cycles N to be stored in a lookup table is done in a manner to optimize corresponding values of the frequencies to be generated and the sample rate.

REFERENCES:
patent: 4998072 (1991-03-01), Sheffer
patent: 5031131 (1991-07-01), Mikos
patent: 5034977 (1991-07-01), Chen et al.
patent: 5126960 (1992-06-01), Thong
patent: 5198779 (1993-03-01), Bruton
patent: 5363443 (1994-11-01), Petty
Article, "Entertainment and information merge in the automobile", William C. Spelman, IEEE Vehicular Technology Society News, pp. 49-55, 1994.

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