Rhythm unit with programmed envelope waveform, amplitude, and th

Details Rhythm unit with programmed envelope waveform, amplitude, and th Rhythm unit with programmed envelope waveform, amplitude, and th

1975-08-28

1977-03-08

Weldon, Ulysses

Music

Instruments

84 124, 84 126, 84 113, 84DIG12, G10F 100

Patent

active

040106675

ABSTRACT:
A rhythm unit produces repetitive pulses having one of a plurality of selectable predetermined time relations to each other for use as rhythm or accompaniment signals in an electronic organ or the like. Each of the pulses triggers operation of a modulator for modulating accompaniment tones in time with pulses produced by the rhythm unit, in correspondence with a programmed pattern. The shape of the modulated envelope waveform, its amplitude, and its frequency composition are programmed in accordance with a prearranged sequence, to give the desired sound characteristic within each of a plurality of individually selectable rhythms.

REFERENCES:
patent: 3518352 (1970-06-01), Plunkett
patent: 3549776 (1970-12-01), Shiga et al.
patent: 3637914 (1972-01-01), Hiyama
patent: 3808348 (1974-04-01), Okudaira
patent: 3861263 (1975-01-01), Okudaira

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