Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1985-10-07

1986-10-28

Witkowski, S. J.

Music

Instruments

84DIG11, G10H 118, G10H 700

Patent

active

046191747

ABSTRACT:
An electronic musical instrument are provided a plurality of tone production channels to produce musical tones polyphonically. Each of the tone production channel includes a first counter which divides clock pulses by either one of N and N+1 to deliver an output pulse. A second counter and a control circuit are further provided in the instrument, which are commonly used for respective tone production channels. The second counter counts, on the time division basis, the output pulses from the first counters, and the control circuit designates the dividing number of the first counter is relation with the counted value of the second counter. Each of the tone production channels produces a tone signal having a frequency predetermined by the combination of N and N+1. By time divisionally using the second counter and the control circuit, the construction of the instrument is simplified.

REFERENCES:
patent: 3639913 (1972-02-01), Watson
patent: 4333374 (1982-06-01), Okumura et al.

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