Electronic music instrument

Details Electronic music instrument Electronic music instrument

1975-10-30

1978-12-05

Weldon, Ulysses

Music

Instruments

84 117, 84 111, 84 119, 84 124, 84 126, G10H 100

Patent

active

041280326

ABSTRACT:
An electronic musical instrument has a plurality of tone selectors which select musical tones; a waveshape calculator which calculates a waveshape represented by amplitudes at two or more than two sampled points of one period of the selected tone and which is operative whenever the tone selectors are actuated; a plurality of waveshape memories which temporarily memorize the calculated waveshapes; clock signal generator which generates clock signals with high frequencies corresponding to pitches of depressed keyswitches of the musical instrument and which is operative whenever the keyswitches are depressed; a reading circuit which repetitively and successively reads out the memorized waveshape amplitudes by the clock signal generated by the clock signal generator; and a converter which converts the waveshape amplitudes read out by the reading circuit to a musical tone, wherein a musical tone is generated by repetitively reading out the temporarily memorized musical waveshape.

REFERENCES:
patent: 3422718 (1969-01-01), Noehren
patent: 3515792 (1970-06-01), Deutsch
patent: 3639913 (1972-02-01), Watson
patent: 3646241 (1972-02-01), Ott
patent: 3755608 (1973-08-01), Deutsch
patent: 3809788 (1974-05-01), Deutsch
patent: 3833750 (1974-09-01), Iorio
patent: 3844379 (1974-10-01), Tomisawa et al.
patent: 3859884 (1975-01-01), Grable
patent: 3969969 (1976-07-01), Clark, Jr. et al.
patent: 3986423 (1976-10-01), Rossum

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