Touch response providing apparatus

Details Touch response providing apparatus Touch response providing apparatus

1981-12-15

1983-11-22

Witkowski, S. J.

Music

Instruments

84 11, 84 127, 84DIG7, 200 5A, 200 5B, 340365S, 340365A, G10H 106, G10H 134, G10H 146

Patent

active

044161786

ABSTRACT:
First to third switch contact pairs are provided for each of the performance keys of an electronic keyboard musical instrument such that they are successively closed in an interlocked relation to the operation of the associated key. A first time interval from the closure of the first switch contact pair till the closure of the second switch contact pair and a second time interval from the closure of the second switch contact pair till the closure of the third switch contact pair are counted in a CPU, and their ratio is obtained therein. The tone color of the output musical signal is controlled according to the value of this ratio, and the volume of the musical signal is controlled according to the length of the second time interval.

REFERENCES:
patent: 3935784 (1976-02-01), Koepke
patent: 4044642 (1977-08-01), Pearlman et al.
patent: 4067253 (1978-01-01), Wheelwright et al.
patent: 4079651 (1978-03-01), Matsui
patent: 4217803 (1980-08-01), Dodds
patent: 4362934 (1982-12-01), McLey
Funkschau 1977, Heft 24, "Piezotasten sorgen fur Pianoeffekt in elektronischen orgein, pp. 81-82.

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