Key assignor for a touch responsive electronic musical instrumen

Details Key assignor for a touch responsive electronic musical instrumen Key assignor for a touch responsive electronic musical instrumen

1984-12-03

1986-11-04

Perkey, William B.

Music

Instruments

84 127, G10H 102, G10H 146

Patent

active

046204695

ABSTRACT:
A keyboard operated musical instrument is disclosed in which the speed of successively closing a first and second key contact on a keyboard switch is measured by means of a key detect and assignor system. A fast response time is obtained by scanning only the second set of key contacts which correspond to a previously detected closure of a first key contact. The measured closure speed can be used to control various musical effects such as the initial loudness in a touch responsive tone generation system. A method is also disclosed for measuring and utilizing the speed with which a keyswitch is released.

REFERENCES:
patent: 3882751 (1975-05-01), Tomisawa et al.
patent: 4351221 (1982-09-01), Starnes et al.
patent: 4469000 (1984-09-01), Fujiwara et al.
patent: 4493237 (1985-01-01), DeLong et al.

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