Keyboard musical instrument performable without noise in silent

Details Keyboard musical instrument performable without noise in silent Keyboard musical instrument performable without noise in silent

1996-04-10

1997-09-02

Witkowski, Stanley J.

Music

Instruments

Automatic

84 3, 84171, 84658, 84719, G10F 102, G10H 1053, G10H 146

Patent

active

056635133

ABSTRACT:
A keyboard musical instrument is fabricated on the basis of an acoustic piano, and a hammer stopper and solenoid-operated actuators are provided for hammer assemblies and black and white keys; and a controller instructs the solenoid-operated actuators to move the black and white key at different velocities depending upon the position of the hammer stopper, and causes the acoustic piano to give little offense to the ear at a blocking position of the hammer stopper.

REFERENCES:
patent: 4756223 (1988-07-01), Murakami

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