Automatic playing system for acoustic musical instrument

Details Automatic playing system for acoustic musical instrument Automatic playing system for acoustic musical instrument

1995-03-28

1997-07-22

Witkowski, Stanley J.

Music

Instruments

Automatic

G10F 102

Patent

active

056505809

ABSTRACT:
An automatic playing system sequentially rotates keys of an acoustic piano for reproducing a performance, and a controlling unit supplies a preliminary section and a post-treatment section to a solenoid coil of an actuator unit before and after a main section of a driving signal, respectively; the preliminary section gently comes into contact with the key before a plunger of the actuator unit starts a rotation of the key without a noise; and the post-treatment section causes the key to softly land on a back rail without a noise.

REFERENCES:
patent: 4972753 (1990-11-01), Adachi et al.
patent: 5097741 (1992-03-01), Kikumoto
patent: 5119712 (1992-06-01), Kato

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