Keyboard musical instrument and recorder/playback controller inc

Details Keyboard musical instrument and recorder/playback controller inc Keyboard musical instrument and recorder/playback controller inc

1997-12-02

1999-03-09

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84 21, 84724, G10H 102, G10H 500

Patent

active

058803939

ABSTRACT:
An acoustic piano, solenoid-operated key actuators for moving black/white keys in response to a driving signal and an electric system form in combination a keyboard musical instrument, and the electric system previously establishes first relations between key motions and associated hammer motions and second relations between the magnitude of the driving signal and final hammer velocity; the electric system estimates the final hammer velocity and a time delay between a key-on timing and an impact timing on the basis of the first relations for producing pieces of music data information in a recording mode, and tailors the driving signal on the basis of the second relations in a playback mode for exactly reproducing the original performance.

REFERENCES:
patent: 5324883 (1994-06-01), Kondo
patent: 5357047 (1994-10-01), Isozaki et al.
patent: 5612502 (1997-03-01), Ura

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