Piano-action keyboard

Details Piano-action keyboard Piano-action keyboard

1979-01-02

1980-08-19

Witkowski, S. J.

Music

Instruments

84 127, 84DIG7, 200277, G10H 102

Patent

active

042178037

ABSTRACT:
A piano-action keyboard for an electronic musical instrument or the like wipes a switch actuator (or other mechanical component of electric signal translation means) across switch contacts on a printed circuit board to generate signals indicative of the position and motion of a key when played. The keyboard provides a highly realistic piano "feel" through an array of paired depressable playing keys and arms. Each such arm supports a switch actuator or the like, with varying force transmission at different stages of depression of its corresponding key, the overall electrical-mechanical combination affording a response in terms of both actual results and kinesthetic feedback simulating a manual piano action.

REFERENCES:
patent: 3480744 (1969-11-01), Yamada
patent: 3580979 (1971-05-01), Amano
patent: 3835235 (1974-09-01), Amano
patent: 3845683 (1974-11-01), Lehmann
patent: 3943812 (1976-03-01), Nagai et al.
patent: 4044642 (1977-08-01), Pearlman et al.
patent: 4111091 (1978-09-01), Hinago

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