Electronic keyboard instrument

Details Electronic keyboard instrument Electronic keyboard instrument

1979-04-03

1981-07-07

Witkowski, Stanley J.

Music

Instruments

84 121, 84 124, 84DIG9, G10H 112, G10H 500

Patent

active

042768020

ABSTRACT:
An electronic keyboard instrument generates signals of frequencies respectively corresponding to keys by depressing the keys of a keyboard from a signal source, and reproduces a musical note corresponding to the generated signal. The frequency spectrum of an external signal is detected and used to control the frequency spectrum of the generated signal to cause the frequency spectrum of the generated signal to approximate that of the external signal.

REFERENCES:
patent: 3277245 (1966-10-01), Sponga
patent: 3479440 (1969-11-01), Martin et al.
patent: 3520984 (1970-07-01), Machanian
patent: 3539701 (1970-11-01), Milde
patent: 3598891 (1971-08-01), Adachi
patent: 3867862 (1975-02-01), Jones et al.
patent: 3911776 (1975-10-01), Beigel
patent: 4077298 (1978-03-01), Kondo
patent: 4142434 (1979-03-01), Gross

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