Music – Instruments – Electrical musical tone generation
Patent
1991-02-26
1993-07-13
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
84743, G10H 132, G10H 500
Patent
active
052275752
ABSTRACT:
A musical tone control apparatus in an electronic musical instrument having a hollow body portion for controlling a musical tone or musical tone factors to be generated in accordance with operation of the player. The control apparatus includes a flexible cord contained within the body portion of the instrument to be drawn outwardly from a hole in a peripheral wall of the body portion and being applied thereon with a load to be drawn into the body portion after drawn outwardly, an operation knob connected to an outer end of the cord and being maintained in engagement with the hole of the body portion for restricting retraction of the cord into the body portion against the load acting thereon, an electric detection device for detecting movement of the cord caused by manipulation of the operation knob and for producing an electric signal indicative of the movement of the cord, and a tone control device responsive to the electric signal for controlling a musical tone or musical tone factors to be generated in accordance with the movement of the flexible cord.
REFERENCES:
patent: 4904222 (1990-02-01), Gastgeb et al.
patent: 4998457 (1991-03-01), Suzuki et al.
Witkowski Stanley J.
Yamaha Corporation
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