Method and device for varying pitch of electronically generated

Details Method and device for varying pitch of electronically generated Method and device for varying pitch of electronically generated

1995-11-06

1997-12-09

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84730, 84745, G10H 300

Patent

active

056963459

ABSTRACT:
A device (1) for varying pitch manually on electronic keyboard instruments having electronically generated tones is made as a stick or rod. The upper portion of the stick is also the upper part of handle (5) which extends upwards, through a window (11) above the top surface of a casing (13) of the instrument. The handle (5) is attached to an elastic leaf spring (3), the bending of which is sensed by means of strain gauges (21) mounted on the plate (3) at the lower portion thereof, adjacent the attachment region thereof to a rigid cantilever (19). When the handle (5) is moved by means of a finger in its cup-shaped, top surface, the leaf spring (3) is deflected, the deflection signal being provided to the electronic circuits that generate the tones and that then give them a higher or lower pitch depending on the deflection. Such a pitch stick (1) does not contain a "dead" region at its rest position or non-influenced position, it does not require initially, when it is acted on for a displacement away from its rest position, an initial force and it has a simple and durable construction.

REFERENCES:
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patent: 4852443 (1989-08-01), Duncan et al.
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patent: 5119713 (1992-06-01), Usa et al.
patent: 5241126 (1993-08-01), Usa et al.
patent: 5401898 (1995-03-01), Usa et al.

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