Electric string instrument

Details Electric string instrument Electric string instrument

1979-04-02

1980-12-02

Truhe, J. V.

Music

Instruments

84 105, 84DIG10, G10H 300

Patent

active

042364337

ABSTRACT:
The guitar has a novel feedback arrangement for sustaining the sound generated from the strings and including a pickup associated with each string and a corresponding driver intercoupled with the pickup in a feedback loop that also includes a gain-controlled amplifier. The amplifiers are controlled in common from a variable control means. The pickups, drivers and associated electronics are all commonly mounted from the bridge. In an alternate embodiment of the invention there is provided an improved sustain technique that provides a more natural sustain characteristic, employing a parametric type of excitation. This embodiment may comprise a pickup, amplifier and tensioning member responsive to the output of the amplifier for sustaining string vibration by causing longitudinal string displacement by means of the tensioning member. In a similar embodiment the string tension may be held constant and the string length varied instead.

REFERENCES:
patent: 472019 (1892-03-01), Ohmart
patent: 1002036 (1911-08-01), Clement
patent: 2401372 (1946-06-01), Rienstra
patent: 2578620 (1951-12-01), Wilhelm
patent: 2920522 (1960-01-01), DeArmond
patent: 3185755 (1965-05-01), Williams et al.
patent: 3524375 (1970-08-01), Hopping
patent: 3742113 (1973-06-01), Cohen
patent: 4075921 (1978-02-01), Heet

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