Electronic musical instrument with quantized resistance strings

Details Electronic musical instrument with quantized resistance strings Electronic musical instrument with quantized resistance strings

1987-06-26

1990-09-04

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84682, 84722, 84DIG30, G10H 118, G10H 500

Patent

active

049534394

ABSTRACT:
For reading the frets of a stringed electronic musical instrument, a plurality of resistance wire strings are secured to a nut end and a bridge of the instrument, with the strings superposing in parallel relationship over a plurality of conducting frets mounted on a fingerboard on the instrument. The voltages produced by depressing the strings to the conducting frets, after being inverted and linearized, are quantized to levels representative of the particular frets to obviate the effects of contact resistance, and decision voltage levels are selected so as to account for such contact resistance. To enable the signals to be fed as conventional information through a MIDI channel to a synthesizer for generating frequencies corresponding to the signals, an analog to digital converter is used. The different components, as well as the digitized linearized signals, are selectively controlled and fed, respectively, to a microprocessor.

REFERENCES:
patent: 3902395 (1975-09-01), Avant
patent: 4038897 (1977-08-01), Murray et al.
patent: 4300431 (1979-12-01), DeRocco
patent: 4372187 (1983-02-01), Berg
patent: 4430918 (1984-02-01), Meno
patent: 4621557 (1986-11-01), Newell
patent: 4630520 (1986-12-01), Bonanno
patent: 4653376 (1987-03-01), Allured et al.
patent: 4697492 (1987-10-01), Freed

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