Music – Instruments – Electrical musical tone generation
Patent
1991-01-15
1992-11-10
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
84DIG30, G10H 102, G10H 318
Patent
active
051626039
ABSTRACT:
Muting of an electric guitar is accomplished by sensing depression of a string by the player during playing, and deactivating an electrical muting circuit in response to said depression. To sense string depression, each electrically-conductive string is supplied with a voltage with respect to the metal frets of the guitar, so that upon depression of any string a current flows through that string to a corresponding transistor which turns off the normal muting of that string; upon release of the string, the current stops and the muting resumes. The muting is preferably accomplished for each string by a corresponding respective FET, normally turned on to short-circuit to ground the audio signal from that string. Resistance-capacitance circuits are provided to control how fast the muting is turned on and off.
REFERENCES:
patent: 4321852 (1982-03-01), Young, Jr.
patent: 4372187 (1983-02-01), Berg
patent: 4760767 (1988-08-01), Tsurbuchi
patent: 5024134 (1991-06-01), Uchiyama
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