US PATENT SUBCLASS 984 / 320
.~.~.~.~.~.~ Using piezo-electric means {G10H 1/055P}


Current as of: June, 1999
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984 /   HD   MUSICAL INSTRUMENTS

300  DD  ELECTRONIC MUSICAL INSTRUMENTS {structural combinations of microphones, pick-ups, or amplifiers with musical instruments subclasses 1+, 50+, and 100+; Instruments in which each note is generated by a different individually-actuated mechanical resonating structure and is amplified electrically subclasses 50+; Instruments in which each note is produced by a different electrically-vibrated sounding element subclasses 100+; Electronic circuits in general H03. {G10H} {4}
301  DD  .~ Details of electrophonic musical instruments {keyboards applicable also to other musical instruments subclasses 1+ and 50+} {G10H 1/00} {9}
309  DD  .~.~ Means for controlling the tone frequencies, e.g., attack, decay, etc.; Means for producing special musical effects, e.g., vibrato, glissado {for instruments using voltage controlled oscillators and amplifiers or voltage controlled oscillations and filters, etc., see subclass 381} {G10H 1/02} {2}
310  DD  .~.~.~ By additional modulation {G10H 1/04} {2}
314  DD  .~.~.~.~ During execution only {voice controlled instruments subclass 388} {G10H 1/053} {3}
316  DD  .~.~.~.~.~ By switches with variable impedance elements {G10H 1/055} {5}
320.~.~.~.~.~.~ Using piezo-electric means {G10H 1/055P}