Music – Instruments
Patent
1976-07-22
1977-11-22
Weldon, Ulysses
Music
Instruments
84 117, 84DIG22, G10H 100
Patent
active
040590399
ABSTRACT:
An electronic organ includes logic and a memory for detecting and storing a root note signal identifying a chord which has been either automatically or manually generated. Priority logic, coupled with the memory, passes the lowest root note signal to a tone selection matrix which passes a plurality of tone signals representing the note intervals forming the selected chord. A sequential gating circuit receives all of the tone signals and is responsive to an arpeggio circuit, a strum circuit, or a rhythm unit to gate selected tone signals, one at a time, to the voicing circuitry. When one or more of the tone signals are octavely displaced within the selected chord, disinverting gates are enabled to unfold the chord and cause the tone signals to occur in order of ascending frequency.
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patent: 3546355 (1970-12-01), Maynard
patent: 3548066 (1970-12-01), Freeman
patent: 3549776 (1970-12-01), Shiga et al.
patent: 3567838 (1971-03-01), Tennes et al.
patent: 3659031 (1972-04-01), Adachi
patent: 3719767 (1973-03-01), Matumoto et al.
patent: 3789718 (1974-02-01), Bunger
patent: 3836692 (1974-09-01), Nakajima
patent: 3844192 (1974-10-01), Brand et al.
patent: 3889568 (1975-06-01), Amaya
Warwick Electronics Inc.
Weldon Ulysses
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