Music – Instruments
Patent
1974-03-04
1977-04-12
Witkowski, Stanley J.
Music
Instruments
84DIG2, 84DIG20, G10H 506
Patent
active
040167925
ABSTRACT:
A monophonic electronic music synthesizer in which keying signals are collected on common note busses and common octave busses. Tone signals from a top octave tone generator are gated by separate note gates controlled by keying signals on common note busses to select the note tone signal regardless of octave. A chain of frequency dividers fed by the note tone signal produce octavely related tone signals which are gated by separate octave gates controlled by keying signals on common octave busses. A preferred embodiment especially useful in an integrated organ-synthesizer system employs a low octave lockout circuit to select an active highest octave of actuated keyswitches and a preference gating arrangement for tone signals to produce high note select gating of monophonic tone signals. A D.C. keyed volts per octave circuit is also disclosed.
REFERENCES:
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patent: 2933004 (1960-04-01), Hanert
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patent: 3766305 (1973-10-01), Schrecongost
patent: 3781450 (1973-12-01), Nakajima
patent: 3806623 (1974-04-01), Yamada
patent: 3836692 (1974-09-01), Nakajima
Hammond Corporation
Witkowski Stanley J.
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