Divider keyer circuit for synthesis organ

Details Divider keyer circuit for synthesis organ Divider keyer circuit for synthesis organ

1978-02-24

1981-11-03

Truhe, J. V.

Music

Instruments

84 119, 84DIG11, 84DIG23, G10H 502

Patent

active

042979358

ABSTRACT:
A divider keyer circuit arrangement for a synthesis organ utilizing four integrated circuit chips to generate the notes for a 61 key manual with 9 harmonic drawbacks or tabs. On-chip cross wiring and the use of clock lines for synchronization pulses and other design techniques enable the use of four identical integrated circuit chips in standard 40 pin packages to be used to generate the full complement of notes for a 61 note keyboard.

REFERENCES:
patent: 3636231 (1972-01-01), Schrecongost
patent: 3743756 (1973-07-01), Fransson
patent: 3748944 (1973-07-01), Schrecongost
patent: 3755609 (1973-08-01), Millet
patent: 3972259 (1976-08-01), Deutsch
patent: 4055103 (1977-10-01), Machanian
patent: 4083286 (1978-04-01), Faulkner

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