Organ stop switching system

Details Organ stop switching system Organ stop switching system

1978-02-23

1979-11-06

Hix, L. T.

Music

Instruments

Wind

84370, G10B 310

Patent

active

041731670

ABSTRACT:
An organ stop switching system includes a plurality of stop switches and a random access memory within which combinations of stop switch settings are stored. The stop switch settings are multiplexed into a memory loop having a capacity fractionally smaller than the random access memory. This loop is used for an input and an output circuit for the random access memory during time slots corresponding to numbered pistons selected for storing and recalling stop setting combinations. A serial-to-parallel converter receives information from the memory loop and provides outputs for operating stop control circuitry of the organ.

REFERENCES:
patent: 3307050 (1967-02-01), Castle
patent: 3341819 (1967-09-01), Emerson
patent: 3497714 (1970-02-01), Castle
patent: 3518586 (1970-06-01), Nilssen
patent: 3699839 (1972-10-01), Denigan
patent: 3913442 (1975-10-01), Deutsch
patent: 3935781 (1976-02-01), Katoh
patent: 3940702 (1976-02-01), Yoshimura

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