Interval repeat generator for keyboard musical instrument

Details Interval repeat generator for keyboard musical instrument Interval repeat generator for keyboard musical instrument

1976-08-09

1977-10-11

Schaefer, Robert K.

Music

Instruments

84 103, G10H 102

Patent

active

040529240

ABSTRACT:
A keyboard instrument having key-operated switches connected in groups corresponding to musical octaves. The groups of keys are pulsed sequentially to provide successive patterns of pulses on parallel time-shared output lines, each group of keys having its own time slot by which the octave of the notes is identified. The pattern of pulses during each time slot identifies the notes within the octave that are to be generated. A repeat signal generator periodically modifies or interrupts the pattern of pulses during the associated time slot. The pattern of pulses may be in effect interrupted as to the keyed note by shifting the pattern of pulses to an adjacent time slot corresponding to another octave for repetitively generating the same note alternately in two octaves.

REFERENCES:
patent: 3598892 (1971-08-01), Yamashita
patent: 3842184 (1974-10-01), Kniepkamp
patent: 3910150 (1975-10-01), Deutsch et al.
patent: 3954038 (1970-05-01), Adams

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