Automatic arpeggio electronic musical instrument

Details Automatic arpeggio electronic musical instrument Automatic arpeggio electronic musical instrument

1976-09-01

1977-10-18

Schaefer, Robert K.

Music

Instruments

84 103, G10H 102

Patent

active

040540782

ABSTRACT:
An automatic arpeggio musical instrument includes a pulse generator having a plurality of keys for generating periodic pulses by depression of one of the keys, each of the keys generating a voltage, a timing pulse generator connected to the pulse generator, a memory connected to the timing pulse generator for generating digital signals of a musical scale, digital-to-analog converter means connected to the memory for converting the digital signals into analog signals, a processor connected to the converter for selectively adding and subtracting the key-generated voltage to the analog signals, and for generating an output voltage therefrom, and a voltage-controlled oscillator connected to the processor for controlling the output voltage.

REFERENCES:
patent: 3842184 (1974-10-01), Kniepkamp et al.
patent: 3854366 (1974-12-01), Deutsch
patent: 3941024 (1976-03-01), Brand et al.
patent: 3954035 (1976-05-01), Adams

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