US 4,357,850 AGranted

Tone generator system for electronic musical instruments

OwnerReinhard Franz, Wilfried Dittmarinventors

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Abstract

A tone generator system for electronic musical instruments includes a voltage-regulated, high-frequency oscillator. The output of the oscillator is connected with the inputs of first and second 12-tone divider circuits having outputs for transmission of full octaves of tone signals. The connection between the output of the oscillator and the input of one of the divider circuits contains circuitry which intercepts each n.sup.th signal of the series of signals transmitted by the oscillator so that the one divider circuit is out of tune with the other divider circuit. The number n can be varied by a battery of switches and can be as low as 2 or higher than 128. An auxiliary signal dividing circuit can be connected between the output of the oscillator and the input of the other divider circuit.

Claims13

Dependent claims

A tone generator system for electronic musical instruments comprising:

(a) a plurality of dividing circuits arranged to transmit tone signals;
(b) a generator for generating signals at a predetermined frequency;
(c) first coupling means coupling said generator to one of said dividing circuits, said first coupling means including an auxiliary divider, and a switch for selectively coupling said generator to said one dividing circuit via a path through said auxiliary divider and a path which is clear of said auxiliary divider between said generator and said one dividing circuit;
and
(d) second coupling means coupling said generator to another of said dividing circuits, said second coupling means including a signal intercepting circuit, and an adjustable selector circuit operative to cause interception of a signal by said intercepting circuit in response to receipt of a predetermined number of signals from said generator.

2 more elements

Dependencies are inferred from the claim text.