Apparatus for processing tone signals

Details Apparatus for processing tone signals Apparatus for processing tone signals

1977-02-14

1978-06-27

Dobeck, B.

Music

Instruments

84 12, G10H 102

Patent

active

040967786

ABSTRACT:
Apparatus for producing vibrato has several analog shift registers with at least 2.sup.9 stages whose inputs receive tone signals from an electronic musical device such as an organ or guitar and are connected to each other. The outputs of the shift registers are connected to a common amplifier. Each shift register receives tone signal transporting pulses from a discrete voltage-controlled high-frequency oscillator, and the inputs of the high-frequency oscillators receive control signals from discrete voltage-controlled low-frequency oscillators whose outputs transmit variable-frequency signals. The output signals of the low-frequency oscillators have different frequencies and are out of phase with respect to each other.

REFERENCES:
patent: 2835814 (1958-05-01), Dorf
patent: 3524376 (1970-08-01), Heytow
patent: 4031795 (1977-06-01), Bunger
patent: 4044643 (1977-08-01), Chase

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