Electronic musical instrument capable of generating tone signals

Details Electronic musical instrument capable of generating tone signals Electronic musical instrument capable of generating tone signals

1974-11-01

1976-04-27

Hix, L. T.

Music

Instruments

84 113, 84 119, 84 127, 84DIG8, 84DIG9, 84DIG20, G10H 102, G10H 502

Patent

active

039526240

ABSTRACT:
An electronic musical instrument comprising a voltage controlled oscillator, a voltage controlled filter, a voltage controlled amplifier and envelope generators. An output envelope of the envelope generator has various parameters such as rise time and decay time or times. The envelope generator is of the voltage controlled type so that the parameters of the output envelope of the envelope generator are controllable in response to parameter controlling voltages from a parameter controlling voltage generator. In an attempt to enhance performance effects a switch circuit is provided, in accordance with the invention, to interchange between a rise time controlling voltage and a decay time controlling voltage which are both coupled from the parameter controlling voltage generator to the envelope generator.

REFERENCES:
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patent: 3571481 (1971-03-01), Adachi
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patent: 3786166 (1974-01-01), Mieda
patent: 3819843 (1974-06-01), Okamoto
patent: 3828108 (1974-08-01), Thompson
patent: 3828110 (1974-08-01), Colin
patent: 3881387 (1975-05-01), Kawakami
patent: 3886834 (1975-06-01), Okamoto
patent: 3886836 (1975-06-01), Hiyoshi
patent: 3897709 (1975-08-01), Hiyoshi et al.
patent: 3902392 (1975-09-01), Nagahama
patent: 3902396 (1975-09-01), Hiyoshi
patent: R27983 (1974-04-01), Stearns

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