Voltage controlled type electronic musical instrument

Music – Instruments

Patent

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Details

84 11, 84DIG2, 84DIG20, G10H 102, G10H 502

Patent

active

039496392

ABSTRACT:
This invention relates to a voltage controlled type electronic musical instrument comprising a keyboard section for generating a pitch determining voltage signal and a trigger signal upon key operation, a voltage controlled tone signal generating circuit including a voltage controlled oscillator, voltage controlled filter and voltage controlled amplifier for generating a tone signal in response to the pitch determining voltage signal and control wave generating circuits responsive to the trigger signal for generating control waves coupled to the voltage controlled oscillator, voltage controlled filter and voltage controlled amplifier. The pitch determining voltage signal is coupled to the voltage controlled amplifier so as to control the gain thereof, thereby decreasing the volume of musical sounds at higher frequency from that of musical sounds at lower frequency.

REFERENCES:
patent: 3250843 (1966-05-01), Jenny
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patent: 3557295 (1971-01-01), Adachi
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patent: 3609203 (1971-09-01), Adachi
patent: 3614288 (1971-10-01), Amano
patent: 3666875 (1972-05-01), Ranzato
patent: 3708603 (1973-01-01), Keagle et al.
patent: 3801721 (1974-04-01), Bunger
patent: 3819843 (1974-06-01), Okamoto
patent: 3828110 (1974-08-01), Colin
patent: 3835237 (1974-09-01), Adachi
patent: 3848092 (1974-11-01), Shamma
patent: R27983 (1974-04-01), Stearns

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