Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With electrostatic microphone
Patent
1983-12-30
1986-02-04
Birmiel, Howard A.
Electrical audio signal processing systems and devices
Circuitry combined with specific type microphone or loudspeaker
With electrostatic microphone
381 88, 381 91, 381122, 84DIG24, 310328, 310334, H04R 104, H04R 146
Patent
active
045690774
ABSTRACT:
A transducer rendered operative by a battery voltage source is mounted on and closely spaced from a sonic radiating surface by a sonic coupling body to which a housing is secured in enclosing relation to both the transducer and the battery source. Openings in the housing expose a volume control knob and an output signal jack through which a signal cable connects the transducer to a remotely located amplifier.
REFERENCES:
patent: 3305638 (1967-02-01), Teachout
patent: 3496297 (1970-02-01), Brumberger
patent: 3604853 (1971-09-01), Piess
patent: 4061934 (1977-12-01), Rowe
patent: 4160401 (1979-07-01), Tomioka
Birmiel Howard A.
Jacobson Harvey B.
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