Microphone with molded block amplifier electrostatic

Details Microphone with molded block amplifier electrostatic Microphone with molded block amplifier electrostatic

1977-12-01

1979-10-09

Stellar, George G.

H04R 1904

Patent

active

041707214

ABSTRACT:
A condenser microphone having an integrally molded unit with an active electronic element and a plurality of leads thereto encapsulated therein, and a backplate electrically coupled thereto via an axially adaptable connection providing improved manufacturing capabilities, and in which unidirectional and non-directional capabilities are incorporated without envelope modification.

REFERENCES:
patent: RE28420 (1975-05-01), Murphy
patent: 2910539 (1959-10-01), Hartsfield
patent: 3300585 (1967-01-01), Reedyk et al.
patent: 3812575 (1974-05-01), Hedman
patent: 3816671 (1974-06-01), Fraim et al.
patent: 3864531 (1975-02-01), Watson
patent: 3946422 (1976-03-01), Yagi et al.
patent: 4014091 (1977-03-01), Kodera et al.
AWA Technical Review, vol. 15, No. 2, Dec. 1973, pp. 53-64, R. E. Collins, "Application of Electrets to Electro-Acoustic Transducers".
Bell Laboratories Record, Aug. 1969, vol. 47, No. 7, pp. 245-248, "The Foil-Electret Microphone", G. M. Sessler et al.

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