Membrane type electro-acoustic transducer

Details Membrane type electro-acoustic transducer Membrane type electro-acoustic transducer

1979-08-02

1981-06-30

Brown, Thomas W.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

1791155PV, 181166, H04R 726

Patent

active

042764521

ABSTRACT:
In an electro-acoustic transducer having a magnetic circuit and a vibrative member disposed in an air gap formed in the magnetic circuit, the vibrative member having a frame with an opening, a membrane mounted on the frame, an acoustic transparent member mounted on the frame so as to define a space between the membrane and the acoustic transparent member, and an acoustic damping material disposed in the space.

REFERENCES:
patent: 3873784 (1975-03-01), Doschek
patent: 3997739 (1976-12-01), Kishikawa et al.
patent: 4037061 (1977-07-01), von Recklinghausen
"Magneplanar Tympani," Audio Research Corporation Advertisement, Audio, Aug. 1974, p. 64.

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