Electrodynamic transducer including inset

Details Electrodynamic transducer including inset Electrodynamic transducer including inset

1990-10-09

1992-10-13

Dwyer, James L.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381188, 381192, 381199, 381200, 379428, 379433, 379436, 379437, H04R 2500, H04M 100

Patent

active

051557738

ABSTRACT:
An electromagnetic transducer has a moving coil, a diaphragm and a magnet system enclosed within protecting covers. It includes an inset placed between the magnet system and the front cover. The inset is made of a non-magnetic, electrically insulating material and is provided with an aperture.

REFERENCES:
patent: 2404877 (1946-07-01), Horlacher
patent: 2423014 (1947-06-01), Gilman
patent: 3539735 (1970-11-01), Marchard
patent: 4399334 (1983-08-01), Kakiuchi et al.
patent: 4418247 (1983-11-01), Hansen
patent: 4451928 (1984-05-01), Murayama
patent: 4529846 (1985-07-01), Freeman et al.
patent: 4796288 (1989-01-01), Busche et al.
patent: 4843628 (1989-06-01), Hofer
patent: 4984268 (1991-01-01), Brown et al.
patent: 5018206 (1991-05-01), Suzuki
patent: 5058154 (1991-10-01), Andersen
Tremawe, "Audio Cyclopedia", 1969, p. 153.

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