Audio transducer improvements

Details Audio transducer improvements Audio transducer improvements

1991-07-12

1993-07-20

Ng, Jin F.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381194, 381199, H04R 2500

Patent

active

052300218

ABSTRACT:
An audio transducer having a pair of magnets supported to provide a magnet gap within which a flexible diaphragm supporting an electrical coil is received. The diaphragm is formed of a pair of flexible cylindrical webs joined at their centers to support the coil within the magnet gap. The diaphragm is provided with a row of perforations on either side of the gap to provide flexibility and is aligned centrally within the gap by flexible foam strips attaching the magnets to the diaphragm.

REFERENCES:
patent: 3686446 (1972-08-01), Manger
patent: 3978353 (1976-08-01), Kinoshita
patent: 4327257 (1982-04-01), Schwartz
patent: 4472605 (1984-09-01), Klein
patent: 4584439 (1986-04-01), Paddock
patent: 4590333 (1986-05-01), Strohbeen
patent: 4897877 (1990-01-01), Tetzlaff
patent: 4903308 (1990-02-01), Paddock et al.

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