Miniature transducer

Details Miniature transducer Miniature transducer

1998-03-30

1999-09-28

Tran, Sinh

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381328, 381418, 381200, H04R 2500

Patent

active

059600934

ABSTRACT:
A miniature transducer such as for an in-the-canal hearing aid, is disclosed. The transducer comprises a housing formed of a top cup joined to a bottom cup and defines an interior and an exterior. The bottom cup includes a base surface and a plurality of interconnected walls. The transducer further comprises a motor including a coil, a stack and an armature disposed substantially within the bottom cup. The housing includes an opening and a portion of the stack extends outwardly through the opening. Because the stack extends outwardly through the opening, the overall thickness of the transducer is reduced.

REFERENCES:
patent: 3251954 (1966-05-01), Carlson
patent: 3515818 (1970-06-01), Tibbetts
patent: 5068901 (1991-11-01), Carlson
patent: 5193116 (1993-03-01), Mostardo
patent: 5222050 (1993-06-01), Marren et al.

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