Speaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic

Patent

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Details

381396, 381405, 381413, H04R 2500

Patent

active

058622420

ABSTRACT:
A speaker has a diaphragm of which plane shape as seen from a vibrating direction has a major axis and a minor axis, a band-shaped edge connected to the outer circumference of the diaphragm for holding so that the diaphragm may be free to vibrate, and a frame for holding the outer circumference of the edge, wherein a viscoelastic member is affixed to part of the edge and/or diaphragm.

REFERENCES:
patent: 5148492 (1992-09-01), Uzawa et al.
patent: 5664024 (1997-09-01), Furuta et al.

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