Loudspeaker

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

Reexamination Certificate

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Details

C381S392000, C181S171000, C181S172000

Reexamination Certificate

active

07418107

ABSTRACT:
A loudspeaker including a frame, a movable diaphragm that oscillates, and a suspension for mounting the diaphragm to the frame, where the suspension comprises a flexible surround having a substantially enclosed space where at least a portion of the flexible surround is air permeable.

REFERENCES:
patent: 2234007 (1941-03-01), Olson et al.
patent: 3684052 (1972-08-01), Sotome
patent: 5847333 (1998-12-01), D'Hoogh
patent: 5949898 (1999-09-01), Proni
patent: 6171534 (2001-01-01), Leach et al.
patent: 6351544 (2002-02-01), Noll
patent: 6460651 (2002-10-01), Sahyoun
patent: 6568503 (2003-05-01), Proni
patent: 6728389 (2004-04-01), Bruney
patent: 0 556 786 (1993-02-01), None
patent: 0 963 136 (1999-05-01), None

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