Flat speaker

Details Flat speaker Flat speaker

2011-03-22

2011-03-22

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S397000, C381S431000

Reexamination Certificate

active

07912239

ABSTRACT:
A flat speaker comprising a vibrating plate including a spiral voice coil, a lead portion extracted from the vice coil and reinforced by the reinforcing member, and an electric supply line; an edge portion supporting the vibrating plate; and a yoke, supporting the edge portion, on which the permanent magnet arranged to face the voice coil. The flat speaker1of the invention includes a vibrating membrane2of an insulating base film3with a spiral or meandering voice coil4formed on one or both faces thereof, a permanent magnet5arranged on corresponding location facing the voice coil4; and a yoke6on which the permanent magnet5is arranged. The vibrating membrane2is avoided from hitting the permanent magnet by providing a perforated sheet on the back face of the yoke to control acoustic resistance.

REFERENCES:
patent: 4376233 (1983-03-01), Kamon et al.
patent: 7283636 (2007-10-01), Nishimura et al.
patent: 2001/0048256 (2001-12-01), Miyazaki et al.
patent: 2005/0152577 (2005-07-01), Nishimura et al.
patent: 6-98396 (1994-04-01), None
patent: 6-38400 (1994-05-01), None
patent: 2001-333493 (2001-11-01), None
patent: 2002-159082 (2002-05-01), None
patent: 2002159082 (2002-05-01), None
patent: 2003-284187 (2003-10-01), None
patent: WO99/03304 (1999-01-01), None
patent: WO 03/073787 (2003-09-01), None

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