Moving-coil planar speaker

Details Moving-coil planar speaker Moving-coil planar speaker

2008-05-23

2011-12-27

Garber, Charles (Department: 2812)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C181S172000, C181S171000

Reexamination Certificate

active

08085971

ABSTRACT:
The planar speaker contains a frame, a diaphragm, a driver, a surround, and a number of flexible suspension elements. The diaphragm is suspended in a front opening of the frame by the surround. The driver is positioned at the center of the frame and a voice coil of the driver is attached to a back surface of the diaphragm. Two beams are arranged in parallel between two opposing longer wall segments of the frame on either side of the driver. The suspension elements are supported by the two beams, respectively, and attached to a back surface of the diaphragm. The symmetric deformation of the diaphragm along its longer side is thereby constrained by the suspension elements and the deformations at the two end zones of the diaphragm vibrating at a phase opposite to that of the center of the diaphragm would be suppressed.

REFERENCES:
patent: 2009/0026007 (2009-01-01), Corynen

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