Optimized moving-coil loudspeaker

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

Reexamination Certificate

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Details

C381S398000, C381S403000

Reexamination Certificate

active

07856115

ABSTRACT:
An optimized moving-coil loudspeaker is described herein. The loudspeaker includes an acoustic-radiating diaphragm that is non-cylindrical shape. The diaphragm is a substantially-planar substrate having uniform density. A moving-coil assembly is coupled to the acoustic-radiating diaphragm. The assembly is configured to move back and forth in a linear fashion. As the assembly is connected to the diaphragm it causes acoustic waves to be emitted from a front surface the acoustic-radiating diaphragm. The acoustic-radiating diaphragm is not supported by a conventional basket, among other differences.

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Button, Douglas J. “Magnetic Circuit Design Methodologies for Dual-Coil Transducers.” J. Audio Eng. Soc., Jun. 2002, 427-441, vol. 50, No. 6.
International Preliminary Report on Patentability, International Application PCT/US2008/085082, published Jun. 2, 2010.

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