Dual diaphragm electroacoustic transducer

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

Reexamination Certificate

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Details

C381S182000, C381S186000, C381S401000, C181S144000

Reexamination Certificate

active

07912240

ABSTRACT:
The present invention relates to dual-diaphragm electroacoustic transducers wherein a common magnetic flux path comprises first and second magnetic gaps and a magnet assembly. The invention may provide a miniature transducer with a compact magnetic flux path of improved performance. Electroacoustic transducers in accordance with the invention may comprise a small number of separate parts and provide good acoustic conversion efficiency in a miniature or compact housing.

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PCT International Search Report for International Application No. PCT/EP2005/005081, filed May 11, 2005, dated Sep. 1, 2005 (4 pages).

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