Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2011-03-22
2011-03-22
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
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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Madaffari Peter L.
Van Reeuwijk Sietse Jacob
Eason Matthew
Kuntz Curtis
Nixon & Peabody LLP
Sonion Nederland B.V.
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