Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2007-09-13
2011-10-04
Warren, David S. (Department: 2832)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S190000, C381S191000, C381S423000
Reexamination Certificate
active
08031901
ABSTRACT:
A planar magnetic driver includes covering plates that are maintained under tension to form a buckled or curved surface, thereby providing for a larger magnetic gap, and allowing for a larger excursion of the diaphragm and extended lower frequency response. Another aspect of the driver includes a corrugated region along the periphery of the diaphragm, which provides increased internal dampening.
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Bohlender Graebener Corporation
Fenwick & West LLP
Warren David S.
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