Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2007-03-13
2007-03-13
Swerdlow, Daniel (Department: 2615)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S418000
Reexamination Certificate
active
10118791
ABSTRACT:
A transducer for a hearing aid includes a housing, a relatively thin membrane having a free end suspended in the housing for vibration in response to a motor. The motor has a coil and a magnet assembly, the coil being mounted in the housing beneath the membrane; the magnet assembly being mounted in the housing coaxially with the coil and to one edge of the membrane.
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International Search Report dated Feb. 27, 2006, 5 pages.
Jenkens & Gilchrist
Sonion Nederland BV
Swerdlow Daniel
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