Electrical audio signal processing systems and devices – Hearing aids – electrical – Wideband gain control
Reexamination Certificate
2006-05-09
2010-06-29
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Wideband gain control
C381S351000, C381S182000, C381S355000, C381S360000
Reexamination Certificate
active
07747032
ABSTRACT:
A transducer assembly may include a first transducer having a first front volume, a first back volume and a first port acoustically coupled to the first front volume; and a second transducer having a second front volume, a second back volume and second port acoustically coupled to the second front volume. The first front volume and the second front volume are acoustically coupled to increase the effective back volume of both the first transducer and the second transducer. An optional signal processing circuit may be used to control the output of the first transducer based upon a signal received from the second transducer.
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International Search Report for Application No. PCT/US06/017691 dated Sep. 29, 2006.
Kirchhoefer Dennis R.
Llamas-Young Evan
Zei John
Fitch Even Tabin & Flannery
Knowles Electronics LLC
Kuntz Curtis
Robinson Ryan C
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