Electrical audio signal processing systems and devices – Hearing aids – electrical – Directional
Reexamination Certificate
2008-05-05
2010-10-26
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Hearing aids, electrical
Directional
C381S023100, C381S092000, C381S315000
Reexamination Certificate
active
07822217
ABSTRACT:
Systems, devices and methods are provided for diotically presenting second-order gradient directional hearing aid signals. The present subject matter provides an improved signal-to-noise ratio, and presents a desired directional signal to each ear. One aspect is a hearing aid system. In one embodiment, the system includes a first microphone system in a first device and a second microphone system in a second device. The first microphone system has a first output signal, and the second microphone system has a second output signal. Each output signal includes a first-order directional signal. The system further includes a first receiver circuit and a second receiver circuit. The combination of the first output signal and the second output signal provides a diotic presentation of a second-order gradient signal to both the first receiver circuit and the second receiver circuit. Other aspects are provided herein.
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Bren Mark A.
Hagen Lawrence
Peterson Timothy S.
Preves David A.
Roberts Randall W.
Chin Vivian
Kurr Jason R
Micro Ear Technology Inc.
Schwegman Lundberg & Woessner, P.A.
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