In-the-ear hearing aid with directional microphone system
First Claim
1. An apparatus for use as an in-the-ear hearing aid, the apparatus comprising:
- a housing having a shell and a face plate, wherein the shell is molded to custom fit a hearing aid user'"'"'s ear;
a first non-directional microphone system having a first inlet opening in the face plate for receiving sound and having a first output signal representative of the sound received;
a second non-directional microphone system having a second inlet opening in the face plate for receiving sound and having a second output signal representative of the sound received; and
switch means having an operator extending through the housing for switching the in-the-ear hearing aid between a non-directional mode and a directional mode.
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Accused Products
Abstract
Apparatus for use as an in-the-ear hearing aid. The apparatus includes a housing having a shell and a face plate, wherein the shell is molded to custom fit a hearing aid user'"'"'s ear. A first non-directional microphone system is included having a first output signal representative of the sound received. A second non-directional microphone system is included having a second output signal representative of the sound received. A switch mechanism is included having an operator extending through the housing for switching the in-the-ear hearing aid between a non-directional mode and a directional mode. In the directional mode, the microphone system is adjustable between a cardioid and super cardioid polar output pattern.
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Citations
21 Claims
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1. An apparatus for use as an in-the-ear hearing aid, the apparatus comprising:
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a housing having a shell and a face plate, wherein the shell is molded to custom fit a hearing aid user'"'"'s ear; a first non-directional microphone system having a first inlet opening in the face plate for receiving sound and having a first output signal representative of the sound received; a second non-directional microphone system having a second inlet opening in the face plate for receiving sound and having a second output signal representative of the sound received; and switch means having an operator extending through the housing for switching the in-the-ear hearing aid between a non-directional mode and a directional mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for use as an in-the-ear hearing aid, the apparatus comprising:
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a housing having a shell and a face plate, wherein the shell is molded to custom fit a hearing aid user'"'"'s ear; a first non-directional microphone system having a first inlet opening in the face Plate for receiving sound and having a first output signal representative of the sound received; a second non-directional microphone system having a second inlet opening in the face plate for receiving sound and having a second output signal representative of the sound received; switch means having an operator extending through the housing for switching the in-the-ear hearing aid between a non-directional mode and a directional mode, wherein the switch has an open position and a closed position, and wherein, when the switch is in the closed position, the in-the-ear hearing aid operates in a directional mode; and means for summing, selectively coupled to the first non-directional microphone system and the second non-directional microphone system, having a summed output signal representative of the sum of the first output signal and the second output signal; wherein, when the hearing aid is in the directional mode, the output signal has a polar directivity pattern representative of the summed output signal; and
wherein the means for summing further comprises means for adjusting the polar directivity pattern of the summed output signal between a cardioid polar directivity pattern and a super cardioid polar directivity pattern. - View Dependent Claims (9, 10, 11, 12)
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13. A microphone system for use with an in-the-ear hearing aid, the system comprising:
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a first non-directional microphone system having a first inlet opening for receiving sound and having a first output signal representative of the sound received; a second non-directional microphone system having a second inlet opening for receiving sound and having a second output signal representative of the sound received; and means for electrically coupling the first non-directional microphone system to the second non-directional microphone system for electrically switching the in-the-ear hearing aid between a non-directional mode and a directional mode. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification