Hearing aid with tuned microphone cavity
First Claim
1. A hearing aid, comprising:
- a microphone that receives incident sound waves from one or more sources external to the hearing aid, and converts the sound waves into electronic signals;
a circuit that amplifies the electronic signals;
a receiver that converts the amplified electronic signals into amplified sound waves; and
a tuned resonant cavity between the microphone and the at least one external sound source, at least one of the following parameters of the tuned resonant cavity being selected to modify the frequency response of the incident sound waves before the sound waves are received by the microphone;
a geometry of one or more openings through which sound waves enter the cavity, the geometry of the cavity, and the geometry of one or more openings through which sound waves exit the cavity, the tuned resonant cavity modifying the frequency response of the incident sound waves by increasing the amplitudes of higher frequency sounds relative to lower frequency sounds within the incident sound waves.
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Accused Products
Abstract
A hearing aid comprises a microphone that receives incident sound waves from one or more sources external to the hearing aid, and converts the sound waves into electronic signals; a circuit that amplifies the electronic signals; a receiver that converts the amplified electronic signals into amplified sound waves; and a tuned resonant cavity between the microphone and the at least one external sound source. At least one parameter of the tuned resonant cavity is selected to modify the frequency response of the incident sound waves that are received by the microphone. In particular, the geometry of one or more openings through which sound waves enter the chamber, the geometry of the chamber itself, and/or the geometry of one or more openings through which sound waves exit the chamber, are selected to condition the incident sound waves by modifying the frequency response of the audio signal prior to the signal being received at the microphone.
122 Citations
32 Claims
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1. A hearing aid, comprising:
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a microphone that receives incident sound waves from one or more sources external to the hearing aid, and converts the sound waves into electronic signals; a circuit that amplifies the electronic signals; a receiver that converts the amplified electronic signals into amplified sound waves; and a tuned resonant cavity between the microphone and the at least one external sound source, at least one of the following parameters of the tuned resonant cavity being selected to modify the frequency response of the incident sound waves before the sound waves are received by the microphone;
a geometry of one or more openings through which sound waves enter the cavity, the geometry of the cavity, and the geometry of one or more openings through which sound waves exit the cavity, the tuned resonant cavity modifying the frequency response of the incident sound waves by increasing the amplitudes of higher frequency sounds relative to lower frequency sounds within the incident sound waves. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification
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- Resources
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Current AssigneeK/S HIMPP
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Original AssigneeSongbird Hearing, Inc.
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InventorsMohammed, Hassan A., Sjursen, Walter P., DeSalvo, Michael
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Primary Examiner(s)Ni; Suhan
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Application NumberUS11/343,906Publication NumberTime in Patent Office1,625 DaysField of Search381/23.1, 381322-324, 381327-328, 381/330US Class Current381/328CPC Class CodesH04R 25/48 using constructional means ...
