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;
the 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.
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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.
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Citations
54 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;
the 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. - 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, 33, 34, 35, 36, 37, 38)
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39. A method of manufacturing a hearing aid, comprising:
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providing 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; providing a circuit that amplifies the electronic signals; providing a receiver that converts the amplified electronic signals into amplified sound waves; and selecting parameters for a tuned resonant cavity to modify the frequency response of the incident sound waves, the parameters including at least one of the 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; and providing a tuned resonant cavity comprising the selected parameters between the microphone and the at least one external sound source. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification