Integrated telecoil amplifier with signal processing
3 Assignments
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Accused Products
Abstract
The invention concerns a method of receiving and processing both audio and non-audio signals for use in a hearing aid or other listening device comprising converting electromagnetic radiation to electrical signals, amplifying said electrical signals to produce amplified signals, and filtering the amplified signals in an audio frequency range. The invention extends to a novel integrated amplified telecoil system for carrying out the method.
41 Citations
49 Claims
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28. A hearing aid, comprising:
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a microphone for converting sound into a first electrical output;
a telecoil for producing a second electrical output in response to being exposed to an electromagnetic field, said second electrical output including audio frequency signals and non-audio frequency signals; and
an integrated circuit for filtering said audio frequency signals from said non-audio frequency signals. - View Dependent Claims (29, 30, 31)
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32. An integrated amplified telecoil system for use in a hearing aid, comprising:
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a telecoil which produces an electrical output signal in response to electromagnetic radiation;
a first amplifier having an input coupled to said telecoil and a first amplifier output producing a first amplified signal;
a first filter having a selected pass band in an audio frequency range and having an input coupled to said first amplifier output and a first filter output for producing a first filtered signal; and
wherein said first amplifier and said first filter comprising microcircuits that are integratable in a hearing aid housing. - View Dependent Claims (33, 34, 35, 36, 37)
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38. A method of operating a hearing aid, comprising:
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converting electromagnetic radiation to electrical signals;
amplifying said electrical signals to produce first amplified signals; and
filtering said first amplified signals in an audio frequency range to produce first filtered signals, wherein said amplifying and said filtering are performed by microcircuits integrated in a hearing aid housing. - View Dependent Claims (39, 40, 41, 42, 43)
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Specification