Hearing aid having a digitally constructed calculating unit employing fuzzy logic
First Claim
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1. A hearing aid comprising:
- an input transducer, which receives an input signal, and an output transducer, said input transducer and said output transducer having a signal path therebetween traversed by said input signal;
amplifier and transmission means connected in said signal path for modifying said input signal, said amplifier and transmission means containing at least one adjustable circuit component which acts on said input signal, and said amplifier and transmission means having a signal tap at which a tapped signal is present; and
digitally constructed calculating means, connected to said signal tap, for generating a control signal dependent on said tapped signal by implementing a plurality of fuzzy logic functions, including a plurality of algorithm steps, incorporating said tapped signal, and for supplying said control signal to said at least one component in said amplifier and transmission means for modifying said input signal dependent on said tapped signal said calculation means comprising a control module, at least one memory and a plurality of calculating modules equal in number to said plurality of algorithm steps, connected to said control module to said at least one memory, said algorithm steps being respectively executed in said calculating modules in an adjustable sequence controlled by said control module.
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Abstract
A hearing aid has an input transistor, an amplifier and transmission circuit, an output transducer and a calculating unit that realizes fuzzy logic functions. The calculating unit responds to a tap signal taken at the amplifier and transmission circuit and supplies an event signal that is supplied to the amplifier and transmission circuit and influences an output signal emitted thereby. At least the calculating unit is implemented in digital circuit technology. Such a hearing aid can be manufactured with little development and circuit outlay, operates reliably and enables an optimum matching to the specific requirements of the hearing aid user.
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Citations
10 Claims
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1. A hearing aid comprising:
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an input transducer, which receives an input signal, and an output transducer, said input transducer and said output transducer having a signal path therebetween traversed by said input signal; amplifier and transmission means connected in said signal path for modifying said input signal, said amplifier and transmission means containing at least one adjustable circuit component which acts on said input signal, and said amplifier and transmission means having a signal tap at which a tapped signal is present; and digitally constructed calculating means, connected to said signal tap, for generating a control signal dependent on said tapped signal by implementing a plurality of fuzzy logic functions, including a plurality of algorithm steps, incorporating said tapped signal, and for supplying said control signal to said at least one component in said amplifier and transmission means for modifying said input signal dependent on said tapped signal said calculation means comprising a control module, at least one memory and a plurality of calculating modules equal in number to said plurality of algorithm steps, connected to said control module to said at least one memory, said algorithm steps being respectively executed in said calculating modules in an adjustable sequence controlled by said control module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification