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Hearing aid having a digitally constructed calculating unit employing fuzzy logic

  • US 6,005,954 A
  • Filed: 05/28/1997
  • Issued: 12/21/1999
  • Est. Priority Date: 06/21/1996
  • Status: Expired due to Term
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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