Med-el Elektromedizinische Geraete Gmbh

Martin J Kerber

Martin Zimmerling

Clemens M Zierhofer

Erwin Hochmair

Werner Lindenthaler

Ingeborg Hochmair

Peter Nopp

Marcus Schmidt

Martin Stoffaneller

Hansjörg Schoesser

A noise cancelling system is described for a in a patient implantable hearing implant system. An implantable microphone senses a sound signal present at the microphone that includes a sound source component from a sound source external to the patient, and a noise component from internal bone conduction. At least one implantable noise sensing element is located near the microphone to sense the noise component. A filter is controlled by an adaptive algorithm responsive to transform the noise component and outputs a transducer control signal. A bone conduction transducer receives the transducer control signal and generates a corresponding mechanical vibration signal to the skull bone. The adaptive algorithm controls the filter so that the mechanical vibration signal of the bone conduction transducer offsets the noise component sensed by the at least one noise sensing element so as to minimize the noise component sensed by the implantable microphone.

Adaptive noise cancelling of bone conducted noise in the mechanical domain

An implant includes a humidity sensor for generating a signal indicative of humidity within the implant. A controller within the implant receives the signal indicative of humidity, and controls the implant based on the signal indicative of humidity.

Implant sensor and control

A signal processing arrangement for a cochlear implant system is described. A sensing microphone senses an acoustic signal to generate a corresponding electrical sound signal. An information detection circuit performs spectral analysis on the sound signal to identify the presence of speech information. A sound signal processing circuit generates an implant communications signal for the cochlear implant system based on the sound signal, and has an energy saving operational mode wherein the implant communications signal is generated only when the information detection circuit identifies that speech information is present in the sound signal.

Energy saving silent mode for hearing implant systems

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Weer, Austria

Martin J Kerber