Cochlear Limited

Oticon Medical A/s

Régis Pierquin

Bradford Backus

Martin Besnard

Julien Venet

Philippe Monier

According to a first aspect, a sound processor unit of a cochlear implant system is disclosed. The sound processor unit comprises an electric circuit, which comprises a sound processor antenna with a sound processor antenna capacitance and a sound processor antenna inductance, wherein the sound processor antenna capacitance and the sound processor antenna inductance are connected in series and form a resonant circuit. An improved cochlear implant system is provided in that the electric circuit of the sound processor unit further comprises a switching element connected in series with the sound processor antenna capacitance and the sound processor antenna inductance, and the electric circuit of the sound processor unit further comprises an inductive element connected in parallel with the switching element, wherein when the switching element is in a closed state, the inductive element is in a short-circuited state and the sound processor antenna has a first resonant frequency, and when the switching element is in an open state, the inductive element is in a non-short-circuited state and the sound processor antenna has a second resonant frequency which differs from the first resonant frequency.

Cochlear implant system with antenna detection, frequency switching and/or frequency tuning

An implantable hearing aid system is disclosed. According to one or more of the mentioned aspects, the implantable hearing aid system comprises a charger unit which includes a coil unit having a first resonance frequency, a hearing aid and an implantable component. The hearing aid includes a rechargeable battery, an inductive coil arrangement having a second resonance frequency configured to form an inductive charging link with the coil unit to receive power signals from the charger unit. The implantable component includes an implantable coil, wherein the inductive coil arrangement may further be configured to form a transcutaneous link with the implantable coil to transmit at least one of data and power to the implantable component.

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Vallauris, France

Régis Pierquin