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Cochlear implant stimulation with variable number of electrodes

  • US 7,941,223 B2
  • Filed: 10/16/2007
  • Issued: 05/10/2011
  • Est. Priority Date: 03/08/2004
  • Status: Active Grant
First Claim
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1. A method of activating electrodes in an implanted electrode array with a stimulation signal, the method comprising:

  • for each of a plurality of defined sound signal characteristics (C) that vary over time, assigning each electrode to one of a plurality of stimulation groups (G) each having an associated group stimulation amplitude function (A), where the stimulation groups (G) and the electrodes assigned to them vary over time with the sound signal characteristics (C); and

    activating each electrode as the stimulation signal varies based on spectral components of the stimulation signal.

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