Patent ID: 7251530
Filing Date: 2007-07-31
Classification: A61N

Abstract:
1. A method for correcting pitch allocation in a cochlear implant system comprising: generating a reference signal; applying the reference signal to an appropriate electrode of the cochlear implant system; generating a probe signal having a fixed interval relationship with the reference signal; applying the probe signal to an appropriate electrode of the cochlear implant system; shifting the location where the probe signal or reference signal is applied until the two signals match; and using the location at which the probe signal is applied and the location at which the reference signal is applied when the two signals match to generate a frequency map, said frequency map being usable by the cochlear implant system to thereafter apply stimulus signals to correct locations within the cochlea as a function of pitch; wherein shifting the location where the probe signal or reference signal is applied comprises using current steering, and wherein generating a probe signal having a fixed interval relationship with the reference signal comprises generating the probe signal to have an octave relationship with the reference signal.