| US 7,515,966 B1 | ||
| Sound processing and stimulation systems and methods for use with cochlear implant devices | ||
| Leonid M. Litvak, Los Angeles, Calif. (US); Lakshmi N. Mishra, Valencia, Calif. (US); Gene Y. Fridman, Santa Clarita, Calif. (US); and Lee F. Hartley, Calgary (Canada) | ||
| Assigned to Advanced Bionics, LLC, Valencia, Calif. (US) | ||
| Filed on Mar. 14, 2005, as Appl. No. 11/80,214. | ||
| Int. Cl. A61N 1/00 (2006.01) | ||
| U.S. Cl. 607—57 | 36 Claims |
| 1. A method for stimulating a cochlea using a plurality of electrodes based on a signal representative of sound, the method
comprising:
computing a frequency spectrum of the signal representative of sound;
arranging the frequency spectrum into a plurality of channels such that each channel corresponds to a range of frequencies
that lie within the frequency spectrum;
computing a frequency at which a spectral peak is located within the range of frequencies that corresponds to a channel of
the plurality of channels; and
stimulating a subset of the plurality of electrodes with a stream of pulse sets, the pulses in each set being simultaneously
applied to the electrodes in the subset so as to stimulate a virtual electrode positioned at a location on the cochlea, the
location on the cochlea corresponding to the frequency at which the spectral peak is located.
|