Sound processor for cochlear implants

Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems

Reexamination Certificate

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Reexamination Certificate

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07010354

ABSTRACT:
An improved sound processor for a cochlear implant having electrodes for stimulating the auditory nerve, including means for receiving sounds, means for processing the sounds and converting them to electrical stimulation signals for application to the electrodes of the cochlear implant for stimulation of the auditory nerve, said sound processing means including means for generating electrical signals to be applied to the basal electrodes having different predetermined rates of stimulation and the implant having basal electrodes and apical electrodes and the means for generating electrical signals to be applied to the apical electrodes have a different rate of stimulation, the electrical signals to be applied to the basal electrodes having a higher rate of stimulation than the electrical signals to be applied to the apical electrodes.

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Loizou, “Introduction to cochlear implants,” Sep. 1998, IEEE Signal Processing Magazine, pp. 101-130.
A Multipeak Feature Extraction Coding Strategy for a Multi Channel Cochlear Implant, Dawn Burton Koch, PhD, et. al, 03/01/920, No. 3, pp. 28-29 and 32.
“Melody Recognition and Musical Interval Perception by Deaf Subjects Stimulated With Electrical Pulse Trains Through Single Cochlear Implant Electrodes”, Journal of the Acoustical Society of America vol. 98, No. 2 pt 1 issued Aug. 1995, pp. 886-895.
“Electrode Ranking of “Place Pitch” and Speech Recognition in Electrical Hearing”, Journal of the Acoustical Society of America, vol. 98, No. 4 issued 1995, pp. 1987-1999.

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