Patent ID: 9566433
Date: 2017-02-14
CPC Classifications: A61N,H04R

Claim:
1. A cochlear implant having an electrode array including a plurality of electrodes forming electrode channels, the electrode array being configured to be implanted in a particular recipient's cochlea, wherein said implant is configured to provide stimulation of one or more discrete stimulation regions of the particular recipient's cochlea via application of one or more stimulating signals and one or more limiting signals simultaneously applied via the electrode channels, such that the one or more stimulating signals and the one or more limiting signals interfere with one another, wherein the one or more limiting signals have an opposite polarity as the one or more stimulating signals, the interference defining said one or more discrete stimulation regions; and wherein the cochlear implant is configured such that said one or more stimulating signals and said one or more limiting signals are based upon transimpedance measurements among electrode channels of the cochlear implant as implanted in the particular recipient, said transimpedance measurements representing specific current spread functions of the particular recipient.