Simultaneous Intracochlear Stimulation
First Claim
1. A method of simultaneously activating at least two electrodes in a multichannel electrode array, the method comprising:
- calculating pulse amplitudes of the electrodes in the multichannel array by taking into account parameters of spatial channel interaction reflecting geometric overlapping of electrical fields from each electrode, wherein calculating is based, at least in part, on place-independent impulse responses characterized by a first exponential decay constant α
at a first side of the electrode and a second exponential decay constant β
at a second side of the electrode, such that the first exponential decay constant α
is the same for each electrode in the array, and the second exponential decay constant β
is the same for each electrode in the array.
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Accused Products
Abstract
A method, system and computer product for simultaneously activating at least two electrodes in a multichannel electrode array is presented. The method includes calculating pulse amplitudes of the electrodes in the multichannel array by taking into account parameters of spatial channel interaction reflecting geometric overlapping of electrical fields from each electrode. Calculating is based, at least in part, on place-independent impulse responses characterized by a first exponential decay constant α at a first side of the electrode and a second exponential decay constant β at a second side of the electrode, such that the first exponential decay constant α is the same for each electrode in the array, and the second exponential decay constant β is the same for each electrode in the array.
35 Citations
23 Claims
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1. A method of simultaneously activating at least two electrodes in a multichannel electrode array, the method comprising:
calculating pulse amplitudes of the electrodes in the multichannel array by taking into account parameters of spatial channel interaction reflecting geometric overlapping of electrical fields from each electrode, wherein calculating is based, at least in part, on place-independent impulse responses characterized by a first exponential decay constant α
at a first side of the electrode and a second exponential decay constant β
at a second side of the electrode, such that the first exponential decay constant α
is the same for each electrode in the array, and the second exponential decay constant β
is the same for each electrode in the array.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A cochlear implant system comprising:
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a multi-channel electrode array including at least two electrodes; and a stimulator that calculates amplitudes of electrode stimulation signals associated with the electrodes as a function of spatial channel interaction reflecting geometric overlapping of electrical fields from each electrode, wherein calculating is based, at least in part, on place-independent impulse responses characterized by a first exponential decay constant α
at a first side of the electrode and a second exponential decay constant β
at a second side of the electrode, such that the first exponential decay constant α
is the same for each electrode in the array, and the second exponential decay constant β
is the same for each electrode in the array. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer program product for use on a computer system for stimulating electrodes in a multichannel electrode array, each channel associated with an electrode in the array, the computer program product comprising a computer usable medium having computer readable program code thereon, the computer readable program code including:
program code for calculating amplitudes of electrode stimulation signals associated with the electrodes in the electrode array as a function of spatial channel interaction reflecting geometric overlapping of electrical fields from each electrode, wherein calculating is based, at least in part, on place-independent impulse responses characterized by a first exponential decay constant α
at a first side of the electrode and a second exponential decay constant β
at a second side of the electrode, such that the first exponential decay constant α
is the same for each electrode in the array, and the second exponential decay constant β
is the same for each electrode in the array.- View Dependent Claims (18, 19, 20, 21, 22, 23)
Specification