Systems for selecting one or more stimulation channels
First Claim
Patent Images
1. An implantable cochlear stimulation system, comprising:
- a signal processer configured to;
separate an acoustic signal into a multiplicity of channels,compute a probability for each channel within the multiplicity of channels,obtain a threshold corresponding to a stimulation frame,use said threshold to determine an adjusted amplitude corresponding to one or more channels within said multiplicity of channels,use said adjusted amplitudes to determine said probability corresponding to each of said one or more channels within said multiplicity of channels,provide a random number for each of said one or more channels within said multiplicity of channels, andselect a number of channels within said one or more channels for application of one or more stimulation signals during said stimulation frame; and
an array of electrodes configured to apply said one or more stimulation signals to a patient via said selected number of channels during said stimulation frame;
wherein each of said selected number of channels has a probability that is greater than said random number.
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Abstract
Implantable neural stimulation systems include an array of electrodes configured to apply one or more stimulation signals to a patient via one or more channels out of a multiplicity of channels during a stimulation frame and a signal processor configured to select the one or more channels for stimulation. The selection of the one or more channels is based on a probability associated with each channel within the multiplicity of channels.
33 Citations
16 Claims
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1. An implantable cochlear stimulation system, comprising:
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a signal processer configured to; separate an acoustic signal into a multiplicity of channels, compute a probability for each channel within the multiplicity of channels, obtain a threshold corresponding to a stimulation frame, use said threshold to determine an adjusted amplitude corresponding to one or more channels within said multiplicity of channels, use said adjusted amplitudes to determine said probability corresponding to each of said one or more channels within said multiplicity of channels, provide a random number for each of said one or more channels within said multiplicity of channels, and select a number of channels within said one or more channels for application of one or more stimulation signals during said stimulation frame; and an array of electrodes configured to apply said one or more stimulation signals to a patient via said selected number of channels during said stimulation frame; wherein each of said selected number of channels has a probability that is greater than said random number. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable cochlear stimulation system, comprising:
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a signal processor configured to separate an acoustic signal into a multiplicity of channels, compute a probability for each channel within the multiplicity of channels, choose a channel from said multiplicity of channels, obtain a random number, compare said random number to a probability corresponding to said channel, and select said channel for application of one or more stimulation signals if said probability corresponding to said channel is greater than said random number; and an array of electrodes configured to apply said one or more stimulation signals to a patient via said channel during a stimulation frame. - View Dependent Claims (13, 14, 15, 16)
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Specification