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US 2008/0077197 A1Published application
Methods and Systems for Presenting an Audio Signal to a Cochlear Implant Patient
AssigneeAdvanced Bionics AG
InventorLeonid Michael Litvak
Life of this patent
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Abstract
Methods and systems of presenting an audio signal to a cochlear implant patient include dividing the audio signal into a plurality of analysis channels, detecting an energy level within each of the analysis channels, selecting one or more of the analysis channels for presentation to the patient, synthesizing the selected analysis channels, and mapping the synthesized analysis channels to one or more stimulation channels.
Claims20
A method comprising:
- dividing an audio signal into a plurality of analysis channels;
- detecting an energy level within each of said analysis channels;
- selecting one or more of said analysis channels for presentation to a patient;
- synthesizing said selected analysis channels;
- and
- mapping said synthesized analysis channels to one or more stimulation channels;
- wherein a total number of said analysis channels is greater than a total number of said stimulation channels.
4 more elements
A cochlear implant system, comprising:
- a signal processor configured to:
- divide an audio signal into a plurality of analysis channels;
- detect an energy level within each of said analysis channels;
- select one or more of said analysis channels for presentation to a patient;
- and
- synthesize said selected analysis channels;
- and
- an implantable cochlear stimulator communicatively coupled to said signal processor and configured to apply a stimulation current during a stimulation frame to a cochlea of said patient via one or more stimulation channels in accordance with information contained within said synthesized channels;
- wherein a total number of said analysis channels is greater than a total number of said stimulation channels.
6 more elements
A signal processing unit comprising:
- a plurality of filters configured to divide an audio signal into a plurality of analysis channels;
- one or more detection stages configured to detect an energy level within each of said analysis channels;
- a selection stage configured to select one or more of said analysis channels for presentation to a patient;
- a synthesizer stage configured to synthesize said selected analysis channels;
- and
- a mapping stage configured to map said selected analysis channels to a number of stimulation channels within an implantable cochlear stimulator;
- wherein a total number of said analysis channels is greater than a total number of said stimulation channels.
4 more elements
Dependencies are inferred from the claim text.