Cochlear implant sound processing method and system
First Claim
1. An auditory prosthesis device for selectively stimulating electrodes within an auditory prosthesis electrode array, comprising:
- a transducer for converting a complex acoustic sound into an electrical signal, signal processing means responsive to an electrical signal and generating a temporal pattern of stimulation pulses to selected electrodes within the electrode array, the stimulation pulses being applied to each electrode at an electrode stimulation rate, feature extraction means for deriving an estimate of at least one fundamental frequency of the electrical signal, and stimulation pulse adjustment means for adjusting the stimulation pulses in accordance with the estimated fundamental frequency.
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Abstract
An auditory prosthesis device for selectively stimulating electrodes within an auditory prosthesis electrode array, comprising a transducer (2) for converting a complex acoustic sound into an electrical signal; signal processing means (13) responsive to an electrical signal and generating a temporal pattern of stimulation pulses to selected electrodes within the electrode array, the stimulation pulses being applied to each electrode at an electrode stimulation rate; feature extraction means (14) for deriving an estimate of at least one fundamental frequency of the electrical signal; and stimulation pulse adjustment means (15) for adjusting the stimulation pulses in accordance with the estimated fundamental frequency.
70 Citations
38 Claims
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1. An auditory prosthesis device for selectively stimulating electrodes within an auditory prosthesis electrode array, comprising:
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a transducer for converting a complex acoustic sound into an electrical signal, signal processing means responsive to an electrical signal and generating a temporal pattern of stimulation pulses to selected electrodes within the electrode array, the stimulation pulses being applied to each electrode at an electrode stimulation rate, feature extraction means for deriving an estimate of at least one fundamental frequency of the electrical signal, and stimulation pulse adjustment means for adjusting the stimulation pulses in accordance with the estimated fundamental frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 35, 36, 37, 38)
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20. A method of operating an auditory prosthesis device for selectively stimulating electrodes within an auditory prothesis electrode array, the method including:
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converting a complex acoustic sound into an electrical signal;
responsive to the electrical signal, generating a temporal pattern of stimulation pulses to selected electrodes within the electrode array, the stimulation pulses being applied to each electrode at an electrode stimulation rate;
deriving an estimate of at least one fundamental frequency of the electrical signal; and
adjusting the stimulation pulses in accordance with the estimated fundamental frequency. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification