Determining stimulation signals for neural stimulation
AssigneeCochlear Limited
InventorsMatthijs Killian, Bas Dijk, Andreas Buechner, Joerg Pesch, Marc Majoral, John Parker, James Patrick, Ernst Von Wallenberg
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Abstract
An embodiment of the present invention takes masking effects into consideration when determining stimulation signals for neural stimulation. These masking effects may be modeled using user-specific models determined by taking measurements for an implant system of an implant recipient. Or, the model may correspond to a group of individuals sharing a common characteristic or the population as a whole. These models may be, for example, psycho-physical models.
Claims20
A method of providing neural stimulation to a recipient, comprising:
- receiving an acoustical signal;
- determining a set of stimulation signals based on the received acoustical signal, comprising:
- determining a first stimulation signal based on a perceptual power of the first stimulation signal;
- and
- determining at least one other stimulation signal based on a perceptual power of the at least one other stimulation signal using information indicative of a masking effect of the first stimulation signal on the at least one other stimulation signal;
- and
- applying stimuli to a recipient using the determined stimulation signals.
A system for neural stimulation, comprising:
- a microphone capable of receiving an acoustical signal;
- a speech processing unit capable of determining a set of stimulation signals based on the received acoustical signal;
- and
- an implant capable of applying stimuli to a recipient using the determined stimulation signals;
- wherein the speech processing unit in determining the set of stimulation signal is further capable of determining a first stimulation signal based on a perceptual power of the first stimulation signal, and determining at least one other stimulation signal based on a perceptual power of the at least one other stimulation signal using information indicative of a masking effect of the first stimulation signal on the at least one other stimulation signal.
A system for neural stimulation, comprising:
- means for receiving an acoustical signal;
- means for determining a set of stimulation signals based on the received acoustical signal;
- and
- means for applying stimuli to a recipient using the determined stimulation signals;
- wherein the means for determining the set of stimulation signals, comprises:
- means for determining a first stimulation signal based on a perceptual power of the first stimulation signal;
- and
- means for determining at least one other stimulation signal based on a perceptual power of the at least one other stimulation signal using information indicative of a masking effect of the first stimulation signal on the at least one other stimulation signal.
Dependencies are inferred from the claim text.