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US 10,542,350 B2Granted
Observer-based cancellation system for implantable hearing instruments
AssigneeCochlear Limited
InventorScott Allan Miller, III
Life of this patent
Estimating the term…
Abstract
A method including receiving input indicative of a parameter related to an operating environment of an implantable portion of a prosthesis and adjusting an adjustable system of the prosthesis based on the received input.
Claims43
A method, comprising:
- receiving input indicative of a parameter related to an operating environment of an implantable portion of a prosthesis;
- and
- adjusting an adjustable system of the prosthesis based on the received input.
A method, comprising:
- processing an output of a motion sensor with a first processing system;
- producing a first net signal based on an output of a microphone and the processed output of the motion sensor;
- adjusting the first processing system based on the first net signal;
- and
- after adjusting the first processing system, adjusting a second processing system based on the adjustment of the first processing system.
2 more elements
A method, comprising:
- i. receiving, at a first adaptive cancellation filter and a second adaptive cancellation filter, a microphone output signal and a motion sensor output signal;
- ii. cancelling portions of the respective microphone output signals received by the respective adaptive cancellation filters using, respectively, the first and second adaptive cancellation filters having respective filter coefficient settings to obtain respective outputs from the adaptive cancellation filters;
- iii. comparing the respective outputs from the adaptive cancellation filters;
- iv adjusting the respective filter coefficient settings of the first and second adaptive cancellation filters based on the comparison of the respective outputs;
- and
- v. repeating actions ii, iii and iv until the respective outputs from the first and second adaptive cancellation filters converge.
3 more elements
A system for reducing noise in an output signal of an implanted hearing instrument, comprising:
- an implantable microphone for receiving signals and generating a microphone output response;
- a signal processor for processing received signals and generating an output signal for actuating an auditory stimulation device;
- an observer for producing an output indicative of a current operating condition of the implantable hearing instrument;
- and
- a first cancellation filter for filtering said output signal and removing a resulting filtered response from the microphone output response to produce a first cancelled signal at least a portion of which is received by the signal processor, wherein settings of said first cancellation filter are adjusted based on the output of the observer.
2 more elements
Dependencies are inferred from the claim text.