168 results about "Auditory prosthesis" patented technology

An auditory prosthesis (30) comprising a microphone (27) for receiving the sound and producing a microphone signal responding to the received sound, an output device for providing audio signals in a form receivable by a user of the prosthesis (30), a sound processing unit (33) operable to receive the microphone signal and carry out a processing operation on the microphone signal to produce an output signal in a form suitable to operate the output device, wherein the sound processing unit (33) is operable in a first mode in which the processing operation comprises at least one variable processing factor which is adjustable by a user to a setting which causes the output signal of the sound processing unit (33) to be adjusted according to the preference of the user for the characteristics of the current acoustic environment.

A cochlear prosthesis comprises multiple electrodes for stimulating the cochlea. A received sound signal is filtered into frequency channels, and from a subset of the frequency channels pulsatile stimuli are generated to be applied by the electrodes. A modulating signal is also obtained from the received sound signal. High rate stimuli modulated by the modulating signal are generated and applied by at least one of the electrodes.

A sound processing method for auditory prostheses, such as cochlear implants, which is adapted to improve the perception of loudness by users, and to improve speech perception. The overall contribution of stimuli to simulated loudness is compared with an estimate of acoustic loudness for a normally hearing listener based on the input sound signal. A weighting is applied to the filter channels to emphasize those frequencies which are most important to speech perception for normal hearing listeners when selecting channels as a basis for stimulation.

A speech processor unit (12) for a cochlear implant system. The speech processor unit (12) comprises a signal processor for processing incoming auditory signals and for forwarding processed signals to an implanted component (18) of the system, a monitoring means for monitoring a predetermined parameter, and a controller, controlled by the signal processor, for placing the unit in an idle state in the absence of the parameter. The predetermined parameter can comprise the presence or absence of the implanted receiver antenna coil (22) relative to the external antenna coil (16). The invention allows the speech processor unit (12) to be supplied without a physical on and off switch.

A hearing prosthesis, the hearing prosthesis including a plurality of sound capture devices and a determinator configured to generate a parameter indicative of an orientation of the plurality of sound capture devices relative to a reference, wherein the hearing prosthesis is configured to adjust a direction of focus of the hearing prosthesis based on at least the parameter.

The invention provides a tuned transmitter coil for transcutaneous transmission of power and information from an external component of an auditory prosthesis to an implanted receiver. A shield is provided in order to reduce a skin-to-coil capacitance, thereby improving tuning stability of the coil from one user to the next. A shield may also be provided in order to reduce electromagnetic interference.

Presented herein are techniques for monitoring the physical state of a stimulating assembly to, for example, detect the occurrence of an adverse event. More specifically, an elongate stimulating assembly comprising a plurality of longitudinally spaced contacts is at least partially implanted into a recipient. Electrical measurements are performed at one or more of the plurality of contacts and the electrical measurements are evaluated relative to one another to determine the physical state of the stimulating assembly.

Presented herein are techniques for optimizing stimulation parameters for use in a stimulating auditory prosthesis based on a recipient's auditory cognitive ability

The present invention discloses of binaural stimulation in a neural auditory prosthesis. Binaural acoustic signals are generated that represent sound associated with a user's left and right ears respectively. Based on the binaural acoustic signals, corresponding binaural stimulation signals are generated for electrical stimulation of auditory nerve tissue of the user, wherein the binaural stimulation signals each include a fine structure component with periodic characteristics and interaural time difference (ITD) information. A phase jitter component is added to the binaural stimulation signals to reduce the periodic characteristics of the fine structure component while preserving the interaural time difference (ITD) information.

A hearing prosthesis whereby the change of a parameter by the user is only possible in discrete maximum steps, with the availability for further increments being dependant upon some conditional event or occurrence (“condition” herein) represented by one or more parameters such as the time which has elapsed since some previous event. In embodiments in which the parameter(s) include an event, such event may be, for example, the initial fitting or adjustment by a clinician, the last user adjustment, the last upward adjustment by the user, etc. In certain embodiments, the condition parameter(s) may include, for example, an elapsed period of time, a certain quantity of stimuli at a particular current level, or some combination of time, stimulation count and stimulation level. In alternative embodiments, there may be a tiered set of increasing increments, of which more gradually are available over time.

A method and system for fitting and adjusting the operation of an acoustic hearing prosthesis or a hybrid electric and acoustic hearing prosthesis. A graphic user interface allows for the acoustic and electric fitting parameters to be viewed and adjusted in a comparable way. The method further allows for the parameters for acoustic stimulation of the acoustic channels to be adjusted in response to behavioral or objective measurement of responses to known stimuli, so as to achieve a desired response curve.

An exemplary method of facilitating adjustment of one or more fitting parameters by an auditory prosthesis patient includes 1) receiving, by a fitting subsystem communicatively coupled to a sound processor, user input representative of a selection of a fitting parameter, 2) associating, by the fitting subsystem in response to the user input, the fitting parameter with a physical input mechanism that is a part of the sound processor, and 3) dynamically adjusting, by the fitting subsystem, a value of the fitting parameter in response to actuation by a user of the physical input mechanism. Corresponding methods and systems are also described.