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Uninterrupted Fitting

IP.com Disclosure Number: IPCOM000237926D
Publication Date: 2014-Jul-22
Document File: 1 page(s) / 29K

Publishing Venue

The IP.com Prior Art Database

Abstract

Relating to cochlear implant (CI) fitting (or the electrical part of an electro-acoustic system), disclosed is an improved method for setting comfort and threshold levels. This idea enables continuous stimulation while levels are adjusted, regardless of the methodology used.

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Title 

Uninterrupted fitting

Abstract

Relating to cochlear implant (CI) fitting (or the electrical part of an electro-acoustic system), disclosed is an improved method for setting comfort and threshold levels. This idea enables continuous stimulation while levels are adjusted, regardless of the methodology used.

Problem Addressed 

When a cochlear implant (CI) wearer adjusts comfort and threshold levels while the device is stimulating, stimulation briefly stops.  This potentially causes difficulty for recipients to note the small differences being made.  A method is needed to improve speed and usability when adjusting levels in a CI.

Novelty Statement

The solution relies on precise control of the volume delivery to the sound processor.  The approach is to thoroughly understand the signal path and properly calibrate the audio delivered to the sound processor bypassing the microphones.  This allows the user to establish a map with maximal dynamic range.  The increments/decrements of comfort levels can be simulated by adjusting the audio, rather than the map levels. Once set, the map needs to be updated just once.

For threshold measurements, this method can also acoustically simulate psychophysics.

Description (Components, Process)

With this method, the sound processor is always in live mode. The microphones are disabled. The incoming signal is delivered through the accessory input throughout the entire fitting procedure.

At the start, a map is defined with a very large e...