Hearing Prosthesis Power Modes for Battery Life and Sound Quality
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Solution Overview
Problem
Current hearing prostheses lack efficient power management and adaptive operating modes to optimize battery life and performance based on user activity and environmental conditions.
Innovation Solution
A hearing prosthesis system with an external unit and an implanted unit, featuring a power management system that monitors battery life and adjusts operating modes (awake/sleep) based on user activity, orientation, and environmental factors, ensuring optimal power usage and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hearing prosthesis operates in high-performance mode continuously, then sound perception quality is improved, but battery life deteriorates
Solution Approach 1:
The system dynamically adjusts operating modes between high-performance and power-saving states based on real-time detection of user activity and environmental conditions. The processor transitions between active and sleep modes, adjusting power consumption characteristics to match actual usage requirements rather than operating at fixed high performance levels
Solution Approach 2:
The system changes operational parameters including power consumption levels, processing intensity, and component activation states based on detected conditions. When low power modes are indicated, the system modifies electrical parameters, signal processing depth, and operational frequency to reduce energy consumption while maintaining adequate functionality
2Adaptability or versatility
If the hearing prosthesis activates all processing functions continuously, then adaptability to different conditions is improved, but power consumption increases
Solution Approach 1:
The system selectively activates specific processing functions and components based on current operational needs rather than maintaining all functions active. Different parts of the system operate at different power levels - full performance when needed, reduced performance when sufficient - creating localized quality variations in power consumption across system components
Solution Approach 2:
The system applies partial action by activating only the necessary subset of processing functions required for current conditions. Rather than running all adaptive algorithms and processing channels continuously, the system engages only those functions needed for the present operational context, reducing overall power consumption while maintaining adaptability
3Reliability
If the hearing prosthesis uses advanced signal processing, then hearing performance is improved, but device complexity increases
Solution Approach 1:
The system performs self-monitoring and self-adjustment of power consumption based on internal sensor data and operational state. The processor automatically detects when low power modes should be indicated and initiates appropriate power-saving measures without external intervention, managing its own power resources through integrated sensing and control
Data Source
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AI summary
A method performed by an electronic controller includes determining a charge level of a power supply configured to provide power to a medical device, and estimating, based on the charge level of the power supply, a first power supply life for operating the medical device according to a first mode. Further, the method includes estimating, based on the charge level of the power supply, a second power supply life for operating the medical device according to a second mode. As recited, operating the medical device according to the first mode has a different power use or consumption characteristic from operating the medical device according to the second mode. The method also includes generating a notification indicative of the first power supply life and the second power supply life.