Hearing Aid Receiver Dynamic Mode Switching
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Solution Overview
Problem
There is a need to minimize power consumption in hearing aids while ensuring satisfactory radio signal transmission quality, particularly in battery-powered devices where energy constraints are significant.
Innovation Solution
A communication system that dynamically selects between different reception modes, including double-sideband (DSB), single-sideband (SSB), and independent-sideband (ISB) modes, based on detected signal quality parameters to balance power consumption and transmission quality, using a combination of demodulators and a performance analyzer to switch between these modes during signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DSB mode is used for signal reception, then signal transmission quality is improved, but power consumption increases
Solution Approach 1:
The receiver dynamically switches between DSB and SSB modes based on detected signal quality parameters. When signal quality is good, SSB mode is used to reduce power consumption. When signal quality degrades, the system transitions to DSB mode to maintain reliable communication, thus adaptively balancing power consumption and transmission quality.
Solution Approach 2:
The system changes the reception mode parameter (DSB/SSB) based on detected performance parameters such as signal-to-noise ratio or bit error rate. This parameter change allows the receiver to optimize between power efficiency and signal quality by selecting the appropriate modulation mode according to current channel conditions.
2Use of energy by moving object
If SSB mode is used for signal reception, then power consumption is reduced, but signal transmission quality may deteriorate
Solution Approach 1:
The receiver dynamically switches between DSB and SSB modes based on detected signal quality parameters. When signal quality is good, SSB mode is used to reduce power consumption. When signal quality degrades, the system transitions to DSB mode to maintain reliable communication, thus adaptively balancing power consumption and transmission quality.
Solution Approach 2:
The system uses a performance analyzer to detect signal quality parameters and provides feedback to the mode selection logic. This feedback mechanism enables the receiver to monitor transmission quality and switch from SSB to DSB mode when quality thresholds are not met, ensuring reliable communication while optimizing power consumption.
3Adaptability or versatility
If multiple demodulators are included for different modes, then adaptability is improved, but device complexity increases
Solution Approach 1:
The system incorporates multiple demodulators (DSB demodulator and SSB demodulator) within a single receiver architecture, enabling the device to handle both DSB and SSB transmission modes. This multi-functionality allows the hearing aid to adapt to different transmission modes selected by the remote device, improving versatility while managing complexity through integrated design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach extends the battery life of hearing aids by optimizing power usage while maintaining acceptable audio communication performance, allowing for trade-offs between data transmission performance and power consumption, and ensuring signal quality through redundant sideband cross-checking.
Implementation Method 1
A superheterodyne receiver has a local oscillator (LO) that is mixed with the incoming received signal to generate a lower frequency signal commonly referred to as the intermediate frequency (IF)
Data Source
AI summary
A communication system reduces power consumption of a radio receiver and/or ensures quality of signal transmission by using various modes of receiver operation. In one embodiment, the communication system is part of a hearing assistance system with a hearing aid including the radio receiver. In one embodiment, a mode of reception is selected during signal transmission based on a detected parameter indicative of quality of the signal transmission. In one embodiment, a hearing aid includes a radio receiver using independent sidebands to receive signals transmitted using each of an upper-sideband and a lower-sideband.