Bone Conduction Voice Control for Noisy Electronic Device Operation
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Solution Overview
Problem
In high-noise environments, conventional communication systems using air conduction microphones suffer from voice distortion and inaccurate voice recognition, while bone conduction microphones have poor robustness and are inconvenient for operation due to the need for manual touch controls, especially for users wearing gloves.
Innovation Solution
A device operation method utilizing a bone conduction microphone to collect vibration signals from nasal cavity and throat sounds, which are processed to improve recognition accuracy and reduce complexity through noise reduction and feature extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If air conduction microphone is used to collect voice in high-noise environment, then voice information can be collected, but voice distortion is large and voice recognition is inaccurate
Solution Approach 1:
The patent replaces air conduction microphone with bone conduction microphone to transmit voice signals through bone vibration instead of air waves. This substitution allows voice recognition to work effectively in high-noise environments where air conduction microphones fail, as bone conduction is less susceptible to ambient noise interference.
Solution Approach 2:
The patent introduces bone conduction as an intermediary transmission medium between the user's voice and the microphone sensor. Instead of directly capturing sound waves in air, the system uses bone vibration as an intermediary carrier to transmit voice information, thereby isolating the voice signal from ambient noise interference.
2Measurement precision
If bone conduction microphone is used to collect voice in high-noise environment, then voice recognition can be improved, but robustness is poor and operation is inconvenient for users wearing gloves
Solution Approach 1:
The patent replaces manual touch control with voice-based bone conduction control. Instead of requiring users to physically interact with the device (which is inconvenient for glove-wearing users), the system uses bone conduction microphones to recognize voice commands, enabling hands-free operation while maintaining high accuracy in noisy environments.
Solution Approach 2:
The system enables users to control the device through their own voice without requiring external assistance or manual intervention. The bone conduction microphone captures voice signals that directly stimulate the bone, allowing users to perform operations independently through voice commands alone.
3Measurement precision
If bone conduction microphone is used, then voice collection is improved in noisy environments, but the system complexity increases due to mode control requirements
Solution Approach 1:
The patent makes the bone conduction microphone serve multiple functions: both voice collection for communication and voice control for operation initiation. This multi-functionality reduces the need for separate control mechanisms and mode switching, thereby simplifying the overall system while maintaining high voice collection accuracy in noisy environments.
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
Enhances recognition accuracy and simplifies operation in noisy conditions by leveraging vibration signals from specific sounds, enabling efficient and safe interaction with electronic devices.
Implementation Method 1
a bone conduction microphone connected to the electronic device, wherein the bone conduction microphone collects a vibration signal of a specific sound made by a nasal cavity and/or a throat of a user who uses the electronic device
Data Source
AI summary
Embodiments of this disclosure provide a device operation method and apparatus, and an electronic device. In the device operation method, after obtaining a vibration signal collected by a bone conduction microphone connected to the electronic device, the electronic device extracts a vibration signal feature of the vibration signal, and then compares the extracted vibration signal feature with a control feature stored in the electronic device. When a comparison result is that the extracted vibration signal feature matches the control feature, the electronic device performs an operation corresponding to the control feature. The vibration signal collected by the bone conduction microphone may be a bone conduction audio signal, and the bone conduction audio signal is skin vibration triggered when a nasal cavity and/or a throat of a user who uses the electronic device make/makes a specific sound.