Wearable Voice Input Sensitivity Control via Proximity Detection
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Solution Overview
Problem
Conventional wearable devices face challenges in maintaining voice recognition accuracy when the device is not worn on the user's wrist, such as when it is temporarily removed and placed on a surface, leading to unsatisfactory voice recognition due to varying user usage states.
Innovation Solution
An electronic device with a voice input unit that adjusts its sensitivity based on proximity detection, increasing sensitivity when the device is not worn to prevent deterioration in voice recognition accuracy and reducing power consumption when worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the voice input sensitivity is set to be high when the device is worn on the user's wrist, then the voice recognition accuracy is improved, but the power consumption increases
Solution Approach 1:
The voice input sensitivity is dynamically adjusted based on the detected proximity state between the electronic device and the user. When the device is worn close to the user, high sensitivity is applied to ensure accurate voice recognition. When the device is removed or placed on a surface, sensitivity is reduced to lower power consumption. This dynamic adjustment resolves the contradiction by making sensitivity adaptive rather than fixed.
2Use of energy by moving object
If the voice input sensitivity is set to be low when the device is not worn, then the power consumption is reduced, but the voice recognition accuracy deteriorates
Solution Approach 1:
The system dynamically switches sensitivity levels based on proximity detection. When the device is not worn (low proximity), low sensitivity mode is activated to conserve power while maintaining sufficient voice recognition capability for distant commands. This resolves the contradiction by ensuring the sensitivity level matches the actual usage scenario rather than using a fixed low setting that would always compromise accuracy.
3Measurement precision
If the voice input sensitivity is set to high sensitivity mode always, then the voice recognition accuracy is maintained, but the power consumption increases
Solution Approach 1:
Instead of maintaining high sensitivity constantly, the system dynamically adjusts sensitivity based on real-time proximity detection. High sensitivity is applied only when needed (device worn), and reduced when the device is removed. This dynamic approach maintains voice recognition accuracy during actual usage while significantly reducing power consumption during non-usage periods.
4Use of energy by moving object
If the voice input sensitivity is set to low sensitivity mode always, then the power consumption is reduced, but the voice recognition accuracy deteriorates
Solution Approach 1:
The system avoids permanently operating in low sensitivity mode by dynamically switching between sensitivity levels based on proximity detection. When the device is worn and voice recognition is needed, high sensitivity is activated to ensure accurate recognition. This dynamic switching ensures sufficient accuracy during usage while enabling power savings during non-usage, resolving the contradiction between continuous low-power operation and adequate performance.
Data Source
AI summary
To provide an electronic device, which is carried by a user and is provided with a voice input unit, provided with a detection unit detecting a proximity state of the electronic device and the user and a control unit controlling the detection sensitivity of a voice input unit according to a detection result by the detection unit. Preferably, the detection unit detects a wearing state of the electronic device by the user and, when a non-wearing state where is detected by the detection unit, the control unit increases the detection sensitivity of the voice input unit to be higher than the detection sensitivity of the voice input unit in the wearing state.