Wearable Display Audio Volume Control for Flip-Up Mechanism
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Solution Overview
Problem
Head-mounted video display devices with flip-up structures face challenges in maintaining sound quality when the display is flipped up, as the speaker is moved farther from the user, making sound difficult to hear and affecting communication during telephone calls.
Innovation Solution
A wearable image display device with a control device that adjusts the sound output from a sound output device, making it louder when the display is flipped up, and includes a coupling member to move the display from a visible position to a non-visible position, ensuring sound remains audible even when the speaker is farther from the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display device is flipped up to secure field of view, then the user can see better, but the sound output device moves farther from the user making sound difficult to hear
Solution Approach 1:
The control device changes the output parameter of the sound output device based on the position of the display device. When the display device is detected to be in the flipped-up position, the control device increases the sound output volume to compensate for the increased distance between the speaker and the user's ear, thus maintaining audible sound quality while preserving the visual field of view benefit
2Illumination intensity
If the display device is flipped up, then the visual display is out of view, but the speaker is separated from the user reducing sound audibility
Solution Approach 1:
The system uses a detection device to monitor the position of the display device and provides feedback to the control device. Based on this feedback, the control device automatically adjusts the sound output volume accordingly - increasing volume when the display is flipped up and decreasing it when the display is in the viewing position, thus maintaining reliable sound audibility across different operational states
Solution Approach 2:
The sound output volume is made dynamic rather than fixed. The control device continuously adjusts the sound output parameter based on the real-time position of the display device, allowing the system to adapt to changing conditions and maintain reliable sound delivery whether the display is in the viewing position or flipped up
Data Source
AI summary
A wearable image display device includes: a wearing member worn on a head of a user; a supporting member configured to support a display device that displays video; a coupling member that is coupled to the wearing member and the supporting member and that is configured to move the display device and the like from a first position enabling the user to visually recognize the video to a second position; and a control device configured to control an output of sound output from a speaker disposed at the supporting member. The control device makes the sound output from the speaker when the display device and the like are located in the second position louder than the sound output from the speaker when the display device and the like are located in the first position.