HMD Audio-Video Output Coordination via Movable Indicator
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Solution Overview
Problem
Head-mounted displays (HMDs) lack user-friendly interfaces for adjusting audio and video output levels in response to user environments, leading to undesirable situations such as confusion or inability to access data when video output is minimized, like during driving.
Innovation Solution
A control method and interface for HMDs that allows users to adjust audio and video output levels inversely relative to each other through a user interface with a movable indicator, enabling simultaneous adjustment of output levels based on user input, such as via a touch pad or voice commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the HMD minimizes video output in certain situations (e.g., during driving), then safety is improved, but the user fails to acquire data via video output
Solution Approach 1:
The patent combines audio and video output control into a single unified interface with a movable indicator. This allows the system to coordinate both output types together, merging their control functions so that when video output is minimized for safety, audio output can be enhanced to compensate, preventing information loss through multi-sensory integration
Solution Approach 2:
The patent changes the output parameters of audio and video dynamically based on the position of the movable indicator. When the indicator moves to minimize video output for safety reasons, the system automatically adjusts the audio output parameter to increase, ensuring that data acquisition is maintained through alternative sensory channels
2Loss of information
If the HMD provides both audio output and another audio output simultaneously, then information delivery is improved, but the user becomes confused
Solution Approach 1:
The patent implements dynamic control where the relationship between audio and video outputs is not fixed but can be adjusted in real-time. The movable indicator allows users to dynamically balance the two output types, enabling the system to adapt to different situations and prevent user confusion by allowing flexible adjustment of information delivery channels
Solution Approach 2:
The unified interface with the movable indicator provides feedback control, allowing users to adjust the balance between audio and video outputs based on their perceived needs. This feedback mechanism helps users manage information delivery effectively, reducing confusion by giving them direct control over the mix of sensory inputs
3Device complexity
If the HMD outputs only audio data or only video data, then simplicity is improved, but user-friendly control is lacking
Solution Approach 1:
The patent merges the control of audio and video outputs into a single user interface with one movable indicator. This consolidation simplifies the control mechanism while enhancing user-friendliness, as users can adjust both output types simultaneously through a single intuitive interaction rather than managing separate complex controls
Solution Approach 2:
The movable indicator serves multiple functions: it controls both audio and video output levels, allows users to switch between different output modes (audio-only, video-only, or combined), and adapts to various usage scenarios. This multi-functionality reduces device complexity while improving ease of operation through a universal control mechanism
Data Source
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AI summary
A head mounted display and a control method thereof are discussed. The head mounted display is designed to adjust an audio output and a video output of the head mounted display in relation to each other using the control method.