AR Glasses Gaze Input With Secondary Triggers for Touch-Free Control
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Solution Overview
Problem
Existing input methods for mixed reality displays, such as using gaze alone to activate icons, can be slow, and physical touch input buttons pose hygiene risks and safety hazards in multi-user environments.
Innovation Solution
A mixed reality headset equipped with an eye tracking sensor, brain wave sensor, microphone, and other input devices allows users to activate icons in mid-air using gaze and secondary inputs like sound, gestures, or brain waves, eliminating the need for physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If gaze alone is used to activate icons, then physical contact is eliminated, but input speed becomes slow due to timing requirements
Solution Approach 1:
The patent introduces secondary input mechanisms (voice commands, facial gestures, hand gestures) as intermediaries between the user and the icon activation system. These additional input channels allow users to trigger icon activation without relying solely on prolonged gaze, thereby maintaining contactless operation while significantly reducing input time and improving productivity.
2Productivity
If physical touch input buttons are used, then input speed is fast, but bacteria spread and static electric sparks occur in multi-user environments
Solution Approach 1:
The patent replaces the mechanical touch button system with a combination of gaze tracking and secondary input modalities (voice, facial expressions, hand gestures). This substitution eliminates the need for physical contact with shared surfaces, thereby preventing bacterial transmission and static electricity generation while maintaining acceptable input speeds through the synergistic combination of multiple input channels.
3Measurement precision
If gaze timing is required to activate icons, then activation accuracy is improved, but user convenience deteriorates due to extended interaction time
Solution Approach 1:
The patent implements preliminary action by detecting secondary input signals (voice commands, facial gestures, or hand gestures) that can pre-trigger or immediately activate icon selection without requiring the user to maintain a prolonged gaze. This allows the system to maintain activation accuracy through deliberate user intent detection while significantly improving ease of operation by reducing the time and effort required for icon activation.
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 enhances user interaction speed, prevents bacterial contamination, and enables hands-free operation for wheelchair users, making it safer and more efficient for multi-user devices.
Implementation Method 1
A computer in the glasses, is connected, to an eye gaze detecting sensor, in the glasses. The eye gaze sensor, detects the user's eyes gaze point location, on the icons.
Implementation Method 2
The microphone, detects a specific sound, made by the user as a user input.
Implementation Method 3
The brain wave sensor, detects a specific brain wave thought, made by the user as a user input
Data Source
AI summary
An augmented reality headset, with an eye tracking device, and a secondary user input device, such as, a brain wave sensor detecting the user's brain waves, a microphone detecting user sounds, or finger recognition sensor, or facial recognition sensor detecting facial gestures. When entering an elevator, the user views elevator input icons, displayed in mid-air. The user gazes at, an elevator floor icon, a cursor follows the gaze to the icon. The user thinks click, or says enter, or finger gestures, or facial gestures, which activates the icon. The activated floor icon, directs the elevator, to move to the floor. The input icons can be associated with activating, an internet web page, or a public device, wirelessly connected to the glasses, like, a multi-user door opener. The touch-free operation, enables the user to avoid bacteria, that may be on physical touch input buttons, of the public door opener.