Wearable Device Hands-Free Navigation via Head Rotation and Eye Gestures
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Solution Overview
Problem
Current wearable computing devices lack efficient hands-free navigation methods for browsing through menus of content, relying primarily on manual inputs which can be cumbersome and limit user interaction in real-time applications like augmented or virtual reality.
Innovation Solution
Implementing a system that uses head rotations and eye gestures to navigate through menus, allowing users to request and interact with a navigable menu by tilting their head and blinking, enabling hands-free browsing and interaction with virtual displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual inputs are used for navigation in wearable computing devices, then device complexity is reduced, but ease of operation deteriorates due to cumbersome interaction
Solution Approach 1:
The patent replaces manual mechanical input methods (buttons, touchscreens) with head movement detection using gyroscopes and accelerometers. Users navigate menus by tilting their head, which the device detects through inertial sensors and translates into navigation commands, eliminating the need for manual inputs while maintaining simple device architecture
Solution Approach 2:
The patent introduces an intermediary processing layer that converts raw head movement data from sensors into meaningful navigation commands. The system detects head orientation changes, interprets them as navigation intent, and executes corresponding menu operations, serving as a mediator between the user's natural head movements and the device's navigation system
2Productivity
If hands-free navigation is implemented using head movements and eye gestures, then ease of operation improves for real-time applications, but device complexity increases due to additional sensors and processing
Solution Approach 1:
The patent makes existing sensors serve multiple functions: the gyroscope and accelerometer used for basic device orientation detection also enable hands-free navigation control. The same sensors that track head position for display orientation now detect navigation gestures, eliminating the need for dedicated navigation hardware and maximizing the utility of existing components
Solution Approach 2:
The patent implements dynamic gesture recognition that adapts to different head movement patterns and speeds. The system dynamically adjusts sensitivity thresholds and gesture recognition parameters based on the detected movement characteristics, allowing flexible hands-free navigation without requiring fixed, complex gesture protocols
3Measurement precision
If multiple sensors are used to detect head rotations and eye gestures, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent combines data from multiple sensors (gyroscope, accelerometer, magnetometer) into a unified head orientation estimation system. By fusing sensor inputs through sensor fusion algorithms, the system achieves high measurement precision for detecting head gestures while using a single integrated sensor module rather than separate dedicated sensors for each function
Data Source
AI summary
Methods and systems for hands-free browsing in a wearable computing device are provided. A wearable computing device may provide for display a view of a first card of a plurality of cards which include respective virtual displays of content. The wearable computing device may determine a first rotation of the wearable computing device about a first axis and one or more eye gestures. Based on a combination of the first rotation and the eye gestures, the wearable computing device may provide for display the navigable menu, which may include an alternate view of the first card and at least a portion of one or more cards. Then, based on a determined second rotation of the wearable computing device about a second axis and based on a direction of the second rotation, the wearable computing device may generate a display indicative of navigation through the navigable menu.