Direction-Based Text Input Using Motion Sensor Axes
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Solution Overview
Problem
Existing input devices for virtual reality (VR) and augmented reality (AR) require two-hand operation, making them unsuitable for efficient text input and increasing design and manufacturing costs.
Innovation Solution
A direction-based text input method using a virtual keyboard displayed on a frame, where the input device detects moving directions along axes to select and confirm candidate texts, allowing for one-handed text input without additional hardware costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional input devices (keyboards, mice, VR/AR peripherals) are used, then text input can be performed, but two-hand operation is required which reduces ease of operation and increases device complexity
Solution Approach 1:
The patent replaces traditional mechanical input devices (keyboards, mice, physical VR/AR peripherals) with a motion sensor-based system that detects directional movements to input text. This substitution eliminates the need for complex mechanical structures while enabling one-handed operation, directly resolving the contradiction between ease of operation and device complexity
Solution Approach 2:
The motion sensor serves multiple functions: it detects movement direction, determines text selection, and confirms input, replacing what previously required separate input devices. This multi-functionality reduces overall device complexity while maintaining ease of text input operation
2Adaptability or versatility
If specialized input devices for VR/AR are designed, then text input capability is provided, but additional design and manufacturing costs are incurred
Solution Approach 1:
The motion sensor is designed to perform multiple functions including text input, making it a universal component that eliminates the need for specialized text input devices in VR/AR systems. This reduces design and manufacturing costs while maintaining adaptability for text input capability
Solution Approach 2:
The existing motion sensor in the VR/AR system is utilized for text input functionality without requiring additional specialized hardware. The system leverages its own existing components to provide text input capability, thereby avoiding additional manufacturing costs
3Ease of operation
If one-handed operation is enabled, then ease of operation is improved, but precision of text selection may be reduced
Solution Approach 1:
The patent introduces directional dimensions (first direction and second direction) for text selection and confirmation. By utilizing multiple directional axes for input, the system maintains high selection precision while enabling one-handed operation, as the multi-dimensional input space compensates for the reduced control capability of a single hand
Data Source
AI summary
A direction-based text input method, a system and computer-readable recording medium using the same are proposed in the disclosure. The method is applicable to a system having a display and an input device and includes the following steps. A virtual keyboard is displayed on a frame of the display, where the virtual keyboard includes multiple input sets, each of the input sets includes candidate texts, and the input sets include a current input set having current candidate texts. A first moving direction and a second moving direction of the input device respectively with respect to a first axis and a second axis are detected so as to accordingly generate an input text, where the first moving direction is associated with a selection among the current candidate texts, and the second moving direction is associated with a confirmation or a cancellation of the selected current candidate text.