Hover-Touch Controller Offset Correction for Seamless Input
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Solution Overview
Problem
Current hover touch controller devices experience user input perception issues due to offsets between the hover point and touch point, limiting the accuracy and effectiveness of spatial input communication in interactive systems like VR, AR, and MR environments.
Innovation Solution
An apparatus and method that include a touch surface, a proximity sensor for three-dimensional position information, and a touch sensor for two-dimensional position information, with a processor that determines the hover point and touch point and corrects for any offset, communicating the corrected position to a display device to enhance user interaction precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hover touch controller device is used for spatial input, then user interaction capability is improved, but offset between hover point and touch point causes input perception issues
Solution Approach 1:
The system continuously monitors the offset between hover point and touch point during user interaction, using feedback loops to detect and correct the discrepancy in real-time, ensuring accurate input perception while maintaining enhanced interaction capability
Solution Approach 2:
The system dynamically adjusts the coordinate mapping parameters between hover and touch points based on detected offset patterns, transforming the spatial relationship parameters to eliminate perception issues while preserving the advanced interaction modes
2Measurement precision
If offset correction is applied between hover and touch points, then input perception accuracy is improved, but system complexity increases
Solution Approach 1:
The system performs self-calibration by automatically detecting the offset between hover and touch points and correcting its own coordinate mapping without requiring external calibration tools or manual intervention, maintaining accuracy while minimizing added complexity
Solution Approach 2:
The system pre-establishes correction algorithms and coordinate transformation frameworks in advance, so that when offset issues arise, the correction mechanisms are already in place and can be activated immediately without adding complex real-time processing requirements
Data Source
AI summary
A hover touch controller device includes a touch sensor having a touch surface and a proximity sensor. The touch sensor provides two-dimensional position information on when and where a user's finger touches the touch surface. The proximity sensor provides three-dimensional position information on pre-touch events. The pre-touch events corresponding to the user's finger hovering over the touch surface within some maximum depth. The hover touch controller device further includes a processor. The processor determines from the three-dimensional information a hover point projected on the touch surface and determines from the two-dimensional information a touch point on the touch surface. The processor communicates the hover point and the contact point to a display device. This can include correcting for any perceived user interaction issues associated an offset between the hover point and the touch point.