Touch Controller Gesture Recognition via Path Analysis
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Solution Overview
Problem
Touch sensors with high sensitivity and reactivity often misinterpret curved hand movements as multiple touches, leading to reduced usability as users must carefully interact with touch screens to avoid incorrect gesture recognition.
Innovation Solution
An electronic apparatus with a controller that differentiates between individual and collective touches based on moving path and distance thresholds, allowing for accurate function implementation according to user intention, and provides a user interface to adjust these thresholds for improved interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If touch sensor sensitivity is increased to improve touch detection accuracy, then touch detection precision is improved, but false recognition of curved hand movements as multiple touches increases
Solution Approach 1:
The patent segments the touch recognition process into multiple analysis dimensions: individual touch point detection, moving path analysis, distance calculation between touch points, and threshold-based classification. This segmentation allows the system to process complex touch gestures by breaking them down into manageable components that can be analyzed separately and integrated to determine user intent.
Solution Approach 2:
The patent introduces dynamic parameters including moving path direction, distance between touch points, and time-based motion analysis. These dynamic characteristics allow the system to differentiate between intentional multi-touch gestures and accidental curved hand movements by analyzing how touch points move relative to each other over time, rather than relying solely on static touch position data.
2Productivity
If the system performs individual touch functions on multiple touch points, then touch responsiveness is improved, but user usability deteriorates when curved hand movements are misrecognized
Solution Approach 1:
The patent implements a feedback mechanism where the system analyzes the relationship between multiple touch points including their moving paths and mutual distances, then provides classified touch recognition results. This feedback loop allows the system to learn from touch patterns and adjust its interpretation, providing more accurate gesture recognition that aligns with user intent while maintaining rapid response times.
Solution Approach 2:
The patent changes the parameters used for touch classification by introducing composite parameters that combine individual touch coordinates with moving path directions and inter-touch distances. This parameter transformation enables the system to distinguish between different gesture types more effectively, improving usability while preserving the speed benefits of individual touch processing.
3Speed
If the system recognizes each touch point independently, then touch detection speed is improved, but accuracy in determining user intention deteriorates
Solution Approach 1:
The patent merges individual touch point data with additional contextual information including moving path trajectories and distance relationships between touch points. By combining these multiple data sources, the system maintains the speed advantage of independent touch detection while adding layers of analysis that improve the accuracy of user intention recognition through holistic gesture interpretation.
Data Source
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AI summary
An electronic apparatus is provided. The electronic apparatus includes a display configured to include a screen for displaying an image; a touch sensor configured to sense touches by a user on the screen; and a controller configured to identify moving paths corresponding to the touches, determine whether the touches correspond to individual touches on a plurality of respective regions of the screen or a collective touch on a single region comprising the plurality of respective regions of the display based on the identified moving paths, and perform either at least one first function according to the individual touches on the plurality of respective regions, or a second function according to the collective touch on the single region based on the determination. A region in which a user's touch is sensed is recognized in accordance with a user's intention, thereby improving usability of the electronic apparatus.