Edge Mis-touch Recognition via Touch Profile Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current touch screen technologies fail to effectively address mis-touches that occur when a device with a touch screen is held by hand, leading to user errors and compromised user experience, especially with larger or edge-narrow devices.
Innovation Solution
A mis-touch recognition method that determines a touch profile on the screen and judges whether the horizontal coordinate corresponding to the maximum vertical length is within a predetermined location range, recognizing touches within this range as mis-touches, thereby preventing mis-operations and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a capacitive touch screen is made more sensitive to conductors (e.g., fingers), then the touch response experience is improved, but mis-touches are generated more easily at edges of the touch screen
Solution Approach 1:
The patent applies different recognition criteria to different regions of the touch screen. Specifically, it identifies edge regions and applies mis-touch recognition algorithms specifically to these areas, while maintaining normal touch response in central regions. This localized approach allows the screen to remain sensitive overall while preventing mis-touches in problematic edge areas.
Solution Approach 2:
The patent performs preliminary analysis of touch characteristics before executing the touch command. By analyzing touch position, area, and temporal patterns in advance, the system can identify potential mis-touches before they affect operation, allowing preventive rejection of erroneous inputs while maintaining responsiveness to valid touches.
2Adaptability or versatility
If the touch screen device is designed with a narrow edge or large size, then the device form factor is improved, but mis-touches are generated more easily when held by hand
Solution Approach 1:
The patent identifies and marks specific edge regions on the touch screen that are prone to mis-touches, creating virtual boundary zones around the physical edges. These localized regions are monitored separately using mis-touch recognition algorithms that analyze touch characteristics specific to edge interactions, allowing the device to maintain its narrow-edge or large-size form factor while compensating for the increased mis-touch propensity through software-based regional differentiation.
3Ease of operation
If the touch screen responds sensitively to conductor touches, then user interaction is enhanced, but error points are generated affecting user operation and experience
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors touch characteristics and provides real-time validation. When a touch is detected, the system analyzes its properties (position, area, duration, pressure) and compares them against expected patterns. Valid touches are processed immediately, while suspected mis-touches are rejected with feedback to the user, maintaining the responsive feel of the screen while filtering out erroneous inputs.
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
Effectively identifies and prevents mis-touches at the edges of the screen, enhancing user interaction by distinguishing between normal and mis-touch inputs, thus improving the overall user experience on handheld touch screen devices.
Implementation Method 1
When a finger touches a metal layer, the finger and the surface of the touch screen form a coupling capacitor because of the existence of an electric field of the human body. The capacitor is a direct conductor for a high frequency current, whereupon the finger absorbs an extremely small current from the touch point, thereby affecting coupling of two electrodes around the touch point to change a capacitance between these two electrodes.
Implementation Method 2
When a finger touches a metal layer, the finger and the surface of the touch screen form a coupling capacitor because of the existence of an electric field of the human body.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided are a mis-operation recognition method and device. In the method, a profile of a touch is determined according to the touch on a touch screen; whether a horizontal coordinate corresponding to a maximum vertical length of the profile is located within a predetermined location range on the touch screen or not is judged; and in a case that it is judged that the horizontal coordinate is located within the predetermined location range, the touch corresponding to the profile is recognized as a mis-touch. By means of the technical solution, a problem caused by a mis-touch generated when a touch screen device is held by a hand is solved, and a mis-operation is prevented, thereby improving user experience.