Touch Input Settings Management for Pen-Only Mode
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Solution Overview
Problem
Users face difficulties in reliably using touch screens, especially in drawing applications, due to inadvertent palm input registering as valid touch input, and existing methods to disable touch input can be problematic if a pen or stylus is not available for re-enabling it.
Innovation Solution
A method and system that detects an initial user input to disable finger/human body part touch input, provides a dialog box for confirmation, and reverts to default mode if no confirmation is received within a predetermined time, ensuring that only pen input is enabled if confirmed with a pen, thereby preventing inadvertent touch input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If touch input is disabled to prevent inadvertent palm input, then drawing accuracy with pen is improved, but ease of operation deteriorates because user cannot use finger touch input
Solution Approach 1:
The system dynamically switches between touch input mode and pen-only mode based on user needs. A mode selection interface allows users to toggle between these states, enabling the system to adapt its input behavior rather than being fixed in one state. This resolves the contradiction by making the input mode flexible rather than static.
Solution Approach 2:
The system changes the parameter of input device acceptance by detecting specific input patterns (such as prolonged press duration or specific gesture sequences) to switch between allowing touch input and restricting to pen-only mode. This parameter change enables the system to transition between the two contradictory states based on detected user intent.
2Reliability
If touch input is disabled to prevent palm interference, then pen input reliability is improved, but device complexity increases due to mode switching mechanisms
Solution Approach 1:
The system uses the input device itself (pen or finger) to trigger the mode change. By detecting specific input patterns from the pen, the system automatically switches to pen-only mode without requiring separate controls or complex external mechanisms. This self-service approach reduces overall system complexity while maintaining reliability.
Solution Approach 2:
The touch screen serves multiple functions: it acts as both the display surface and the input detection surface. The same hardware layer detects both finger touches and pen inputs, and the processing logic determines the appropriate mode. This multi-functionality reduces the need for separate dedicated components, thereby reducing complexity.
3Measurement precision
If confirmation dialog is displayed to prevent accidental mode switching, then input accuracy is improved, but loss of time occurs due to additional confirmation step
Solution Approach 1:
The system applies partial confirmation by detecting specific input patterns (such as prolonged press duration or specific gesture sequences) that inherently indicate intentional user intent. This partial action serves as implicit confirmation, reducing or eliminating the need for an explicit additional confirmation dialog while still preventing accidental mode switching.
Data Source
AI summary
In one aspect a method including: detecting an initial input indicating a user selection disabling finger/human body part touch input for a touch input device of an information handling device; providing a dialog box to a user offering an opportunity to provide an appropriate input confirming the initial input; responsive to expiration of a predetermined time, reverting back to a default mode wherein finger/human body part touch input is enabled, unless a confirming input is received within the predetermined time; and responsive to receiving a confirming input prior to the expiration of the predetermined time, selecting a pen only mode of input and disabling finger/human body part touch input on the touch input device of the information handling device. Other aspects are described and claimed.