Touch Layer Switching for Interactive Workspaces Using Accessory Detection
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Solution Overview
Problem
Modern touchscreen information handling systems face challenges with inadvertent inputs due to users unintentionally touching the display when using multiple accessories, disrupting digital creation workflows and requiring manual switching between touch layers, which is inconvenient.
Innovation Solution
The system automatically switches between touch layers based on the status of user interface devices such as a totem and a pen, using sensors to determine user presence and actions, and adjusts palm rejection and touch processing configurations dynamically to optimize input handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a physical button is provided on the LCD to manually select between touch layers, then the user can control input mode switching, but the user experience is disrupted during digital creation workflows
Solution Approach 1:
The system automatically detects which accessory the user is holding (pen or totem) and autonomously switches between touch layers without requiring any user action. The touch layer selection is performed self-service based on accessory detection, eliminating the need for manual intervention via physical buttons.
Solution Approach 2:
The mechanical physical button is replaced with an automated sensor-based detection system. Instead of requiring mechanical user input, the system uses sensors to detect accessory presence and automatically triggers the appropriate touch layer, substituting mechanical operation with automated sensing and control.
2Adaptability or versatility
If multiple accessories are used simultaneously, then the functionality and versatility of the system is enhanced, but inadvertent touch inputs increase
Solution Approach 1:
The system dynamically adjusts touch layer settings based on real-time accessory detection. When a pen is detected, the system switches to a touch layer optimized for pen input with adjusted palm rejection parameters. When a totem is detected, it switches to a different touch layer configuration. This dynamic adaptation allows multiple accessories to be supported while maintaining input accuracy through context-aware parameter adjustment.
Solution Approach 2:
The system changes critical parameters such as palm rejection sensitivity and touch zone activation based on which accessory is detected. By modifying these parameters dynamically according to accessory type, the system maintains high input accuracy across different accessory combinations despite the increased complexity of supporting multiple accessories.
3Reliability
If palm rejection is enhanced to prevent inadvertent inputs, then input accuracy is improved, but legitimate touch inputs may be rejected
Solution Approach 1:
The palm rejection parameters are dynamically adjusted based on the detected accessory type. When a pen is detected, the system enhances palm rejection to prevent inadvertent inputs from the user's other hand or from resting their hand on the display. When a totem is detected, the system adjusts palm rejection parameters to be less aggressive, allowing legitimate touch inputs while still preventing inadvertent activation. This dynamic parameter adjustment balances input accuracy with operational responsiveness.
Data Source
AI summary
Systems and methods for automatically switching between touch layers of an interactive workspace based upon the use of accessory devices. In an illustrative, non-limiting embodiment, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution by the processor, cause the IHS to: determine a first status of a first user interface device and a second status of a second user interface device; and select a touch layer of the IHS based upon the first and second statuses.