Stylus Biometric Authentication Dynamic Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Information handling systems lack efficient methods to dynamically switch between writing and erasing modes based on user authentication and force values, leading to limitations in user experience and functionality.
Innovation Solution
A stylus equipped with a biometric sensor and force sensor that authenticates users and determines force values to switch between writing and erasing modes, using interpolation and logarithmic calculations to determine response values for pixel control on a display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stylus uses fixed force values for writing and erasing modes, then the system is simple to implement, but it lacks adaptability to different user preferences and force conditions
Solution Approach 1:
The patent implements dynamic switching between writing and erasing modes based on detected force values. The system transitions from static fixed-force mode selection to dynamic mode switching that adapts to real-time user input conditions, allowing the stylus to automatically adjust its function based on the applied force magnitude.
Solution Approach 2:
The patent changes the operational parameter from fixed force thresholds to variable force ranges stored in user profiles. Multiple force ranges are defined (e.g., 0-50g, 50-100g, 100-200g, 200-300g) with corresponding response values, allowing the system to adapt to different user preferences and physical conditions while maintaining operational simplicity.
2Measurement precision
If the stylus implements user-specific force profiles, then measurement precision is improved, but the device complexity increases due to profile storage and management
Solution Approach 1:
The system automatically detects force values and determines appropriate response values without requiring manual user configuration. Users simply need to create profiles (e.g., through biometric authentication), and the system self-configures the force-response mappings based on detected patterns, reducing the burden on users while maintaining high precision.
Solution Approach 2:
The patent implements feedback mechanisms where the system monitors force values continuously and adjusts mode switching based on detected patterns. The force sensor provides continuous feedback to the controller, which compares actual force values against stored profiles to determine the appropriate operational mode, enabling precise adaptation to user behavior.
3Adaptability or versatility
If the system uses multiple force ranges with interpolation, then adaptability is improved, but computational cost and processing time increase
Solution Approach 1:
The patent pre-calculates and stores multiple force ranges with their corresponding response values in user profiles during profile creation. This preliminary action eliminates the need for complex real-time calculations during actual use, as the system only needs to compare the current force value against pre-defined ranges and select the matching response value or perform simple interpolation between adjacent values.
4Adaptability or versatility
If the stylus switches modes based on force values, then functionality is improved, but reliability decreases due to potential misclassification of force ranges
Solution Approach 1:
The patent defines overlapping force ranges with buffer zones to prevent misclassification. By creating ranges that account for measurement variations and user force inconsistencies (e.g., allowing some overlap or buffer between ranges), the system ensures reliable mode switching even when force values fall near boundary thresholds, reducing false positives and improving overall reliability.
Data Source
AI summary
In one or more embodiments, one or more systems, methods, and/or processes may determine a first force value of the stylus in contact with a surface; may determine a first profile associated with the first user; may determine that the first force value is not included by the first profile; if multiple force values of the first profile are within a range of the first force value, may determine a first response value based at least on multiple response values of the first profile respectively associated with the multiple force values of the first profile within the range; and if multiple force values of at least one other profile are within the range, may determine the first response value based at least on multiple response values of the at least one other profile respectively associated with the multiple force values of the at least one other profile within the range.