Touch Screen Authentication via Writing Content and Pen Attributes
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Solution Overview
Problem
Existing electronic apparatuses for user authentication, such as those using touch screens, often require additional devices like keyboards or tags, and suffer from low recognition accuracy, limiting their usability and security.
Innovation Solution
An electronic apparatus and method that utilizes a processor to receive and analyze writing inputs on a touch screen, identifying the content, pen attributes, and position of the input, matching it against registered authentication data to perform user authentication, thereby enhancing security and convenience by integrating writing content and pen attributes for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional devices such as keyboards or tag readers are used for authentication, then authentication functionality is provided, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines the authentication function with the existing touch screen interface by detecting writing patterns directly on the display surface. This merging eliminates the need for separate authentication devices like keyboards or tag readers, resolving the contradiction by maintaining authentication functionality while reducing device complexity
Solution Approach 2:
The touch screen is designed to serve multiple functions: both general user interaction and authentication verification. By making the touch screen universal for both purposes, the patent eliminates the need for dedicated authentication hardware, thereby reducing device complexity while maintaining authentication capability
2Reliability
If additional devices such as keyboards or tag readers are used for authentication, then authentication functionality is provided, but ease of operation deteriorates
Solution Approach 1:
The authentication function is merged with the existing touch interface, allowing users to authenticate using the same natural touching and writing actions they use for general operations. This eliminates the need to learn or adapt to separate authentication devices, improving ease of operation while maintaining security
Solution Approach 2:
The system uses the user's own writing behavior and touch patterns as the authentication mechanism. The user authenticates themselves through their natural writing style on the touch screen, eliminating the need for external authentication devices and simplifying the operation
3Ease of operation
If simple touch input is used for authentication, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The authentication system segments the touch input into multiple measurable parameters including writing pressure, speed, direction, and pattern characteristics. By analyzing these segmented parameters rather than simple touch presence, the system maintains high recognition accuracy while using the simple touch interface
Solution Approach 2:
The system transitions from analyzing simple 2D touch position to analyzing multi-dimensional writing characteristics including pressure, velocity, acceleration, and temporal patterns. This dimensional expansion enables precise user identification through ordinary touch writing without compromising ease of operation
Data Source
AI summary
An electronic apparatus and a method of controlling the same, the electronic apparatus including: a display; and a processor configured to: receive a writing input for user authentication, identify writing content of the writing input and pen attribute of the writing input, perform the user authentication based on whether the identified writing content of the writing input and pen attribute of the writing input match writing content and pen attribute obtained in association with authentication data of a user registered prior to the writing input being received, and control the display to display an image based on the writing input according to which the user authentication has been performed.