Touch Panel Authentication via Tactile Feedback
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Solution Overview
Problem
Existing information processing devices require users to see the screen to unlock, which can be inconvenient and may expose the authentication process to others.
Innovation Solution
An information processing device with a touch panel that detects multiple positions touched by the user, using authentication data to guide operations such as tapping, swiping, and long pressing with specific fingers and directions, allowing authentication without viewing the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user must see the screen to trace points for authentication, then the authentication process can be completed, but the user convenience deteriorates and security risk increases
Solution Approach 1:
The patent extracts the visual display element from the authentication process by using a non-visual feedback mechanism (vibration pattern) to guide the user through the authentication steps, allowing authentication to proceed without the user needing to see the screen
Solution Approach 2:
The patent introduces vibration feedback as an intermediary between the user and the authentication system, using tactile sensations to convey authentication status and guide operations without requiring visual input
2Reliability
If multiple types of operations with specific finger counts are required, then the authentication strength is improved, but the device complexity increases
Solution Approach 1:
The system automatically detects the number of fingers touching the panel and the type of operation performed, eliminating the need for additional sensors or complex input mechanisms - the touch panel itself provides all necessary detection capabilities
Solution Approach 2:
The patent changes the parameters of the touch panel detection to recognize not just touch position but also touch duration (for long press detection) and the number of simultaneous touch points, enabling multiple operation types without additional hardware
Data Source
AI summary
Authentication data indicates a plurality of types of operation which a user should perform in a predetermined order via a touch panel and a number of fingers, as to each one of the plurality of types of operation, with which the user should touch the touch panel when performing an operation corresponding to the one of the plurality of types of operation. An authentication processing execution unit executes authentication processing by determining, based on a result of detection by the touch panel, whether or not an operation corresponding to each of the plurality of types of operation has been performed in the predetermined order by touching the touch panel with a number of fingers set for each of the plurality of types of operation.