Touchscreen Lock Release via Dual-Region Pattern Verification
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Solution Overview
Problem
Data processing devices with lock functions face challenges in securely releasing the locked state without allowing third-party access, as existing methods rely on specific contact operations that can be discerned by others.
Innovation Solution
A data processing device that detects contact operations and performs determinations to verify if they match pre-registered patterns, releasing the lock only when both first and second contact operations are correctly performed in different regions, with notification and guidance to aid the user in completing the operation efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specific contact operation is required to release the locked state, then security against third-party access is improved, but the operation becomes more complex and time-consuming
Solution Approach 1:
The contact operation is divided into two distinct parts: a first contact operation to depict a specific graphic and a second contact operation to wipe away evidence. This segmentation allows the system to maintain high security through pattern verification while simplifying the user experience by providing clear guidance on what actions to take.
Solution Approach 2:
The system performs preliminary verification of the first contact operation against pre-registered patterns before requiring the second contact operation. This preliminary action ensures security is maintained while the subsequent guidance provided to the user simplifies the remaining steps.
2Reliability
If a specific contact operation is required to release the locked state, then security against third-party access is improved, but the time required to release the lock increases
Solution Approach 1:
The second contact operation serves dual purposes: it acts as an additional security measure while simultaneously serving as the mechanism to wipe away contact evidence. This continuity of useful action means the same gesture accomplishes both security verification and evidence removal, reducing total time required.
Solution Approach 2:
The system provides automatic guidance to the user indicating which region to contact for the second operation, eliminating the need for the user to figure out the correct action. This self-service approach reduces confusion and speeds up the lock release process while maintaining security.
3Ease of operation
If only a single contact operation is used to release the lock, then the operation is simple, but contact evidence remains visible allowing third-party discernment
Solution Approach 1:
The system converts the potentially harmful visibility of contact evidence into a benefit by making the act of wiping away evidence itself the second contact operation. This transforms the harmful residue into a useful security mechanism, where the user must actively remove their own contact trail, adding security while the system provides guidance to keep the process simple.
4Reliability
If a second contact operation is required to wipe away evidence, then security against third-party access is improved, but the device complexity increases
Solution Approach 1:
The second contact operation serves multiple functions simultaneously: it acts as an additional security verification step, a mechanism to wipe away contact evidence, and a user guidance feature that displays which region to contact. This multi-functionality reduces the need for separate complex mechanisms, maintaining relatively simple system architecture while achieving enhanced security.
Data Source
AI summary
A data processing device includes a processor that executes a procedure. The procedure includes: (a) detecting a contact operation to a contacted face and receiving an instruction, (b) in a locked state, executing first determination to determine whether or not the contact operation detected at (a) is a pre-registered first contact operation, and executing second determination to determine whether or not a second contact operation to a different region from the region where the first contact operation has been detected has been performed, and (c) releasing the locked state when it is determined at (b) that the first contact operation and the second contact operation have been detected at (a).