Touch Panel Trajectory Authentication for Secure Wireless Communication
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Solution Overview
Problem
Existing communication methods lack simplicity and security in establishing wireless communication between devices using touch-based authentication, particularly for transmitting content data including image data.
Innovation Solution
A communication apparatus and method that utilizes a touch panel to detect touch positions and trajectories, converting this information into numerical values for authentication, allowing secure bidirectional wireless communication by matching preset settings, thereby simplifying the communication process and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bar code display and camera capture method is used for wireless communication setup, then automatic device address acquisition is achieved, but communication security is insufficient
Solution Approach 1:
The patent changes the authentication parameter from simple bar code recognition to touch panel trajectory patterns. The touch patterns include temporal change information of touch positions, touch durations, and inter-touch intervals, creating more secure authentication parameters that are harder to replicate than static bar codes.
Solution Approach 2:
The patent uses copying by having the receiving device replicate the exact touch pattern trajectory on its touch panel. The receiving device captures its own touch trajectory and compares it with the transmitted pattern from the sending device, creating a copied authentication verification process that ensures security through pattern matching.
2Reliability
If touch panel trajectory authentication is implemented, then communication security is enhanced, but operation complexity increases
Solution Approach 1:
The patent applies self-service by having the system automatically capture and process touch trajectories without requiring manual configuration. The transceiving units automatically record touch position temporal changes, calculate trajectories, and perform comparisons, eliminating the need for users to manually set up complex authentication parameters.
Solution Approach 2:
The patent uses preliminary action by pre-establishing the touch pattern trajectory before actual content transmission. The authentication process is completed in advance through touch pattern verification, so that when content transmission is initiated, the security verification has already been performed and stored.
3Measurement precision
If detailed touch position temporal change information is captured and transmitted, then authentication accuracy is improved, but data transmission volume and processing time increase
Solution Approach 1:
The patent extracts only the essential authentication elements from the complete touch data. Instead of transmitting all raw touch position temporal change information, the system extracts key trajectory characteristics such as touch pattern shape, key position coordinates, and temporal relationships, reducing data volume while maintaining authentication accuracy.
Solution Approach 2:
The patent applies partial action by implementing a two-stage authentication process. First, a quick preliminary verification is performed using simplified trajectory parameters, and only if this passes does the system proceed to more detailed verification. This reduces average processing time by quickly rejecting obviously incorrect attempts while still providing thorough security for valid attempts.
Data Source
AI summary
A communication apparatus includes a transceiving unit that transmits content data to a portable apparatus and receives temporal change information of a touch position from the portable apparatus, and a transmission control unit that establishes wireless communication between the portable apparatus and the communication apparatus and causes the transceiving unit to transmit the content data to the portable apparatus when the temporal change information of the touch position received by the transceiving unit is substantially identical with preset setting information.