Portable Terminal Profile Exchange via Scannable Random Code
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Solution Overview
Problem
There is no existing technology that allows for easy and reliable specification of an exchange partner when exchanging profile information between portable terminals using direct wireless communication.
Innovation Solution
A profile information exchange system where a first portable terminal advertises a signal with a unique service identification code and a randomly generated identification code, displayed as a two-dimensional code, allowing a second portable terminal to read and verify the code to specify the exchange partner, enabling direct wireless communication without external facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If direct wireless communication is used between portable terminals for profile information exchange, then external communication facilities and intermediaries are eliminated, but reliable specification of exchange partners becomes difficult
Solution Approach 1:
The patent introduces a two-dimensional code as an intermediary carrier that bridges the first portable terminal and the second portable terminal. This code contains encoded identification information that enables the second terminal to reliably identify and specify the first terminal as the exchange partner, solving the reliability issue in direct wireless communication without requiring complex authentication protocols
2Ease of operation
If randomly generated identification codes are used for profile information exchange, then exchange partner specification becomes easier, but code management complexity increases
Solution Approach 1:
The patent uses a two-dimensional code as a visual copy or representation of the randomly generated identification code. Instead of requiring terminals to generate, store, and manage complex random codes directly, the system converts these codes into visual two-dimensional code formats that can be easily displayed and scanned, simplifying the user interface while maintaining the security benefits of random code generation
Data Source
AI summary
A processor in a first portable terminal of a first user advertises an advertising signal including a unique service identification code and a randomly generated identification code and displays a two-dimensional code corresponding to a randomly generated identification code based on profile information of the first user on a screen of the first portable terminal. A processor in a second portable terminal of a second user specifies the first portable terminal of an exchange partner by reading the two-dimensional code displayed on the screen of the first portable terminal and determining coincidence with the received randomly generated identification code, and exchanges the profile information.