NFC Interface Dynamic Mode Switching for Authentication and Data Transfer
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Solution Overview
Problem
Existing NFC communication systems lack an efficient method to dynamically change operation modes based on the presence of specific applications on terminal devices, affecting authentication and data transfer processes.
Innovation Solution
A communication device with an NFC interface that can receive signals to determine if an application is installed on a terminal device, changing its operation mode from Reader to CE mode if the application is not installed, and from Reader to Writer mode if it is, to facilitate appropriate data exchange and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the NFC interface operates in Reader mode to receive signals from terminal devices, then authentication capability is improved, but the ability to supply application installation information to terminal devices deteriorates
Solution Approach 1:
The NFC interface dynamically switches between Reader mode and CE mode based on the operational requirements. When authentication is needed, it operates in Reader mode; when application installation information needs to be supplied, it switches to CE mode. This dynamic mode switching resolves the contradiction by allowing the system to exhibit different functional characteristics at different times rather than being fixed in one mode.
2Adaptability or versatility
If the NFC interface operates in CE mode to supply application installation information, then adaptability is improved, but authentication capability deteriorates
Solution Approach 1:
The system employs dynamic mode switching where the NFC interface transitions between CE mode and Reader mode according to the current operational need. When the terminal device requires application installation information, the interface operates in CE mode; when authentication is required, it switches to Reader mode. This resolves the contradiction by making the system adaptable when needed while maintaining authentication capability when required.
3Productivity
If the NFC interface operates in Writer mode to write information to terminal devices, then data transfer capability is improved, but the ability to receive authentication information from terminal devices deteriorates
Solution Approach 1:
The NFC interface dynamically switches between Writer mode and Reader mode based on operational requirements. When data needs to be written to the terminal device, it operates in Writer mode; when authentication information needs to be received from the terminal device, it switches to Reader mode. This dynamic switching resolves the contradiction by allowing the system to optimize for data transfer when needed while maintaining the ability to receive authentication information when required.
Data Source
AI summary
A communication device may receive a first specific signal from a terminal device via an NFC interface, determine whether the first specific signal includes install information, change an operation mode of the NFC interface from Reader mode to CE mode in a case where it is determined that the first specific signal does not include the install information, change the operation mode of the NFC interface from Reader mode to Writer mode in a case where it is determined that the first specific signal includes the install information, supply first identification information to the NFC interface in a case where the NFC interface operates in CE mode, and supply specific information different from the first identification information to the NFC interface in a case where the NFC interface operates in Writer mode.