NFC Activation Sequence for Rapid Data Exchange
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Solution Overview
Problem
Current near-field communication (NFC) methods in the 13.56 MHz band require significant time for initialization and data exchange due to protocol overhead, making them unsuitable for time-critical applications.
Innovation Solution
Implementing a second communication mode for sending an activation sequence with an initialization sequence and data request, allowing for rapid data interchange between appliances by bypassing the typical protocol selection sequence, thereby reducing the time required for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ISO 14443 standard protocol selection sequence is used for NFC communication initialization, then communication reliability and standard compatibility are ensured, but the initialization time becomes too long for time-critical applications
Solution Approach 1:
The patent applies preliminary action by performing the initialization sequence and data request in a second communication mode before actual data transmission in the first communication mode. This allows the system to prepare communication parameters and establish connectivity in advance, reducing the time required when time-critical data exchange is needed while maintaining standard protocol compliance.
2Ease of operation
If the protocol selection sequence is performed before data transmission in NFC communication, then proper communication setup is achieved, but the time delay makes it unsuitable for time-critical purposes
Solution Approach 1:
The patent implements periodic action by using a two-mode communication approach where the initialization and data request are performed periodically in the second communication mode, allowing the system to maintain ready-state connectivity without continuous protocol negotiation overhead during actual data transmission in the first mode.
Data Source
AI summary
A communication method for the communication between two appliances which are set up for communication in a first communication mode is provided. The method includes sending an activation sequence in a second communication mode from the first to the second appliance in order to initiate communication based on the first communication mode; sending data from the second appliance to the first appliance based on the first communication mode. The activation sequence sent to the second appliance includes an initialization sequence and a request for data communication in the first communication mode. In addition, a corresponding electronic appliance and system are provided.