NFC Tag Control Unit for Bidirectional Communication Autonomy
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Solution Overview
Problem
In NFC communication, the tag cannot voluntarily control data transmission as the data flow is controlled by the reader/writer, limiting its ability to actively send data and control non-contact communication.
Innovation Solution
A communication apparatus that includes a control unit capable of receiving a message with parameters for controlling non-contact communication, allowing the tag to instruct the reader/writer to perform either an NDEF read or write procedure, enabling bidirectional communication and allowing the tag to actively control the communication process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the reader/writer controls the data flow in NFC communication, then the communication protocol is simple and standardized, but the tag cannot voluntarily control communication and actively send data
Solution Approach 1:
The patent inverts the traditional NFC communication model by enabling the tag to control the data flow direction and initiate communication procedures. Instead of the reader/writer exclusively determining read/write operations, the tag can now voluntarily send data and control whether to perform read or write procedures, fundamentally reversing the control hierarchy.
Solution Approach 2:
The communication control mechanism is made dynamic by allowing the tag to adaptively determine communication modes based on its internal state and requirements. The tag can dynamically switch between being a passive data storage device and an active communication initiator, adjusting its role in real-time during the communication process.
2Adaptability or versatility
If the tag can voluntarily control communication, then bidirectional data exchange is enabled, but the communication protocol becomes more complex
Solution Approach 1:
The patent implements a universal communication framework where the tag possesses multiple functions: it can act as both a passive data storage device and an active communication initiator. The same tag hardware and basic protocol structure support both traditional reader-controlled modes and new tag-controlled modes, enabling bidirectional communication without requiring entirely separate protocol stacks.
3Ease of operation
If the reader/writer always determines read or write procedure, then the communication control is centralized, but the tag application cannot voluntarily send data
Solution Approach 1:
The tag is empowered with self-service capabilities to initiate data transmission and control communication procedures autonomously. The tag application can now voluntarily send data without requiring the reader/writer to always initiate the interaction, allowing the tag to serve its own communication needs independently while maintaining compatibility with reader-controlled modes.
Data Source
AI summary
A communication apparatus (100) according to the present disclosure is a communication apparatus (100) that performs non-contact communication with an external apparatus (200) via a memory (210) of the external apparatus (200). The communication apparatus (100) includes a control unit (120). The control unit (120) receives a message including a parameter related to the control of the non-contact communication. The control unit (120) performs the non-contact communication with the external apparatus (200) on the basis of the parameter.