RFID Integrated Circuit Error Correction Controller
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Solution Overview
Problem
Conventional RFID systems require additional protocol steps for updating error correction data each time data is initialized or changed, necessitating interaction between the RFID interrogator and tag to generate error correction data, which is inefficient.
Innovation Solution
The RFID tag's integrated circuit automatically generates and updates error correction data upon receipt of a lock command, eliminating the need for additional interaction with the interrogator, using error correction codes like Hamming or BCH codes to check and correct data blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RFID interrogator generates error correction data and sends it to the tag, then data integrity is ensured, but additional protocol steps and interaction are required, reducing system efficiency
Solution Approach 1:
The RFID tag is equipped with error correction code generation capability, allowing it to autonomously generate and store error correction data for its own data blocks when receiving lock commands. This self-service approach eliminates the need for the interrogator to generate and transmit error correction data, reducing protocol complexity and improving system efficiency while maintaining data integrity
2Reliability
If the RFID tag has error correction capability, then data integrity is improved, but the tag complexity increases
Solution Approach 1:
The controller in the RFID tag is designed to perform multiple functions including data storage, error correction code generation, and error correction. By integrating these functions into a single controller, the patent achieves data integrity improvement while minimizing the increase in tag complexity through functional consolidation rather than adding separate dedicated components
Data Source
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AI summary
The disclosure relates to an integrated circuit for a radio-frequency identification (RFID) tag. Example embodiments include an integrated circuit (101) for an RFID tag, the integrated circuit (101) comprising: a memory (104) for storing data; a transceiver (107) for receiving signals from, and transmitting signals to, an antenna (102); and a controller (103) configured to process signals received via the transceiver (107) and to access data stored in the memory (104); wherein upon receiving, via the transceiver module (107), a lock command referring to a data block in the memory (104), the controller (103) is configured to generate error correction data for the data block and to store the error correction data in the memory.