| 摘要 |
A Radio Frequency Identification (RFID) reader, an RFID tag, and a system and method for identifying a tag using a bit synchronizing signal are disclosed. The system for identifying a tag using a bit synchronizing signal includes: an RFID reader for transmitting a transmission request signal for tag data including a random number generation limit, the bit synchronizing signal, and the number of non-collision bits; and an RFID tag for generating a random bit and a random number within a random number generation limit and for counting the bit synchronizing signal to transmit a response signal through the random bit if the counted bit synchronizing signal coincides with the generated random number and transmitting the tag data to the RFID reader if the number of non-collision bits coincides with the random number. Thus, the identification time per tag can be provided uniformly regardless of the number of RFID tags.
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