수동형 RFID 리더의 심볼 동기화 방법 및 장치
배지훈, 채종석, 최길영, 조광수, 권성호, 이동한, 최원규, 박만식, 박찬원
- 8724761 (2014.05.13)
- Provided is a symbol synchronization apparatus and method of a passive RFID reader. The symbol synchronization apparatus includes: an edge clock detector generating edge clocks by detecting phase inversion positions of a received signal; a preamble detector detecting a preamble section by analyzing the generation times of the edge clocks; a symbol decision time extractor extracting a symbol decision time by averaging distances between the edge clocks consecutively generated in the preamble section, when the preamble section is detected; and a symbol decider deciding a symbol by analyzing the magnitude of the received signal, when the time reaches the symbol decision time.
- KSP 제안 키워드
- Clock detector, Decision time, Passive RFID, Passive RFID reader, Phase inversion, RFID reader, Symbol synchronization