发明名称 |
DEMODULATION APPARATUS AND METHOD FOR RFID READER IN PASSIVE RFID ENVIRONMENT |
摘要 |
A demodulation apparatus for a Radio Frequency Identification (RFID) reader includes: a direct current (DC) offset cancellation unit for cancelling DC-offset noise contained in a PSK-modulated or ASK-modulated subcarrier tag signal from the tag signal when the tag signal is received; and a subcarrier digital demodulator for eliminating a subcarrier from the tag signal from which DC-offset noise has been cancelled to demodulate the DC-offset noise-cancelled tag signal.
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申请公布号 |
US2011064165(A1) |
申请公布日期 |
2011.03.17 |
申请号 |
US20090625699 |
申请日期 |
2009.11.25 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
BAE JI-HOON;LEE DONGHAN;CHO KWANG-SOO;PARK MAN SIK;PARK CHAN-WON;QUAN CHENG-HAO;CHOI WON KYU;CHOI GIL YOUNG;CHAE JONG-SUK |
分类号 |
H04L27/22;H04L25/06;H04L27/00;H04Q5/22 |
主分类号 |
H04L27/22 |
代理机构 |
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