首页>
外国专利>
RFID CARRIER SENSE METHOD AND RFID SYSTEM USING THE SAME
RFID CARRIER SENSE METHOD AND RFID SYSTEM USING THE SAME
展开▼
机译:RFID载波检测方法和使用该方法的RFID系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
An RFID system that is capable of increasing the probability of a spare channel being detected and reducing the influence of interference between reader/writers comprises: a reader/writer which has a reader/writer main body section and an antenna capable of polarization switching, and which sends a continuous carrier wave; and a tag which uses tag information to modulate the continuous carrier wave and sends back a response signal to the reader/writer. The reader/writer main bodysectionjudges the level of a received interference signal and determines a channel and polarization direction for which the level of the interference signal is equal to or less than a threshold value, and receives a response signal from the tag on the determined channel and in the polarization direction.
展开▼