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公开(公告)号:US20070176747A1
公开(公告)日:2007-08-02
申请号:US11556505
申请日:2006-11-03
申请人: Kyoung On Yang , Jeiyoung Lee , Bonkee Kim , Bo-Eun Kim
发明人: Kyoung On Yang , Jeiyoung Lee , Bonkee Kim , Bo-Eun Kim
IPC分类号: H04Q5/22
CPC分类号: G06K7/0008
摘要: Provided is a reader for radio frequency identification (RFID) and a RFID system. A reader for RFID that receives a channel signal comprises a frequency oscillator generating an oscillating signal at a frequency that is offset by an offset frequency from a center frequency of the channel signal, a mixer mixing the channel signal with the oscillating signal that is offset, and a filter filtering a mixed frequency signal provided from the mixer. The reader for RFID and the RFID system are improved in reception for the wave identification using a listen before talk (LBT) mode for identifying an electronic tag.
摘要翻译: 提供了一种用于射频识别(RFID)和RFID系统的读取器。 用于接收信道信号的用于RFID的读取器包括频率振荡器,该频率振荡器以频率偏移来自信道信号的中心频率的偏移频率产生振荡信号,混频器将信道信号与偏移的振荡信号混合, 以及对从混合器提供的混合频率信号进行滤波的滤波器。 用于RFID和RFID系统的读取器在用于识别电子标签的用于听话(LBT)模式的波识别的接收中被改进。
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公开(公告)号:US20070176746A1
公开(公告)日:2007-08-02
申请号:US11551658
申请日:2006-10-20
申请人: Jeiyoung Lee , Kyoung On Yang , Bonkee Kim , Bo-Eun Kim
发明人: Jeiyoung Lee , Kyoung On Yang , Bonkee Kim , Bo-Eun Kim
IPC分类号: H04Q5/22
CPC分类号: G06K7/0008 , G06K7/10069 , H04B1/403 , H04B1/525
摘要: Provided are a radio frequency identification (RFID) reader and a RFID system. Particularly, the RFID reader uses a listen before talk (LBT) mode to identify. A reader for RFID comprises a data path block receiving a tag data signal, a search path block receiving a channel search signal, and a path selection block selecting one of the data path block and the search path block.
摘要翻译: 提供射频识别(RFID)读取器和RFID系统。 特别地,RFID读取器使用听话(LBT)模式来识别。 用于RFID的读取器包括接收标签数据信号的数据路径块,接收信道搜索信号的搜索路径块和选择数据路径块和搜索路径块之一的路径选择块。
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