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公开(公告)号：EP1808796B1
公开(公告)日：2009-10-07
申请号：EP06124045.3
申请日：2006-11-14
IPC分类号： G06K7/00
CPC分类号： G06K7/0008
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公开(公告)号：EP1808796A3
公开(公告)日：2008-12-10
申请号：EP06124045.3
申请日：2006-11-14
IPC分类号： G06K7/00
CPC分类号： G06K7/0008
摘要： Provided is a reader (120) for radio frequency identification (RFID) and a RFID system. A reader for RFID that receives a channel signal comprises a frequency oscillator (201) generating an oscillating signal at a frequency that is offset by an offset frequency from a center frequency of the channel signal, a mixer (202) mixing the channel signal with the oscillating signal that is offset, and a filter (203) 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.
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公开(公告)号：EP1808796A2
公开(公告)日：2007-07-18
申请号：EP06124045.3
申请日：2006-11-14
IPC分类号： G06K7/00
CPC分类号： G06K7/0008
摘要： Provided is a reader (120) for radio frequency identification (RFID) and a RFID system. A reader for RFID that receives a channel signal comprises a frequency oscillator (201) generating an oscillating signal at a frequency that is offset by an offset frequency from a center frequency of the channel signal, a mixer (202) mixing the channel signal with the oscillating signal that is offset, and a filter (203) 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： 提供了用于射频识别（RFID）和RFID系统的读取器（120）。 用于接收信道信号的RFID读取器包括：频率振荡器（201），产生频率偏离频道信号的中心频率偏移频率的振荡信号;混频器（202），将频道信号与 偏移的振荡信号，以及对从混频器提供的混频信号进行滤波的滤波器（203）。 用于RFID和RFID系统的阅读器在用于识别电子标签的先听后说（LBT）模式下的波接收中被改进。
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