发明名称 Method for selecting and writing into RFID-transponders
摘要 Method and system for reading out and writing to RFID-transponders with inductive coupling including a read/write unit with a transmission frequency fs1 defined as a basic transmission frequency and a plurality of transponders operated at a resonance frequency fR. The resonance frequency fR is fixedly predetermined, then for operating conditions with a high distance range, the resonance frequency fR equal to the basic transmission frequency fs1 is selected. For operating conditions with a high recognition rate with a plurality of transponders located within a detection field, the basic transmission frequency fs1 is reduced to a fixed alternative value fs2 . This procedure guarantees reliable communication between the transponders and the read/write unit.
申请公布号 US6639514(B1) 申请公布日期 2003.10.28
申请号 US20020049630 申请日期 2002.02.25
申请人 LUCATRON AG 发明人 MUELLER PHILIPP
分类号 G06K19/07;G06K7/00;H04B1/59;H04B5/02;(IPC1-7):G08B13/14;H04Q5/22;G06E17/60 主分类号 G06K19/07
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