发明名称 CIRCUIT ARRANGEMENT FOR USE IN RF TRANSPONDERS AND METHOD FOR CONTROLLING A NUMBER OF SUCH TRANSPONDERS
摘要 A storage circuit arrangement for a semi-passive or passive RFID transponder is provided. In prior-art circuit arrangements, storage capacitors are routinely discharged in an undefined fashion via leakage currents for a control mode of the transponder, so that the persistence times depend greatly on the ambient temperature and on existing manufacturing tolerances. It is proposed according to an embodiment to charge a first electrical storage device with a first reference voltage and then to discharge it again in a defined fashion during a time t via discharge device. Advantageously, in addition a storage mode of the first storage device to hold the control mode can be transmitted in a controlled fashion via a switching device to a second storage device with C 2 <<C 1 to shorten a settle time and to accelerate the anticollision.
申请公布号 US2008180219(A1) 申请公布日期 2008.07.31
申请号 US20080968637 申请日期 2008.01.02
申请人 FISCHER MARTIN;FRIEDRICH ULRICH 发明人 FISCHER MARTIN;FRIEDRICH ULRICH
分类号 H04Q5/22 主分类号 H04Q5/22
代理机构 代理人
主权项
地址