发明名称 Method and apparatus for controlled persistent ID flag for RFID applications
摘要 A Radio-Frequency Identification (RFID) transponder is provided. The RFID transponder may include a basic ID flag circuit having a VDD voltage node, an output voltage node, and a capacitor coupled to the VDD voltage node and the output voltage node to store an ID flag. A supplemental discharge current circuit coupled to the basic ID flag circuit is provided in order to control persistence duration of the state of the ID flag. The persistence duration of the state of the ID flag is controlled by maintaining supplemental discharge current, which is greater than the leakage current of the basic ID flag circuit.
申请公布号 US7215251(B2) 申请公布日期 2007.05.08
申请号 US20040887617 申请日期 2004.07.08
申请人 IMPINJ, INC. 发明人 HYDE JOHN D.
分类号 G08B21/00;G06K19/07;G11C5/00;H04Q5/22 主分类号 G08B21/00
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