Ultra wideband radio frequency identification techniques

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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C340S572100, C340S572400

Reexamination Certificate

active

07733229

ABSTRACT:
Ultra wideband (UWB) techniques are applied to radio frequency identification (RFID). For instance, a reader generates a UWB IR interrogation signal, and receives a UWB IR reply signal from an RFID tag in response to the interrogation signal. In addition, the reader may generate from the UWB IR reply signal a baseband response sequence. This sequence includes at least a tag identifier. A reader may store at least a tag identifier. Upon receipt of a UWB IR interrogation signal, the tag obtains a plurality of clock pulses from the UWB IR interrogation signal. Based on the plurality of clock pulses, the reader transmits at least the tag identifier in a UWB IR response signal.

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Korena Office Action issued on Jun. 23, 2009 in KR Application No. KR 2009-7005949 by the Korean Patent Office.

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