Interrogator, transponder and transponder identification method
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United States of America Patent
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Jun 5, 2012
Grant Date -
Aug 30, 2007
app pub date -
Aug 16, 2006
filing date -
Feb 10, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is provided an interrogator, transponder, and transponder identification method, which shorten processing time for identification. An interrogator that makes wireless communication with a transponder, comprising: a temporary number specify section that transmits a request for transmission of a unit bit string as a bit string having a predetermined length in a bit string expressing a temporary number owned by the transponder, receives a unit bit sting transmitted from the transponder in response to the request, and specifies the temporary number of the transponder, based on the unit bit string; and an identification information obtaining section that transmits, if a temporary number of a transponder is specified by the temporary number specify section, a request for transmission of identification information of the transponder to the transponder, and receives the identification information transmitted from the transponder, in response to the request.
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