Method for testing transponders
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United States of America Patent
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Jun 23, 2015
Grant Date -
Oct 4, 2012
app pub date -
Oct 6, 2010
filing date -
Oct 9, 2009
priority date (Note) -
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Abstract
A method for testing remote transponders. In the method, a radio-frequency transponder is excited by sending an excitation command having a minimum threshold transmission power with the aid of a first electromagnetic field and the response of the radio-frequency transponder to the excitation command is measured with the aid of a second electromagnetic field in order to test if a corresponding received power threshold is exceeded. One of the fields is a radiating field and the other of the fields is a reactive field. The need to test transponders separately from other transponders and the need to inactivate or screen other transponders in the vicinity of the transponder being measured is eliminated.
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