Passive microwave tag identification system
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United States of America Patent
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Sep 28, 2004
Grant Date -
N/A
app pub date -
Oct 4, 1999
filing date -
Oct 4, 1999
priority date (Note) -
Expired
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Abstract
A system for identification and tracking of microwave responsive tags, the system comprising, a microwave responsive tag having a passive modulating element to uniquely backscatter directed microwave beams, a microwave base station for directing microwave beams in room sized areas, and a tag tracking system receiving input from the microwave base station, the tag tracking system storing state records of position and informational content of the microwave tag.
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