Tag system and methods of use

Systems and methods for operating a tag system. The methods comprise performing the following operations by a tag having an antenna: emitting a signal at a first frequency spectrum, if the tag is not proximate to a tag modulation marker; and emitting a signal at a second frequency spectrum, if the t...

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Bibliographische Detailangaben
Hauptverfasser: Mei, Ping, Veres, Janos
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Systems and methods for operating a tag system. The methods comprise performing the following operations by a tag having an antenna: emitting a signal at a first frequency spectrum, if the tag is not proximate to a tag modulation marker; and emitting a signal at a second frequency spectrum, if the tag is proximate to the tag modulation marker.