METHOD AND DEVICE FOR THE CONTACT-FREE TRANSMISSION OF DATA FROM AND/OR TO A PLURALITY OF DATA OR INFORMATION CARRIERS, PREFERABLY IN THE FORM OF RFID TAGS
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United States of America Patent
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Issued Date -
Aug 12, 2010
app pub date -
Jul 24, 2008
filing date -
Jul 26, 2007
priority date (Note) -
Abandoned
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Abstract
A method and device for contact-free transmission of data from and/or to a plurality of data or information carriers provide that, after the exchange of information between a read and/or write device and a data or information carrier, said carrier is switched to a standby impedance mode in order to reduce undesired interaction with data or information carriers adjoining the antenna field. This mode differs from an initial impedance mode and communication impedance modes during the emission of an information signal from the data or information carrier.
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