Shielded contactless electronic document
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United States of America Patent
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Apr 20, 2010
Issued Date -
N/A
app pub date -
Apr 1, 2005
filing date -
Jun 16, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A document which includes a cover, one or more internal pages, a radiofrequency microcontroller, an antenna electrically connected to the radiofrequency microcontroller, an electromagnetic shield capable of partially disrupting wireless communication with the radiofrequency microcontroller when the document is closed, and not disrupting the wireless communication when the document is opened is described. The electromagnetic shield included in the document is implemented using metal, conductive plastic, conductive ink or magnetic ink.
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