Dual mode proximity and in-range smart card data transaction system
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United States of America Patent
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Mar 20, 2001
Grant Date -
N/A
app pub date -
Jun 9, 1998
filing date -
Apr 3, 1998
priority date (Note) -
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Abstract
A data transaction system for process monitoring, with smart cards of the ISO geometric dimensions, featuring contact and bi-directional inductive coupling communication, for collecting and storing data. The system comprises fixed triggering stations for short range data transfer with the smart cards in response to emissions from sensors. The sensors report data related to variables such as location, device status, operation sequencing and time. A send-and-receive station allows for downloading of the stored data and for loading instruction sets in contact or contactless mode. The smart cards comprise a signal amplifier, transceivers, a processor, memories, timer, an on-board battery, cognizable non-compliance warning, optional feedback and energy saving procedures.
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