Contactless integrated circuit card with real-time protocol switching function and card system including the same
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United States of America Patent
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Apr 19, 2011
Grant Date -
Mar 17, 2005
app pub date -
Sep 14, 2004
filing date -
Sep 15, 2003
priority date (Note) -
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Abstract
A contactless integrated circuit (IC) card can include: an analog interface block operable to demodulate a received radio frequency (RF) signal into multiple versions thereof according to a first plurality of communication protocols, respectively; a controller operable to select from among a second plurality of communication protocols; and a universal asynchronous receiver/transmitter (UART) operable to select one of the demodulated versions of the RF signal according to the selected protocol.
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