Communication controller for an active transponder
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United States of America Patent
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Mar 11, 2008
Grant Date -
Aug 18, 2005
app pub date -
Feb 3, 2005
filing date -
Feb 8, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method for processing of encoded information by a battery-powered active transponder is disclosed for the application within a transponder system for the wireless payment of road toll having the steps of receiving modulated microwave radiation of preset frequency by the transponder over the antenna and for obtaining an input signal demodulated for obtaining a binary input data sequence, feeding said binary input data sequence to a digital processor (microcontroller) operated by a processing clock of preset clock frequency for decoding and generating of a binary output data sequence, and forming an output signal from an answer to the received input signal within a certain duration.
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