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Transponder reader capable of reading transponders having different signaling protocols

  • US 20060261928A1
  • Filed: 04/07/2004
  • Published: 11/23/2006
  • Est. Priority Date: 04/14/2003
  • Status: Abandoned Application
First Claim
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1. A transponder reader arranged to read data from transponders, wherein each of said transponders send data according to one transponder signalling protocols, said transponder signalling protocol is selected from a number of different transponder signalling protocols, and a first and a second transponder signals according to the same or different protocols, said transponder reader comprises an antenna means for sending a first analogue signal to one of said transponders and receiving a second analogue signal from said transponders, and said transponder reader further comprises means for analysing said signal received by said antenna means wherein said transponder reader comprises a digital processing means, said transponder reader comprises an analogue to digital converter arranged to receive said second analogue signal from said second analogue signal to supply said first digital processing means, said digital processing means comprises analysing means arranged to analyse said received digital signals according to at least two different transponder signalling protocols.

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