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Circuit arrangement and method for increasing the functional range of a transponder

  • US 20050122651A1
  • Filed: 11/30/2004
  • Published: 06/09/2005
  • Est. Priority Date: 12/03/2003
  • Status: Active Grant
First Claim
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1. A circuit arrangement for increasing a transmission or response range of a device which receives its operating energy from a source, said circuit arrangement comprising an input for receiving said operating energy for providing an operating voltage (VDD), a voltage converter (3) for converting said operating voltage (VDD) into a function voltage (VPP) for performing a function sequence, said circuit arrangement further comprising a voltage processing circuit (4) including a determination circuit section (4.7) connected to an output of said voltage converter (3), for determining at least one characteristic of said function voltage (VPP) to provide an output value (xVPP) representing said at least one characteristic, and a valuation circuit section (4.8) connected to said determination circuit section (4.7) for evaluating and thereby confirming or rejecting a result of said performing of said function sequence in response to said at least one characteristic of said function voltage (VPP).

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