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Passive RFID transponder and RFID reader

  • US 8,616,456 B2
  • Filed: 03/04/2011
  • Issued: 12/31/2013
  • Est. Priority Date: 03/04/2010
  • Status: Active Grant
First Claim
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1. A passive RFID transponder comprising:

  • a coder configured to generate a digital coded data stream based on a digital data stream to be transmitted, the digital coded data stream including an initialization bit sequence having a maximum data frequency of the digital coded data stream, and to add at least one complementary bit to the digital data stream to be transmitted if the digital data stream to be transmitted does not change its value over more bits than a predefined number of bits; and

    a modulator configured to modulate an amplitude of a carrier signal with the digital coded data stream to provide an amplitude-modulated coded signal.

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