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Data transfer method for a scanning identification system

  • US 6,426,692 B1
  • Filed: 06/14/1999
  • Issued: 07/30/2002
  • Est. Priority Date: 09/13/1996
  • Status: Expired due to Term
First Claim
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1. A method of transferring data from a transponder to a reading device in a scanning identification system through load modulation of an inquiry signal emitted by the reading device, with the transponder being initialized at the beginning of the reception of the inquiry signal and responding with the transmission of a response signal, and wherein first a predetermined number of data bits that are not part of the response signal are transmitted, and then a terminator sequence followed by the response signal are repeatedly transmitted until the inquiry signal is interrupted.

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