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Negotiating communication parameters between near field communications (NFC) capable devices

  • US 8,831,512 B2
  • Filed: 06/28/2011
  • Issued: 09/09/2014
  • Est. Priority Date: 06/28/2011
  • Status: Active Grant
First Claim
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1. A method for negotiating a communication parameter between near field communications (NFC) capable communication devices, comprising:

  • maintaining, by a first NFC capable communication device, an unmodulated data communication at a first power for a first duration in accordance with the communication parameter;

    receiving, by the first NFC capable communication device, a request communication from a second NFC capable communication device during the first duration indicating that the first communication parameter is insufficient;

    adjusting, by the first NFC capable communication device, the communication parameter in accordance with the request communication during the first duration to provide a second communication parameter; and

    providing, by the first NFC capable communication device, a second unmodulated data communication at a second power during a second duration in accordance with the second communication parameter, the second power being different from the first power.

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