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Near field authentication through communication of enclosed content sound waves

DC CAFC
  • US 9,564,952 B2
  • Filed: 01/04/2013
  • Issued: 02/07/2017
  • Est. Priority Date: 02/06/2012
  • Status: Active Grant
First Claim
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1. A method for near field authentication of a source, the source using an audio transceiver computing device, the method comprising:

  • scanning a plurality of predetermined frequencies for a free frequency;

    selecting the free frequency from the plurality of predetermined frequencies;

    generating a periodic enclosed content message;

    generating a modulated carrier wave representing the periodic enclosed content message; and

    transmitting the modulated carrier wave at the free frequency;

    wherein each period of the periodic enclosed content message includes a begin indication, a content, and an end indication;

    wherein the content includes biometric data and a bit array, the bit array being derived from user-configurable and non-user-configurable data specific to the audio transceiver computing device; and

    wherein the modulated carrier wave comprises a sound wave.

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