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Ad hoc one-time pairing of remote devices using online audio fingerprinting

  • US 10,074,374 B2
  • Filed: 04/07/2014
  • Issued: 09/11/2018
  • Est. Priority Date: 04/07/2014
  • Status: Active Grant
First Claim
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1. A method for setting up data channels in parallel to an existing voice communication, the method comprising:

  • automatically one-time ad-hoc setting up data channels in parallel to the existing voice communication between first and second user equipment of first and second users, respectively, the data channel being adapted for exchanging electronic data;

    creating a first fingerprint of first ad-hoc real time audio signals of the voice communication at the first user equipment and a second fingerprint of second ad-hoc real-time audio signals of the voice communication at the second user equipment, the first and second ad-hoc real-time audio signals being exchanged between the two users;

    sending the first and second fingerprints using the first user equipment and the second user equipment to a central matching service in small batches;

    comparing the first and second fingerprints with each other in accordance with a matching algorithm, and if the comparing meets a requirement of matching similarity, receiving a user action authenticating the data channel across a second network,wherein before the comparing the first and second fingerprints in accordance with the matching algorithm there is an anonymizing function.

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