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Mobile device locking

  • US 10,368,245 B2
  • Filed: 10/16/2018
  • Issued: 07/30/2019
  • Est. Priority Date: 04/24/2017
  • Status: Active Grant
First Claim
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1. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a mobile computer device to cause the mobile computer device to:

  • transmit synchronization information to a remote mobile computer device;

    receive synchronization response data from the remote mobile computer device based on transmitting the synchronization information;

    transmit a tone to a surface of an object based on receiving the synchronization response data;

    receive a compound resonance frequency from the object based on the transmitted tone;

    determine the received compound resonance frequency conforms to a stored compound resonance frequency; and

    unlock the mobile computer device based on the determining.

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