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Authentication and authorization in a wearable ensemble

  • US 9,578,504 B2
  • Filed: 12/12/2014
  • Issued: 02/21/2017
  • Est. Priority Date: 12/12/2014
  • Status: Active Grant
First Claim
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1. A system for authenticating a wearable device, the system comprising:

  • an access module to access a second wearable device from a first wearable device, the first and second wearable devices being worn by a wearer and the first wearable device being a trusted device to the wearer;

    a measurement module to measure a distance from the first wearable device to the second wearable device, wherein to measure the distance from the first wearable device to the second wearable device, the measurement module is to;

    transmit an initial data packet from the first wearable device to the second wearable device;

    receive a response data packet from the second wearable device at the first wearable device;

    measure a round-trip time from based on the transmit time of the initial data packet and the receipt time of the response data packet; and

    calculate the distance based on the round-trip time; and

    an authentication module to authenticate the second wearable device when the distance is within a threshold range of an initialized distance.

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