Methods and systems for sharing position data and tracing paths between mobile-device users

  • US 8,798,645 B2
  • Filed: 01/30/2013
  • Issued: 08/05/2014
  • Est. Priority Date: 04/04/2005
  • Status: Active Grant
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First Claim
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1. A method of sharing position data between a first device associated with a first user and a second device associated with a second user, the position data including first position data indicating a first location of the first device and second position data indicating a second location of the second device, the method comprising:

  • communicating with the first device to authenticate the first device as a subscriber to a location-sharing service;

    receiving, from the first device, a request for a token, the token to allow the first device to authorize a position-sharing relationship between the first and second devices;

    sending the requested token to the first device, thereby allowing the first device to share the token with the second device;

    receiving, from the second device, an assent to share the second position data, the assent including the requested token;

    receiving the second position data from the second device;

    calculating a path between the first position and the second position, the path including waypoints;

    transmitting the path to the first device and the second device;

    receiving updated position data from one of the first device and the second device;

    recalculating the path based on the updated position data; and

    transmitting the recalculated path to the first device and the second device.

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