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Athletic watch

  • US 9,891,596 B2
  • Filed: 09/17/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 04/26/2009
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a sensor configured to detect movement of a user;

    a communication connector;

    a processor; and

    a non-transitory computer-readable memory storing computer-readable instructions that,when executed by the processor, cause the processor to at least;

    establish a connection between the device and a server through the communication connector;

    detect a version of an ephemeris of location determination satellite data stored on the server;

    detect a location of the server;

    upon detecting that the server is located within a range of the device and that the version of an ephemeris of location determination satellite data stored on the server is more updated than an ephemeris stored on the device, initiate an ephemeris acquisition process in which the ephemeris of location determination satellite data stored on the server is acquired and stored on the device; and

    using the acquired ephemeris to detect a location of the user using the sensor.

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