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CONTENT DELIVERY BASED ON A LIGHT POSITIONING SYSTEM

  • US 20130141555A1
  • Filed: 02/08/2012
  • Published: 06/06/2013
  • Est. Priority Date: 07/26/2011
  • Status: Active Grant
First Claim
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1. A method of determining a position of a mobile device when the mobile device is at a location remote from a server, the remote server using an identifier broadcast from one of a plurality of asynchronous light sources in modulated light, each of the plurality of asynchronous light sources corresponding to one of a plurality of locations, the method comprising:

  • receiving at the remote server, via the Internet, geo-location information of the mobile device from the mobile device, wherein the geo-location information comprises an approximate geographical location of the mobile device;

    determining, based on the geo-location information, a group of the plurality of asynchronous light sources in a location of the plurality of locations, the location corresponding to the approximate geographical location of the mobile device;

    receiving at the remote server, via the Internet, the identifier from the mobile device;

    determining, based on the identifier and the geo-location information received from the mobile device, a map that identifies positions of light sources of the group of the plurality of asynchronous light sources in the location;

    calculating, based on the identifier and the map, position information that identifies the position of the mobile device within the location; and

    sending the position information and the map to the mobile device, the map enabling the mobile device to locate the position of the mobile device within the location.

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