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System and method for alerting a first mobile data processing system nearby a second mobile data processing system

  • US 9,100,793 B2
  • Filed: 12/05/2011
  • Issued: 08/04/2015
  • Est. Priority Date: 06/07/2000
  • Status: Expired due to Term
First Claim
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1. A data processing method comprising:

  • determining, by a data processing device, a first situational location of a first mobile data processing device, the first situational location determined by proximity of the first mobile data processing device to an antenna station in a region;

    determining, by the data processing device, a second situational location of a second mobile data processing device, the second situational location determined by proximity to the first mobile data processing device;

    determining, by the data processing device, whether there is a predefined relationship between the first mobile data processing device and the second mobile data processing device that is known to the second mobile data processing device;

    responsive to determining that there is predefined relationship;

    determining, by the data processing device, first content as being relative to the predefined relationship and the region; and

    sending, by the data processing device, the first content to the second mobile data processing device.

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