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Power efficient proximity detection

  • US 9,820,095 B2
  • Filed: 04/02/2014
  • Issued: 11/14/2017
  • Est. Priority Date: 04/02/2014
  • Status: Active Grant
First Claim
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1. An electronic device, comprising:

  • a processor; and

    a memory coupled to the processor and comprising computer readable program code embodied in the memory that when executed by the processor causes the processor to perform operations comprising;

    receiving, at the electronic device, first location information of a first mobile terminal, wherein the first location information comprises at least one of a cellular position and a Wi-Fi access point identifier;

    receiving, at the electronic device, second location information of a second mobile terminal, wherein the second location information comprises at least one of a cellular position and a Wi-Fi access point identifier;

    determining whether the first mobile terminal is in a same short-range wireless transmission area as the second mobile terminal based on a comparison of the first location information with the second location information; and

    responsive to a determination that the first mobile terminal is in the same short-range wireless transmission area as the second mobile terminal, sending an instruction to the first mobile terminal instructing the first mobile terminal to send a notification addressed to the second mobile terminal using a short-range wireless transmission protocol, the short-range wireless transmission protocol comprising a short-range wireless transmission area with a maximum radius of about 10 m,wherein the instruction further instructs the first mobile terminal to send the notification while scanning for other devices using the short-range wireless transmission protocol is turned off for the first mobile terminal.

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