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DEVICES, METHODS, AND APPARATUSES FOR COMPUTING ROUND-TRIP TIME OF A MESSAGE

  • US 20140253386A1
  • Filed: 03/11/2013
  • Published: 09/11/2014
  • Est. Priority Date: 03/11/2013
  • Status: Abandoned Application
First Claim
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1. A method, comprising, at a mobile device comprising a transceiver:

  • placing a first antenna into proximity with a second antenna coupled to a transponder;

    transmitting, through said first antenna, coupled to said transceiver, a first message comprising a first time-stamp;

    providing a second time-stamp in response to receipt of a second message transmitted by said transponder in response to said first message, said second message comprising said first time-stamp; and

    estimating a processing latency based, at least in part, on comparing said first and second time-stamps.

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