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Methods and apparatus for metering portable media players

  • US 9,514,135 B2
  • Filed: 10/31/2014
  • Issued: 12/06/2016
  • Est. Priority Date: 10/21/2005
  • Status: Active Grant
First Claim
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1. A method of monitoring media presented by a portable media presentation device, comprising:

  • retrieving, by executing an instruction with a processor, a frame tag code from a corresponding frame of the media, the frame tag code associated with the corresponding frame of the media presented by the portable media presentation device, the frame tag code including a frame tag code value that indicates a number of times the frame of the media has been presented via the portable media presentation device;

    after the corresponding frame of the media has been presented, incrementing, by executing an instruction with the processor, the frame tag code value when a playback-time of the media corresponds to a frame tag code time offset value; and

    storing, by executing an instruction with the processor, the frame tag code, with the incremented frame tag code value, in the corresponding frame of the media.

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