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Method and system for long term monitoring of video assets

  • US 8,352,994 B2
  • Filed: 08/31/2010
  • Issued: 01/08/2013
  • Est. Priority Date: 08/31/2010
  • Status: Active Grant
First Claim
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1. A method for monitoring an output channel of a multimedia content distribution network (MCDN), comprising:

  • acquiring, at a predetermined frame rate, a selected baseband video signal output by a multimedia handling device (MHD) configured as a terminal device of the MCDN, wherein a series of frame images are generated according to the frame rate;

    selecting a current image and a next image in the series of frame images;

    when a difference between the next image and the current image is below a given threshold, detecting a video freeze event associated with the MHD;

    acquiring, at a predetermined sampling rate, at least one audio track generated by the MHD and corresponding to the selected baseband video signal, wherein audio data are generated according to the sampling rate;

    when a signal power of a portion of the audio data corresponding to the current image and the next image is below a given threshold, detecting an audio freeze event associated with the MHD;

    when the video freeze event and the audio freeze event are both detected, sending a first network command to power down the MHD;

    sending a second network command to power up the MHD; and

    recording a freeze alert for the MHD, including recording an indication of the video freeze event and the audio freeze event.

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