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Media monitoring using multiple types of signatures

  • US 9,106,952 B2
  • Filed: 06/09/2014
  • Issued: 08/11/2015
  • Est. Priority Date: 03/26/2012
  • Status: Active Grant
First Claim
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1. A media monitoring method comprising:

  • reporting, from a device meter to a data processor, media signatures of a first type to monitor media presented by a media device, the media signatures of the first type being generated by the device meter from a sensed signal;

    after receiving, from the data processor, an indication that a first media signature of the first type is associated with first reference media, generating, at the device meter, media signatures of a second type, different from the first type, from the sensed signal to continue monitoring the media presented by the media device; and

    in response to detecting, at the device meter, that a source of the media presented by the media device has changed, generating the media signatures of the first type to continue monitoring the media presented by the media device.

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