Methods and systems to monitor a media device using a digital audio signal
AssigneeThe Nielsen Company (US), LLC
InventorChuck Conklin
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Abstract
Methods and systems are disclosed to monitor a media device. An example method includes attempting to detect a transition in a digital audio signal output by a port of the media device. If the transition is detected, the example method includes determining the media device is in an on state. If the transition is not detected, the example method includes determining the media device is in an off state.
Claims30
A method to monitor a media device comprising:
- attempting to detect a transition in a digital audio signal output by a port of the media device;
- if the transition is detected, determining the media device is in an on state;
- and
- if the transition is not detected, determining the media device is in an off state.
A method to monitor a media device comprising:
- attempting to collect audio from a digital signal output by a port of the media device;
- if the audio is collected, determining the media device is in an on state;
- and
- if the audio is not collected, determining the media device is in an off state.
A system to monitor a media device comprising:
- a transition detector to attempt to detect a transition in a digital audio signal output by a port of the media device;
- wherein
- if the transition is detected, the transition detector is to determine the media device is in an on state;
- and
- if the transition is not detected, the transition detector is to determine the media device is in an off state.
A system to monitor a media device comprising:
- an audio determiner to attempt to collect audio from a digital signal output by a port of the media device;
- wherein
- if the audio is collected, the audio determiner is to determine the media device is in an on state;
- and
- if the audio is not collected, the audio determiner is to determine the media device is in an off state.
A tangible computer-readable medium comprising instructions that, when executed, cause a computing device to at least:
- attempt to detect a transition in a digital audio signal output by a port of a media device;
- if the transition is detected, determine the media device is in an on state;
- and
- if the transition is not detected, determine the media device is in an off state.
A tangible computer-readable medium comprising instructions that, when executed, cause a computing device to at least:
- attempt to collect audio from a digital signal output by a port of the media device;
- if the audio is collected, determine the media device is in an on state;
- and
- if the audio is not collected, determine the media device is in an off state.
Dependencies are inferred from the claim text.