Methods and apparatus to distinguish a signal originating from a local device from a broadcast signal
AssigneeThe Nielsen Company (US), LLC
InventorsArun Ramaswamy, Dan Nelson
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Abstract
Methods and apparatus to distinguish a signal originating from a local device from a broadcast signal are disclosed. A disclosed example method includes analyzing a first predetermined characteristic of a video component of the audio-video signal to generate a first indication of the source of the audio-video signal, analyzing a second predetermined characteristic of an audio component of the audio-video signal to generate a second indication of the source of the audio-video signal, and determining if the audio-video signal was generated by a local device based on the first and second indications.
Claims20
A method of identifying a source of an audio-video signal, the method comprising:
- analyzing a first predetermined characteristic of a video component of the audio-video signal to generate a first indication of the source of the audio-video signal;
- analyzing a second predetermined characteristic of an audio component of the audio-video signal to generate a second indication of the source of the audio-video signal;
- and
- determining if the audio-video signal was generated by a local device based on the first and second indications.
An apparatus to classify an audio-video signal, the apparatus comprising:
- a video/audio classifier to identify the audio-video signal as a locally generated signal or a broadcast signal;
- a video codec responsive to a determination that the audio-video signal is a locally generated signal to at least one of capturing a video frame or compressing a video frame;
- and
- an optical character recognition engine responsive to the determination that the audio-video signal is a locally generated signal to attempt to extract on-screen text from the video frame captured by the video codec.
A machine readable medium storing instructing that, when executed, cause a machine to identify a source of an audio-video signal by:
- analyzing a first predetermined characteristic of a video component of the audio-video signal to generate a first indication of the source of the audio-video signal;
- analyzing a second predetermined characteristic of an audio component of the audio-video signal to generate a second indication of the source of the audio-video signal;
- and
- determining if the audio-video signal was generated by a local device based on the first and second indications.
Dependencies are inferred from the claim text.