Methods and systems for reducing spillover by detecting signal distortion
AssigneeThe Nielsen Company (US), LLC
InventorChristen V. Nielsen
Life of this patent
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Abstract
Methods, apparatus, and articles of manufacture for reducing spillover in a media monitoring system are disclosed. An example method includes determining an actual frequency spectrum of the media monitored by a meter, and determining absolute values of differences between amplitudes of corresponding frequency components of the actual frequency spectrum and an expected frequency spectrum, the expected frequency spectrum stored in a database in association with a media identifier corresponding to the media. An example method also includes determining whether spillover occurred based on a summation of the absolute values satisfying a threshold, crediting the media with a media exposure if spillover did not occur.
Claims20
A method to credit media presented by a media presentation device, the method comprising:
- determining, via a processor, an actual frequency spectrum of the media monitored by a meter;
- determining, via the processor, absolute values of differences between amplitudes of corresponding frequency components of the actual frequency spectrum and an expected frequency spectrum, the expected frequency spectrum stored in a database in association with a media identifier corresponding to the media;
- determining, via the processor, whether spillover occurred based on a summation of the absolute values satisfying a threshold;
- and
- crediting, via the processor, the media with a media exposure if spillover did not occur.
An apparatus to credit media presented by a media presentation device, the apparatus comprising:
- a frequency spectrum analyzer to determine an actual frequency spectrum of the media monitored by a meter;
- a frequency spectrum comparator to:
- determine absolute values of differences between amplitudes of corresponding frequency components of the actual frequency spectrum and an expected frequency spectrum, the expected frequency spectrum stored in a database in association with a media identifier corresponding to the media;
- determine whether spillover occurred based on a summation of the absolute values satisfying a threshold;
- and
- a media creditor to:
- credit the media with a media exposure if spillover did not occur;
- and
- not credit the media with the media exposure if spillover did occur.
A tangible computer readable storage medium comprising instructions that, when executed, cause a computing device to:
- determine an actual frequency spectrum of the media monitored by a meter;
- determine absolute values of differences between amplitudes of corresponding frequency components of the actual frequency spectrum and an expected frequency spectrum, the expected frequency spectrum stored in a database in association with a media identifier corresponding to the media;
- determine whether spillover occurred based on a summation of the absolute values satisfying a threshold;
- and
- credit the media with a media exposure if spillover did not occur.
Dependencies are inferred from the claim text.