Gathering research data
First Claim
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1. A method of gathering research data in a portable audience monitoring device, comprising:
- receiving time domain audio media data in a portable audience monitoring device of an audience member;
converting the time domain audio media data to frequency domain data, wherein the frequency domain data comprises a first plurality of frequency bands and a second plurality of frequency bands, and wherein each of the second plurality of frequency bands are wider than each of the first plurality of frequency bands; and
processing the frequency domain data for reading an ancillary code from the first plurality of frequency bands and for extracting a signature from the second plurality of frequency bands.
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Abstract
Methods and systems are provided for gathering research data. Frequency domain data is received or produced, a signature is extracted from the frequency domain data and an ancillary code is read from the frequency domain data.
109 Citations
27 Claims
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1. A method of gathering research data in a portable audience monitoring device, comprising:
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receiving time domain audio media data in a portable audience monitoring device of an audience member; converting the time domain audio media data to frequency domain data, wherein the frequency domain data comprises a first plurality of frequency bands and a second plurality of frequency bands, and wherein each of the second plurality of frequency bands are wider than each of the first plurality of frequency bands; and processing the frequency domain data for reading an ancillary code from the first plurality of frequency bands and for extracting a signature from the second plurality of frequency bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A portable research data gathering device, comprising:
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an input arranged to receive time domain audio media data; and a processor coupled with the input to receive the time domain audio media data therefrom and configured to convert the time domain audio media data to frequency domain data, wherein the frequency domain data comprises a first plurality of frequency bands and a second plurality of frequency bands, and wherein each of the second plurality of frequency bands are wider than each of the first plurality of frequency bands; and processing the frequency domain data for reading an ancillary code therefrom from the first plurality of frequency bands and for extracting a signature therefrom from the second plurality of frequency bands. - View Dependent Claims (24, 25)
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26. A method of gathering research data, comprising:
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receiving media data in a portable audience monitoring device; converting the media data to a frequency domain to produce frequency domain data, wherein the frequency domain data comprises a first plurality of frequency bands and a second plurality of frequency bands, and wherein each of the second plurality of frequency bands are wider than each of the first plurality of frequency bands; and extracting a signature from the second plurality of frequency bands and reading an ancillary code from the first plurality of frequency bands.
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27. A method of gathering research data concerning usage of and/or exposure to media data, comprising:
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receiving frequency domain data comprising data representing magnitudes of the media data in different respective frequency bands, wherein the frequency domain data comprises a first plurality of frequency bands and a second plurality of frequency bands, and wherein each of the second plurality of frequency bands are wider than each of the first plurality of frequency bands; and reading an ancillary code from the first plurality of frequency bands and extracting a signature from the second plurality of frequency bands.
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Specification