Methods and apparatus to meter content exposure using closed caption information
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United States of America Patent
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Apr 3, 2012
Grant Date -
Dec 20, 2007
app pub date -
Jun 11, 2007
filing date -
Jun 15, 2006
priority date (Note) -
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Abstract
Methods and apparatus to meter content exposure using closed caption information are disclosed. An example method comprises developing a keyword database of terms based on program guide descriptive of programs for a given time period, generating one or more values representative of likelihoods that one or more respective media content was presented based on a comparison of closed caption text and the keyword database, collecting audience measurement data, and employing the one or more likelihood values to identify a set of reference data for comparison to the audience measurement data to identify presented content.
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