Systems and methods for measuring interest levels of audience in broadcast program and providing information based on the interest levels
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United States of America Patent
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Jul 7, 2015
Grant Date -
Nov 26, 2009
app pub date -
Oct 31, 2005
filing date -
Sep 29, 2004
priority date (Note) -
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Abstract
A system measures interest levels of audience in a broadcast program and provides extra information based on the interest level. The system receives an AV signal of a broadcast program and supplementary content which contains broadcast program related information and a tag identifying the broadcast program. The supplementary content is combined with the AV signal to form a data-augmented signal which is subsequently modulated with a carrier signal to form a transmit signal for broadcasting to receivers. Each receiver extracts the supplementary content, computes interest levels and provides extra information based on the interest levels.
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