System for providing a document associated with a video signal
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United States of America Patent
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-
Jan 17, 2006
Grant Date -
Mar 3, 2005
app pub date -
Oct 18, 2004
filing date -
Jun 30, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention enables a user to obtain a document associated with the program content of a video signal. Coded data on a surface is read by a sensing device which generates indicating data which is a request for the document. A computer system receives the indicating data from the sensing device and extracts document identity data from the video signal, in order to retrieve the document.
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