Method and system to detect human interaction with a computer
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United States of America Patent
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Dec 25, 2012
Grant Date -
Jan 20, 2011
app pub date -
Aug 2, 2010
filing date -
Jun 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A system is provided to monitor a user's interaction with a computer. The system may comprise a random reference data generator to generate a random reference string, an image generator to create an image including the random reference string, a modification module to iteratively modify the image until a distortion criterion is satisfied, and a communications module to communicate the image to a client computer for display to a user. The random reference string comprises a plurality of alphanumeric characters.
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