METHODS AND APPARATUS FOR MULTI-LEVEL DYNAMIC SECURITY SYSTEM
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United States of America Patent
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Issued Date -
Apr 28, 2011
app pub date -
Dec 30, 2010
filing date -
Apr 9, 2003
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Abandoned
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Abstract
Methods and apparatus for converting original data into a plurality of sub-bands using wavelet decomposition; encrypting at least one of the sub-bands using a key to produce encrypted sub-band data; and transmitting the encrypted sub-band data to a recipient separately from the other sub-bands.
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