System and method for information filtering
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United States of America Patent
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Aug 5, 2003
Grant Date -
N/A
app pub date -
Nov 10, 1998
filing date -
Nov 10, 1998
priority date (Note) -
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Abstract
According to an embodiment of the present invention, a fast matching algorithm uses a memory space efficient data structure to accomplish information filtering in a system receiving information, such as a set top box used in conjunction with a television set. The data structure, according to an embodiment of the present invention, may include a node with a plurality of levels of expected values of data fields with an associated index to another node to be used when a matching identification of a particular level is not found. Additionally, according to an embodiment of the present invention, the nodes in this data structure may include a level field which identifies levels which are valid within the node.
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