Comparison tree data structures of particular use in performing lookup operations
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United States of America Patent
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Aug 19, 2008
Grant Date -
Nov 18, 2004
app pub date -
May 13, 2003
filing date -
May 13, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Comparison tree data structures of particular use in performing lookup operations are disclosed. A data structure typically includes first and second elements of a subtree, the subtree including a root node. The first and the second elements each include: a node value field for indicating one or more paths from the root node through the subtree for reaching the respective first or second element. The first node also includes a next node indication for use in traversing to the second element. Additionally, one embodiment identifies a lookup value, wherein lookup value includes a first lookup path and a next portion of the lookup value. A first node including a first node value is identified, with the first node value. The first node value is compared with the first lookup path to identify that a matching child node has been identified.
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