DP Pattern matching which determines current path propagation using the amount of path overlap to the subsequent time point
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United States of America Patent
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May 1, 2001
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N/A
app pub date -
Feb 8, 1999
filing date -
Feb 10, 1998
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Abstract
A method and apparatus for matching a first sequence of patterns representative of a first signal with a second sequence of patterns representative of a second signal using a dynamic programming matching technique is described. The second signal patterns which are at the end of a dynamic programming path for a current first signal pattern are listed in an active list 201. The dynamic programming paths are propagated by processing the second signal patterns on the active list, and a new active list 205 is generated for the succeeding input pattern. In order to propagate each path, the system determines how many second signal patterns lie within an overlap region in which a comparison has to be made, and processes each path in dependence upon the determined amount of overlap.
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