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Associative database scanning and information retrieval

  • US 7,552,107 B2
  • Filed: 01/08/2007
  • Issued: 06/23/2009
  • Est. Priority Date: 04/07/2000
  • Status: Expired due to Fees
First Claim
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1. A data processing system comprising:

  • a mass storage medium in which data is stored; and

    an approximate matching unit processor in communication with the mass storage medium, wherein the approximate matching unit processor is configured to (1) receive a continuous stream of data from the mass storage medium, and (2) process the data stream to determine whether an approximate match exists via a comparison between the key and the data stream, wherein the approximate matching unit processor is further configured to perform the comparison by calculating a correlation coefficient that is indicative of a degree of correlation between the key and the data stream, and wherein the approximate matching unit processor is further configured to determine that an approximate match exists if the correlation coefficient has a value larger than or at least equal to a predetermined threshold value.

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