Method and apparatus for approximate pattern matching
US7636703B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2006 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Dec 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/71
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for inspecting a data stream for data segments matching one or more patterns each having a predetermined allowable error, which includes filtering a data stream for a plurality of patterns of symbol combinations with a plurality of parallel filter mechanisms, detecting a plurality of potential pattern piece matches, identifying a plurality of potentially matching patterns, reducing the identified plurality of potentially matching patterns to a set of potentially matching patterns with a reduction stage, providing associated data and the reduced set of potentially matching patterns, each having an associated allowable error, to a verification stage, and verifying presence of a pattern match in the data stream from the plurality of patterns of symbol combinations and associated allowable errors with the verification stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.