System and method for locating a route in a route table using hashing and compressed radix tree searching
US5946679A · kind A · utility
130Cited by
3References
31Claims
0Family size
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Inventors
Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99937
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus searches table information using keys of varying lengths. Based on criteria, the method selects one of three processes for performing the search. The first routine is a reverse hash search process which is useful for searching information with few key lengths. The second process is a hierarchical search routine which is useful for searching information with many key lengths. The third process is a compressed radix tree search which is useful for searching information that presents significant time barriers to the first two routines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.