Address recognition engine with look-up database for storing network information
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
Jan 10, 1992
filing date -
Jan 10, 1992
priority date (Note) -
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Abstract
The present invention is directed to an address recognition apparatus including an address recognition engine coupled to a look-up database. The look-up database is arranged to store network information relating to network addresses. The look-up database includes a primary database and a secondary database. The address recognition engine accepts as an input a network address for which network information is required. The address recognition engine uses the network address as an index to the primary database. The primary database comprises a multiway tree node structure (TRIE) arranged for traversal of the nodes as a function of preselected segments of the network address and in a fixed sequence of the segments to locate a pointer to an entry in the secondary database. The entry in the secondary database pointed to by the primary database pointer contains the network information corresponding to the network address. The address recognition engine includes a table for storing a plurality of database specifiers. Each of the database specifiers contains control information for the traversal of the primary and secondary databases. In addition, each of the nodes in the primary database and each of the entries in the secondary database is provided with control data structures that are programmable to control the traversal of the database.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ENTERASYS NETWORKS, INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bryant, Stewart F | Redhill, GB2 | 33 | 2677 |
Morgan, Fearghal | Moycullen, IE | 3 | 299 |
O'Callaghan, Joseph | Glounthaune, IE | 2 | 276 |
Quinlan, Una M | Dublin, IE | 4 | 325 |
Rigby, John | Reading, GB2 | 9 | 369 |
Seaman, Michael J | San Jose, CA | 25 | 2334 |
Walton, Andrew | Reading, GB2 | 8 | 334 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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