Address retrieval apparatus

Details Address retrieval apparatus Address retrieval apparatus

H - Electricity

04

L

H04L 12/24 (2006.01) H04L 12/12 (2006.01) H04L 29/02 (2006.01)

Patent

CA 2435821

An address retrieval apparatus includes a retrieval table having plural table nodes for different hierarchical levels of a hierarchical tree structure, a divided bit string retrieval block, and a transfer destination distribution information acquiring block for acquiring a transfer destination distribution information from a transfer destination distribution information table based on a retrieval result supplied from the divided bit string retrieval block. An original bit string providing an inputted route information is divided into plural divided bit strings correspondent to respective brunches with the different hierarchical levels, thereby to do retrieval processes by a sequential use of the plural divided bit strings in the sequence from the bottom level to the top level with shifting up by one level the hierarchical level until the location designation information is retrieved.

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