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inhaltsadressierter memory with hierarchically structured trefferleitungen and on the conversion of decimal in blocks of bits based search engine
inhaltsadressierter memory with hierarchically structured trefferleitungen and on the conversion of decimal in blocks of bits based search engine
PROBLEM TO BE SOLVED: To reduce a required entry number and improve the memory capacity of a TCAM by memorizing efficiently an IP address of which a range is specified.;SOLUTION: One of typical means of this invention is as follows. Namely, memory information (entry) and input information (comparison information or a retrieval key) are made common block codes in which either bit surely serves as a logical value '1'. A match line is made a hierarchical structure and a memory cell is arranged at an intersection of a plurality of sub-match lines and a plurality of search lines. Furthermore, the sub-match line is connected to each main match line through a sub-match determination circuit, and a main match determination circuit is arranged for the main match line.;COPYRIGHT: (C)2005,JPO&NCIPI
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