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From Brian Behlendorf <>
Subject is something like this really patentable?
Date Fri, 06 Feb 1998 03:01:52 GMT

I could have sworn something like this was in my algorithms textbook in
berkeley CS classes:

>With Internet destination addresses set to increase in size from 32 bits to
>128 bits, computer scientists at Washington University have patented a
>mathematical procedure for speeding up router performance -- a process they
>liken to the game "20 Questions."  The router first divides the address in
>half and compares one half of it to a database.  The router then either
>keeps it or discards it in favor of the other half, and then repeats the
>process.  Using the procedure, a router should be able to find the needed
>information in no more than seven steps.  A number of large router makers
>are negotiating licensing deals with Washington U.  (Business Week 9 Feb 98)

Oh yeah, and you Canadians now have one less reason to feel so superior to
us Americans:

>A secret hearing of Canda's Immigration and Refugee Board was told the
>Canadian government paid $31-million during the early 1980s for
>state-of-the-art software to track Canadian citizens by interfacing with
>credit card transactions, banking data, driver's license information,
>pension records, taxation information, criminal records and immigration
>records, according to transcripts. The U.S.-made Promis system could provide
>details of a person's health care and even library transactions.  Updated
>versions are reportedly still being used by the RCMP and CSIS, but neither
>agency could be reached for comment. (Ottawa Sun 2 Feb 98)


specialization is for insects

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