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Article #74929

Re: compress algorithm patent

#74929
From: Ozan Yigit
Date: Mon, 28 Jan 1991 20:37
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In article <21267@yunexus.YorkU.CA> oz@yunexus.yorku.ca I wrote:
>... to allow somebody to implement
>his published algorithm and distribute the results?? The latter can be
>done without requiring his permission.

This is appearently wrong, and his code cannot be implemented without his
permission. This becomes rather amusing when one notices that there is no
mention of this patent in Storer's book.

[regarding Y coding]

>... sounds similar to a dictionary coding technique from
>Bentley, Tarjan ...

Gasp, my long-term-reference-memory is beginning to mis-track. Bentley et
al. describe a word-oriented compressor (in CACM 1986, #4) that is adaptive
via a move-the-matching-word-to-front heuristic. It doesn't look anything
like Bernstein Y (why) coding.

oz
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From: oz@yunexus.yorku.ca (Ozan Yigit)
Newsgroups: gnu.misc.discuss
Subject: Re: compress algorithm patent
Message-ID: <21278@yunexus.YorkU.CA>
Date: 28 Jan 91 20:37:58 GMT
References: <CARLTON.91Jan26141644@husc8.harvard.edu> <6617:Jan2723:16:0991@kramden.acf.nyu.edu> <21267@yunexus.YorkU.CA>
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