Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!rpi!sigma From: sigma@pawl.rpi.edu (Kevin J Martin) Newsgroups: comp.graphics Subject: Re: New GIF standard available! Message-ID: Date: 4 Sep 90 15:56:10 GMT References: <9008011858.AA28860@jade.berkeley.edu> <1990Aug2.230752.9471@acheron.uucp> Organization: Rensselaer Polytechnic Institute, Troy NY Lines: 18 clarke@acheron.uucp (Ed Clarke/10240000) writes: >From article <9008011858.AA28860@jade.berkeley.edu>, by lwv27@CAS.BITNET: >> Compuserve has made available in their Graphics Support Forum a new >> GIF89a document which details the current standards. Here is a >Hmmmm .... do they mention compression in the new document? The LZW >code seems to be a violation of the UNISYS patent. Perhaps TIFF would >be a better target since the compression method doesn't have to be >LZW and the aspect ratio is already defined in the file. What UNISYS patent?! On the algorithm, or the appellation 'LZW' (which is/are the initials of the authors, Lempel Ziv and Welch)? The algorithm is used by more programs than I can count, including ARC, and ZIP so they might be interested in hearing about the patent. -- Kevin Martin ||| sigma@pawl.rpi.edu ||| usergkj1@RPITSMTS.BITNET