ross@spam.ua.oz.au (Ross Williams) (06/27/91)
>What is the patent status of said algorithm? [LZRW1-A] > >(He said, holding his breath) Algorithms LZRW1 and LZRW1-A are not patented, nor will be and to the best of knowledge will be free from patent challenge as they are pure LZ77 class algorithms (which are patent clean). >Just what is up? >I cannot find the files lzrw1-a.txt, -a.c, -a.68000, lzrw-headers.h >at this site? [sirius.itd.adelaide.edu.au] Sorry; I have been campaigning my friendly system programmer for a compression directory in our ftp archive (which I can't access directly) and he suddenly did it. He notified me quickly but I didn't get back to comp.compression in time. Here is a list of the files available: Machine : sirius.itd.adelaide.edu.au [IP=129.127.40.3] Directory : pub/compression Files : lzrw1.tex - A paper on LZRW1 algorithm (less diagrams). lzrw1.c - LZRW1 algorithm in C. lzrw1.68000 - LZRW1 algorithm in 68000 assembler. fast_copy.68000 - High speed memory copy in 68000 assembler. dcc91_report - Report on Data Compression Conference. dc_stan_spec - Proposed interface standard. dc_stan_just - Justification of standard. lzrw1-a.txt - Release notes for lzrw1-a algorithm. lzrw1-a.c - LZRW1-A algorithm in C. lzrw1-a.68000 - LZRW1-A algorithm in 68000 assembler. lzrw_headers.h - C header files for LZRW algorithms. All these files are compressed so they will have ".Z" on the end and will have to be uncompressed before use. I wouldn't trust my files to a data compression algorithm, but the system programmer who put the files there for me seems to think that it is a good idea. Ross Williams ross@spam.ua.oz.au