Samsung HMX-W300YN-XAA - Manual (Page 11)

by the usual distribution terms of the Free Software Foundation; principally, that you must
include source code if you redistribute it. (See the file ansi2knr.c for full details.) However,
since ansi2knr.c is not needed as part of any program generated from the IJG code, this
does not limit you more than the foregoing paragraphs do.
The Unix configuration script "configure" was produced with GNU Autoconf. It is copyright
by the Free Software Foundation but is freely distributable. The same holds for its
supporting scripts (config.guess, config.sub,
ltconfig, ltmain.sh). Another support script, install-sh, is copyright by M.I.T. but is also freely
distributable.
It appears that the arithmetic coding option of the JPEG spec is covered by patents owned
by IBM, AT&T, and Mitsubishi. Hence arithmetic coding cannot legally be used without
obtaining one or more licenses. For this reason, support for arithmetic coding has been
removed from the free JPEG software. (Since arithmetic coding provides only a marginal
gain over the unpatented Huffman mode, it is unlikely that very many implementations will
support it.)
So far as we are aware, there are no patent restrictions on the remaining code.
The IJG distribution formerly included code to read and write GIF files. To avoid
entanglement with the Unisys LZW patent, GIF reading support has been removed
altogether, and the GIF writer has been simplified to produce "uncompressed GIFs". This
technique does not use the LZW algorithm; the resulting GIF files are larger than usual, but
are readable by all standard GIF decoders.
We are required to state that "The Graphics Interchange Format(c) is the Copyright property
of CompuServe Incorporated. GIF(sm) is a Service Mark property of CompuServe
Incorporated."