Re: arith coding patents

our_bobby wrote:

I have been trawling through some of the patents for arithmetic coding and am trying to work out those parts of the coding process that might be patented - given that US patents now expire after 20 years. In particular, I am interested in developing/changing the coder section - the range x High -low calculations -for a particular project that I have been working on. But, do not want to infringe any copyrights. If any one is familiar with patents relating to this aspect of the coding process I would appreciate some comment or guidance.

Which kind of licence do you need? The ELS coder is, for example, available under GPL.

So long,
	Thomas
.

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