Z:gnu-www-ja-stallman-mec-india--70c943-A copyright deals with a parti/en

A copyright deals with a particular work, usually a written work, and it has to do with the details of that work. Ideas are completely excluded. Patents, by contrast &mdash; well, a patent covers an idea. It's that simple, and any idea that you can describe, that's what a patent might restrict you from doing.