Issues With Patents and Open Source
Patents remain a problem for any open-source GSM implementation, because it is not possible for GNU or any other free software distributor to guarantee immunity from all lawsuits by the patent holders against the users. Furthermore new features are being added to the standard all the time which means they have patent protection for a number of years.
The original GSM implementations from 1991 may now be entirely free of patent encumbrances, however patent freedom is not certain due to the US "first to invent" system that was in place until 2012. The "first to invent" system, coupled with "patent term adjustment" can extend the life of a US patent far beyond 20 years from its priority date. It is unclear at this time whether OpenBTS will be able to implement features of that initial specification without limit. However, as patents subsequently expire, those features can be added into the open source version. As of 2011, there have been no law suits against users of OpenBTS over GSM use.
Famous quotes containing the words source, open and/or issues:
“The practice of S/M is the creation of pleasure.... And thats why S/M is really a subculture. Its a process of invention. S/M is the use of a strategic relationship as a source of pleasure.”
—Michel Foucault (19261984)
“Jesus Christ belonged to the true race of the prophets. He saw with an open eye the mystery of the soul. Drawn by its severe harmony, ravished with its beauty, he lived in it, and had his being there. Alone in all history he estimated the greatness of man.”
—Ralph Waldo Emerson (18031882)
“To make life more bearable and pleasant for everybody, choose the issues that are significant enough to fight over, and ignore or use distraction for those you can let slide that day. Picking your battles will eliminate a number of conflicts, and yet will still leave you feeling in control.”
—Lawrence Balter (20th century)