Software is licensed for use on a particular computing device, such as a gaming console or a multimedia console. An unlocking code is provided from a distribution service to the computing device (either directly or via a user), which in turn, unlocks the appropriate software or portion of software for...http://www.google.co.uk/patents/US7849329?utm_source=gb-gplus-sharePatent US7849329 - Licensing the use of a particular feature of software