A system for handling data and transactions involving data through the use of a virtual transaction zone, which virtual transaction zone removes the dependency of such transaction on the delivery medium of the product. The invention may reside and operate on a variety of electronic devices such as televisions,...http://www.google.de/patents/US20050144641?utm_source=gb-gplus-sharePatent US20050144641 - System for data management and on-demand rental and purchase of digital data products
