Copyrighted electronic media are packaged in a secure electronic format, and registered on associated registration server, which serves to provide on-line licensing and copyright management for that media. Users are connected to the server, e.g., through a computer network or the Internet, to enable...http://www.google.ca/patents/US7647642?utm_source=gb-gplus-sharePatent US7647642 - System and method for managing copyrighted electronic media
