An electronic disc jockey service in which the services of a disc jockey are effectively transformed into an Internet-based (or other network-based) service that is accessible from anywhere the Internet is accessible. Disc jockey services may in theory be provided to anybody, anytime, anywhere, as long...http://www.google.com.hk/patents/US7293060?utm_source=gb-gplus-share專利 US7293060 - Electronic disc jockey service