A Personal Digital Key Digital Content Security System (PDK-DCSS) is used to protect computers from unauthorized use and protect the digital content stored on computers from being wrongfully accessed, copied, and/or distributed. The basic components of the PDK-DCSS are (1) a standard hard drive device,...http://www.google.com.au/patents/US20040098597?utm_source=gb-gplus-sharePatent US20040098597 - Digital content security system
