A gaming apparatus, comprising: a display unit capable of generating video images; a value input device; a player tracking card reader; a controller operatively coupled to said display unit, said value input device, and said player tracking card reader, said controller comprising a processor and a memory...http://www.google.de/patents/US20030148808?utm_source=gb-gplus-sharePatent US20030148808 - Method and apparatus for providing a personal wide area progressive for gaming apparatus
