Methods and systems of providing real time on-line casino games are disclosed. A remote player connects to an on-line server that hosts a game center. A flexible security program allows a web site to select one or more user information fields as required verification fields for entering the web site....http://www.google.com.hk/patents/US20020094869?utm_source=gb-gplus-share專利 US20020094869 - Methods and systems of providing real time on-line casino games
