A system in which a personal computer sends messages into a TCP/IP network using a conventional dial-up link and downloads data from the TCP/IP network using a high-speed one-way satellite link. A preferred embodiment uses a conventional SLIP provider to connect to the TCP/IP network and uses a commercial...http://www.google.com.hk/patents/US6839770?utm_source=gb-gplus-share專利 US6839770 - Apparatus and method for access to network via satellite