An apparatus for transmitting and receiving signals over a two-way satellite communication system is disclosed. A receiving unit receives data from a user terminal. A transmitting unit is coupled to the receiving unit and transmits the data to an antenna. The data is transmitted over a return channel...http://www.google.fr/patents/US6965581?utm_source=gb-gplus-shareBrevet US6965581 - Transceiver in a two-way satellite system
