In the method of multiple-station communication for low-orbit satellite systems, according to which service information modulated pseudirandom synchronization signals are emitted from a satellite transponder over the entire band of the transmission spectrum, information packets are received. from user...http://www.google.de/patents/US5898902?utm_source=gb-gplus-sharePatent US5898902 - Method and apparatus for multiple-station communication for low-orbit satelllite systems
