In a time division multiple access (TDMA) system, for "multi-path" data communication via satellite repeater, the form of transmitted data is varied adaptively to maintain error-free transmission under varying noise conditions. Adjustments are made on a path selective and channel selective basis to protect...http://www.google.com/patents/US4357700?utm_source=gb-gplus-sharePatent US4357700 - Adaptive error encoding in multiple access systems
