The present invention includes a low-earth satellite-based paging broadcast system (100) and method (200, 300) that maximizes spectral efficiency and minimizes power expenditure for the broadcast of paging messages by broadcasting the messages to terminator- or originator-selectable portions of the total...http://www.google.com/patents/US5396643?utm_source=gb-gplus-sharePatent US5396643 - Geographic-area selective low-earth satellite-based paging broadcast system and method