Patent ID: 7085250
Filing Date: 2006-08-01
Classification: H04B,H04H

Abstract:
1. An information-transmission system, which uses non-geosynchronous artificial satellites, including a server-system and its client apparatuses, for performing communications or broadcast, said server-system comprising: a satellite-control unit which controls changeover of a non-geosynchronous artificial satellite being used to another satellite to be next used; and a sent information-processing unit which determines whether or not satellite-changeover occurs during sending of an information packet to be sent based on the information on the orbit of the satellite, and if it is determined that the satellite-changeover occurs during sending of said information packet to be sent, then postpones sending of said information packet to be sent, and starts sending of said information packet to be sent after completion of said satellite-changeover, wherein said information packet to be sent whose sending has been postponed is sent after said completion of said satellite-changeover, along with the last m items of information packets, which were sent just before said satellite-changeover, where m indicates an integer not less than 0.