发明名称 Communications system using a satellite-based network with a plurality of spot beams providing ubiquitous coverage from two different satellites
摘要 A satellite-based communications system operating at high data rates includes a plurality of satellites each having uplink and downlink antennas for transmitting and receiving a plurality of signals utilizing a plurality of spot beams to and from a plurality of coverage areas at a predetermined range of frequencies. The system can include, or be combined with, other systems to enable increased capacity over high population areas and ubiquitous coverage over lower population areas. A portable antenna assembly can be coupled to a user's portable or mobile electronic device for coupling the electronic device directly to a satellite. A routing switch provides routing and switching on-board the satellite and routes signals according to their desired destination.
申请公布号 US7020462(B1) 申请公布日期 2006.03.28
申请号 US19980159817 申请日期 1998.09.23
申请人 THE DIRECTV GROUP, INC. 发明人 WESEL ELLEN K.
分类号 H04Q7/20 主分类号 H04Q7/20
代理机构 代理人
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