发明授权
US07406311B2 Method and apparatus for selectively operating satellites in tundra orbits
失效
用于选择性地操作苔原轨道卫星的方法和装置
- 专利标题: Method and apparatus for selectively operating satellites in tundra orbits
- 专利标题(中): 用于选择性地操作苔原轨道卫星的方法和装置
-
申请号: US11543916申请日: 2006-10-06
-
公开(公告)号: US07406311B2公开(公告)日: 2008-07-29
- 发明人: Paul D. Marko
- 申请人: Paul D. Marko
- 申请人地址: US DC Washington
- 专利权人: XM Satellite Radio Inc.
- 当前专利权人: XM Satellite Radio Inc.
- 当前专利权人地址: US DC Washington
- 代理机构: Roylance, Abrams, Berdo & Goodman, L.L.P.
- 主分类号: H04Q7/20
- IPC分类号: H04Q7/20
摘要:
A satellite system provides geosynchronous satellites in elliptical orbits in respective elliptical orbital planes separated by 120 degrees. The satellites traverse a common figure-eight ground track comprising northern and southern loops. The satellites are controllably switched to operate the satellite currently traversing the northern loop to deliver a selected signal (e.g., a selected frequency signal) to satellite receivers.
公开/授权文献
信息查询