| 发明名称 |
EFFICIENT HIGH LATITUDE SERVICE AREA SATELLITE MOBILE BROADCASTING SYSTEMS |
| 摘要 |
Satellite audio broadcasting systems include orbital constellations for providing high elevation angle coverage of audio broadcast signals from the constellation's satellites to fixed and mobile receivers within service areas located at geographical latitudes well removed from the equator.
|
| 申请公布号 |
CA2255220(A1) |
申请公布日期 |
1999.11.20 |
| 申请号 |
CA19982255220 |
申请日期 |
1998.12.21 |
| 申请人 |
CD RADIO INC. |
发明人 |
NELSON, ROBERT A.;BRISKMAN, ROBERT D. |
| 分类号 |
H04B7/185;H04B7/19;H04B7/195;H04H40/90;(IPC1-7):H04B7/19 |
主分类号 |
H04B7/185 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
