发明名称 |
Method of receiving signals through satellites |
摘要 |
A communication/broadcasting system provides a communication service and/or a broadcasting service between a communication/broadcasting center station and a mobile station and a fixed station present in a beam spot through orbiting satellites controlled by a satellite control station in order to prevent a degraded quality and permit users to receive the provision of the services at any location in a service area through the satellite positioned at an elevation angle suitable for communications/broadcasting. The orbiting satellite is switched to another at a timing at which the elevation angle can be kept high, thereby preventing a degraded quality of communications/broadcasting.
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申请公布号 |
US2004137842(A1) |
申请公布日期 |
2004.07.15 |
申请号 |
US20030687672 |
申请日期 |
2003.10.20 |
申请人 |
IWATA TADAYOSHI;MAEDA TOSHIHIDE;ISHIDA TAKAHARU;INOUE HIDEKI |
发明人 |
IWATA TADAYOSHI;MAEDA TOSHIHIDE;ISHIDA TAKAHARU;INOUE HIDEKI |
分类号 |
B64G3/00;H04B7/185;H04B7/195;(IPC1-7):H04B7/15 |
主分类号 |
B64G3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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