发明名称 |
Filters for combined radiotelephone/GPS terminals |
摘要 |
A satellite radiotelephone system includes a space-based component, a plurality of ancillary terrestrial components, and a plurality of radiotelephones. The space-based component is configured to provide wireless radiotelephone communications using satellite radiotelephone frequencies. The plurality of ancillary terrestrial components include a plurality of ancillary terrestrial component antennas configured to provide wireless radiotelephone communications using at least one of the satellite radiotelephone frequencies in a radiation pattern that increases radiation below the horizon compared to above the horizon. The plurality of radiotelephones are configured to communicate with the space-based component and with the plurality of ancillary terrestrial components. Each radiotelephone also includes a GPS signal processor and a GPS mode filter that is configured to suppress energy at (1575.42-Delta) MHz, where 0<Delta<=16.42 MHz. Related radiotelephones and methods are also discussed.
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申请公布号 |
US6785543(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20030353548 |
申请日期 |
2003.01.29 |
申请人 |
MOBILE SATELLITE VENTURES, LP |
发明人 |
KARABINIS PETER D. |
分类号 |
A61K9/00;A61K9/70;H04B1/38;H04B7/185;H04B7/216;H04Q7/36;(IPC1-7):H04Q7/20 |
主分类号 |
A61K9/00 |
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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