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.
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 代理人
主权项
地址