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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0847920 (1992-03-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 125 인용 특허 : 0 |
Aircraft communications are established on a cellular system by having the transmission to aircraft directed above ground level so as not to interfere with ground cellular systems and having the transmissions from the aircraft at extreme low power levels so as not to interfere with transmissions fro
A structural cellular telephone system using a designated plurality of radio channels, some of the channels being control channels and some of the channels being voice channels, said system having a) a plurality of cells, each cell having a base station including a tower located proximate a center t
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