发明名称 |
A GROUND-TO-AIR TELEPHONE CALLING SYSTEM AND RELATED METHOD |
摘要 |
A ground-to-air telephone calling system is provided including a computer (22) for receiving an airborne telephone number and a call-back number from a calling party (20) and forming the telephone numbers into a data signal comporting with existing protocol filed in the FCC, an uplink unit (24) for uplinking the data signal to a satellite (26) and a plurality of downlink stations (28) for receiving the data signal from the satellite; a plurality of ground stations (30) corresponding to each of the downlink units for receiving the data signals and passing a call signal identifying the airborne telephone and particular ground station to a corresponding transmit/receive unit (32) for subsequent transmission to the aircraft; a call being initiated from the ground station to the calling party over the public switched telephone network if the aircraft responds to the call signal. |
申请公布号 |
WO8910626(A1) |
申请公布日期 |
1989.11.02 |
申请号 |
WO1989US01540 |
申请日期 |
1989.04.13 |
申请人 |
MOBILE TELECOMMUNICATION TECHNOLOGIES |
发明人 |
BHAGAT, JAI, P.;HAYS, WILLIAM, D.;OSWALT, ERNEST, A. |
分类号 |
H04B7/185;(IPC1-7):H01J9/38;H04M11/00 |
主分类号 |
H04B7/185 |
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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