发明名称 ARTIFICIAL SATELLITE SYSTEM
摘要 PURPOSE:To obtain the data only near the local station as well as to realize the economization for the ground station, by fixing the antenna of the ground station in the zenith direction to receive the data from the artificial sattellite.
申请公布号 JPS53112607(A) 申请公布日期 1978.10.02
申请号 JP19770027032 申请日期 1977.03.14
申请人 HITACHI LTD 发明人 HISHIDA YOSHIHIKO
分类号 H04B7/15;H04B7/195 主分类号 H04B7/15
代理机构 代理人
主权项
地址