发明名称 RADIO SELECTIVE CALL SYSTEM
摘要 PURPOSE:To attain the increase in number of accommodated subscribers by calling to a called party when no message information exists thereto while arranging a special signal and an address signal in succession to a synchronizing signal. CONSTITUTION:A synchronizing signal and an address signal or a call signal adding message information to the synchronizing signal and the address signal is formed to each group call signal in a base station and sent. In this case, as to a call of tone only not attended with a message information signal, a specific signal of the same constitution as the address signal representing the arrangement of the address signal is arranged in a period distributed to the message information in succession to the part of the address signal in following to the synchronizing signal and then the address signal to call an individual receiver is arranged. The address signal is sent in this way so as to increase number of accommodated subscribers to be identified by the address signal thereby utilizing a radio wave effectively.
申请公布号 JPH0198330(A) 申请公布日期 1989.04.17
申请号 JP19870255737 申请日期 1987.10.09
申请人 NIPPON TELEGR & TELEPH CORP <NTT> 发明人 WADA MASAHIRO;SHIMANUKI YOSHITARO;NISHINO KOHEI
分类号 H04Q7/18;H04B7/26;H04Q7/12;H04Q7/16 主分类号 H04Q7/18
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