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21. 发明专利

JPS51116606A SUBSCRIVER*S ABANDONNONNTHEEWAY SUPERVISION SYSTEM 失效
公开(公告)号：JPS51116606A
公开(公告)日：1976-10-14
申请号：JP4116675
申请日：1975-04-07
申请人： NIPPON ELECTRIC CO
发明人： TEZUKA TAKAO , SATOU AKIHIKO
IPC分类号： H04M3/14 , H04Q3/60
摘要： PURPOSE:To supervise both a subscriber economically and his abandon-on-theway by providing a master station of a line concentrator having a master station and branch stations with a subscriber's circuit.

22. 发明专利

JPS60152163A INCOMING CONNECTION SYSTEM 失效
公开(公告)号：JPS60152163A
公开(公告)日：1985-08-10
申请号：JP730884
申请日：1984-01-20
申请人： NIPPON ELECTRIC CO
发明人： TEZUKA TAKAO
IPC分类号： H04M3/42
摘要： PURPOSE:To attain the duplicated number service by identifying a sub-number incoming even after a duplicated number service stop is operated, switching a call signal and transmitting a sub-number incoming display signal so as to display the incoming of sub-number. CONSTITUTION:When a calling subscriber 9 dials a telephone number of an incoming subscriber 6, a number group 4 transmits subscriber allocation position information and sub-number incoming information to a connection marker 3. thus, the connection marker 3 connects an intra-office trunk 7 and the incoming subscriber 6 by controlling a main link 5 and also transmits the sub-number incoming information to the intra-office information to the intra-office trunk 7. When the intra-office trunk 7 receives the sub-number incoming information, a call signal is switched, the transmission of a sub-number incoming display signal is prepared, and when the connection end information is received, the sub- number incoming display signal calls the incoming subscriber 6.

23. 发明专利

JPS6062772A INCOMING CALL CONNECTING SYSTEM 失效
公开(公告)号：JPS6062772A
公开(公告)日：1985-04-10
申请号：JP17178683
申请日：1983-09-16
申请人： NIPPON ELECTRIC CO
发明人： TEZUKA TAKAO
IPC分类号： H04M3/42
摘要： PURPOSE:To attain the connection with priority to an incoming call from a general subscriber even during various services by providing a storage means storing that various services are connected, an identification means and a means restoring service control. CONSTITUTION:A connection marker 5 is provided with the identification means identifying an incoming call from the service control trunk 8 controlling various services such as automatic metering and a restoring means restoring the service control trunk 8. A storage means 4 is provided corresponding to a subscriber 1. When an incoming call exists in the various service control trunk 8, the information during connection to the service control trunk 8 is stored to the storage means corresponding to a called subscriber, and at the incoming from the general subscriber 1, when the called subscriber reads that the service control trunk 8 is under connection, the service control trunk 8 is restored and also the content of the storage means corresponding to the called subscirber is erased so as to connect the general subscriber 1 to the called subscriber.

24. 发明专利

JPS51132010A INFORMATION TRANSFER SYSTEM IN WIRE COLLECTING SYSTEM 失效
公开(公告)号：JPS51132010A
公开(公告)日：1976-11-16
申请号：JP5312675
申请日：1975-05-06
申请人： NIPPON ELECTRIC CO
发明人： IIZUKA ICHIROU , TEZUKA TAKAO
IPC分类号： H04Q3/60
摘要： PURPOSE:To execute economical controlling information transfer between a key station device and a child station device in collect wire system.

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