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    • 3. 发明专利
    • MULTIPLE ADDRESS SPEECH SYSTEM
    • JPS63281529A
    • 1988-11-18
    • JP11583287
    • 1987-05-14
    • NIPPON TELEGRAPH & TELEPHONE
    • MONMA KOJI
    • H04B7/26
    • PURPOSE:To attain the multiple address communication of plural radio telephone sets to disperse at plural zones by grouping an identifying signal, executing the broadcasting call, and controlling the electric wave transmission of the ascending line of a radio telephone set. CONSTITUTION:A radio telephone set 1 of a group 1 transmits a broadcasting call mode requesting signal including the identification code of a group to a radio base station 10. The base station 10 relays the received signal to a radio line control device 12. When the devide 12 receives the signal, it reads a radio telephone set to belong to a same group G1 and connects radio base stations 10 and 11 which the radio telephone set can connect. When the base station 10 receives the signal of setting the multiple address communication mode including the identification code, telephone sets 1-5 are made into a monitor condition. Then, the telephone set 1 can execute the transmission, and for other telephone sets 2-5, the transmission is prohibited, the receiving only can be executed and the transmission of the telephone set 1 can be monitored. Hereinafter, successively, the telephones 2-5 can execute the transmission and the transmission of other telephone sets is prohibited. Concerning the base station 11, the same action is executed.
    • 5. 发明专利
    • MOBILE RADIO COMMUNICATION SYSTEM
    • JPS6264192A
    • 1987-03-23
    • JP20291985
    • 1985-09-13
    • NIPPON TELEGRAPH & TELEPHONE
    • MONMA KOJIMUROTA KAZUAKIKAWASAKI RYOJI
    • H04B7/26H04M3/42H04Q7/20H04Q7/22H04Q7/24H04Q7/26H04Q7/28H04Q7/30
    • PURPOSE:To secure a communication even if a mobile radio communication equipment moves into the service area of other radio station by connecting a line controller to a position of the transmission line immediately after trunk exchange or a private branck exchange and collectively controlling the positional information of the mobile radio communication equipment. CONSTITUTION:The line controller 4 is connected via the subscriber's transmission line from the trunk exchange LS or the private branch exchange to the user or via a private transmission line 3. The controller 4 comprises a line exchange and a control circuit etc. In the subscriber's storage file in said control circuit, the identification number of the transmission line 3 and the number of the radio station 6 to be connected or the identification number of an extension to be connected to the station are stored. Accordingly, when a call arrives, the station 6 on the destination of the move can be retireved by reading said numbers. That means that when the mobile radio communication equipment moves into the service area of other station 6, the positional registration is executed via a nearby station 6 to update the content of the user's storage file. And thus the communication is made able to be achieved.
    • 9. 发明专利
    • POSITION REGISTRATION SYSTEM
    • JPH03265299A
    • 1991-11-26
    • JP6539190
    • 1990-03-14
    • NEC CORPNIPPON TELEGRAPH & TELEPHONE
    • NAGASHIMA NORIAKIMONMA KOJI
    • H04W60/00H04W60/04
    • PURPOSE:To reduce a state of disable call connection and make position registration immediate to the movement of a radio telephone set by detecting the moving quantity of the radio telephone set and evaluating it and applying position registration automatically even when the radio telephone set is moved to the outside of a radio zone for the registered position. CONSTITUTION:When a radio telephone set 13 moves, a control section 130 of the telephone set 13 senses a count of a moving traffic unit meter 137 at all times and monitors the moving quantity in the accumulation mode till the count exceeds a prescribed value. When the count exceeds the prescribed value, a moving quantity monitor timer is started and the count of the call unit meter 137 is read for each prescribed time and when the end of movement is discriminated, the radio equipment 13 starts position registration automatically. Then a manual position registration request signal is generated by a control sequence of a radio connection device 12 of a radio line connection file 138a and various control signals and it is sent via a radio transmitter-receiver 131. Thus, the position registration is made immediate to the movement and the state of disabling call connection does not last long.