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11. 发明专利

JPS61224629A FRAME SYNCHRONISM DEVICE IN TIME DIVISION LINE CONCENTRATOR 失效
公开(公告)号：JPS61224629A
公开(公告)日：1986-10-06
申请号：JP6361385
申请日：1985-03-29
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NEC CORP , FUJITSU LTD
发明人： MORI MAKOTO , KOGURE KOJI , FUJITSUKA ISAMU , MURATA KOICHI , KIYONO NAOHISA
IPC分类号： H04J3/06 , H04L7/08 , H04Q11/04
摘要： PURPOSE:To allow a controlling and supervising circuit side to synchronize concentratingly and efficiently a multi-frame from a subscriber circuit by setting a frame identification flat at each multi-frame from the subscriber circuit and allowing the controlling and supervising circuit side to identify the frame identification flag so as to apply frame synchronization. CONSTITUTION:The subscriber circuits SLC1-SLCN have respectively a multi- frame generating function and a function receiving the multi-frame via a BHW and applying frame synchronization. The frame synchronization is executed by identifying a frame identification flag added with control information SD. In generating the multi-frame by the subscriber circuits SLC1-SLCN, the frame identification flag is added to state information SCN. The state information SCN added with the said flag is sent via an FHW. The controlling and supervising circuit SDC has a function receiving the multi-frame via the FHW and applying frame synchronization and a multi-frame generating function adding a frame identification flag to the control information SD and sending the result to the BHW. The frame synchronization is executed by identifying the frame identification flag in the multi-frame via the FHW.

12. 发明专利

JP2511720B2 失效
公开(公告)号：JP2511720B2
公开(公告)日：1996-07-03
申请号：JP3774390
申请日：1990-02-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NONAKA AKIRA , YAJIMA TOSHIO , KOGURE KOJI , YAMAGUCHI TOMOHARU
IPC分类号： H04M3/32

13. 发明专利

JPS63193695A MODULE TYPE EXCHANGE 失效
公开(公告)号：JPS63193695A
公开(公告)日：1988-08-10
申请号：JP2445587
申请日：1987-02-06
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： UENO TAKAO , KOGURE KOJI , KAWAMURA NORIYUKI
IPC分类号： H04Q3/545 , H04Q11/04
摘要： PURPOSE:To obtain an exchange system that facilitates an addition/modification in terms of software and hardware by constituting one exchange module by combining an independent subscriber exchange module, distribution exchange module, and monitoring test module. CONSTITUTION:The following three independent modules are connected through a digital interface 6; the subscriber exchange module 1 provided with a subscriber's line interface 15, a channel switch 12 for time division speaking for call, a subscriber's line signal device 13, and a processor 11 to control these elements; the distribution exchange module 3 provided with a trunk line interface 34, trunk line signal devices 33, 35, and a processor to control these elements; and the supervising test module 5 provided with a tester 53, a channel switch 52, and a processor 51 to control these elements. With this division-module constitution, an exchange system whose addition and modification are easy in terms of hardware and software can be obtained.

14. 发明专利

JPS6211358A TALKIE TRANSMISSION METHOD 失效
公开(公告)号：JPS6211358A
公开(公告)日：1987-01-20
申请号：JP14927285
申请日：1985-07-09
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： FUJITSUKA ISAMU , KOGURE KOJI
IPC分类号： H04M3/50 , H04M3/08
摘要： PURPOSE:To reduce probability of impossibility of transmission of talkie due to the influences of trouble of the device by providing a selector circuit that switches output of a line concentration switch and talkie sound in the outputting section directed to a subscriber of the line concentration switch and transmitting from the circuit inserting talkie sound. CONSTITUTION:A converting circuit 2 converts analog talkie sent from a talkie sound source 1 by which an exchange reports impossibility of service to PCM code of 64kb/s and sends to a selector circuit 3. The circuit 3 normally selects down information highway from a circuit network 11 and sends out to a parallel series converting circuit 4, and on receiving instruction to send out talkie, selects digital talkie of 8k frame 8b parallel data and sends to the circuit 4. Then, the circuit 4 converts data from the circuit 3 to highway series data and sends out to a subscriber's circuit through a distributing circuit 5. The circuit 6 converts the sent data to analog data and sends to out to a telephone set 7.

15. 发明专利

JPH06141013A METHOD AND CIRCUIT FOR SWITCHING NO-HIT TRANSMISSION LINE 失效
公开(公告)号：JPH06141013A
公开(公告)日：1994-05-20
申请号：JP28577392
申请日：1992-10-23
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TAKATORI MASAHIRO , NAKANO YUKIO , ASHI MASAHIRO , SUGANO TADAYUKI , KOGURE KOJI , KATAOKA HIDEKI
IPC分类号： H04J3/00 , H04J3/06 , H04J3/07 , H04L1/22 , H04L7/00 , H04L7/027
摘要： PURPOSE:To switch a frame phase conversion circuit in current use to a spare frame phase conversion circuit without generating hit when a transmission line is composed of redundancy constitution by making the output of the frame phase conversion circuit in current use coincide with that of the spare frame phase conversion circuit compulsorily by using pulse stuffing. CONSTITUTION:The frame phase detecting part 5-1 of the frame phase conversion circuit 31 in current use detects the frame phase of a VC-4 in a reception STM-1 frame by reading by a pointer, and stores a signal 16-1 representing the frame phase of the VC-4 in a buffer 1-1. Thence, clock switching for the signal 16-1 representing the frame phase of a reception VC-4 is performed by reading out by a CLK2. Furthermore, difference between an output signal 17-2 and a device frame phase 21-1 is counted by a counter 20-1, and output 22-1 is sent to a conversion circuit 32. Similar processing is performed on a signal 16-2 representing the frame phase of the reception VC-4 at the circuit 32. Thereby, the output frame of the circuit 31 can coincide with that of the circuit 32, and the circuit in current use can be switched to the spare circuit by a selector without generating the hit.

16. 发明专利

JPS6411456A SERVICE TRUNK CONNECTION SYSTEM 失效
公开(公告)号：JPS6411456A
公开(公告)日：1989-01-17
申请号：JP16526287
申请日：1987-07-03
申请人： NEC CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： GOTO AKIRA , TAKEUCHI WATARU , KOGURE KOJI
IPC分类号： H04M3/50 , H04M11/02 , H04Q11/04
摘要： PURPOSE:To enable the transmission of various talkie signals and tone signal and to reduce the load on a controller by providing a service trunk device and a tone talkie distribution device which distributes tone talkie signals to respective stages directly. CONSTITUTION:The service trunk device 1 outputs various tone signals and talkie signals and inputs them to the tone talkie distribution device 2. The device 2 operates its internal distribution switch 2A under the command of a controller to distribute various tone signals and talkie signals to a line concentration stage 3, a distribution stage 6, and a repeating stage 9 selectively under software control so that they are inputted to up network highways 15 and 17, down network highways 16 and 18, a down repeating line highway 20 connected among the stages 3, 6 and 9. Ths software is for operating the device 2 individually. Therefore, optional tone talkie signals are distributed freely to optional stages and the load on the controller is reduced.

17. 发明专利

JPS63187857A DIGITAL EXCHANGE NETWORK 失效
公开(公告)号：JPS63187857A
公开(公告)日：1988-08-03
申请号：JP1852987
申请日：1987-01-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWAMURA NORIYUKI , KOGURE KOJI
IPC分类号： H04M3/00 , H04M3/60 , H04M7/00
摘要： PURPOSE:To obtain an economical exchange network by providing an analog trunk as an interface to a metallic relay line and a PCM terminal equipment to one digital exchange and utilizing them by plural exchanges. CONSTITUTION:When the connection from an exchange 1 to the metallic relay line 6 is desired, the exchange 1 uses an MF signal transmitter-receiver and a supervisory signal transmitter-receiver in relay line signal equipments 15, 25 to transmit/receive a required control signal with an exchange 2, the exchange 2 uses an analog trunk 27 and a PCM terminal equipment 26 to convert the transmitted/received control signal as the control signal for the metallic relay line 6 and sends the result to the metallic relay line 6. The exchange 1 is connected to the metallic relay line 6 while using the exchange 2 as the relay exchange and when a holding signal is sent from an attendant board via the metallic relay line 6, the exchange 2 uses the analog trunk 27 and the PCM terminal equipment 26 to convert the terminated holding signal into a digital control signal defined separately and relays it to the exchange 1.

18. 发明专利

JPS6374358A SPEECH PATH USUALLY TESTING METHOD 失效
公开(公告)号：JPS6374358A
公开(公告)日：1988-04-04
申请号：JP21802786
申请日：1986-09-18
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： FUJITSUKA ISAMU , KOGURE KOJI
IPC分类号： H04M3/26 , H04Q1/24
摘要： PURPOSE:To detect even the fault of multi-connection by setting a semi fixed bus to a test time slot and adding the parity of inverse logic to a prescribed logic at the incoming side of a speech path as to the test data inserted thereto and checking the parity at the outgoing side by inverse logic. CONSTITUTION:In an incoming highway 16 from a subscriber circuit, when a timing signal 1 takes place in a prescribed timing to a control input 30 from a timing generating circuit 32 by a fixed time slot insertion circuit 24, a test pattern generated by a test pattern generating circuit 28 is inserted to the test time slot specified in the highway. Then it is transformed into a parallel data by a serial-parallel transforming circuit and a parity generating circuit 34 together with the serial data of the time slot of other usual talking and the result is inputted to a line concentration switch 10. In such a case, an odd parity is added at the time slot of the usual talking data and an even parity is added at the test time slot. In the parallel high way, the call is exchanged by the switch 10, a distribution switch 12 and a relay switch 14 and an odd parity is checked by a parallel/serial transforming circuit and a parity check circuit 68.

19. 发明专利

JPS6234436A DATA TROUBLE DETECTING CIRCUIT 失效
公开(公告)号：JPS6234436A
公开(公告)日：1987-02-14
申请号：JP17344385
申请日：1985-08-06
申请人： NEC CORP , NIPPON TELEGRAPH & TELEPHONE , FUJITSU LTD
发明人： ONO CHUKICHI , KOGURE KOJI , KURODA KIYOHIKO
IPC分类号： H04L1/00
摘要： PURPOSE:To reduce the quantity of the hardware used in a data trouble detecting circuit so as to make maintenance of the circuit easier, by making the selecting designation of a selector the same as parity rule designating information. CONSTITUTION:Usually, command from a parity rule designating information line 70 is an odd parity rule and a 2-1 selector 9 selects an OR circuit 8a. If a trouble occurs on at least one side of memory circuits 41 and 42 under this condition, the output of the OR circuit 8a becomes to have a logic '1' and trouble information is outputted to the check result outputting information line 60 of the 2-1 selector 9. When the information from the information line 70 is changed to an even parity rule, the selector 9 selects an AND circuit 8b. The output of the AND circuit 8b becomes to have a logic '1' only when the trouble information is outputted to both check result outputting information lines 61 and 62 and trouble information indicating that normality of parity generating circuits 21 and 22 and parity checking circuits 51 and 52 is confirmed is outputted to the check result outputting information line 60 of the 2-1 selector 9.

20. 发明专利

JPS6223298A CHANNEL CONCENTRATOR 失效
公开(公告)号：JPS6223298A
公开(公告)日：1987-01-31
申请号：JP16336085
申请日：1985-07-23
申请人： NEC CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： GOTO AKIRA , KOGURE KOJI
IPC分类号： H04Q3/60
摘要： PURPOSE:To control channel memories with one channel control memory even when the number of channel memories is increased by providing a spatial switch accommodating plural output highways of the channel memories, selecting information of one highway at each unit time and giving outputs while line concentration to one highway. CONSTITUTION:The information selecting one of m lines of time division highways accommodated in the spatial switch 14 and read address information of the channel memories 24-26 are written on the channel control memory 15 in software order. A data written already on an address 2 read from the m sets of channel memories is inputted simultaneously to the spatial switch 14. The information '1' for selecting one of m lines of the time division multiplex highways is outputted to a control line 23 from the channel control memory 15 and inputted to a select terminal of the spatial switch 14. The information is connected to a terminal G1 in the spatial switch 14 and data J from the 1st time division multiplex highway is outputted to a time slot JEN 0.

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