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1. 发明专利

JPS5685965A TIME SHARING CHANNEL TEST METHOD 失效
公开(公告)号：JPS5685965A
公开(公告)日：1981-07-13
申请号：JP16253779
申请日：1979-12-14
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , HITACHI LTD
发明人： MURAKAMI KOUZOU , SANBE TAKESHI , OOWADA SHIYUUZOU , OGUCHI SEISHIROU , YOSHIE TATSUO
IPC分类号： H04M3/26 , H04M3/24 , H04Q11/04
摘要： PURPOSE:To eliminate the redundancy of the unit interface and reduce the hardware amount, by containing only one test highway, in the time division call unit of the digital switchboard. CONSTITUTION:The call highways 1, 2 which have been connected to the channel to be tested are made to change their connections to the spare channel 4 by use of m1 pieces among m1+m2 pieces of control signal lines 10. After that, in the channel to be tested, one of (n) pieces of switching circuits 7 is selected by the information of the residual m2 pieces of control signal lines 10. The selective circuit 8 is also operated in the same way. Since both the input side and the output side are controlled by the same decoder, the same input/output highway is selected as a test highway. In order to test all the contents of the call unit 3, it is executed by changing in order the code of m-1 bit by the maintenance test unit, and changing the test highway.

2. 发明专利

JPS5840959A HIGHWAY DRAW-IN SYSTEM FOR TEST OF TIME SHARED CHANNEL 失效
公开(公告)号：JPS5840959A
公开(公告)日：1983-03-10
申请号：JP13852881
申请日：1981-09-04
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： YOSHIE TATSUO , TAWARA KANJI , NISHIYAMA SHIGERU , MATSUMOTO TAKASHI , MURAKAMI KOUZOU
IPC分类号： H04M3/26 , H04M3/24
摘要： PURPOSE:To ensure a connection among the drawn-in highways for test without giving any effect to a time slot, by inserting a test code bit row into an optional bit or an optional time slot on a highway. CONSTITUTION:A time shared channel device stores plural time shared highways 111-11N, and a time shared channel tester 20 has a function to selectively draw in one or plural pieces of the highways 111-11N and to give a test to the time shared channel. The tester 20 feeds an insertion indication bit row in addition to a test code bit row to the time shared channel device. Then the test code bit row is inserted into the bit position designated by the corresponding insertion indication bit row. The above-mentioned procedure is available to the incoming highway side and the same procedure is also available to the outgoing side.

3. 发明专利

JPS58150356A CENTRALIZED MAINTENANCE SYSTEM 失效
公开(公告)号：JPS58150356A
公开(公告)日：1983-09-07
申请号：JP3228282
申请日：1982-03-03
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： NAKAMURA YUKIO , YOKOTA SHIROU , AOKI TOSHIROU , YOSHIE TATSUO , TAKAHASHI MICHIO
IPC分类号： H04M3/22 , H04M3/24 , H04M3/30
摘要： PURPOSE:To improve the economical performance and the flexibility for addition and change of new test function, by centralizing and installing a channel test device and a channel test controller at a centralized maintenance station. CONSTITUTION:The information needed to set a test channel selected by a time division channel 61 of a station 60 to be centralized and among the information fed to a maintainer interface device 51 by a maintainer and needed for test is transferred to a call process controller 62. At the same time, the information needed to set a channel test device 52 at a test state and the information needed to connect a designated station, i.e., a station 60 to the device 52 among stations 60... after the actuation of a switch 53 are transmitted to each corresponding device from a channel test controller 54. The device 52 is connected to the channel 61 via the switch 53 and a digital transmission line D and forms a selected test channel to perform various types of tests. The controller 54 monitors the test state of the device 52 and transmits the test state to the controller 62 after the test is over to open the test channel. At the same time, the results of tests are collected and displayed by means of the device 51.

4. 发明专利

JPS56157517A DETECTING SYSTEM FOR INPUT CLOCK FAULT 失效
公开(公告)号：JPS56157517A
公开(公告)日：1981-12-04
申请号：JP6055780
申请日：1980-05-09
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： YOSHIE TATSUO , SANBE TAKESHI , MARUYAMA YUKIHIRO , ONO CHIYUUKICHI , SASAKI YUUZOU
IPC分类号： G06F1/04 , G06F11/00 , H04Q3/545
摘要： PURPOSE:To protect a device from faults, by providing a counter, which counts high-speed clocks and is initialized when a low-speed clock sppears, and a counter which is initialized when count contents coincide with the frequency ratio of the high-speed clock to the low-speed clock. CONSTITUTION:When the input clock stops, a counter 512 starts counting; and if this state continues for approximately >=3 frames, the count value of the counter reaches a prescribed value, and as a result, the output of the decoder becomes high- level to set an FF82. This setting of the FF82 is regarded as the fixed fault of input clock break to request the route switching to the clock route switching control circuit. A counter 91 monitors the frequency ratio of the reference clock to the frame clock by the cooperative action of a counter 75 and a decoder 76. If this frequency ratio is erroneous three times continuously, the FF82 is set to issue the clock route switching request. As a result, the device is protected from not only simple clock break but also intermittent faults generated momently.

5. 发明专利

JPS56157195A JUNCTOR STAND-BY SWITCHING SYSTEM 失效
公开(公告)号：JPS56157195A
公开(公告)日：1981-12-04
申请号：JP6055580
申请日：1980-05-09
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： YOSHIE TATSUO , TAWARA KANJI , SAKIDA YASUHIKO , MINATO ATSUSHI , MURAKAMI KOUZOU
IPC分类号： H04Q3/52 , H04Q3/68 , H04Q11/04
摘要： PURPOSE:To realize a stand-by switching in every group by providing a stand-by switch circuit in every group for the junctor switches divided into several groups, in a time-division channel. CONSTITUTION:In the conventional technique, a junctor stand-by switch circuit is provided in every channel module. In this invention, however, the junctor stand-by switch circuit C1 and C2 which are capable of a stand-by switching are provided in every junctor group that is identical with a gate matrix divided in a small scale.

6. 发明专利

JPS56124188A MEMORY SWITCH CIRCUIT 失效
公开(公告)号：JPS56124188A
公开(公告)日：1981-09-29
申请号：JP2695180
申请日：1980-03-04
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , HITACHI LTD , FUJITSU LTD
发明人： ONO CHIYUUKICHI , HIRAI ATSUSHI , KAMEDA HARUTOSHI , YOSHIE TATSUO , SASAKI YUUZOU
IPC分类号： G11C11/413 , G06F12/02 , G06F12/06 , G11C7/00 , H04Q11/04
摘要： PURPOSE:To constitute the same circuit independently of operation modes and reduce the design man-hour for circuits, patterns, production, and so on to facilitate maintenance and management, by providing the read/write control line of the memory switch in the external. CONSTITUTION:Selector 22 which selects address designation of memory switch 12 is controlled through exclusive OR circuit 70 by the address designation selecting signal generating circuit consisting of two-bit counter 43 and the read/write control signal from the external. When the R/W control signal terminal is connected to logical ''0'' in the external, the memory address corresponds to address 1, and the random control from switch control memory data FF68 is performed at the write time, and the sequential control from internal counter 42 is performed at the read time. Similarly, when the R/W control signal terminal is connected to logical ''1'' in the external, the memory address corresponds to address 2, and the sequential control from counter 42 is performed at the write time, and the random control from FF68 is performed at the read time.

7. 发明专利

JPS6072396A INTRA-OFFICE RETURNING SYSTEM 失效
公开(公告)号：JPS6072396A
公开(公告)日：1985-04-24
申请号：JP17827783
申请日：1983-09-28
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： YOSHIE TATSUO , KOGURE KOUJI , NOZAKI HIROAKI , TAKEUCHI WATARU , MURAKAMI KOUZOU
IPC分类号： H04Q3/60
摘要： PURPOSE:To enable to ensure service of intra-office call connection at the time of trouble of transit trunk, high rank station etc. by providing a control device, an intra-office junctor etc. in the line concentrating switch of a remote control exchange. CONSTITUTION:Subscriber's circuits 2A, 2B are contained in the line concentrator 3a of the remote control exchange 3, and a high rank exchange station 5 is connected to the line concentrator 3 through a transit trunk 4. A control device 3b in which a microprocessor is incorporated is connected to the line concentrator 3a, and abnormality in communication is detected by the device 3b. An intra- office junctor 3c and an announce machine 3d are connected to the device 3a, and when the device 3b detected abnormality, the junctor 3c is connected to the line concentrator 3a instead of the transit trunk 4. Thus, intra-office call connection is secured by the junctor 3c and announce machine 3d at the time of trouble of the transit trunk 4, high rank exchange station etc., and increase serviceability and reliability of the return system.

8. 发明专利

JPS59131253A Test system for operation collation of duplex time division channel 失效
标题翻译：双重时间段通道操作测试系统
公开(公告)号：JPS59131253A
公开(公告)日：1984-07-28
申请号：JP561383
申请日：1983-01-17
申请人： Fujitsu Ltd , Hitachi Ltd , Nec Corp , Nippon Telegr & Teleph Corp , Oki Electric Ind Co Ltd
发明人： SASAKI YUUZOU , SANBE TAKESHI , MUKAI KAZUHIKO , SEO TOMIHIDE , YOSHIE TATSUO
IPC分类号： H04M3/22 , H04M3/24 , H04Q3/52 , H04Q3/545 , H04Q11/04
CPC分类号： H04M3/244
摘要： PURPOSE:To prevent the deterioration of processing capacity by deciding no fault as long as both time division channels are normal and even though some difference is generated between both channels when a control instruction is received. CONSTITUTION:A control instruction is transmitted from a control instruction transmitting circuit 8 at a time point TO and then sent to a control instruction receiving circuit 6 at a time point T1 via a transfer line 9. The control instruction is also sent to a control instruction receiving circuit 7 at a time point T2 via a transfer line 10. Under such conditions, the circuit 6 receives the control instruction at a time point Tb and actuates both an O-system channel 2 and a counter circuit 15. At the same time, the circuit 7 receives the instruction at a time point Tc and actuates both a 1-system channel 3 and a counter circuit 16. Both circuit 15 and 16 set the output to a collating circuit 5 at L level until time points T3 and T4 respectively after lapse of a prescribed time T. Thus no fault is detecting operation detected until the time point T4 when the outputs of both circuits 15 and 16 are set at H levels.
摘要翻译：目的：为了防止处理能力的恶化，只要两个时分通道正常，并且即使在接收到控制指令时两个通道之间产生一些差异，也可以通过确定无故障。构成：在时间点TO从控制指令发送电路8发送控制指令，然后经由传输线路9在时间点T1发送到控制指令接收电路6.控制指令也发送到控制指令在这样的条件下，电路6在时间点Tb接收控制指令，并且驱动O系统通道2和计数器电路15.同时，电路7在时间点Tc接收指令，并且驱动1系统通道3和计数器电路16.电路15和16都将输出设置为处于L电平的对照电路5，直到时间点T3和T4分别在因此，当两个电路15和16的输出被设置为H电平时，直到检测到直到时间点T4为止的检测操作都没有故障。

9. 发明专利

JPH02274038A NETWORK SERVICE OFFERING METHOD 失效
公开(公告)号：JPH02274038A
公开(公告)日：1990-11-08
申请号：JP9511689
申请日：1989-04-17
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： YOSHIE TATSUO , TAKEMURA TETSUO , FUKUSHIMA YUTAKA , SATO FUMITO
IPC分类号： G06F9/46 , H04L29/06 , H04Q3/00
摘要： PURPOSE:To flexibly cope with the addition and the change of a module by sharing an information managing means without providing a mans by which a transmission side module separately and independently manages information of the other module. CONSTITUTION:When the necessity for offering the service is generated by an information offer from other modules 101, 102 and a control from other modules 101, 102, the transmission side module 100 sends out a service offer request, for instance, a request packet by a broadcast format other modules 101 (102) without specifying the physical address of other modules 101 (102). Consequently, each module 101 (102) receives the request packet, but when its request contents are those of its own module, each module 101 (102) returns a response, executes an information offer to the transmission origin module 100, and executes the control of the transmission origin module 100. By executing a response processing to the request packet in such a manner a network service can be offered, while executing the communication between respective modules. Accordingly, it is possible to flexibly cope with the addition and the change of the other module.

10. 发明专利

JPH03286647A NETWORK MANAGEMENT INFORMATION TRANSFER SYSTEM AND COMMUNICATION SYSTEM 失效
公开(公告)号：JPH03286647A
公开(公告)日：1991-12-17
申请号：JP8773290
申请日：1990-04-02
申请人： HITACHI LTD
发明人： YOSHIE TATSUO , FUKUSHIMA YUTAKA
IPC分类号： H04M3/00 , H04L12/40
摘要： PURPOSE:To quickly obtain required network management information with a simple processing by connecting plural operation devices and plural communication equipments with a channel of a bus form and allowing the communication equipments to send network management information in broadcast form. CONSTITUTION:Sent network management information is received by operation devices 101-10n via a channel 1 and an identification section 121 discriminates whether or not the information is the network management information from an object communication equipment being an object of maintenance, operation and management and fetches the information in a network management information reception section 141 when the information comes from the object communication equipment. Moreover, in the operation device 10n, an identification section 13n discriminates whether or not the information is network management information relating to an object communication equipment 20m and fetches it into a network management information reception section 14n when the information is the network management information relating to the object communication equipment. Moreover, the network management information sent from the communication equipment 20m is similarly received to the operation device 101 based on the identification section 131 and to the operation device 10n by the identification section 12n.

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