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1. 发明专利

JPH0681181B2 失效
公开(公告)号：JPH0681181B2
公开(公告)日：1994-10-12
申请号：JP21942485
申请日：1985-10-02
申请人： FUJITSU LTD
发明人： TABU TAKASHI , SANO SHIGEO , KAWAMI SHIGERU
IPC分类号： H04M3/06

2. 发明专利

JPH04256264A TALKIE TRANSMISSION SYSTEM IN TELEPHONE EXCHANGE NETWORK 失效
公开(公告)号：JPH04256264A
公开(公告)日：1992-09-10
申请号：JP1672991
申请日：1991-02-08
申请人： FUJITSU LTD
发明人： KIRA MASAKI , TABU TAKASHI , OKABE KENICHI , KAWANO HISATO , SEKINE SHIGERU
IPC分类号： H04M3/08
摘要： PURPOSE:To surely and quickly inform fault information subscriber even when a line fault takes place in a higher rank line by providing a fault detection means to a subscriber controller. CONSTITUTION:A subscriber controller 4 has a function of distributing multiplexedly a subscriber line 3 from plural subscribers 1 and outputting the result to a higher rank line 6 and the inside of the controller is provided with a fault detection means 11 monitoring the line state of the higher rank line 6. When the fault detection means 11 detects a line fault in the higher rank line 6, the fault information is at first sent to a control means 13, which selects a changeover means 12 based thereon and sends a talkie data of a talking device 5 to the subscriber line 3. Thus, the subscriber 1 recognizes the presence of a fault in the higher rank line 6 while a handset is hooked off.

3. 发明专利

JPH0385853A TELEPHONE LINE TEST EQUIPMENT 失效
公开(公告)号：JPH0385853A
公开(公告)日：1991-04-11
申请号：JP22256389
申请日：1989-08-29
申请人： FUJITSU LTD
发明人： KAWANO HISATO , ISHIGURO TAMAHIKO , KIRA MASAKI , TABU TAKASHI , OKABE KENICHI
IPC分类号： G01R31/00 , H04M1/24 , H04M3/30
摘要： PURPOSE:To obtain the result of measurement with high accuracy by applying correction calculation to a measurement data of a subscriber line based on each correction data stored in a 2nd nonvolatile memory. CONSTITUTION:A correction calculation circuit 5 in the measurement mode applies correction calculation to a measurement data of a subscriber line based on a correction data corresponding to each setting value stored in a 2nd nonvolatile memory 4. That is, the correction calculation circuit 5 adds a correction data B stored for each setting in the 2nd nonvolatile memory 2 to a measured data A of a subscriber line to apply correction calculation represented by C=A+B to calculate the corrected measurement data C. Thus, the result of measurement with high accuracy is obtained.

4. 发明专利

JPH02187832A CONNECTION CONFIRMING SYSTEM USING CURRENT USE/SPARE SIGNAL 失效
公开(公告)号：JPH02187832A
公开(公告)日：1990-07-24
申请号：JP670389
申请日：1989-01-13
申请人： FUJITSU LTD
发明人： TABU TAKASHI , OKABE KENICHI , KAWANO HISATO , KIRA MASAKI
IPC分类号： G06F11/20 , G06F1/04 , H04M3/22 , H04Q3/545
摘要： PURPOSE:To surely detect the connecting state of the common part of a system in current use by an individual part even when the supply of a clock is stopped by sending signals in current use and of spare and a connection confirming signal from each common part to each individual part, and returning those signals to the common part of the system in current use by a switching means. CONSTITUTION:The common parts 1-0 and 1-1 transmit signals in current use and of spare A0 and A1 representing in which system, the system in current use or a spare system, an operation is performed to each individual part 200, and also, transmit the connection confirming signals F0 and F1 to confirm connection with each individual part 200 to each individual part 200. Each individual part 200 returns the signal F0 transmitted from the common part 1-0 of the system in current use to the common part 1-0 of the system in current use via an internal circuit 201, and also, returns the signal F1. The common parts 1-0 and 1-1 stop and supply of the clock signals C0 and C1 to the individual part 200 after confirming disconnection. The switching means 202 returns received signals A0, A1, and F0 to the common part 1-0. Therefore, the individual part can surely detect the completion of the connection at the common part of the system in current use even in a state where the supply of the clock signal is stopped.

5. 发明专利

JPH02177751A SUBSCRIBER CIRCUIT HOUSING POSITION RECOGNITION SYSTEM 失效
公开(公告)号：JPH02177751A
公开(公告)日：1990-07-10
申请号：JP33238588
申请日：1988-12-28
申请人： FUJITSU LTD
发明人： OKABE KENICHI , TABU TAKASHI , OMI RIE , ISHIGURO TAMAHIKO , KAWANO HISATO
IPC分类号： H04M3/22 , H04M3/00
摘要： PURPOSE:To easily find out the allocation in an erroneous location by using a program for recognizing subscriber circuit housing position and recognizing the housing position of a subscriber circuit while an identification information ID and a subscriber circuit housing position data in a database are compared and referenced. CONSTITUTION:When a subscriber circuit 2 is housed in a position of a rack 100, identification information ID from the subscriber circuit 2 is sent to a software processing section 61 of a subscriber circuit housing position recognition means 6. Then a subscriber circuit housing position recognition program is used to recognize the allocated position of the subscriber circuit while the identification information ID and the subscriber circuit housing position data in a database 62 are compared and referenced in terms of the software. Whether or not the identification information ID is coincident with that at the housing position of the subscriber circuit 2 on target is discriminated, and when they are coincident, the display representing the correctness of the housing position is applied and when they are dissident, the display representing the incorrectness of the housing position is applied.

6. 发明专利

JPH02100556A NETWORK TESTER 失效
公开(公告)号：JPH02100556A
公开(公告)日：1990-04-12
申请号：JP25321088
申请日：1988-10-07
申请人： FUJITSU LTD , FUJITSU KYUSHU TSUSHIN SYST KK
发明人： TABU TAKASHI , TSUHARA KATSUYOSHI , KAWASAKI NAOKI
IPC分类号： H04M3/26
摘要： PURPOSE:To realize the perfect state simulation of a terminal by executing the test of the terminal for the subscribers circuit common control circuit of the terminal through a standardized highway during a system operating period. CONSTITUTION:Control data is outputted from a control data set signal input circuit 10, and is inputted to a time switch 16 through a multiplexer 12 during the control data period of the signal of the style of a multiframe signal to be received through an up optical highway, and the control data is stored in a storage area other than a voice exchange storage area in the time switch 16. Next, it is read out successively at timing corresponding to each subscriber's circuit, and is multiplexed in the signal of the style of the multiframe signal, and is inputted to a test data indicate signal generation circuit 34 and an electrooptic conversion circuit 36. Optical response data transmitted from the terminal is converted into the response data of an electric signal in a photoelectric conversion circuit 30, and is inputted to a data to be tested indicate signal regeneration circuit 32, and its response data can be seen by eyes through an LED, etc.

7. 发明专利

JPH0213873B2 失效
公开(公告)号：JPH0213873B2
公开(公告)日：1990-04-05
申请号：JP19251582
申请日：1982-11-04
申请人： FUJITSU LTD
发明人： TABU TAKASHI , ISHIDA MORYOSHI , NAKANO YOSHIAKI , MASUDA NOBUYUKI
IPC分类号： H03H11/32 , H04M19/00

8. 发明专利

JPH0247914A DIGITAL NOISE ELIMINATION SYSTEM 失效
公开(公告)号：JPH0247914A
公开(公告)日：1990-02-16
申请号：JP19847388
申请日：1988-08-09
申请人： FUJITSU LTD
发明人： OKABE KENICHI , TABU TAKASHI , KIRA MASAKI
IPC分类号： H03K5/1252 , H03K5/01
摘要： PURPOSE:To attain the flexible consecution time of elimination object noise without losing the miniaturization and economy by selecting a storage signal this time or a preceding stored output signal in response to the result of recent comparison of digital signals at a prescribed number of times. CONSTITUTION:Recent digital input signals di coming m-times or the like are stored in plural-set (e.g., m) of 1st storage means 100, they are compared by a comparison means 200 and a selection means 400 is controlled in response to the result of comparison. Then when they are all coincident, the storage content of the means 100 is outputted, and if they are dissident, the preceding output stored in the 2nd storage means 300 is outputted. Thus, momentary noise is eliminated without adding a parity bit to the digital signal and the consecutive time of momentary noise being an object of elimination is adjusted easily and flexibly without losing the miniaturization and the economy.

9. 发明专利

JPH01186047A HOWLER SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPH01186047A
公开(公告)日：1989-07-25
申请号：JP991088
申请日：1988-01-20
申请人： FUJITSU LTD
发明人： MASUDA NOBUYUKI , TABU TAKASHI
IPC分类号： H04M3/14 , H04M19/02
摘要： PURPOSE:To eliminate the need for the provision of a howler signal generating means in a bowler transmission circuit, to make the size of a transmission small and to economize the system by providing a connection request means and an amplification means in the howler transmission circuit being a component of a digital exchange. CONSTITUTION:The howler signal transmission system consists of a digital exchange 1, a subscriber 3, a howler transmission circuit 14, a howler signal generating signal sound source 15, a changeover means 100 connecting a subscriber 3 to the transmission circuit 14, a time division network 200, a connection control section 300, a connection request means 400 provided in the circuit 14 and an amplifier means 500. The circuit 14 is connected to the subscriber 3 in a permanent call in this way by using the control section 300 via the means 100 provided to the subscriber line 2. When the circuit 14 is connected to the subscriber 3, the means 400 requests the connection to the sound source 15 to the control section 300 via the network 200 to connect the sound source 15 to the circuit 14 via the network 200. The means 500 amplifies the howler signal to be supplied and sends it to the subscriber 3 under connection via the means 100.

10. 发明专利

JPH01148017A DETECTING SYSTEM FOR ABNORMALITY OF POWER SOURCE 失效
公开(公告)号：JPH01148017A
公开(公告)日：1989-06-09
申请号：JP30793387
申请日：1987-12-04
申请人： FUJITSU LTD , FUJITSU KYUSHU TSUSHIN SYST KK
发明人： TABU TAKASHI , HIRAHARA MINORU , ASHIHARA SHUICHI
IPC分类号： H04Q1/28 , G05F1/10 , H02H7/20 , H04M3/22
摘要： PURPOSE:To facilitate maintenance, by arranging a power unit and a soft interface from which the output or the like of internal line voltage is generated, and by composing them so that the fault of the power unit may be discriminated and distinguished from the poor connection of a connector. CONSTITUTION:In a mate monitoring system, a system-zero is provided with a power unit 10 and a package-formed soft interface 20, and in the same manner, a system-one is also provided with a power unit 30 and a soft interface 40, and the systems are doubled. The power unit 10 of the system-zero is provided with a connector 100 for connecting an external power source, a fuse interruption detecting means 110, a DC/DC converter 120, an internal electric abnormal state detecting means 130, and an OR circuit 140. Besides, the soft interface 40 of the system-one is provided with a comparator 410 and a grounding signal converting means 420. As a result, NOP signal in the soft interface 40 is detected at the time or the like when the fuse of the power unit 10 is left out.

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