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1. 发明专利

JPS5693450A DATA TRANSFER SYSTEM 失效
公开(公告)号：JPS5693450A
公开(公告)日：1981-07-29
申请号：JP17077679
申请日：1979-12-27
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： USHIWATARI ATSUSHI , HIROKAWA YUUJI , KOUDA YOSHIO , HOSHI TOORU , MOTOTANI JIYOU
IPC分类号： H04L1/00 , H04L5/20
摘要： PURPOSE:To decide the error of data by the check bit transferred by another line even if one line becomes faulty, by using two trunk lines between exchange and by transferring fault data by one line and by transferring the check bit by another line. CONSTITUTION:When a fault occurs in the exchange, the fault data transfer request is transmitted to fault data transfer device 20. Fault transfer device 20 starts fault data receiving device 21 by this request, and transmits fault data by trunk line 22 when the start completion signal is received. Simultaneously, the inverted check bit of the pulse train of fault data is transmitted by trunk line 23. Fault data receiving device 21 collates fault data and the check bit for every one pulse, and performs the fault data receiving normalcy processing if they agree with each other. At this time, receiving defect is decided by this collation even if the fault occurs in one line.

2. 发明专利

JPS5552690A MALFUNCTION PREVENTING CIRCUIT FOR MULTIIFREQUENCY SIGNAL RECEIVER 失效
公开(公告)号：JPS5552690A
公开(公告)日：1980-04-17
申请号：JP12596378
申请日：1978-10-12
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , HITACHI LTD , FUJITSU LTD
发明人： KOUDA YOSHIO , SATOU JIYUN , KIKUTA TAKASHI , ENDOU TERUHIKO , TACHIKA SHINJI
IPC分类号： H04Q1/45 , H04Q1/453
摘要： PURPOSE:To prevent the malfunction caused by the inter-station DC signals and occupying the greater part of the MF code error, by addition of one unit of the rectifier and the simple alteration of the wiring. CONSTITUTION:When the multi-frequency signal receiver is connected to the network at the incoming station, the OFF signal is connected to the oscillation station. And with detection of the OFF signal at the oscillation station, the KP signal is transmitted to the incoming station. In case the noise exists in the OFF signal and the KP signal is received mistakenly while the noise continues, the action current of reception relay 2 and K of the reception time of the KP signal passes through the holding circuit of other reception relay which is operated mistakenly from relay 2 and the holding circuit of K to make impossible the recovery of the relay having malfunction if the multi-frequency receiver cannot be recovered until the KP signal with operation of at least one unit among reception relays 0, 1, 4 and 7 by the OFF signal noise and with no existence of rectifier 17. The detouring of the action current like the above can be prevented by installing rectifier 17.

3. 发明专利

JPS51118313A SUBSCRIBER*S INFORMATION EXTRACT SYSTEM 失效
公开(公告)号：JPS51118313A
公开(公告)日：1976-10-18
申请号：JP4404375
申请日：1975-04-10
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , HITACHI LTD , FUJITSU LTD
发明人： KOUDA YOSHIO , SUZUKI SHINICHI , USHIWATARI ATSUSHI , SATOU ISAO , TSUKADA NORIO
IPC分类号： H04Q3/76 , H04Q3/47
摘要： PURPOSE:To exactly detect subscriber's address information treating with requests for services such as absent guide without ring coil current being affected.

4. 发明专利

JPS60136A POWER SUPPLY SYSTEM OF PLURAL INFORMATION INPUT OR OUTPUT DEVICES CONNECTED TO SYSTEM BUS 失效
公开(公告)号：JPS60136A
公开(公告)日：1985-01-05
申请号：JP10680583
申请日：1983-06-16
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , HIMENO RIYOUICHI
IPC分类号： H04L12/10 , H04L11/00 , G06F13/38
摘要： PURPOSE:To attain an effective power supply system by connecting an interface circuit and an information input or output device via an optical coupling circuit, and supplying the power to the interface circuit and the interface side of the optical coupling circuit via a power supply bus. CONSTITUTION:An information input or output device is connected to interfaces 4-1-4-n connected to a system bus 1 through an end of each interface. While optical coupling device 5-1-5-n are connected to those interfaces through each end of the other side for photoelectric conversion. Furthermore, the information input or output device is connected to the other end of each of devices 5-1-5-n respectively. Then, the driving power is supplied to these interfaces and the coupling devices from a shared power supply device 7 via a power supply bus 2 which is parallel to the bus 1.

5. 发明专利

JPS59231955A SIGNAL TRANSMISSION CIRCUIT 失效
公开(公告)号：JPS59231955A
公开(公告)日：1984-12-26
申请号：JP10699883
申请日：1983-06-15
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , YAZAWA KATSUHIKO , NISHIKADO IWAMASA , HIMENO RIYOUICHI
IPC分类号： H04L13/08 , H04L12/00
摘要： PURPOSE:To realize asynchronously the data transmission/reception between devices by utilizing the characteristic of an FIFO not requiring a read/write address and transmitting a signal in the unit of plural words between the devices not using nay RAM, to simplify the constitution of a signal transmission circuit. CONSTITUTION:The FIFO (F) inputting a data input and a shift signal SI is provided between a device A at the data transmission side and a device B at data reception side, a data output is outputted to the device B from the FIFO and also a shift-out signal SO is added to the FIFO from the device B. Further, an up-down counter C inputting an up-signal UP from the device A and a down-signal DN from the device B is provided between the devices A, B. Moreover, the counter C is incremented when a signal for one packet's share is inputted to the FIFO, and every time the signal of one packet is outputted, the output is displayed backward on the devices A, B and the signal in the unit of plural words is transmitted between the devices A, B with simple constitution.

6. 发明专利

JPS5481034A CHECK CIRCUIT 失效
公开(公告)号：JPS5481034A
公开(公告)日：1979-06-28
申请号：JP13236177
申请日：1977-11-02
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , ONO TAKAO
IPC分类号： H04L1/00 , G06F11/00 , G06F12/16 , G11C19/00 , G11C29/00 , H03M9/00 , H04L25/02
摘要： PURPOSE:To enable to check the failure of the shift registers of the information transmission and reception section economically, by adding the shift registers mounted on two stages and two sets to the information transmission and reception section. CONSTITUTION:The parallel serial conversion shift register A in the information transmission section, delivery line L, and the serial parallel shift register B are provided, and the output of bf1, bf2, bb1 bb2 is fed to the check circuit CHK, including the information delivery shift registers a1 to an of n-stages, information reception shift registers of n-stages b1 to bn, two stages of shift registers af, af2, bf1, bf2 provided at the front edge of the shift registers for checking, two stages of checking shift registers ab1, ab2, bb1, bb2 provided at the front edge of shift registers. The information input to the shift register added to the shift register at the information transmission section is always taken as the logic level 0,1 or 1,0 and the inspection of the information output inputted to the shift registers added to the information reception section performs failure check of the shift registers in the information transmission and reception section.

7. 发明专利

JPS59231961A CALL PROCESSING TEST SYSTEM OF EXCHANGE STAND-BY SYSTEM 失效
公开(公告)号：JPS59231961A
公开(公告)日：1984-12-26
申请号：JP10699783
申请日：1983-06-15
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KAWATANI IKUO , KOUDA YOSHIO , HIMENO RIYOUICHI , SAITOU KAZUO
IPC分类号： H04M3/22 , H04M3/12 , H04M3/26
摘要： PURPOSE:To prevent generation of call disable state by providing a selecting circuit in a line correspondence section so as to connect always a spare control section and a spare switch section to a specific line thereby allowing call processing at the spare system without giving any effect on the active system. CONSTITUTION:A control section of duplicated constitution in an exchange system is provided with an active system control section selecting circuit 12 and a spare system control section selecting circuit 13. An active system display signal from a system control section is inverted by the inverting circuit 15 of this system and led to the circuit 13 so as to connect a telephone set 16 for test to a spare system control section and a spare system switch section via a subscriber circuit 14 through the circuit 13. Further, the selecting circuit 12 is connected to a general subscriber telephone set 9 via the subscriber circuit 14 as an active system and spare system switch section. Moreover, a trunk line correspondence section is provided with a trunk for test (specific line) so as to attain similar constitution by replacing the telephone set into the trunk for test. Further, the call processing is attained by the spare system without giving any effect on the active system.

8. 发明专利

JPS5481008A TEST SYSTEM FOR REMOTE CONTROL UNIT 失效
公开(公告)号：JPS5481008A
公开(公告)日：1979-06-28
申请号：JP13236277
申请日：1977-11-02
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , ONO TAKAO
IPC分类号： H04M3/26 , B05D7/14 , H04B3/46 , H04J3/14 , H04M7/14 , H04Q1/26 , H04Q3/54
摘要： PURPOSE:To economically perform the test for judgement of the propriety of each terminal unit and each remote control unit, by providing the sectioning means between the slave station romote control unit and terminal unit of remote station. CONSTITUTION:The information from the central control unit CC is converted into the signal easily delivered to remote location via the delivery line with the master station remote control unit RMC, and the information from the remote station is converted to the interface with RMC and delivered to CC. The remote control unit TST is connected to the T terminal of RMC. RRC delivers the information fed from RMC through the delivery line to the terminal unit S suitably and it is the slave station remote control unit performing signal conversion to deliver the signal from S to the delivery line. TSP, which is sectioning means, is provided between RRC and S, RRC and S are disconnected by inserting the plug P, and the information from RRC to S passes through RRC-b lead-TSP-p-lead a-RRC path and the information from RRC to lead a is delivered to the path P-TSP-lead b-RRC.

9. 发明专利

JPS53148204A ERROR CORRECTING CIRCUIT 失效
公开(公告)号：JPS53148204A
公开(公告)日：1978-12-23
申请号：JP6225077
申请日：1977-05-30
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , ONO TAKAO
IPC分类号： H04L1/00
摘要： PURPOSE:To attain the economical and highly reliable error correction of information transmission, by making use of the redundant constitution and analog method for transmission information in the multipositon sampling system.

10. 发明专利

JPS5656087A TRUNK CIRCUIT 失效
公开(公告)号：JPS5656087A
公开(公告)日：1981-05-16
申请号：JP13144879
申请日：1979-10-12
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE
发明人： KOUDA YOSHIO , MATSUO YUUJI , MURATA MASAHARU , DOUMAE MASAO
IPC分类号： H04M3/40 , H04Q3/42
摘要： PURPOSE:To make it possible to prevent an abnormal sound from being sent out and a call voice from getting lower by providing an audio amplifier whose gain is adjusted automatically according to a mean voice level during a telephone call and a by-passing circuit for the audio amplifier. CONSTITUTION:When control part CONT detects a transition in a busy state, relay LP of trunk circuit TRK is put into operation to extend call lines 40 and 41 to audio amplifier AMP and hydrid transformers 32 and 33 in AMP separate a call voice by directions, thereby amplifying the call voice by amplifiers 30 and 31. Amplifiers 30 and 31 have gain control. Contact 34, when this gain control operates and gains of amplifiers 30 and 31 both reach 0dB, sends an output and the information is read out by CONT to reset relay LP, thereby forming the by-passing circuit for TRK. Thus, the transmission of an abnormal sound accompanying the audible signal of a calling tone until the level control of AMP operates and a decrease in call voice due to the excessive operation of the gain control can be prevented.

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