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51. 发明专利

JPS62268245A CONTINUITY TEST SYSTEM 失效
公开(公告)号：JPS62268245A
公开(公告)日：1987-11-20
申请号：JP11081686
申请日：1986-05-16
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： KOMATSU AYAFUMI , SANBE TAKESHI
IPC分类号： H04M3/26
摘要： PURPOSE:To eliminate the need for a terminal and the hardware exclusively for the test by providing a loop back setting to the interface section of photoelectric/electrooptic signal conversion and using an idle signal informing the open channel to an opposite transmission equipment so as to conduct the continuity test for the channel. CONSTITUTION:In testing a path 1 between a B.I terminal and an A.O terminal between interface sections SDCA and SDCB of photo electric/electrooptic conversion corresponding to input/output lines, a specific pattern signal from an IDLE is returned to the DET of the IDLE via the path of IDLE (signal device)-T.I terminal-SSW(channel)-B.O terminal-TST loopback of SDCB-B.I terminal-path 1-A.O terminal-TST loopback of SDCA-A.I terminal-SSW T.O terminal-DET (detector) of IDLE so as to discriminate whether or not a normal path is formed. If the path is not normally completed, the path 2 is checked by the DET of the SDCB, the path 1 is checked by the DET of the SDC A and the path 3 is checked by the DET of the IDLE to decide which path is faulty.

52. 发明专利

JPS6260347A SIGNAL PROCESSING SYSTEM IN SIGNAL COMMUNICATION 失效
公开(公告)号：JPS6260347A
公开(公告)日：1987-03-17
申请号：JP19946485
申请日：1985-09-11
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： KOMATSU AYAFUMI , UENO SUSUMU
IPC分类号： H04M7/14
摘要： PURPOSE:To simplify a time division switch section by writing a signal on a memory in the order of incoming signal, applying time slot conversion and providing a circuit section extracting a specific time slot only. CONSTITUTION:A signal S0 is written sequentially on addresses designated by a counter CNT in the incoming order to a memory M such as A0, D0, A1, D1...A31, D31. Then the address is written in the above order on a ROM so as to be read in the order of A0-A31 and D0-D31 and the output of the memory M is A0-A31, D0-D31 by accessing the address of the memory M via a selector SEL. Data CS0 is fetched in a flip-flop DF by controlling a clock CLK 2 to be outputted at the timing of CS0 in the signal S0. The CS signal in each TSR is used as an input to a multiplexer MPX and controlled to obtain an output in the order of CS0-CS15 by using a clock CLK 3.

53. 发明专利

JPS6251314A SIGNAL DETECTION SYSTEM 失效
公开(公告)号：JPS6251314A
公开(公告)日：1987-03-06
申请号：JP18952985
申请日：1985-08-30
申请人： HITACHI LTD
发明人： KOMATSU AYAFUMI
IPC分类号： H03K5/19 , H03K5/00
摘要： PURPOSE:To detect simply and surely the absence of a signal with high reliability by not using a common clock source but using an output clock of a clock extraction circuit corresponding to an output interface circuit. CONSTITUTION:A signal reproducing circuit consists of a clock extraction circuit 9 and a D flip-flop 10, a clock signal CLK is extracted from an input signal DATA having waveform distortion and the clock signal subjected to phase control is obtained by applying phase control to a PLL circuit and the waveform distortion is eliminated by using the D flip-flop 10 to cancel the input signal DATA while using the clock and the result is sent to a post-device. On the other hand, an input signal detection circuit 6 detects the presence of the input signal DATA and when it is present, the input signal DATA from the exchange switch 5 is sent as it is to the signal reproducing circuit via a changeover circuit 7, but when no input signal DATA exists, an idle signal from a common idle source 8 is sent to the signal reproducing circuit via a changeover circuit 7.

54. 发明专利

JPS60152140A SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPS60152140A
公开(公告)日：1985-08-10
申请号：JP715884
申请日：1984-01-20
申请人： HITACHI LTD
发明人： KOMATSU AYAFUMI
IPC分类号： H04L1/00 , H04Q1/24
摘要： PURPOSE:To verify correct/faulty in the signal line of the entire device without adding any parity line other than required signal lines by applying H/L control to one signal line among transmission data lines used as the parity line to transmit a signal to the reception side. CONSTITUTION:In turning on the switch of an incoming line 16 and an outgoing line 8, an ON/OFF bit is controlled so that the number of Hs of set/reset at 16X 8 cross points and an incoming line selection level signal INLV go to an odd number. If a data line has a fault when the switch of the incoming line 0 and the outgoing line 0 is turned on and if the INLV bit goes from L to H in mistake, the number of Hs of the INLV+ON/OFF bits is an odd number even if the ON/OFF bit is brought into L level to turn on the switch, no switch is turned on. In this case, the fault is found out that the switch path is not closed actually regardless of the turning on the switch.

55. 发明专利

JPS5516562A CONSTITUTING METHOD FOR SWITCH MATRIX 失效
公开(公告)号：JPS5516562A
公开(公告)日：1980-02-05
申请号：JP8942978
申请日：1978-07-24
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： KOMATSU AYAFUMI , ENDOU YUUJI , ISHIKAWA KIYOKAZU , SHIBUYA TADASHI , HIDAKA TOSHIO
IPC分类号： H04Q3/68 , H04Q3/00
摘要： PURPOSE:To reduce multicontact sealed elements, to rationalize the number of manufacturing processes, and to reduce control processes in number using a couple of contacts of the multicontact seal-in elements multi-connected internally as cut-off contacts. CONSTITUTION:The internal multiple connection 5 of eight multicontact-sealed elements 3-a arrayed horizontally is connected to subscriber's terminals (H0A, H0B)...(C7A, H7B) and respective couples of contacts 2 are connected to cut-off contacts to scanner terminals (CO0A, CO0B)...(CO7A, CO7B). Eight couples of contacts 4 connected through internal multiple connection 5 are connected corresponding to subscriber's terminals (H0A, H0B)...(H7A, H7B) through external connection 7, so that one multicontact-sealed element 3-b used vertically will be extended to the cross point contact matrixes of 8 by 7 and of 8 by 8.

56. 发明专利

JPS5419311A DELIVERY SYSTEM OF TALKIE SOUND 失效
公开(公告)号：JPS5419311A
公开(公告)日：1979-02-14
申请号：JP8356177
申请日：1977-07-14
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： KOSHIDA NAOKI , OGIWARA MASAO , OSAKABE YOSHITAKA , KOMATSU AYAFUMI , MAENO SHINICHI
IPC分类号： H04M3/50 , H04M3/18 , H04M3/30 , H04M3/36 , H04M3/38 , H04Q1/20
摘要： PURPOSE:To minimize the effect of earth failure on talkie tone as less as possible, by splitting the subscribers connected to one talkie sound generating source in a plurality of groups and by connecting the line B of each group to the talkie generating source via a diode or resistor.

57. 发明专利

JPS53108704A EXTENSION METHOD FOR PARTIAL MOUNTING METWORK OF ELECTRONIC SWITCHBOARD 失效
公开(公告)号：JPS53108704A
公开(公告)日：1978-09-21
申请号：JP2416277
申请日：1977-03-04
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , HITACHI LTD
发明人： MOTOTANI JIYOU , ENDOU YUUJI , GOTOU TOSHIKUNI , ISHIKAWA KIYOKAZU , OSAKABE YOSHITAKA , KOMATSU AYAFUMI
IPC分类号： H04Q3/68 , H04Q3/66
摘要： PURPOSE:To suppress bad influence of the switching service accompanying the extension at its minimum, by constituting a partial mounting network temporarily only at the extension part.

58. 发明专利

JPS5378101A IDENTIFICATION OF DATA COMMUNICATION SERVICE SUBSCRIBER AND ITS CHARGING SYSTEM 失效
公开(公告)号：JPS5378101A
公开(公告)日：1978-07-11
申请号：JP15339476
申请日：1976-12-22
申请人： HITACHI LTD
发明人： KOMATSU AYAFUMI
IPC分类号： H04M11/00 , H04M11/06 , H04M15/16
摘要： PURPOSE:To easily and surely identify the subscriber and perform communication service and charging, by detecting the secret number of the subscriber with the center.

59. 发明专利

JPS52120605A ROUTING EXTENSION SYSTEM ACCORDING TO GROUND 失效
公开(公告)号：JPS52120605A
公开(公告)日：1977-10-11
申请号：JP3753276
申请日：1976-04-02
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , HITACHI LTD , FUJITSU LTD
发明人： MURAI KIYOKAZU , NAKAMURA YASUAKI , SHIYUUBOU MIKIO , KOMATSU AYAFUMI , KUNIGAMI TOSHIO
IPC分类号： H04Q3/555 , H04Q3/00
摘要： PURPOSE:To enable an effective routing extnesion and to make the best use of telephone network, by preparing a plural number of extended routing paths which enable to route without using distance rotating method.

60. 发明专利

JPH10227986A OPTICAL SWITCH AND ITS MANUFACTURE, AND OPTICAL COMMUNICATION EQUIPMENT USING OPTICAL SWITCH 失效
公开(公告)号：JPH10227986A
公开(公告)日：1998-08-25
申请号：JP3172397
申请日：1997-02-17
申请人： HITACHI LTD , HITACHI CABLE
发明人： HORINO MASAYA , SATOU KAZUYASU , AKASHI TERUHISA , MURANISHI MASARU , KOMATSU AYAFUMI , KOBAYASHI MASARU , OKANO HIROAKI
IPC分类号： G02B26/08 , G02B6/122 , G02B6/35 , H04B10/00 , H04B10/27 , H04B10/02
摘要： PROBLEM TO BE SOLVED: To obtain a low-cost optical waveguide type switch with small insertion loss by forming a separation layer on a quartz glass substrate and forming cantilevers, an optical waveguide on them, optical waveguides, and a switch driving means which deforms the cantilevers on the separation layer. SOLUTION: On the quartz glass substrate 15, a quartz glass waveguide layer 13 and a movable-side optical waveguide 2 are formed on the cantilevers 3a and 3b across the separation layer 14. A coupling member 4 is formed on the free-end side of the cantilevers 3a and 3b, internal yokes 12a to 12d of soft magnetic bodies are formed opposite the coupling member 4 on the quartz glass waveguide layer 13 having a soft magnetic body film 5 is formed on its top surface, and on them, a driving part consisting of coils 6a and 6b, external yokes 7a and 7b of soft magnetic bodies, and a permanent magnet 8 is formed. Further, fixed-side optical waveguides 10 are formed on the free-end side of the movable-side optical waveguide 2 so that they face the free-end side according to the movement quantity of the waveguide.

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