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1. 发明专利

JP2515770B2 失效
公开(公告)号：JP2515770B2
公开(公告)日：1996-07-10
申请号：JP30641586
申请日：1986-12-24
申请人： HITACHI LTD
发明人： MIZUHARA NOBORU , HOSHI TOORU , KASHIO JIRO , MORITA TAKASHI
IPC分类号： H04M3/22 , H04M3/00 , H04Q3/00 , H04Q3/545

2. 发明专利

JPS56149893A NETWORK EXTENSION SYSTEM 失效
公开(公告)号：JPS56149893A
公开(公告)日：1981-11-19
申请号：JP5288480
申请日：1980-04-23
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： HOSHI TOORU , NAKAMURA MASANORI , YAMAKOSHI SETSUO , SHIBUYA TADASHI , HIDAKA TOSHIO
IPC分类号： H04Q3/68
摘要： PURPOSE:To execute an extension test without reducing the processing capacity of a network, by constituting so that the pre-extension junctors and the post-extension junctors can be installed together. CONSTITUTION:In case of extension of the network LIN1 and TLN1, at first, the junctor subgroups J2, J3, J4 are connected before blocking the junctor subgroup J1. In the LLN0 and the TLN0, since connectors C4, C5 are connected in parallel with connectors C2, C3, the extension junctor subgroups J2, J3 can be connected without removing the junctor subgroup J1. Even when the extension junctors J2-J4 have been connected, the channel is set by LLN0, J0 or J1 and TLN0 as usual, by leaving said junctors blocked against a general call. When the test has been completed, the processing logic is changed so that the connection processing is executed by the post-extension network constitution against a general call. And, after the processing logic has been changed, the junctor subgroup J1 is detached.

3. 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.

4. 发明专利

JPS54139313A STANDDBY DRIVING CONTROL SYSTEM 失效
公开(公告)号：JPS54139313A
公开(公告)日：1979-10-29
申请号：JP4645978
申请日：1978-04-21
申请人： HITACHI LTD
发明人： HOSHI TOORU
IPC分类号： H04M3/08 , G06F11/20 , H04M3/12
摘要： PURPOSE:To perform economically the stand-by driving control of a controlled object by subjecting a part of load function parts, which is the same load function part in all load units, to the stand-by driving control by the common stand-by driving constitution part in a stand-by driving unit in the electronic exchange channel control system. CONSTITUTION:Single stand-by channel relay driving unit ST-SCRC is provided for networks NW1 to NWm and trunks TRK1 to TRKn which are controlled objects. When a trouble occurs in any of channel driving units SC1 to SCm and relay driving units RC1 to RCn, the corresponding one of stand-by switching relays TS1 to TSm and TR1 to Rn is operated by the instruction of controller CONT and performs the stand-by driving control of the corresponding controlled object in stead of the driving unit where the trouble occurs. In this case, the stand-by driving unit is constituted commonly for the common load part of load parts included in networks NW1 to NWm and trunks TRK1 to TRKn, thereby performing the driving control.

5. 发明专利

JPS5291303A CHECKING SYSTEM FOR DEVELOPMENT RELAY 失效
公开(公告)号：JPS5291303A
公开(公告)日：1977-08-01
申请号：JP745076
申请日：1976-01-28
申请人： HITACHI LTD
发明人： HOSHI TOORU
IPC分类号： H04Q1/20 , H01H47/00 , H04M3/32 , H04Q3/545 , H04Q3/72
摘要： PURPOSE:To enable relay checking in specified stages by incorporating, into a status indication, the outputs from the check circuit for the relays in specified stages of a development relay thereby obtaining an economical driving apparatus.

6. 发明专利

JP2539409B2 失效
公开(公告)号：JP2539409B2
公开(公告)日：1996-10-02
申请号：JP2821087
申请日：1987-02-12
申请人： HITACHI LTD
发明人： HOSHI TOORU , MIZUHARA NOBORU , TSUMURA TOKUMITSU , MORITA TAKASHI
IPC分类号： H04L12/20 , H04L12/50

7. 发明专利

JPS6012837A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6012837A
公开(公告)日：1985-01-23
申请号：JP12118683
申请日：1983-07-04
申请人： HITACHI LTD
发明人： HOSHI TOORU , SUZUKI MICHIO , TAKENOUCHI HIROO , KONASE TOSHIAKI , HIYAMA KUNIO
IPC分类号： H04L29/10 , H04L12/00 , H04L13/00 , H04L11/02
摘要： PURPOSE:To reduce the number of signal lines between a data terminal and a data switching network by synthesizing plural pairs of signal lines and then separating these signal lines again in the interface between the data terminal and data switching network. CONSTITUTION:A transmission data line T and a control line C from a terminal 1 having an X.21 interface are combined to a T' line in an interface device 3, then separated into respective information of the T line and C line of the X.21 interface again by an interface device 4 in a network terminating device 2. On the other hand, a receiving data line R to the terminal 1, an indication line I and a signal element clock line S are synthesized to an R' line by the device 4 in the device 2, separated again in the device 3 and then transmitted to the terminal 1. Therefore, the devices 3 and 2 are satisfactorily connected only by connecting the two pairs of signals lines T', R', and if the device 3 and the terminal 1 are arranged adjacently, the section connecting the five pairs of signal lines T, R, C, I and S requires no long distance.

8. 发明专利

JPS59224941A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS59224941A
公开(公告)日：1984-12-17
申请号：JP9935683
申请日：1983-06-06
申请人： HITACHI LTD
发明人： SUZUKI MICHIO , HOSHI TOORU , TAKENOUCHI HIROO , KONASE TOSHIAKI , HIYAMA KUNIO
IPC分类号： H04L29/02 , H04L12/00 , H04L11/02 , H04L13/00
摘要： PURPOSE:To multiplex a control signal on a data signal by providing an interface converting circuit comprising a multiplexer circuit, a demultiplexer circuit, a synhronizing circuit and a digital PLL circuit to each of a data exchange network and a data terminal device respectively to reduce the number of signal lines. CONSTITUTION:A data transmission system is constituted of a terminal device DTE and a line terminator DCE, and the multiplexer circuit 2 of the interface converting circuit (2) of the DCE multiplexes the information of R and I lines of an X.21 interface. Further, the multiplexer circuit 1 of the interface converting circuit (1) of the DTE multiplexes the information on T and C lines in the interface and transmits it to a line T'. Then the conversion and transmission of the information are controlled by respective synchronizing circuits 1, 2, the number of signal lines is reduced and the control signal is multiplexed on the data signal.

9. 发明专利

JPS5430710A DECENTRALIZED MOUNTING METHOD FOR PATHHSELECTIVE RELAY 失效
公开(公告)号：JPS5430710A
公开(公告)日：1979-03-07
申请号：JP9616777
申请日：1977-08-12
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： KIKUTA TAKASHI , SHIMIZU TAKESHI , MINATO ATSUSHI , HOSHI TOORU , MOTOTANI JIYOU
IPC分类号： H04Q1/02 , H04Q1/08
摘要： PURPOSE:To make it possible to employ a short-life relay, and to make narrow the range of trouble influence by decentralizing and mounting a path-selective relay on each trunk package.

10. 发明专利

JPS6038956A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6038956A
公开(公告)日：1985-02-28
申请号：JP14638583
申请日：1983-08-12
申请人： HITACHI LTD
发明人： SUZUKI MICHIO , HIYAMA KUNIO , HOSHI TOORU , TAKENOUCHI HIROO , KONASE TOSHIAKI
IPC分类号： H04L25/38 , H04L25/06 , H04L29/10
摘要： PURPOSE:To reduce the number of connection lines between data terminal line terminators by sampling the level of lines T and R in a speed, e.g., 10 times the data transmission speed, and transmitting alternately the information after the said sampling in a speed >= twice the sampling speed while putting plural bits together. CONSTITUTION:A level sampling circuit 1 samples the level state of the line R in a speed faster than the data transmission speed, e.g., 10 times in an interface converter CONV2 of the line terminator side. When a Manchester coding circuit 14 receives a transmission request, the circuit 14 transmits data to a line L in a speed being twice the sampling speed from a shift register 13, transmits a transmission end signal to a transmission direction control circuit 3 through a signal line 6 when the transmission of data is finished. When the data from the line L is received in an interface converter CONV1 at the data terminal device DTE side waiting for the reception from the CONV2 at the data terminal DTE side, the data is inputted to a Manchester decoding circuit 15 and transmitted to a shift register 16 after decoding. Thus, the data terminal line terminators are connected by a couple of lines in realizing the data exchange system or the like connecting the DTE in accordance with the interface protocol of the CCITT recommendations X.20.

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