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11. 发明专利

JPH02277339A RING LAN SYSTEM 失效
公开(公告)号：JPH02277339A
公开(公告)日：1990-11-13
申请号：JP9746989
申请日：1989-04-19
申请人： HITACHI LTD , HITACHI MICROCUMPUTER ENG
发明人： NAKAYAMA HARUYUKI , SUKEGAWA FUMIO , NAKAMURA KAZUNORI
IPC分类号： H04L12/42
摘要： PURPOSE:To improve the throughput among user equipments of packet switching system information by using a master node equipment to apply transmission control so that a ring circulation delay of packet switching system information is a value in response to a traffic unit of packet switching system information in a ring. CONSTITUTION:A delay is applied to a slot 61 of line switching system information to insert the slot 61 to a fixed location in a line switching system information transmission area 71 and no delay is applied to a slot of packet switching system information to be relayed but relayed as soon as possible. The delay in the slot of the packet switching system information is varied with a number of slots subject to buffering in a packet switching system information relay buffer, that is, a traffic of the packet switching system information. When the delay in the relay of the packet switching system information is minimum, only the ring transmission delay and the in-node processing delay exist and the throughput of the packet switching system information between user node equipments is improved.

12. 发明专利

JPS6462042A CLOCK SYNCHRONIZING CIRCUIT 失效
公开(公告)号：JPS6462042A
公开(公告)日：1989-03-08
申请号：JP21933287
申请日：1987-09-02
申请人： HITACHI LTD , HITACHI MICROCUMPUTER ENG
发明人： KINOSHITA MASASHI , MASUDA TAKASHI , SUKEGAWA FUMIO
IPC分类号： H04L7/00
摘要： PURPOSE:To supply a high speed synchronizing clock signal to a system independently of an input clock signal by using a characteristic of a PLL circuit capable of outputting even when no input clock signal exists as a 1st synchronizing part and using an LC circuit capable of high speed oscillation as a 2nd synchronizing part. CONSTITUTION:A pre-stage PLL circuit 1 as the 1st circuit section and a post- stage synchronizing circuit 2 as the 2nd circuit section are connected in series. The output of the pre-stage PLL circuit 1 is given to the post-stage synchronizing circuit 2 and branched and fed back to the pre-stage PLL circuit 1 via a frequency divider 3. Since the phase synchronizing feedback circuit such as the PLL circuit 1 or the like in the 1st synchronizing part is capable of being run itself, even when the input system is separated and the input clock signal is interrupted, the output clock signal is supplied to the system. Moreover, the element or circuit coping with the high speed is adopted for the 2nd synchronizing section, the synchronizing is attained even to a high speed clock signal. Thus, a high speed synchronizing clock signal is supplied to the system.

13. 发明专利

JPS6460038A SYSTEM FOR CONNECTING HIGH-SPEED DIGITAL NETWORK 失效
公开(公告)号：JPS6460038A
公开(公告)日：1989-03-07
申请号：JP21538987
申请日：1987-08-31
申请人： HITACHI LTD
发明人： MATSUMURA HISASHI , NIWA TOKUHIRO , SUKEGAWA FUMIO
摘要： PURPOSE:To connect a sub-managing node with a high-speed digital network even when a managing node has a trouble by performing an clock input from the high-speed digital network with the managing node and the sub-managing node, and supplying the clock from the sub-managing node when the managing node has the trouble. CONSTITUTION:Usually, a managing node 3 inputs the clock from a high-speed digital network 1 through a clock signal line 2, and establishes the synchronization of a whole local area network LAN. When the managing node 3 has the trouble, a sub-managing node 4 acts for a LAN managing function, and continues to operate as the LAN. The node signal line 2 is also connected with the sub-managing node 4 from the high-speed digital network 1, and when the node 4 substitutes the LAN managing function, it inputs and succeeds the clock through the clock signal line 2, establishes the synchronization of the whole LAN, and attain data transmission/receipt between the high-speed digital network 1. Thus, when the managing node 3 has the trouble, an action as the LAN can be continued.

14. 发明专利

JPH11261668A CONTROL SYSTEM FOR MULTIPLEXING COMMUNICATION DEVICE 失效
公开(公告)号：JPH11261668A
公开(公告)日：1999-09-24
申请号：JP6081898
申请日：1998-03-12
申请人： HITACHI LTD
发明人： OYA YOICHI , SUKEGAWA FUMIO
IPC分类号： H04L29/14
摘要： PROBLEM TO BE SOLVED: To provide a control system for multiplexing a communication device which disregards a wrong switching direction and keeps a normal connection state, when a fault occurs in a device which directs the switching of connection of a circuit for a multiplexed communication device. SOLUTION: A switching directing device fault notification signal line is prepared between a switching directing device 1 and a circuit switching device 2, to make the device 1 notify the device 2 of its fault when a software runaway is detected by the device 1. Meanwhile, a circuit is prepared in the device 2 such that the device 2 disregards the switching direction given from the device 1 and holds the current switching state of a circuit changeover SW 2-7, when the fault of the device 1 is notified.

15. 发明专利

JPH11168487A LOOP COMMUNICATION METHOD 失效
公开(公告)号：JPH11168487A
公开(公告)日：1999-06-22
申请号：JP33392797
申请日：1997-12-04
申请人： HITACHI LTD
发明人： SUKEGAWA FUMIO
IPC分类号： H04L12/437
摘要： PROBLEM TO BE SOLVED: To provide a communication method with which both transmission lines can be effectively utilized although a loop communication system conventionally uses one of two transmission lines duplexed to ensure fault tolerance of a loop or node as while keeping the other line a reserve when these two transmission lines are provided. SOLUTION: In a loop communication system for mutually transmitting data of plural terminals 61 and 62 connected to a plurality of nodes through the loop while having the plurality of nodes 21-26 and two transmission lines of 0 system transmission line 11 for oppositely connecting these nodes in loop and of reserve 1 system transmission line 122, a transmission frame to be distributed along two transmission lines is provided with data validity display A and data number display DN as control data for transmission/reception data, and is provided with transmission line system display L and loop back display LB as control data for the frame.

16. 发明专利

JPH09162915A MAINTENANCE USE TELEPHONE SYSTEM IN LOOP LAN 失效
公开(公告)号：JPH09162915A
公开(公告)日：1997-06-20
申请号：JP31996995
申请日：1995-12-08
申请人： HITACHI LTD
发明人： SUKEGAWA FUMIO
IPC分类号： H04M9/02 , H04L12/437
摘要： PROBLEM TO BE SOLVED: To obtain the maintenance use telephone system in a loop LAN where communication among plural maintenance telephone sets is made without the need for control by hardware and software for inter-node communication by providing a maintenance telephone set transmission reception section to each node. SOLUTION: A maintenance telephone set transmission reception section 5 receives received data in its reception buffer (1) 402, uses a voice validity check section 403 to check the data, and delivers the data to a telephone set via a reception buffer (2) 406 to speech i/f 409 when the data are valid voice data. In the case of transmission, voice data are stored in a transmission buffer (1) 412 and the voice data are sent to a transmission line access section in a node via a transmission buffer (2) 414. Thus, the voice data outputted from an optional maintenance telephone set are received by any maintenance telephone set and the maintenance telephone system in a loop LAN is obtained, in which the communication between optional maintenance telephone sets is attained without the need for an exchange.

17. 发明专利

JPH07249456A CONNECTOR 失效
公开(公告)号：JPH07249456A
公开(公告)日：1995-09-26
申请号：JP3811294
申请日：1994-03-09
申请人： HITACHI LTD , HITACHI MICOM SYST KK
发明人： SUGASAWA KATSUYA , HONDA TORU , TAMURA YASUAKI , MIYAZAKI MASAYOSHI , SUKEGAWA FUMIO
IPC分类号： H01R13/652 , H01R24/00
摘要： PURPOSE:To improve earth connection characteristics between a connector and a device metal panel in a slide connector. CONSTITUTION:An earth plate 5 is pinched between a device side connector 1 and a slide plate 6 for preventing slipping of the cable attached to it so that its both ends are bent; its edge comes into contact with a metal panel 4; and its center part is bent and comes into contact with a metal shell of the device side connector. Therefore, electromagnetic noise can be prevented by earth connection between the metal panel 4 and the metal shell.

18. 发明专利

JPH04286436A NODE EQUIPMENT FOR INDEPENDENT SYNCHRONIZATION MULTI-MEDIAM LAN 失效
公开(公告)号：JPH04286436A
公开(公告)日：1992-10-12
申请号：JP5094191
申请日：1991-03-15
申请人： HITACHI LTD , HITACHI MICOM SYST KK
发明人： SUKEGAWA FUMIO , SUGAWARA TAKASHI , MOTOKI YOSHIKO , WADA KOJI
IPC分类号： H04L7/00 , H04L12/42
摘要： PURPOSE:To prevent increase of the delay of relaying in each node by relaying a synchronization data relayed to a succeeding node not though a synchronization buffer. CONSTITUTION:A reception data is relayed to a succeeding node equipment via a relay path 54 and a selector 53 in a node equipment and inputted simultaneously to a bufer 51 for independent synchronization. The buffer 51 outputs the reception data according to a network synchronization clock to a synchronization terminal equipment 6. A transmission data from the terminal equipment 6 is inputted to a network synchronization buffer 52, from which the data is outputted according to the independent synchroniation clock, fed to a frame processing section 32 via a selector 53, superimposed on a synchronization data area of an information frame and sent to a succeeding node equipment. Thus, the connection of a synchroniging terminal equipment 6 to the node equipment is attained and jitter caused accompanying the regeneration of the network synchronization clock is absorbed without increasing the delay of relaying.

19. 发明专利

JP2007207130A Information processor management system 审中-公开
标题翻译：信息处理器管理系统
公开(公告)号：JP2007207130A
公开(公告)日：2007-08-16
申请号：JP2006027851
申请日：2006-02-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUKEGAWA FUMIO , SHIRAISHI TSUTOMU , MAEDA TETSUYA , KOYAMA YASUHIRO
IPC分类号： G05B19/418
CPC分类号： Y02P90/02
摘要： PROBLEM TO BE SOLVED: To provide a management system for an information processor, capable of easily acquiring management information of the information processor even after assembling the information processor. SOLUTION: In this information processor management system, a basic control part 2-1, an option part 2-2, a FAN 2-6, and a power source part 2-8 or the like of the information processor 2 each have a high-function electronic tag wherein an interface readable/writable even from an MPU 2-1-1 is added to an electronic tag readable/writable from the outside. The MPU 2-1-1 reads the management information even from a portion that is not a logic part such as the FAN 2-6 or the power source part 2-6, and acquires the management information of the information processor 2. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供用于信息处理器的管理系统，即使在组装信息处理器之后，也能够容易地获取信息处理器的管理信息。解决方案：在该信息处理器管理系统中，每个信息处理器2的基本控制部分2-1，选项部分2-2，风扇2-6和电源部分2-8等具有高性能电子标签，其中甚至从MPU 2-1-1可读/写的接口从外部添加到可读/写的电子标签。 MPU 2-1-1甚至从FAN2-6或者电源部分2-6等不是逻辑部分的部分读取管理信息，取得信息处理部2的管理信息。
版权所有（C）2007，JPO＆INPIT

20. 发明专利

JP2007180590A Housable lever mechanism and electronic device 审中-公开
标题翻译：房屋杠杆机构和电子设备
公开(公告)号：JP2007180590A
公开(公告)日：2007-07-12
申请号：JP2007090195
申请日：2007-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UNNO HIROTAKA , SUKEGAWA FUMIO , KAMENO HIDEJI
IPC分类号： H05K7/14
摘要： PROBLEM TO BE SOLVED: To provide a lever mechanism for relaxing the limit of the mounting of parts and a mechanism for automatically recognizing that the housing of the lever mechanism is completed, and for displaying it.
SOLUTION: A lever 201 clamps a protrusion 101 formed at an electronic package 1 in a groove 202 formed at the lever. This protrusion 101 is formed with a chevron-shaped through-groove 100, and a lever rotary shaft 301 is moved along the through-groove 100 of the protrusion 101 according as the electronic package 1 is inserted or extracted. When inserting the electronic package 1 into a rack-shaped housing part, the rotary shaft 301 of the lever is moved to a terminal part 103 of the through-groove 100, and, when the electronic package 1 is normally housed, the rotary shaft 301 is disposed at a terminal part 105 of the through-groove 100. When the electronic package 1 is normally housed, the lever is housed in the protrusion 101 of the electronic package 1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于放松部件安装极限的杠杆机构和用于自动识别杠杆机构的壳体完成并且用于显示它的机构。解决方案：杆201将形成在电子封装1处的突起101夹在形成在杠杆上的槽202中。该突起101形成有人字形的贯通槽100，并且，根据插入或拔出电子封装1，杆旋转轴301沿突起101的贯通槽100移动。当将电子包装1插入齿条形壳体部分时，杠杆的旋转轴301移动到通孔100的端子部分103，并且当电子包装1被正常容纳时，旋转轴301 设置在通孔100的端子部分105.当电子封装1被正常容纳时，杠杆容纳在电子封装1的突起101中。版权所有（C）2007，JPO＆INPIT

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