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1. 发明专利

JP2010283467A Terminal device, transmission method, and transmission system 审中-公开
标题翻译：终端设备，传输方法和传输系统
公开(公告)号：JP2010283467A
公开(公告)日：2010-12-16
申请号：JP2009133385
申请日：2009-06-02
申请人： Hitachi Information & Control Solutions Ltd , Hitachi Ltd , 株式会社日立情報制御ソリューションズ , 株式会社日立製作所
发明人： SOTOOKA RYUSUKE , TOMIZAWA HIROSHI
IPC分类号： H04L13/08 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To transmit data to a controller in consideration of importance of data as well as relation between data.
SOLUTION: A terminal device includes: a data storage part 13 for storing a plurality of input data including importance information and information about relation with other data; and a receiving part 10 for receiving an inquiry signal transmitted from the controller 2. When the inquiry signal is received, it is determined whether or not the amount of data stored in the data storage part 13 exceeds a preset threshold. When it is determined that it exceeds the threshold value, the stored data are concatenated on the basis of the information on the relation with the other data. Moreover, the concatenated data or unconcatenated data are stored in a transmission data storage part 19 as transmission data. The transmission data stored in the transmission data storage part 19 are successively read and transmitted in order on the basis of importance information included in the transmission data.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：考虑到数据的重要性以及数据之间的关系，将数据发送到控制器。终端设备包括：数据存储部分13，用于存储包括重要性信息和关于其他数据的信息的多个输入数据; 以及用于接收从控制器2发送的查询信号的接收部分10.当接收到查询信号时，确定存储在数据存储部分13中的数据量是否超过预设阈值。当确定它超过阈值时，所存储的数据基于与其他数据的关系的信息来连接。此外，连接的数据或未连接的数据作为发送数据存储在发送数据存储部分19中。存储在发送数据存储部19中的发送数据依次包含在发送数据中的重要性信息依次读出。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2004213412A Duplex controller 审中-公开
标题翻译：双控制器
公开(公告)号：JP2004213412A
公开(公告)日：2004-07-29
申请号：JP2003000401
申请日：2003-01-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UEDA SHINICHI , TOMIZAWA HIROSHI , INADA SHUNJI , MASUKO HIDEAKI
IPC分类号： G05B9/03
摘要： PROBLEM TO BE SOLVED: To provide a duplex controller capable of performing control whose reliability is high without damaging the stable operation of the duplex controller.
SOLUTION: A main system controller 1 and a stand-by system controller 2 are provided with arithmetic processing means 10 and 20 for executing the arithmetic operation of control data and information data, control system communicating means 12 and 22 for communicating the control data through a control system line 4, information system communicating means 13 and 23 for communicating the information data through an information system line 5, storage means 11, 15, 21, and 25 for storing data necessary for the arithmetic processing of the arithmetic processing means 10 and 20, and state monitoring means 14 and 24 for monitoring the state of the other system controller. When any abnormality is caused in the information system communicating means 13, the main system controller 1 switches it to the stand-by system information system communicating means 23 to continue the operation.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供能够执行可靠性高的控制的双工控制器，而不损害双工控制器的稳定操作。解决方案：主系统控制器1和备用系统控制器2设置有用于执行控制数据和信息数据的算术运算的算术处理装置10和20，用于传送控制数据的控制系统通信装置12和22 通过控制系统线路4的数据，用于通过信息系统线路5传送信息数据的信息系统通信装置13和23，用于存储运算处理装置的算术处理所必需的数据的存储装置11,15,21和25 10和20以及用于监视其他系统控制器的状态的状态监视装置14和24。当在信息系统通信装置13中发生任何异常时，主系统控制器1将其切换到备用系统信息系统通信装置23以继续操作。版权所有（C）2004，JPO＆NCIPI

3. 发明专利

JP2010028533A Data transmission apparatus, data transmission method and data transmission system 有权
标题翻译：数据传输设备，数据传输方法和数据传输系统
公开(公告)号：JP2010028533A
公开(公告)日：2010-02-04
申请号：JP2008188624
申请日：2008-07-22
申请人： Hitachi Information & Control Solutions Ltd , Hitachi Ltd , 株式会社日立情報制御ソリューションズ , 株式会社日立製作所
发明人： SOTOOKA CHIEKO , TOMIZAWA HIROSHI
IPC分类号： H04L29/06
摘要： PROBLEM TO BE SOLVED: To provide a data transmission apparatus capable of transmitting data while guaranteeing time critical property even if high-priority data items for a plurality of purposes of use are present.
SOLUTION: In data transmission apparatuses 1 connected to the same communication line 2 for transmitting and receiving data to/from each other, each of the data transmission apparatus includes: an occupancy determination unit 12 for determining whether occupancy of the line is required for data transmission on the basis of emergency of transmission data; a transmission right request unit 13 for requesting a transmission right to the other data transmission apparatus 1 in a case where it is determined that occupancy is required; a transmission right determination unit 14 for determining whether line occupancy is enabled; and a mode control unit 11 comprising a plurality of transmission modes with different band amounts for setting a transmission mode based on a data transmission status. Furthermore, a transmission right permission unit 15 is provided for receiving the transmission right request from the other data transmission apparatus 1 and notifying the apparatus of a transmission permission on the basis of the data transmission status.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使存在用于多个使用目的的高优先级数据项，也能够提供能够发送数据同时保证时间关键性的数据发送装置。解决方案：在连接到用于彼此发送和接收数据的同一通信线路2的数据传输设备1中，每个数据传输设备包括：占用确定单元12，用于确定是否需要线路占用用于在传输数据紧急情况下进行数据传输; 发送权请求单元13，用于在确定需要占用的情况下请求向另一数据发送装置1发送权限; 用于确定是否启用线路占用的发送权限确定单元14; 以及模式控制单元11，其包括具有不同频带量的多个传输模式，用于基于数据传输状态设置传输模式。此外，发送权允许单元15用于从其他数据发送装置1接收发送权请求，并且基于数据发送状态通知装置的发送许可。版权所有（C）2010，JPO＆INPIT

4. 发明专利

DE3267151D1 LOOP TYPE DATA HIGHWAY SYSTEM 未知
公开(公告)号：DE3267151D1
公开(公告)日：1985-12-05
申请号：DE3267151
申请日：1982-07-05
申请人： HITACHI LTD
发明人： MIZOKAWA SADAO , HAMADA TAKUJI , TOMIZAWA HIROSHI , FUSHIMI HITOSHI
IPC分类号： G06F13/00 , H04L12/433 , H04L11/16
摘要： A loop type data highway system in which a plurality of data transmission control stations (abbreviated herein as stations) are connected in cascade to a loop transmission line. Each of the stations responds to a polling frame inquiring of request for reservation of the transmission line. The polling frame is composed of a first field for inquiring of the line reservation request and a second field indicative of whether the line is reserved or not. Each station receives signals inputted from the upstream side along the line and sequentially repeats them to the downstream side along the line without delay. In the station having the line reservation requests, a pattern representative of the line reservation is written in the second field after reception of the first field and sends out the polling frame to the downstream. When the second field as received indicates the non-reserved state of the transmission line, transmission of data is initiated in succession to the second field.

5. 发明专利

JP2002044113A HUB DEVICE 失效
公开(公告)号：JP2002044113A
公开(公告)日：2002-02-08
申请号：JP2000219686
申请日：2000-07-19
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： WATANABE SHIZUYA , TOMIZAWA HIROSHI , NITTA MAKOTO
IPC分类号： H04L12/44
摘要： PROBLEM TO BE SOLVED: To provide a hub device that can diagnose the occurrence of a fault from the reception processing to the transmission processing of the hub device even during execution of on-line communication without deteriorating the real time performance of communication data. SOLUTION: The hub device is provided with a data transmission reception processing device 13 that receives data from stations 3, adds a diagnostic signal to a gap time between the received data to process the received data and to control a transmission destination. The hub device detects the diagnostic data from the data sent from the data transmission reception processing device 13, discriminates whether or not the diagnosis is finished and discriminates it as the occurrence of a fault when the diagnostic signal is transmitted but no completion of the diagnosis is detected.

6. 发明专利

JP2002016664A LOOPBACK TEST METHOD AND DEVICE 失效
公开(公告)号：JP2002016664A
公开(公告)日：2002-01-18
申请号：JP2000197886
申请日：2000-06-27
申请人： HITACHI LTD
发明人： YAMATANI SHOGO , WATANABE SHIZUYA , TOMIZAWA HIROSHI
IPC分类号： G06F11/22 , G06F13/00 , H04L29/14
摘要： PROBLEM TO BE SOLVED: To provide a loopback test method that can be executed online. SOLUTION: In a system that is provided with computers 11, 12,..., each having a loopback test function and a line concentration device (HUB) 31 having ports 1, 2, etc., connected to the computers through a twisted pair cable 21 having a transmission line 211 and a reception line 212, each port has an SW1 that connects the transmission line and the reception line, and a communication control section 3111 that issues a test request in the absence of transmission reception data from a computer connected to itself and other ports, the SW1 is connected when receiving an ACK from the computer to conduct a test from the computer. The HUB 31 has a buffer that temporarily stores data received from the other port during the test.

7. 发明专利

JP2000099358A CYCLIC COMMUNICATION SYSTEM 失效
公开(公告)号：JP2000099358A
公开(公告)日：2000-04-07
申请号：JP27093798
申请日：1998-09-25
申请人： HITACHI LTD
发明人： WATANABE SHIZUYA , TOMIZAWA HIROSHI
IPC分类号： G06F11/20 , G06F15/167 , H04L12/24 , H04L12/26 , H04L12/40
摘要： PROBLEM TO BE SOLVED: To attain improvement in the reliability of cyclic transmission switching to a slave system in the case of master system fault by providing a mechanism for switching the setting area of a shared memory at another station to a transmission area, reception area or transmission/reception stop area. SOLUTION: A shared memory 6 writes/reads data from a host computer 4 of a present station 2 or writes data received from another station 2. A table 7 for transmission/reception setting stores the setting information of transmission area, reception area and transmission/reception stop area for each block of the shared memory 6. In this case, transmission/reception setting information is added for controlling the data transmission/reception operation of the other station 2 to transmission data by the instruction of the host computer 4 so as to transmit data to the shared memory area set to the transmission area by the other station 2. At the station to receive the data to which this transmission/reception setting information is added, this information is fetched and the data transmission/reception operation of the present station 2 is changed.

8. 发明专利

JPH04298199A CLOCK SUPPLY DEVICE AND COMMUNICATION NETWORK SYSTEM 失效
公开(公告)号：JPH04298199A
公开(公告)日：1992-10-21
申请号：JP6336191
申请日：1991-03-27
申请人： HITACHI LTD , HITACHI CABLE
发明人： MARUYAMA HISAYUKI , MABUCHI HIROSHI , MIZOKAWA SADAO , TOMIZAWA HIROSHI
IPC分类号： H04L7/00 , G06F1/06 , H04Q11/04
摘要： PURPOSE:To switch a clock supply system while a self-running clock of a PLL is latched. CONSTITUTION:The system is provided with clock selection means 52 selecting a clock from clock supply systems 22, 26, a multiplier means 56 multiplying a frequency of an input clock selected by the clock selection means 52, fault detection means 70, 72 monitoring a generating state of the clock selected by the clock selection means 52 based on an output clock of the multiplier means 56 and detecting the occurrence of a fault in the input clock based on the result of monitor, a changeover means 74 outputting a switching signal to the clock selection means 52 by the detection output of the fault detection means 70, 72, and a PLL provided with a D-T flip-flop 58, a loop filter 64, a voltage controlled oscillator 66 and a frequency divider 68 is used for the multiplier means 56 and the clock is selected while the self-running clock of the PLL is latched.

9. 发明专利

JPH01209837A TRANSMISSION SYSTEM IN DECENTRALIZED MULTIPLEX EXCHANGE SYSTEM 失效
公开(公告)号：JPH01209837A
公开(公告)日：1989-08-23
申请号：JP3408888
申请日：1988-02-18
申请人： HITACHI LTD
发明人： HAMADA TAKUSHI , YONEDA KATSUHIKO , YASUMOTO SEIICHI , TOMIZAWA HIROSHI
IPC分类号： H04Q11/04 , H04L11/00
摘要： PURPOSE:To prevent the reduction in transmission efficiency by using a time slot being one multiplex unit in a loop transmission line in common for the connection of plural stations accommodated in the loop transmission line. CONSTITUTION:Effective channels in local multiplex information in plural stations ST connected to a network comprising loop transmission lines are linked. Thus, the time slot on the loop transmission line used to send the information between a center side station CST 205 and plural local stations DST 204 is limited to one and the information transmission efficiency on the loop transmission line is improved more than the case with the assignment of one time slot on the loop transmission line onto multiplex information of each local side station DST.

10. 发明专利

JPS6383855A COMPOSITE COMPUTER SYSTEM 失效
公开(公告)号：JPS6383855A
公开(公告)日：1988-04-14
申请号：JP22830686
申请日：1986-09-29
申请人： HITACHI LTD
发明人： TOMIZAWA HIROSHI , YASUMOTO SEIICHI , OKADA MASAKAZU , FUSHIMI HITOSHI
IPC分类号： G06F13/12 , G06F15/17
摘要： PURPOSE:To improve reliability of a composite computer system with use of a memory of each computer and with no use of a shared memory, by providing a multiplexer in place of the shared memory and performing communication of data among computers via multiplexers. CONSTITUTION:Each computer secures communication with a main memory 16 via a communication adaptor 11 and a data exchange device (multiplexer) I. In other words, a memory needed for a computer II if existing among those memories of a computer I is transferred via the device I in the packet communication using a time slot of a transmission frame. Then the multi-address communication is carried out in case a computer III needs the same data. In a system where many computers are connected, a function code communication method is applied to send data to a desired computer only. As a result, the memory 16 of each computer has the same function as a shared memory to omit a data copying function to a back-up system that is needed for the shared memory together with a simple switching action of computers.

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