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1. 发明专利

JP2006012297A Access control program of magnetic disk apparatus, access control apparatus using the access control program, and magnetic disk apparatus 审中-公开
标题翻译：磁盘设备的访问控制程序，使用访问控制程序的访问控制装置和磁盘设备
公开(公告)号：JP2006012297A
公开(公告)日：2006-01-12
申请号：JP2004188185
申请日：2004-06-25
申请人： Hitachi Information & Control Systems Inc , Hitachi Ltd , 株式会社日立ハイコス , 株式会社日立製作所
发明人： ISHIKURA HIDEJI , TANJI MASAYUKI , FUKUMARU HIROAKI , SUZUKI MASAHIRO
IPC分类号： G11B5/012 , G06F3/06 , G11B5/09 , G11B20/10 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide an access control program of a magnetic disk apparatus in which a suppression effect of the fixed point floating of a magnetic head can be improved. SOLUTION: Since a cylinder in which write-in or read-out is not performed and a skip is performed is provided among different cylinders in which the write-in or read-out of a magnetic disk is performed, a function in which a logic address specified to a read and write command issued by equipment utilizing the magnetic disk apparatus is converted to a converted logic address in which an interval between the last logic address of a cylinder priorly accessing to a cylinder performing write-in or read-out and an initial logic address of a cylinder accessing next is so that the logic address is skipped by the logic address corresponding to a skip cylinder and a function issuing a read and write command specifying this converted logic address to the magnetic disk apparatus are given, the number of skip cylinders is decided within a range in which the total of the number of cylinders required to use and the number of skip cylinders does not exceed the number of cylinders possessed by the magnetic disk. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可以提高磁头固定点漂浮的抑制效果的磁盘装置的访问控制程序。解决方案：由于在执行磁盘的写入或读出的不同气缸中提供不执行写入或读出并执行跳跃的气缸，所以在执行磁盘的写入或读出的不同气缸中提供了一种功能对由使用磁盘装置的设备发出的读写命令指定的逻辑地址被转换为转换后的逻辑地址，在该转换逻辑地址中，先前访问执行写入或读取的气缸的气缸的最后逻辑地址之间的间隔，并且接下来访问的气缸的初始逻辑地址是使得逻辑地址被跳过与跳过气缸相对应的逻辑地址，并且向磁盘设备发出指定该转换的逻辑地址的读和写命令的功能，跳过气缸的数量决定在使用的气缸总数和跳过气缸数不超过m所具有的气缸数的范围内恶意磁盘。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2010233094A Communication apparatus for railroad car 审中-公开
标题翻译：铁路车辆通讯装置
公开(公告)号：JP2010233094A
公开(公告)日：2010-10-14
申请号：JP2009080173
申请日：2009-03-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIKURA HIDEJI , WATANABE SHIZUYA , ISHII TATSUE , IKEBA MASAYUKI , HANADA SHINICHI , HATAKEYAMA HIROSHI
IPC分类号： H04B3/10 , B60L3/00
CPC分类号： Y02T90/16
摘要： PROBLEM TO BE SOLVED: To achieve excellent communication on transmission lines with different losses between various cars by using IEEE 802.3 standards in a communication system for railroad cars.
SOLUTION: The communication apparatus performs LAN communication between a central unit provided in one of a plurality of railroad cars connected together and each of terminal devices provided in a plurality of other railroad cars. A gain of a communication signal to be transmitted from one apparatus to the other apparatus is adjusted and a reference signal for detecting a transmission line loss is superimposed on the communication signal. At a receiving side, a level of the received reference signal is then detected and on the basis of the reference signal level, the gain of the communication signal is controlled. Even when terminal devices different in distance of the transmission line are connected, the gain of the communication signal can be determined while taking into account influences of the transmission line loss, thereby obtaining a stable communication system.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过在铁路车辆的通信系统中使用IEEE 802.3标准，在各种车辆之间实现具有不同损耗的传输线路上的良好通信。解决方案：通信设备在连接在一起的多个铁路车厢中的中央单元和设置在多个其他铁路车辆中的每个终端设备之间进行LAN通信。调整从一个装置发送到另一个装置的通信信号的增益，并且将用于检测传输线损耗的参考信号叠加在通信信号上。在接收侧，接收到的参考信号的电平被检测，并且基于参考信号电平，控制通信信号的增益。即使连接了传输线路距离不同的终端设备，也可以考虑传输线损耗的影响来确定通信信号的增益，从而获得稳定的通信系统。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JPH09106383A BUS SWITCHING DEVICE 失效
公开(公告)号：JPH09106383A
公开(公告)日：1997-04-22
申请号：JP26384895
申请日：1995-10-12
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： WATABIKI MITSUHIRO , MASUI KOJI , ISHIKURA HIDEJI , SUZUKI MASAHIRO
IPC分类号： G06F13/10 , G06F13/36
摘要： PROBLEM TO BE SOLVED: To shorten bus free standby time. SOLUTION: Initiators A and B and targets A and B are connected through an SCSI cable to a bus switching device 10 and a bus is connected by switching circuits (1)12-(4)15 while monitoring and controlling bus possession and selection/ reselection from the respective initiators and targets by a bus switching control part 11. While the target A or B operates inputting/outputting with the other initiator, an input/output instruction is received from the initiator and stored by a target operating circuit and when the target completes the input/output operation, the stored input/output instruction is transferred to the target. The input/output instruction is held until the target completes that input/output instruction. When time-out is detected concerning the input/output operation, reset is issued to that target and afterwards, the stored input/output instruction is transferred to the target again.

4. 发明专利

JPH0895901A METHOD AND DEVICE FOR SWITCHING BUS 失效
公开(公告)号：JPH0895901A
公开(公告)日：1996-04-12
申请号：JP22634194
申请日：1994-09-21
申请人： HITACHI LTD
发明人： CHIYOUSOKABE YOSHIHIRO , MASUI KOJI , ISHIKURA HIDEJI
IPC分类号： G06F13/36
摘要： PURPOSE: To provide a method and device for switching bus with which input/ output controllers more than a decided number of identifiers can be connected by an SCSI bus protocol. CONSTITUTION: Input/output controllers 21-2n and input/output devices 31-37 are individually connected to a bus switching device 10 by bus cables 200 and 300. A port controller 60 of the bus switching device 10 monitors the bus possessing/device selecting operations of devices connected to port circuits 41-4n and 51-57 corresponding to signals 70 and 71, manipulates the bus signals corresponding to signals 80 and 81, controls the connection/disconnection of bus signals corresponding to signals 90 and 91 and monitors the state change of a bus from an internal bus 100.

5. 发明专利

JP2000259586A METHOD FOR CONTROLLING CONFIGURATION OF MULTIPROCESSOR SYSTEM 失效
公开(公告)号：JP2000259586A
公开(公告)日：2000-09-22
申请号：JP5972599
申请日：1999-03-08
申请人： HITACHI LTD
发明人： TAKEWA HIDEHITO , OGURA MAKOTO , MATSUDA KOJI , ISHIKURA HIDEJI , KUROSAWA KENICHI
IPC分类号： G06F15/177
摘要： PROBLEM TO BE SOLVED: To control the configuration of a system consisting of plural processors and also to shorten the control processing time of the system configuration by providing a management table to which the processors can have accesses with no control required for the configuration of a main memory. SOLUTION: A system LSI 108 includes a management table 126, and the processors 100-103 access the table 126 via the signal lines 104-107. The table 126 consists of a row, a configuration control area and a flag. The flag value of '0' shows that the configuration control processing is not executed yet, and the flag value of '1' shows that the constitution control processing is already executed or being executed. When a power supply is turned on, the processors 100-103 execute the constitution control programs stored in a rise memory 111. Thus, a system can carry out the parallel processes by means of the table 126 even when a main memory 112 undergoes no configuration control and is unusable since the table 126 is constructed in the LSI 108 and not in the memory 112.

6. 发明专利

JPH09179836A MULTIPLIED COMPUTER AND ITS FAULT DETECTION PROCESSING METHOD 失效
公开(公告)号：JPH09179836A
公开(公告)日：1997-07-11
申请号：JP33377395
申请日：1995-12-21
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： OBARA KATSUHIRO , MIYAZAKI YOSHIHIRO , ISHIKURA HIDEJI
IPC分类号： G06F11/18 , G06F11/20 , G06F15/16
摘要： PROBLEM TO BE SOLVED: To carry on a process even when it can not be demarcated which processing unit is abnormal by conventional technology. SOLUTION: Memory controllers 330A and 330B monitor the consistency of data among processing units in their systems 310 (31-A-1 and 310A-2, and 310B-1 and 310B-2). Further, an address detecting circuit 350A monitors addresses outputted by the processing units 310 to judge whether or not the processing units 310 are in exceptional process states. In case of data inconsistency, interface controllers 340 (340A and 340B) disconnect the system. Even when an exceptional process state is entered although the data are consistent, the system is also disconnected. The disconnection, however, is made after collating circuits 360A and 350B confirm the state of the other system. A system which takes over the process is made to perform a self-diagnosing process.

7. 发明专利

JPH06274305A SCREEN DISPLAY DEVICE AND ITS CONTROL METHOD 失效
公开(公告)号：JPH06274305A
公开(公告)日：1994-09-30
申请号：JP5839293
申请日：1993-03-18
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： ISHIKURA HIDEJI , MORIOKA TAKAYUKI , NISHIKAWA ATSUHIKO , TAKAHASHI YOSHIYO , SUGANO NORITO
IPC分类号： G06F3/048 , G06F3/033 , G06F3/14 , G06F3/153 , G09G5/08 , G09G5/14
摘要： PURPOSE:To prevent a cursor from being missed even if display devices are detached or the sizes of the display devices differ by displaying an area corresponding to the other display screen on one display screen at the time of moving the cursor on plural display screens. CONSTITUTION:The cursor is displayed on a display device 16. The cursor is moved by using a mouse 11, and it is moved to the icon display area corresponding to a display device 17. When the cursor moves to the position of the icon display area, a system is switched to the icon display area corresponding to the display device 16 in the display device 17 so as to display data. A character and the cursor, which are displayed in the icon display area, are overlapped and displayed, and the character which is not hidden by the cursor is displayed as it is. Thus, it can be grasped to which display device the cursor moves or from which display device the cursor moves.

8. 发明专利

JP2000276894A ROM WRITER 失效
公开(公告)号：JP2000276894A
公开(公告)日：2000-10-06
申请号：JP7916399
申请日：1999-03-24
申请人： HITACHI LTD
发明人： OGURA MAKOTO , KUROSAWA KENICHI , TAKEWA HIDEHITO , ISHIKURA HIDEJI , MATSUDA KOJI
IPC分类号： G11C17/00
摘要： PROBLEM TO BE SOLVED: To write serial numbers differing for each PROM, by comparing addresses presented by storage elements storing them with those of common data, writing the common data in PROMs when both addresses are not matched with each other, and simultaneously writing the serial numbers differing for each PROM in all the PROMs connected with PROM connecting parts when matched with each other. SOLUTION: A control part 1 sets addresses, where serial numbers inputted from an input part 3 are written, in a serial number write address storage part 13, and sets the serial numbers in serial number storage parts 14A-14C sequentially from the initial value. When PROMs are connected with PROM connecting parts 10A-10B, the control part 1 sequentially reads data from a common data storage part 4, and outputs the data to be written in the PROMs and the addresses to a data output part 5 and an address output part 6. Based on the comparison result by a comparator 7, a selecting part 8 outputs the common data outputted by the data output part 5 or the serial numbers stored in the serial number storage parts 14A-14C.

9. 发明专利

JPH0844496A INFORMATION PROCESSOR 失效
公开(公告)号：JPH0844496A
公开(公告)日：1996-02-16
申请号：JP17642994
申请日：1994-07-28
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： TAKAHASHI YOSHIYO , NISHIKAWA ATSUHIKO , KOBAYASHI HIROSHI , ISHIKURA HIDEJI , SUZUKI KAZUYOSHI , SUGANO NORITO
IPC分类号： G06F3/14 , G06F3/033 , G06F3/038 , G06F3/048
摘要： PURPOSE:To provide an information processor having a screen to be easily observed and high operability in respect to an information processor connected to plural input devices and capable of displaying plural cursors. CONSTITUTION:A display 104 has a cursor display synthesizer 101, a control device 100 has a cursor management table 20, and when there is no input from an input device, cursors are erased. Input devices such as a joy stick 3 and a tablet 4 are provided with a function similar to that of a mouse. Thereby when there is no input from the input device, cursors are erased, and since the input devices are provided also with a pointing device function as device function operation, a screen can easily be observed and operability in case of window selection can be improved.

10. 发明专利

JPH06214900A BUS SWITCHING DEVICE 失效
公开(公告)号：JPH06214900A
公开(公告)日：1994-08-05
申请号：JP780193
申请日：1993-01-20
申请人： HITACHI LTD , HITACHI PROCESS COMPUTER ENG
发明人： ISHIKURA HIDEJI , MORIOKA TAKAYUKI , MASUI KOJI , SUZUKI KUNIO
IPC分类号： G06F11/20 , G06F13/00 , G06F13/36
摘要： PURPOSE:To prevent another device from being affected in the case of exchanging a device of which bus is abnormal by providing a gate control circuit for monitoring the states of respective buses and controlling the disconnection of any bus showing the abnormal state. CONSTITUTION:When input/output controllers A1 and B1 desives to execute the READ/WRITE of data with a magnetic disk, the acquisition of the bus is tried by respective arbitrations when the bus can be acquired, either a magnetic disk A3 or a magnetic disk B4 is selected by selection, and a READ/ WRITE command is sent by information communication. Although the bus switching device is controlled by a gate control circuit 15, the state of an SCSI bus signal of each device to be changed is monitored by a signal 12 and when the device with the bus signal abnormal is detected, that device is disconnected by a signal 14. Therefore, the other device to start the input/output operation is not affected.

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