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91. 发明专利

JPH04220745A BUS ERROR DETECTING CIRCUIT 失效
公开(公告)号：JPH04220745A
公开(公告)日：1992-08-11
申请号：JP40473590
申请日：1990-12-21
申请人： NIPPON DENKI FIELD SERVICE
发明人： MASUDA YOSHIRO
IPC分类号： G06F11/10 , G06F13/00
摘要： PURPOSE:To prevent a bus error due to transmission from a device without bus using right by checking for the bus using right as well as for a parity error and permitting data transmission to the bus only when both checks are satisfied. CONSTITUTION:An AND circuit 12 outputting a selective signal 18 when both the result of a register 13 holding information 19 indicating the presence or absence of the bus using right transmitted from an input/output controller and the parity result of a parity check circuit 9 for the data transmitted from a data transmission circuit 8 are positive, is provided. A data signal 14 from the data transmission circuit 8 is temporarily held in a register 11, and the data signal is transmitted to a bus 1 only when the selective signal 18 permits the data transmission to a bus 1.

92. 发明专利

JPH04170135A COMMUNICATION CONTROLLER AND ITS METHOD 失效
公开(公告)号：JPH04170135A
公开(公告)日：1992-06-17
申请号：JP29594090
申请日：1990-11-01
申请人： NIPPON DENKI FIELD SERVICE
发明人： HAYASHI HIROSHI
IPC分类号： G06F13/00 , H04B17/00 , H04L29/14
摘要： PURPOSE:To locate a cause of a fault immediately on the occurrence of the fault by providing a data transmission reception means and a transmission reception monitor storage means to the controller. CONSTITUTION:The controller is provided with a data transmission reception control section 3, which receives a 1st data sent from an opposite station through a communication line, transfers the data to a host computer 5 and sends a 2nd data sent from the host computer 5 to the opposite station through the said communication line. Moreover, the 1st data sent from the opposite station through the communication line is received and stored in a memory, the data is compared and monitored with a 2nd data sent from the host computer 5, and when a fault of a line takes place. the 1st data is given to the host computer 4, in which a cause to the fault is implemented, Moreover, the controller is provided with a transmission reception data monitor storage section 2, which retrieves a data stored in the memory for restoration processing when an error takes place in the data the transmission reception control means 3. Thus, the cause to the fault is immediately retrieved based on the data on the occurrence of the fault to be stored.

93. 发明专利

JPH04168523A SOFTWARE TOOL FOR CHANGING MAGNETIC DISK DEVICE 失效
公开(公告)号：JPH04168523A
公开(公告)日：1992-06-16
申请号：JP29593790
申请日：1990-11-01
申请人： NIPPON DENKI FIELD SERVICE
发明人： KASAMATSU MASAO , SATO SHOJI , FUJISUE HIROO , YURINO TAKASHI
IPC分类号： G06F3/06
摘要： PURPOSE:To decrease the operation miss by generating a program for leading a miss preventing countermeasure to a human error to file operation utility and displaying a menu of the whole work immediately after a rise of a work OS. CONSTITUTION:A software tool generates a program which belongs to an application program, and introduces a miss preventing countermeasure to a human error in plural file operation utility. In such a state, immediately after a rise of a magnetic disk device change work OS, a menu of every whole work of the tool is displayed on a display device. Subsequently, in accordance with the menu, saving and a change of magnetic disk data are executed, and normalness of recovery data in the changed device is confirmed. In such a way, a difference of technical levels of workers becomes small and an operation miss decreases.

94. 发明专利

JPH04168522A DUAL EXTERNAL STORAGE DEVICE PROCESSING SYSTEM 失效
公开(公告)号：JPH04168522A
公开(公告)日：1992-06-16
申请号：JP29613490
申请日：1990-10-31
申请人： NIPPON DENKI FIELD SERVICE
发明人： HASHIMOTO YUKIO , HASHIMOTO KOUZABUROU
IPC分类号： G06F12/16 , G06F3/06 , G06F11/16
摘要： PURPOSE:To obtain the dual external storage device having high reliability by verifying a fact that a saved state of data is normal at every prescribed period with respect to a second storage medium, and executing a report to the outside immediately when abnormality is detected. CONSTITUTION:A data processing part 11 executes write and read-out processings to a first storage medium 2 and executes only a write processing to a second storage medium. A timer part 12 supplies an actuating signal to a competition avoiding part 13 in a prescribed period and at a timing which is not in the course of write operation to a medium 3, a read-out instructing part 14 reads out data of the medium 3 and stores it in a status storage part 16, and a result of read-out is decided by an error deciding part 17. As a result, when a read-out error is contained, it is informed to an error informing part 18, and the informing part 18 informs a fact that read-out abnormality is generated in the medium 3 to an external device. In such a way, a dual external storage device having high reliability can be obtained.

95. 发明专利

JPH04153727A MAGNETIC DISK SYSTEM 失效
公开(公告)号：JPH04153727A
公开(公告)日：1992-05-27
申请号：JP27973390
申请日：1990-10-18
申请人： NIPPON DENKI FIELD SERVICE
发明人： TSUBOTA MICHIHIKO
IPC分类号： G06F3/06 , G11B19/02 , G11B20/10
摘要： PURPOSE:To decrease the amount of data which can not be used owing to the trouble of a head disk assembly by handling a head disk assembly which is recognized by a central processor as a virtual disk assembly and composing this of (m) head disk assemblies. CONSTITUTION:A magnetic disk controller 3 is equipped with an address converting circuit 5 for developing a head disk assembly number, a cylinder number, and a head number sent from the central processor 1 in a head disk assembly Dij and a data transfer circuit 7 which intervenues for data transmis sion and reception between a magnetic disk device 4 and the central processor 1. Then a normal head disk assembly corresponds to a virtual head disk assem bly LDj, which is divided into (m) head disk assemblies Dij. Here, (m) is obtained by dividing the total number of the tracks of m=LDj by the total number of the tracks of the Dij. Consequently, the amount of data which can not be used owing to the trouble of a head disk assembly is one (m)th as large as the amount of data of the virtual disk head assembly.

96. 发明专利

JPH04133163A REQUEST ISSUE HISTORY STORAGE SYSTEM 失效
公开(公告)号：JPH04133163A
公开(公告)日：1992-05-07
申请号：JP25565790
申请日：1990-09-26
申请人： NEC CORP , NIPPON DENKI FIELD SERVICE
发明人： IWATA ATSUSHI , SUZUKI JUNICHI
IPC分类号： G06F11/34 , G06F15/16 , G06F15/177
摘要： PURPOSE:To improve the efficiency of the system by providing an inspecting means for checking whether a request issued by a processing processor is a request of an inter-processor communication in a system controller, and storing successively inter-processor communication information. CONSTITUTION:A system controller 1 controls an access to a main storage device 2 from arithmetic processors 3 - 5 and an input/output processor 6, and a communication between each processor. Requests from the processors 3 - 6 are sent to a request decoding unit 101 and comparators 120 - 123 through a register 11. To a register 17, discrimination data of the request is set. The comparators 120 - 123 compare the contents of the register 11 and the register 17. When the request is an inter-processor communication, the contents of parts 111 - 113 of the register 11, that is, communication request information is written successively in a storage circuit 16.

97. 发明专利

JPH03269607A MAINTENANCE DIAGNOSTIC DEVICE FOR INFORMATION PROCESSOR 失效
公开(公告)号：JPH03269607A
公开(公告)日：1991-12-02
申请号：JP7021790
申请日：1990-03-19
申请人： NEC CORP , NIPPON DENKI FIELD SERVICE
发明人： KATO MOTOYUKI , TOGASHI YUTAKA
IPC分类号： G06F1/00 , G06F11/34
摘要： PURPOSE:To attain the automatic inspection of a rental meter every month at the fixed time on a fixed day by adding a function to a maintenance diagnostic device to control the date of inspection via a clock and sending the integrated value of the rental meter to a maintenance center set in a remote place. CONSTITUTION:A date setting means 12 is manually started and sets monthly the fixed time on a fixed day designated by an operator via a clock 13. The clock 13 always counts the time and the days and sends a reading instruction of the integrated value to a rental meter reading means 14 on the date of each month designated by the means 12. The means 14 reads out the integrated value of a rental meter 3 by the integrated value reading instruction given from the clock 13 and then sends this read value to a communication control means 11. The means 11 receives the integrated value and sends this value to a maintenance center 5 in a communicatable state with the center 5. Hereafter the communicatable state ends to the center 5. Thus the meter 3 can be inspected every month at the fixed time on a fixed day.

98. 发明专利

JPH03157734A LOGIC CIRCUIT MANAGING DEVICE 失效
公开(公告)号：JPH03157734A
公开(公告)日：1991-07-05
申请号：JP29806989
申请日：1989-11-15
申请人： NIPPON DENKI FIELD SERVICE
发明人： FUCHIGAMI MASAHIRO
IPC分类号： G06F11/00
摘要： PURPOSE:To prevent a secondary fault due to the replacing work of a parts from occurring when a fault occurs by providing a means to check the validity of the revision of the parts when a power source is applied and a command is executed. CONSTITUTION:When revision-up due to modification construction, etc., is performed, short-circuiting are performed with wrapping posts 1-10 according to a prescribed correspondence table. Data is connected to flip-flops 11-15 by fall, and is inputted unconditionally with a supplied clock. When the power source is applied and the command is executed, the data is read with a shift bus, and is transferred to a diagnostic processor 20 with a diagnostic interface 22, and the revision shown in the parts in which logic circuits 16-19 exist is inputted, thereby, the check result of the data can be displayed. In such a way, since the revision of the parts can be confirmed, it is possible to prevent the secondary fault due to the exchanging work of the part from occurring when the fault occurs.

99. 发明专利

JPH03147162A SYSTEM FOR AUTOMATIC SWITCHING TO ALTERNATIVE MEMORY 失效
公开(公告)号：JPH03147162A
公开(公告)日：1991-06-24
申请号：JP28625889
申请日：1989-11-02
申请人： NIPPON DENKI FIELD SERVICE
发明人： SUGIYAMA YASUAKI
IPC分类号： G06F12/16
摘要： PURPOSE:To eliminate necessity for the investigation of a fault cause, which is executed each time memory error is generated, by providing an alternative memory and an automatic switching circuit and automatically executing switching to the alternative memory for the unit of an address when the error is generated in a memory. CONSTITUTION:When memory is accessed, an address signal (a) is compared with a defective address, which is registered to all defective address storage parts 1, by a defective address coincidence detection circuit part 4. When the coincidence is detected, namely, when the error is generated, a defective address memory, for example, a write gate (f) of a defective address memory 11a is opened by using an output signal (e) of a data check circuit 21 and the output of an address decoder 15 is separated by a NOR gate circuit 19 of an alternative memory switching circuit part 5. Then, a signal sent out from the defective address coincidence detection circuit part 4 is inputted to an alternative memory 12b and switching to the memory 12b is executed. Thus, it is not necessary to execute the investigation of the fault cause which is executed each time the memory error is generated.

100. 发明专利

JPH03147130A OPERATING SYSTEM CORRECTING SYSTEM 失效
公开(公告)号：JPH03147130A
公开(公告)日：1991-06-24
申请号：JP28626189
申请日：1989-11-02
申请人： NIPPON DENKI FIELD SERVICE
发明人： NAKAMURA KENICHI
IPC分类号： G06F11/28 , G06F9/06
摘要： PURPOSE:To enhance the operation rate of a computer system by constituting the system so that a defective part of an operating system can be corrected without interrupting the computer system. CONSTITUTION:An operating system actuates a correction program 6, an execution segment 5 is read successively into a main memory 4, compared with a correction segment name of the correction program 6 immediately before the execution, and when they are equal to each other, the execution control is shifted to the correction program 6, and a read-in defective segment is corrected by the correction data of the correction program 6. In this case, 'only execution possible' of a segment attribute is changed to 'writable' and corrected by the correction data, and after the correction, the segment attribute is returned to 'only execution possible' again. Subsequently, the execution control is returned to the corrected execution segment 5 from the correction program 6, and the operation of a regular operating system is executed. In such a manner, the operation rate of the computer system can be enhanced.

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