Abstract: A waveguide converter includes a waveguide including a hollow section through which a signal is transmitted and a first opening formed on a cross section of the hollow section in a direction orthogonal to a transmission direction of the signal, and a circuit board including on a same surface a signal line, a conductor patch connected to the signal line, and a second opening surrounding the conductor patch. The waveguide is fixed onto the circuit board. The first opening surrounds the second opening. The conductor patch includes a rectangular section which has short sides in parallel with short sides of the first opening, and has a first long side and a second long side connected to the signal line in parallel with long sides of the first opening, and protruding portions which are provided so as to touch the short sides near both ends of the second long side, respectively.

Abstract: When a problem occurs in a computer system, the following processing is performed. That is, a troubleshooting procedure that includes, at least, operation content and input request for system information, presented to an operator, and in which command to acquire system information related to the input request from the information source of the system information are assigned to the input request, is referenced. Furthermore, in accordance with the command, system information is collected from an information source where system information exists. Then, after those input request for system information have been removed from the troubleshooting procedure, the resultant troubleshooting procedure is presented to the operator. Thus, the workload of the operator in the troubleshooting operation can be significantly reduced, and the time until the operation is completed is shortened, making rapid troubleshooting possible.

Abstract: A recording medium stores a program which causes a computer to execute a process for responding to failure of a management subject apparatus, based on incident information. The program causes the computer to execute a management procedure. The procedure manages steps of the response to the failure with the incident information. A response knowledge acquisition procedure referring to failure response information in which is described response knowledge corresponding to each step of the response to the failure, and acquires response knowledge for the failure in accordance with the step of the response to the failure managed by the failure response step management procedure with the incident information. A response knowledge process execution procedure executes a process in accordance with the response knowledge for the failure acquired by the response knowledge acquisition procedure.

Abstract: The communication availability information between a plurality of transmitters and a plurality of destinations before the communication state between a transmitter and a destinations in a communication network changes from available to unavailable is compared, layer by layer from an upper layer toward a lower layer, with the communication availability information after change, and destinations in paths where the communication state has changed from available to unavailable are grouped. Thus, the communication network is divided into a plurality of affected ranges and an interface of a device located at the border between the affected ranges is deduced as a fault occurrence point.

Abstract: A system management apparatus includes a countermeasure-result evaluating unit that evaluates whether a countermeasure taken by a countermeasure taking unit has been solved, and that stores the result of evaluation in a countermeasure database to reflect the result to a criterion for selecting the countermeasure by a countermeasure determining unit next time.

Abstract: Based on past failure sign appearance situations and past failure occurrence situations, failure occurrence probability which varies with a time elapse after failure sign appearance is calculated, and also, based on maintenance cost information of an operations management objective system, a short-term troubleshooting cost required for responding to a failure associated with the failure sign appeared in the system is calculated. Furthermore, based on the past failure sign appearance situations and the past failure occurrence situations, and also, the maintenance cost information and the failure occurrence probability, a short-term first preventive maintenance cost required for preventive maintenance of the failure associated with the failure sign, and also, the failure occurrence probability and a short-term second preventive maintenance cost for when preventive maintenance performance is postponed until next failure sign appearance, are calculated.

Abstract: When a problem occurs in a computer system, the following processing is performed. That is, a troubleshooting procedure that includes, at least, operation content and input request for system information, presented to an operator, and in which command to acquire system information related to the input request from the information source of the system information are assigned to the input request, is referenced. Furthermore, in accordance with the command, system information is collected from an information source where system information exists. Then, after those input request for system information have been removed from the troubleshooting procedure, the resultant troubleshooting procedure is presented to the operator. Thus, the workload of the operator in the troubleshooting operation can be significantly reduced, and the time until the operation is completed is shortened, making rapid troubleshooting possible.

Abstract: An information obtaining assistance apparatus including: a storage to store system environment information on an information processing system and obtaining method information on one or more methods of obtaining information; and a processor to create presentation information that is based on the system environment information and the obtaining method information and to present a method of obtaining target information of the information processing system.

Abstract: According to this invention, it is possible to display the overall configuration of a network and, at the same time, an important part of the network in detail according to the objective of monitoring so as to be able to grasp/monitor the important part of the network in detail, while globally grasping/monitoring the network configuration, for the purpose of an efficient monitoring operation on the network configuration. A network configuration management apparatus 100 for managing the configuration of a network 101 formed by connecting a plurality of network devices comprises a topology information acquiring section 11 for acquiring topology information on each of the network devices and a degree of importance determining section 12 for computationally determining the degree of importance of each of the network devices, using the topology information acquired by the topology information acquiring section 11.

Abstract: A recording medium stores a program which causes a computer to execute a process for responding to failure of a management subject apparatus, based on incident information. The program causes the computer to execute a management procedure. The procedure manages steps of the response to the failure with the incident information. A response knowledge acquisition procedure referring to failure response information in which is described response knowledge corresponding to each step of the response to the failure, and acquires response knowledge for the failure in accordance with the step of the response to the failure managed by the failure response step management procedure with the incident information. A response knowledge process execution procedure executes a process in accordance with the response knowledge for the failure acquired by the response knowledge acquisition procedure.

Abstract: A system management apparatus includes a countermeasure-result evaluating unit that evaluates whether a countermeasure taken by a countermeasure taking unit has been solved, and that stores the result of evaluation in a countermeasure database to reflect the result to a criterion for selecting the countermeasure by a countermeasure determining unit next time.

Abstract: A network-configuration management apparatus manages a configuration of a network in which a plurality of network devices including a plurality of servers is connected. An upper-layer-specification receiving unit receives an upper layer specification from a user. A grouping unit groups the servers based on the received upper layer specification. A configuration display unit that displays the configuration of the network based on the grouping of the servers.

Abstract: The present invention provides a network configuration change evaluation program, a network configuration change evaluation device, and a network configuration change evaluation method which can evaluate influence due to configuration change of a network.

Abstract: The communication availability information between a plurality of transmitters and a plurality of destinations before the communication state between a transmitter and a destinations in a communication network changes from available to unavailable is compared, layer by layer from an upper layer toward a lower layer, with the communication availability information after change, and destinations in paths where the communication state has changed from available to unavailable are grouped. Thus, the communication network is divided into a plurality of affected ranges and an interface of a device located at the border between the affected ranges is deduced as a fault occurrence point.

Abstract: According to this invention, it is possible to display the overall configuration of a network and, at the same time, an important part of the network in detail according to the objective of monitoring so as to be able to grasp/monitor the important part of the network in detail, while globally grasping/monitoring the network configuration, for the purpose of an efficient monitoring operation on the network configuration. A network configuration management apparatus 100 for managing the configuration of a network 101 formed by connecting a plurality of network devices comprises a topology information acquiring section 11 for acquiring topology information on each of the network devices and a degree of importance determining section 12 for computationally determining the degree of importance of each of the network devices, using the topology information acquired by the topology information acquiring section 11.

Abstract: Connections included in the topology of a lower-order layer of a plurality of layers are grouped according to device setting information of a plurality of devices composing a communication network with a communication function having a hierarchical structure composed of the plurality of layers, and an information reach range in a higher-order layer is generated. Then, the topology of the higher-order layer is generated based on the obtained information reach range.

Abstract: An amplifier apparatus including a first dividing circuit disposed at the input side of an amplifier, for dividing an input signal into a primary signal to be amplified by the amplifier and an auxiliary signal for distortion detection, a distortion compensating signal generating circuit for generating a distortion compensating signal, based on the auxiliary signal and the output of the amplifier, to compensate a distortion component contained in the output of the primary amplifier and inputting the generated signal into the amplifier, and a primary signal combining circuit for combining the primary signal obtained by the first dividing circuit 1 with the distortion compensating signal. The result is that even using an auxiliary amplifier whose gain is small or without using such auxiliary amplifier in a feedback system, the distortion component contained in the output of the amplifier can be effectively compensated.

Abstract: An amplifier apparatus including a first dividing circuit disposed at the input side of an amplifier, for dividing an input signal into a primary signal to be amplified by the amplifier and an auxiliary signal for distortion detection, a distortion compensating signal generating circuit for generating a distortion compensating signal, based on the auxiliary signal and the output of the amplifier, to compensate a distortion component contained in the output of the primary amplifier and inputting the generated signal into the amplifier, and a primary signal combining circuit for combining the primary signal obtained by the first dividing circuit 1 with the distortion compensating signal. The result is that even using an auxiliary amplifier whose gain is small or without using such auxiliary amplifier in a feedback system, the distortion component contained in the output of the amplifier can be effectively compensated.