Fujitsu Corporation

Hiroaki Abe

Itaru Fukao

Yasuhito Funyu

Yuji Kubota

Yuki Kajitani

Takeshi Ohba

Tomohiro Nakamura

Toshimasa Arai

Kazuya Jimbo

Yasuhiro Yamaguchi

Asuro Harada

Yasuhiko Arima

Yoshio Nishiyama

Naoki Hayashi

Takahiro Miyazaki

Masayuki Watabe

Yasuko Onodera

Hisato Kawano

Fumiyoshi Tomohara

Yoshinori Arihara

Ta-Wei Chang

Naoshi Nakagawa

Takeo Konno

Harumi Taneda

Yuriko Suzuki

Hideyuki Chiba

Takeshi Aihana

Kazunori Nomura

Satoshi Nagai

A VPN service management system enabling a customer to rapidly and easily change a VPN service condition, that is, a VPN service management system for managing a VPN service for a communication network provided with a customer network and a provider network and having a VPN service manager for managing a VPN service for a provider network and a VPN service agent for managing a VPN service for a customer network. The VPN service manager changes the VPN service condition in real time in accordance with an operation status of the customer network in cooperation with the VPN service agent.

VPN service management system having a VPN service manager for a provider network and a VPN service agent for a customer network and enabling rapid change of VPN service conditions

In a network employing code division multiplex access, a distortion compensation amplifying apparatus is provided which is capable of making quick response to carry out the distortion compensation with high accuracy even if the signal power to be inputted thereto varies rapidly. In this distortion compensation amplifying apparatus, the renewal of a distortion compensation coefficient in a renewing unit is complemented on the basis of a result of amplification in an amplifier with respect to a signal code-division-multiplexed in a pseudo-signal multiplexing unit.

Distortion compensation amplifying apparatus and base station

A distortion compensator updating and selecting a distortion compensation coefficient applied to a digital transmission signal so as to reduce the difference between the digital transmission signal and a digital feedback signal is disclosed. The distortion compensator includes a control part that controls the level of an input signal to an analog-to-digital conversion part outputting the digital feedback signal in accordance with the magnitude of the amplitude of the digital transmission signal.

Distortion compensator

A power correction value generating unit determines a power correction value for minimizing an error, from a reference output power value of a carrier multiplexed signal, generating due to peak power suppression under a carrier setting based on the carrier setting relating to either one or both of the number of carrier signals and frequency arrangement, and peak suppression setting. An output power error correcting unit corrects a signal gain before or after the carrier signals are multiplexed, using the power correction value obtained by the power correction value generating unit. In an apparatus performing peak suppression according to an input limitation power of the power amplifier, it is possible to always obtain a desirable transmission (output) power even when the number of carriers or carrier frequency arrangement varies.

Output power error absorbing circuit and multi-carrier transmitter having the same

A system for controlling topology views for operators in network management includes a data-storage unit which stores data of a base topology view, a security-management unit which controls access-authorization information with respect to each of the operators, the access-authorization information for a given operator defining network elements accessible by the given operator, and a topology-view-management unit which generates data of a dependent topology view by making a partial copy of the data of the base topology view only with respect to the network elements accessible by the given operator, thereby providing the dependent topology view to be presented to the given operator.

Control of topology views in network management

The present invention relates to a method of rerouting a PVC route on an ATM network by previously defining an alternate route for the PVC route and by switching the PVC route to a previously defined alternate route when a fault occurs in a network element forming the PVC route. Further, the present invention relates to a network management system connected to a plurality of network elements, and includes an ATM network resource managing unit for managing resources included in the ATM network; a PVC connection managing unit connected to the element data collecting unit through the LAN or WAN for managing situation of connection of the PVC route; a PVC route searching unit for searching the PVC route; a fault event analyzing unit for receiving a fault from the fault notifying unit through the communication network when the fault occurs at any one of network elements, and analyzing the fault; an alternate route defining unit for previously defining the alternate route for the PVC; and an alternate route processing unit for switching a faulty route to the alternate route defined by the alternate route defining unit when the fault occurs at any one of network elements.

Rerouting method for a PVC route on an ATM network and a network management system using the rerouting method

A path defining/changing/deleting section sets in advance the definition of the setup of a PVC connection in a PVC connection object management table as a PVC connection object. Each PVC connection object has an attribute indicating an active or inactive state. When a request is made by a reservation controlling section for activating or deactivating an object PVC connection, a PVC active/inactive state controlling section can immediately read from the PVC connection object management table a PVC connection object indicating the definition of the setup of the object PVC connection, to send commands based on the definition to each of network elements (NE) which comprise an information communications network.

Permanent virtual connection reservation control system

A network management device for managing a plurality of network elements has a network element management data acquisition unit for acquiring, in stages, various management data possessed by the network elements when a session with a network element is resumed and when the network management device itself is started up, a rule management table for storing a dependence relationship between an operation and management data necessary to execute the operation, a feasible operation decision processing unit which, when an operation has been specified, refers to the dependence relationship to determine whether management data necessary to execute the operation has been acquired. If the necessary management data has been acquired, a network management execution unit executes network management conforming to the operation.

Network management device

An information-processing apparatus for document editing. The apparatus has multiple editors for editing documents according to the individual document type. An editing operation interlocking work identifier analyzes the meaning of a work corresponding to a give editing operation on a document. Editing operations for the documents, and information about associated works, are defined in an editing operation interlocking work correlating table. The associated work is done in parallel with, or later than, an editing operation for the document. The editing operation interlocking work identifier refers to the correlating table. A process starting controller refers to an interlocking work starting process correlating table in which information about the associated works and starting processes are defined.

Information-processing apparatus having document-editing function

A device for aiding a software designing process in which software is divided into a plurality of tasks includes a dynamic-specification-information editing unit for defining dynamic behaviors between the tasks to create a dynamic specification, a static-specification-information editing unit for defining static configurations between the tasks to create a static specification, and an editing-unit-coordination controlling unit for coordinating operations of the dynamic-specification-information editing unit and the static-specification-information editing unit.

Device and method for aiding designing process of software development

During a software designing operation, a designer accesses a level prescribing unit through an interaction managing control unit. The level prescribing unit provides the guidance to specification information and design parts, etc. at a desired design level. If the designer selects and inputs specification information or design parts, the design editor corresponding to the design specification information in a design editor unit is activated, so that the designer is guided and aided through a display to produce a desired software. At this time, the information about the state of the editing operation 'completed' or 'not completed' is stored with the directory. The designed document satisfying a specific condition, for example, a document determined to be 'design completed', is stored as a data base by a design data base storing unit. To update the information stored in the design data base, a design information inconsistency correction support unit presents the designer with the part of the information affected by the update, thereby supporting the correction.

Software design support apparatus

A machine translation apparatus for automatically generating a classified-by-field dictionary to be used for translating a pseudo code program into a program in a plurality of other languages based on a design document described in notation data used to describe a design document which produces a pseudo code program in which names are defined by at least two languages; and for automatically translating a pseudo code program described in a language into a pseudo code program described in another language.

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Kawasaki, Japan

Hiroaki Abe