Fujitsu Corporation

Hiroyuki Hatta

Kenji Tanaka

Osamu Sekihata

Ryuji Hyodo

Susumu Eda

Katsumi Oomuro

Reiko Norizuki

Tetsuo Nishino

Reiko Furuya

Kazuyuki Omori

Eisuke Iwabuchi

Isamu Watanabe

Masayuki Ozawa

Mamoru Udagawa

Nobuyuki Hiratsuka

Nakaba Yuhara

Hiroshi Niimi

Kuniaki Ikematsu

Hisashi Haseda

Hirokazu Minou

Katsumi Oomura

Kazunari Tanaka

Youko Suzuki

Seiichi Mashimo

An apparatus for extracting feature information from each of a plurality of electronic documents that constitutes a group of documents, for each of a plurality of viewpoints includes an extracting unit that extracts feature information from each of the electronic documents for each of the viewpoints, a calculating unit that calculates a score for each of the viewpoints with respect to the feature information that is extracted from more than one viewpoint, and a determining unit that determines the viewpoint for the feature information that is extracted from more than one viewpoint, based on the score calculated.

Method and apparatus for extracting feature information, and computer product

An event invitation method according to this invention comprises the steps of acquiring position information of a customer registered in advance; judging whether or not information concerning an invitation to an event to a terminal of the customer based on at least a positional relationship between the customer and a site of the event; and sending information concerning the invitation to the event to the terminal of the customer if it is judged that the invitation to the event should be sent to the customer. With this method, for example, by sending event invitation information to customers who can reach the event site by the opening time or ending time of the event, collection of customers who attend the event and resale of canceled tickets can be performed efficiently.

Event invitation method and system

An image transmission system in which when each of a plurality of image signals is transformed into compressed image data compressed at an image compressing portion, the image data are assembled to cells at a cell assembly portion, and the cells from the cell assembly portion are switched at a switching portion, a band controller controls the cell assembly portion so that a band of a transmission line has a value lower than a total band required for a simultaneous transmission of each of the image data. Also, a network controller for controlling band controllers or compression rate controllers at each of communication nodes on a network is provided. Moreover, a sensor which detects a change of an event to control the band controller or the compression rate controller is provided.

Image transmission system

An ATM multiplex transmission system including AAL processing units, an ATM cross connection processing unit, and a plurality of lines connected to the same, wherein the system has test equipment formed in it, the test equipment being formed as a particular cell generating unit and a routing information setting unit in at least one of the line corresponding points which the ATM cross connection processing unit has at the portions connecting with the lines. When a routing test is performed in the system, the VPI and the VCI designating the route are given from the outside as the routing information.

ATM multiplex transmission system having test equipment

In a congestion control system for an interface between a PBX and an ATM multiplexing transmission unit connected to a network via an ATM transmission line, a congestion detecting unit detects a congested state in which the ATM transmission line is congested with traffic. A control unit inhibits a call from the PBX from being sent to the ATM transmission line via the ATM multiplexing transmission unit when the congestion detecting unit detects the congested state.

System and method for controlling interface between PBX and ATM

A video information server system which makes it possible for a party to remotely control any of a plurality of video information server apparatuses holding a plurality of types of video information different in type from each other through a communication network and thereby easily obtained desired video information, the system being provided with a video information server center including a plurality of video information server apparatuses and a center control equipment for selecting one of these apparatuses in accordance with a request from a request terminal and sending the video information of the request and the central control equipment being provided with a common management file for recording various data for converting requests from terminals compatible with all of the plurality of video information server apparatuses into requests corresponding to the individual apparatuses.

Video information server system including server center cooperating with

An ATM multiplex transmission system including an ATM adaptation layer (AAL) processing unit, an ATM cross connection processing unit having a switch and FIFO memories connected to the incoming and outgoing sides, and dummy load cell generating units which forcibly write dummy load cells in the incoming FIFO memories or outgoing FIFO memories, the writing of the dummy load cells being used to execute a load test on the FIFO memories.

A method for supervising and controlling ATM traffic, which uses idle cells transferring traffic information to manage a network, comprising steps of a first step for mapping traffic information in the information field of an idle cell and transferring said idle cell to other communication nodes, a second step for performing the operation of traffic control in accordance with the contents of said traffic information included in said idle cell on the receiving side of said other communication nodes, and a third step for assembling a new idle cell including said traffic information of received idle cell and/or new traffic information on said receiving side of communication nodes and transferring said new idle cell from said receiving side of communication nodes to other communication nodes.

Apparatus and a method for supervising and controlling ATM traffic

An apparatus for supervising and controlling ATM traffic, and which collects traffic information, including a cell detecting unit for outputting a cell detecting signal whenever detecting a user information cell flowing through an ATM switch unit, an idle cell detecting unit for outputting an idle cell detecting signal whenever detecting an idle cell flowing through an ATM switch unit, a cell counting unit for counting the cell detecting signals output from the cell detecting unit, an idle cell counting unit for counting the idle cell detecting signals output from the idle cell detecting unit, an idle cell rate detecting unit for detecting an idle cell rate from both counts output from the cell counting unit and the idle cell counting unit at regular intervals, and a control unit for performing the operation of traffic control in accordance with the idle cell rate provided from the idle cell rate detecting unit at regular intervals.

In a congestion control method adapted to a communications system having a network, a terminal and a terminal adapter which is provided between the network and the terminal and interchanges a first frame format handled by the network and a second frame format handled by the terminal, the terminal adapter receives a signal sent in the first frame format via the network and detects whether or not the signal includes congestion notification information indicating occurrence of a congestion in the communications system. The terminal adapter then sends a signal in the second frame format including first notification information to the terminal. The terminal adapter then performs a predetermined control process for recovery from the congestion when the terminal receives the signal in the second frame format.

Congestion control method, terminal adapter using the method and

In an ATM cell assembling and disassembling method for a communications network having first and second communications nodes, HDLC data is transferred from a first terminal to the first communications node via a first transmission line, the HDLC data conforming to an HDLC format. It starts to assemble, in the first communications node, at least one cell from the HDLC data when data which is contained in the HDLC data and equal to one cell has been received. Then the above at least one cell of ATM data is transferred from the first communications node to the second communications node. Disassembly is started, in the second communications node, of the above at least one cell of ATM data to thereby generate original HDLC data when a fluctuation compensation time has elapsed after a first cell of ATM data among the above-mentioned at least one cell of ATM data is received by the second communications node. The fluctuation compensation time is based on a maximum fluctuation time of a route connecting the first and second communications nodes to each other as well as a bit rate of the first transmission line. Finally, the original HDLC data is transferred to a second terminal from the second communications node via a second transmission line.

ATM cell assembling and disassembling system and method

An apparatus for setting a communication path in ATM communication, comprises: communication path control unit for indicating a communication path test before starting communication; test cell assembling unit for assembling test cells that consist of a series of cells each of which has a sequential number for detecting test cell discard and has the higher cell discard priority (CLP=1); communication path setting unit for setting up the communication path and replacing transmit idle cells with the test cells; and cell-discard detecting unit for comparing the sequential number contained in received test cells with the number of the received test cells and thereby outputting a communication path setting enable or disable control signal.

Apparatus and a method for setting a communication path

An apparatus for supervising and controlling ATM traffic, and which collects traffic information, comprises a cell detecting unit for outputting a cell detecting signal whenever detecting a user information cell flowing through an ATM switch unit, an idle cell detecting unit for outputting an idle cell detecting signal whenever detecting an idle cell flowing through an ATM switch unit, a cell counting unit for counting the cell detecting signals output from the cell detecting unit, an idle cell counting unit for counting the idle cell detecting signals output from the idle cell detecting unit, an idle cell rate detecting unit for detecting an idle cell rate from both counts output from the cell counting unit and the idle cell counting unit at regular intervals, and a control unit for performing the operation of traffic control in accordance with the idle cell rate provided from the idle cell rate detecting unit at regular intervals.

A fault notifying system notifies a fault in an asynchronous transfer mode (ATM) network to at least one data terminating equipment (DTE). The fault notifying system includes a network interface coupled to the ATM network for outputting an alarm indication signal (AIS) when a fault is generated in the ATM network. An ATM crossconnect part generates an AIS cell having a predetermined signal format in response to the AIS. An adaptation layer processing part forms ATM cells, disassembles ATM cells and outputs a data circuit-terminating equipment not ready (DNR) in response to the AIS cell. A terminal interface coupled to the DTE notifies the fault in the ATM network to the DTE in response to the DNR. The AIS cell has a cell format identical to an ATM cell format but has predetermined information in a specific part of the ATM cell format to distinguish the AIS cell from the ATM cell.

Fault notifying system for asynchronous transfer mode communication

In a VPI and VCI assignment system in an ATM system having a plurality of nodes and terminals, each of the nodes including a conversion unit which generates ATM cells from data sent from one of the terminals, and a node management unit which manages a corresponding one of the nodes, a management unit assigns VPIs and VCIs to calls and manages information concerning VPIs and VCIs currently assigned to the calls and idle VPIs and VCIs. An assignment requesting unit, which is provided in each of the nodes and connected to the management unit, requests the management unit to assign a VPI and a VCI to a call received from one of the terminals. An assignment cancelling unit, which is provided in each of the nodes and connected to the management unit, requests the management unit to cancel the VPI and VCI assigned to the call in response to an end of a communication related to the call.

Growing community of inventors

Kawasaki, Japan

Hiroyuki Hatta