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1. 发明专利

JP2008187686A TUNNEL COMMUNICATION SYSTEM, CONTROL DEVICE, AND TUNNEL COMMUNICATION APPARATUS 审中-公开
公开(公告)号：JP2008187686A
公开(公告)日：2008-08-14
申请号：JP2007021994
申请日：2007-01-31
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA , OSHIMA YOSHITO , KATO JUNYA
IPC分类号： H04L12/22 , H04L12/66 , H04L12/70
摘要： PROBLEM TO BE SOLVED: To realize tunnel communication after controlling a transfer resource and preventing a hijacking of a path on a network such as a wide-area IP network. SOLUTION: The control device receives a path generation request that requests generation of a virtual path in the gap with an incoming-side tunnel communication apparatus from an outgoing-side tunnel communication request, and generates the virtual path by setting a transfer resource required for data transfer between the outgoing-side tunnel communication apparatus and the incoming-side tunnel communication apparatus. Each of the outgoing-side and incoming-side tunnel communication apparatuses uses the virtual path to exchange, with a tunnel communicating party apparatus, inter-authentication information used for inter-authentication for mutually authenticating tunnel communicating party apparatuses each other, and judges whether to set up or to reject tunnel communication with the tunnel communicating party apparatus on the basis of the inter-authentication information acquired from the tunnel communicating party apparatus. If it is determined that the tunnel communication is to be rejected, the establishment of the tunnel communication is rejected. COPYRIGHT: (C)2008,JPO&INPIT

2. 发明专利

JP2003122717A DEVICE AND METHOD FOR PERMITTING ACCESS, ACCESS PERMISSION PROGRAM AND RECORDING MEDIUM 审中-公开
公开(公告)号：JP2003122717A
公开(公告)日：2003-04-25
申请号：JP2001314997
申请日：2001-10-12
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： FUKAMI KIMIHIKO , KAWASHIMA MASAHISA
IPC分类号： G06F12/14 , G06F12/00 , G06F15/00 , G06F21/20 , G06F21/24
摘要： PROBLEM TO BE SOLVED: To reduce communication sequence to an Origin server to discriminate whether or not an authentication/access permission processing to the Origin server is necessary and to reduce a distribution burden of the server without changing the conventional distributing operation of the Origin server. SOLUTION: When the authentication/access permission processing of the Origin server is judged to be necessary, an input of authentication information can be directly prompted from a mirror server to a requesting origin without inquiring the Origin server whether or not the authentication information is necessary to a request without the authentication information by providing a means for confirming whether or not the authentication information is included in the request, a means for prompting the input of the authentication information when no authentication information is judged to be included in the request and a means for requesting the authentication/access permission processing to the Origin server when the authentication information is judged to be included.

3. 发明专利

JP2002149535A SYSTEM, DEVICE AND METHOD FOR FILE TRANSFER AND RECORDING MEDIUM RECORDED WITH FILE TRANSFER PROGRAM 审中-公开
公开(公告)号：JP2002149535A
公开(公告)日：2002-05-24
申请号：JP2001259588
申请日：2001-08-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ABE TAKESHI , KAWASHIMA MASAHISA
IPC分类号： G06F12/00 , G06F13/00
摘要： PROBLEM TO BE SOLVED: To realize a file transferring device in which time necessary to file transmission and reception processing is short and waiting time for file reception to be able to be started is not in proportion to the a file size and the number of repeaters. SOLUTION: A repeater is provided with an incoming file transmitting means (15) for receiving a file identifier I and downloaded data quantity F (O-R) from a receiver (50) and a file storing means (13) for storing the file identifier I and the file data of the file while making the identifier I correspond to the file data and transferring the file identifier from the incoming file transmitting means and the file data corresponding to the downloaded data quantity to the incoming file transmitting means and transmits the data (F(O-R)) to the receiver.

4. 发明专利

JP2000244490A MULTI-SPOT CONFERENCE DEVICE 失效
公开(公告)号：JP2000244490A
公开(公告)日：2000-09-08
申请号：JP4676299
申请日：1999-02-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA , MIURA NORIHIRO , YOSHIDA SHUNSUKE
IPC分类号： H04N7/15 , H04L12/18 , H04M3/56
摘要： PROBLEM TO BE SOLVED: To provide a conference system where a transmission line band required for a conference does not increase in proportion to the number of participants through the effective use of the transmission line band by dynamically deciding the information transmission rates of respective terminal equipment so that the total of the information transmission rates from the respective terminal equipment does not exceed a rate allocated to the conference. SOLUTION: A device is formed of conference terminal equipment 1 and a terminal rate designation device 2. The terminal rate designation device 2 is provided with a terminal rate deciding means 20 deciding the information transmission rates of conference terminal equipment so that the total of the information transmission rates of conference terminal equipment 1 joining in the conference does not exceed a rate allocated to the conference and an information transmission means 11 transmitting information by the rate designated by a terminal rate designation message. The terminal rate deciding means 20 dynamically changes the information transmission rates on respective conference terminal equipment 1. The information transmission means 11 dynamically changes the information transmission rate in the conference in accordance with the change in the designated information transmission rate during the conference.

5. 发明专利

JPH10200531A REALTIME ABR COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH10200531A
公开(公告)日：1998-07-31
申请号：JP59597
申请日：1997-01-07
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA
IPC分类号： H04Q3/00 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To synchronize a data-generating rate of a host layer with an ATM cell rate and to suppress a resident time of cells of a buffer in an ATM cellularized part within a prescribed time, even in the data communication without having a window control function such as, dynamic image transmission. SOLUTION: A communication equipment is provided with a host layer information-generating means 11, an ATM cellularized means 10 that applies an ATM cellularized process to the generated information to transmit the result and a display rate increase/decrease display means 17 that displays rate increase/decrease indicating whether or not a generated rate should be decreased from the ATM cellularized means 10 to the information generating means 11. Furthermore, the ATM cellularized means 10 checks the number of cells not yet transmitted and stored in a buffer 14 periodically and decides the rate increase/ decrease display content, depending on whether or not the number of cells not yet transmitted exceeds a prescribed threshold.

6. 发明专利

JP2002056259A METHOD AND DEVICE FOR RESERVING SERVICE RESOURCES AND PROGRAM RECORDING MEDIUM 失效
公开(公告)号：JP2002056259A
公开(公告)日：2002-02-20
申请号：JP2000242896
申请日：2000-08-10
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： YAMADA KOJI , KAWASHIMA MASAHISA , MIURA NORIHIRO , AKIBA ATSUYA
IPC分类号： G06Q30/06 , G06Q50/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for reserving service resources, with which a memory resource can be effectively utilized without lowering efficiency in the judgement of reservation possibility. SOLUTION: When a user request arrives, accepting processing is started (121) and while referring to a network constitution DB, which link is to be used for the arriving reservation request is identified. While referring to an acceptance support table, a time span related to the request is selected and read from the acceptance support table (122) and a field selected out of the table is locked. It is decided whether the remaining bands of the time span of a read transmission link are equal to or more than request bands or not (123). When it is impossible, processing is skipped to (125). When it is possible, it is decided that the reservation can be accepted and contents in the reservation registration DB and the acceptance support table are updated (124). All locks to the acceptance support table are canceled (125), the result is reported to the user (126) and processing is finished.

7. 发明专利

JP2001036528A MULTICAST REPEATER FOR MULTI-SPOT COMMUNICATION 失效
公开(公告)号：JP2001036528A
公开(公告)日：2001-02-09
申请号：JP20466399
申请日：1999-07-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA , MIURA NORIHIRO
IPC分类号： H04L12/18 , H04L12/761 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To make even a terminal, etc., connected by a line at slower rate possible to participate in multi-spot communication by converting a rate of a data stream from a repeating connection terminal by uni-cast and transmitting the data stream after the rate is returned by a multicast packet in which a multicast address allocated to the multi-spot communication is defined as destination. SOLUTION: The data stream to be received is selected and received by a multicast stream receiving means 2 among the data streams by the multicast packet to be allocated to the multi-spot communication by a stream selecting means 1. The selected and received data stream is converted into the data of the uni-cast packet and the converted data stream is transmitted to a terminal at the data distributing destination by a uni-cast stream transmitting means 4. At the time, information of desire for reception from the terminal at the data distributing terminal is received by a stream selection message receiving means 9.

8. 发明专利

JP2000244491A MULTI-POINT CONFERENCE SYSTEM 失效
公开(公告)号：JP2000244491A
公开(公告)日：2000-09-08
申请号：JP4678299
申请日：1999-02-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA , MIURA NORIHIRO , YOSHIDA SHUNSUKE
IPC分类号： H04N7/15 , H04L12/18 , H04L12/28 , H04L12/46 , H04L12/70 , H04M3/56 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To prevent a required transmission channel frequency band from being increased in proportion to the number of participants and to avoid a propagation delay of information and changes in speakers from being increased even when the number of the participants is increased. SOLUTION: An edge device 2 aborts packets from terminals 1 other than a terminal of a speaker based on a speaker notice received from a center device 13. The edge device uses a multi-cast transmission means 21 to transmit information of a speaker terminal t other edge device and a transmitted packet is copied by a multi-cast function of a packet exchange network and delivered to a plurality of edge device.

9. 发明专利

JP2003099347A DISTRIBUTED SERVER SELECTING SYSTEM 审中-公开
公开(公告)号：JP2003099347A
公开(公告)日：2003-04-04
申请号：JP2001291791
申请日：2001-09-25
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIURA NORIHIRO , TAKAYA KAZUYUKI , KAWASHIMA MASAHISA
IPC分类号： G06F15/177 , G06F12/00 , G06F13/00 , G06F17/30
摘要： PROBLEM TO BE SOLVED: To realize a search engine, having a mechanism to register a server list to a server selecting device which distributes access to a proper server, without giving a suer the awareness of existence of a distributed server when the user gets access to the list of services obtained with an optical keyword searching or directory searching to the search engine. SOLUTION: A distributed server selecting system is provided with a server list registering device, a server list table, a service-searching device and a server- selecting device. The server list registering device receives information for requesting the registration of a server list and registers it to the server list table. The service-searching device receives information for requesting the search of services and presents the list of the corresponding services. The user of the services gets access to the server-selecting device during his access to the services mentioned in the list of the services, and the server-selecting device refers to the server list table, corresponding to the services concerned and selects the server, to which it allows the user to obtain the access.

10. 发明专利

JP2001273223A DEVICE AND METHOD FOR SELECTING SERVER, AND RECORDING MEDIUM RECORDED WITH SERVER SELECTION PROGRAM 失效
公开(公告)号：JP2001273223A
公开(公告)日：2001-10-05
申请号：JP2000082994
申请日：2000-03-23
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAWASHIMA MASAHISA , FUKAMI KIMIHIKO , ABE HIROFUMI
IPC分类号： G06F17/30 , G06F12/00 , G06F13/00
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for selecting server and a recording medium in which server selection program, is recorded by which the number of times to newly acquire felicity can be reduced, time required for server selection can be shortened and a network load can be reduced. SOLUTION: The felicities acquired in the past are stored in a felicity storage means 5, and on the basis of the felicities stored in the suitability storage means 5, the felicity for an inputted server list and the identifier of a user is estimated by a felicity estimating means 3. On the basis of certainty in the estimated value of this estimated felicity, the felicity is acquired as needed and the felicities stored in the felicity storage means 5 is updated with this acquired felicity. On the basis of the estimated felicity, the candidates of a felicitous server are narrowed down by a server candidate narrowing means 1 and the felicitous server is determined from these narrowed server candidates.

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