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1. 发明专利

JP2002064565A COMMUNICATION MODE SWITCHING METHOD AND SWITCH 失效
公开(公告)号：JP2002064565A
公开(公告)日：2002-02-28
申请号：JP2000252403
申请日：2000-08-23
申请人： FUJITSU LTD
发明人： OYOSHI SHOJI , ISHIGAMI AKIKO
IPC分类号： H04L12/64 , H04L12/70 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a switch that can simply switch a communication mode without the need for man-hours where all switches are gradually shifted to ATM switches in a network in which frame relay switches and the ATM switches are intermingled. SOLUTION: The switch is provided with an ATM side bus 11 and a frame side bus 12 placed in parallel, a frame/cell conversion function section 13 that is inserted to the ATM side bus 11, and a frame/cell switching section 14 that alternatively switches the ATM side bus 11 and the frame side bus 12. The frame/cell conversion function section 13 has an ATM switch 21 and a frame/ cell format conversion section 22 that is connected to the ATM switch 21.

2. 发明专利

JPH07212358A ROUTE DETOUR SYSTEM 失效
公开(公告)号：JPH07212358A
公开(公告)日：1995-08-11
申请号：JP98094
申请日：1994-01-10
申请人： FUJITSU LTD , FUJITSU KANSAI TSUSHIN SYST KK
发明人： MATSUO NAOTO , SUZUKI TOSHIHIRO , UEDA SHINYA , OYOSHI SHOJI
IPC分类号： G06F13/00 , H04L12/00
摘要： PURPOSE:To obtain a route detour system where load distribution is performed and a ping-pong phenomenon is not generated when a route destination is determined, regarding a route detour system performing load distribution. CONSTITUTION:When a detour factor is generated for the traffic from a terminal Aj including plural other stations to a main route a0, a detour is made to a specified detour destination route ak other than the main route a0 by a detour means 10. This system is provided with a detour rate determination means 20 determining what rate of the traffic amount in the specified terminal Aj is detoured and a rate information granting means 30 granting the rate information according to the detour factor to the detour rate determination means 20.

3. 发明专利

JPH05236010A 失效
公开(公告)号：JPH05236010A
公开(公告)日：1993-09-10
申请号：JP3187392
申请日：1992-02-19
申请人： FUJITSU LTD
发明人： KUNIBE HIROYUKI , FURUKAWA KAZUNORI , OYOSHI SHOJI
IPC分类号： H04M3/54 , H04L12/70 , H04Q11/04 , H04L12/56
摘要： PURPOSE:To obtain the improved transfer control system in which a terminal equipment of a transfer destination is switched without interruption and restoration of a line between a packet exchange and a caller terminal equipment once connected in the transfer control system in the packet exchange. CONSTITUTION:The system is the data transfer control system in a packet exchange network 1 in which data transmitted between a sender terminal equipment 100 and a transfer sender terminal equipment 20 are transferred to a transfer destination terminal equipment 300 and the data are returned again to the transfer sender terminal equipment 300 after the end of communication. Then, the transfer sender terminal equipment 300 sends a restoration request signal to the packet exchange network 1 and the packet exchange network 1 receives the said restoration request signal, the reception signal is transferred to the transfer destination terminal equipment 300, a reception disable signal is sent to the said sender terminal equipment 100 after the end of changeover connection to the transfer destination terminal equipment 300 to allow the transmission of the packet, and after the end of communication between the sender terminal equipment 100 and the transfer destination terminal equipment 300, the data are transferred again to the transfer sender terminal equipment 200.

4. 发明专利

JPH057223A PHYSICAL CHANNEL RE-SELECTING SYSTEM 失效
公开(公告)号：JPH057223A
公开(公告)日：1993-01-14
申请号：JP1052291
申请日：1991-01-31
申请人： FUJITSU LTD , FUJITSU KANSAI TSUSHIN SYST KK
发明人： OYOSHI SHOJI , MOURI TOMOHIRO
IPC分类号： H04Q3/545 , H04L12/70 , H04L12/925
摘要： PURPOSE:To enable the channel selection again and to improve the connectability of a call and the service of a network when a user selects an unusable physical channel. CONSTITUTION:This system is constituted of a physical channel information setting means 5 to search and control the physical channel information which can be used when an ISDN exchange 3 receives a calling packet X. 25CR4 from a transmitting user 1, a call setting message transmitting means 7 to refer to the physical channel information, to code the usable physical channel information into a call setting message 6, and to transmit it to receiving user 2, and a response message processing means 9 to establish a channel and to transmit a packet X. 25CN10 when the communication capacity can be secured, from the physical channel selected by the receiving user 2 in a response message 8 to respond by receiving the call setting 6 with the receiving user 2, and when the communication capacity cannot be secured, to re-start the call setting message transmitting means 7, transmit the call setting message 6 again and re- select the channel.

5. 发明专利

JPH11136261A NETWORK SYSTEM AND COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH11136261A
公开(公告)日：1999-05-21
申请号：JP31116197
申请日：1997-10-28
申请人： FUJITSU LTD
发明人： OYOSHI SHOJI , TAKEBE AKIKO , TAKAHASHI HIROSHI
IPC分类号： H04Q3/58 , H04L12/28 , H04L12/46 , H04L12/66 , H04M3/00 , H04Q3/00
摘要： PROBLEM TO BE SOLVED: To provide the network system to be installed without revising set contents of an existing PBX network. SOLUTION: A 1st conversion means 27 of a 1st communication equipment 10 converts a data destination address receives from a PBX 51 into a unified address unified in an integrated network TN. Succeedingly, an ATM transmission processing section 29 generates a setup message including the unified address and an ATM exchange processing section 23 sends the setup message to a 2nd communication equipment 12. When the incoming call processing section 30 of the 2nd communication equipment receiving the calling set up message extracts the unified address, a PBX specification means 31 specifies a PBX to which a data destination address is to be given. Then a 2nd conversion means 32 converts the unified address into an original data destination address and the data destination address is sent to a PBX 63 specified by the PBX specification means 31.

6. 发明专利

JPH09186720A FRAME RELAY EXCHANGE 失效
公开(公告)号：JPH09186720A
公开(公告)日：1997-07-15
申请号：JP34382195
申请日：1995-12-28
申请人： FUJITSU LTD
发明人： FUKUDA YOICHI , HOUSHIYOU TAKAYUKI , AMOSE TAKASHI , SAKAMOTO TATSUO , OYOSHI SHOJI
IPC分类号： H04L12/70 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To provide a frame relay exchange with improved reliability by using a frame relay serial number comparison means of an incoming side frame relay exchange so as to correct inverted sequence through aborting inverted frames even when the inverted sequence of transmission frames between exchanges takes place thereby preventing inverted sequence of received frames at an incoming frame relay terminal equipment. SOLUTION: An incoming exchange 3-1 uses a repeater side reception section 9 to receive frames. A frame relay serial number storage memory 10 stores a frame serial number of a frame received precedingly. A frame relay serial number comparison section 11-1 outputs a start signal of a terminal equipment side transmission section 12 when a difference between a frame serial number of the received frame and a frame serial number of the precedingly received frame is within a prescribed serial number missing maximum range and aborts the frame when at the outside of the range. A terminal equipment side transmission section 12 allows the frame received from the frame relay serial number comparison section 11-1 to give to the incoming frame relay terminal equipment.

7. 发明专利

JPH0897856A CONTROLLING METHOD FOR TRANSFER DELAY SERVICE IN CONNECTION BETWEEN PACKET SWITCHING NETWORKS 失效
公开(公告)号：JPH0897856A
公开(公告)日：1996-04-12
申请号：JP23491994
申请日：1994-09-29
申请人： FUJITSU LTD
发明人： OYOSHI SHOJI
IPC分类号： H04L12/857 , H04L12/56
摘要： PURPOSE: To improve service by reflecting a transfer delay value requested by a DTE under a private packet switching network and performing control in both public and private packet switching networks. CONSTITUTION: The private packet switching network X' is connected to the public packet switching network X by X.25. A CR packet provided with transfer delay selection/display facility TDS∞ OUF of a transfer delay request value (a) in a virtual call is received from a packet terminal DTEx (packet terminal) under the switching network X'. Then, for the TDS∞ OUF of the CR packet to the switching network X, a value (a-b) obtained by subtracting the transfer delay value (b) of the switching network X' from the request value (a) from the DTFx is set as the transfer delay request value to the switching network X. In this case, when the value (a-b) is smaller than the minimum value (x) of the transfer delay request value allowed in the switching network X, the minimum value (x) is set as the transfer delay request value.

8. 发明专利

JPH06261070A OPPOSITE PARTY VERIFICATION METHOD FOR PACKET COMMUNICATIONS UTILIZING PUBLIC ISDN NETWORK 失效
公开(公告)号：JPH06261070A
公开(公告)日：1994-09-16
申请号：JP4257193
申请日：1993-03-03
申请人： FUJITSU LTD
发明人： KUNIBE HIROYUKI , OYOSHI SHOJI
IPC分类号： H04L13/08 , H04L9/32 , H04L12/70 , H04L12/56
摘要： PURPOSE:To reduce the delay time of connection by verification processing by using a called subaddress in a call message on a call request to an ISD network so as to execute opposite party verification processing. CONSTITUTION:A connection source communications equipment 10-1 stores identification data to a called subaddress 32 in the stage of generating a call message 31 and send the data to an ISD network. A communications equipment 10-2 at a connection destination verifies an opposite party based on identification data stored in a called address 32 in a received call message 31 to execute data link establish processing. Thus, transmission/reception of frame data for verifying the opposite party having been executed after data link establishment is omitted and then a time till a backup route is set up through an ISDN line is reduced.

9. 发明专利

JPH0983572A BACKUP LINE CONNECTION/CUT SYSTEM FOR FRAME RELAY AND BACKUP COMMUNICATION SYSTEM FOR FRAD 失效
公开(公告)号：JPH0983572A
公开(公告)日：1997-03-28
申请号：JP23500795
申请日：1995-09-13
申请人： FUJITSU LTD
发明人： TAKEBE AKIKO , KATO JUNICHI , OYOSHI SHOJI , SONE YUKIO
IPC分类号： H04L1/22 , H04L12/70 , H04L12/707 , H04L12/711 , H04L29/14 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To attain the processing of cut/connection in accordance with the state of an opposite station at the time of using a backup line in the backup line connection/cut system of a frame relay in constitution where a standard repeating line and the backup line are provided between exchanges. SOLUTION: The respective exchanges are provided with backup control parts 1 connecting the backup lines by the generation of a main cause for using the backup lines, monitoring frame transmission control parts 2 which periodically transmit backup monitoring frames provided with information displaying the presence/absence of the backup main causes of a self exchange- side through the connected backup lines and monitoring frame reception control parts 3 receiving the backup monitoring frames from an opposite party. The backup control parts 1 identify to which station the backup main cause exists between the self station or the other station and controls the cut of the backup line.

10. 发明专利

JPH07212398A SELECTING SYSTEM FOR ALTERNATIVE ROUTE 失效
公开(公告)号：JPH07212398A
公开(公告)日：1995-08-11
申请号：JP500794
申请日：1994-01-21
申请人： FUJITSU LTD , FUJITSU KANSAI TSUSHIN SYST KK
发明人： AMOSE TAKASHI , YASUDA MITSUYA , OYOSHI SHOJI
IPC分类号： H04M3/22 , H04L12/707 , H04M3/00 , H04L12/56
摘要： PURPOSE:To provide the communication route setting system capable of setting the optimal communication route without straying the packet in the network on the system of selecting the alternative route when there are plural communication routes to the objective network. CONSTITUTION:In the communication network with plural alternative routes to be connected with the specified other network through plural other network connection exchanges (incoming exchange devices), alternative station data including the station number of plural incoming exchange devices related to the plural alternative routes and the connection line number of each incoming exchange device are registered in a data register means 10 of the outgoing exchange device. When a call setting request comes from the terminal, a communication route information editing means 20 edits the communication route information being the information on the alternative circuit including the plural connection routes based on the alternative station data. The contents of the communication route information is put on the call setting request packet by an other exchange device alternative transmission means 50 and sent to the incoming exchange device. A alternative circuit selection means 30 of the incoming exchange device performs connection processing with the other network according to the communication route information and alternative processing to the other incoming exchange devices.

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