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1. 发明专利

JP2002374249A System for setting and releasing dynamic virtual private network 审中-公开
标题翻译：用于设置和释放动态虚拟网络的系统
公开(公告)号：JP2002374249A
公开(公告)日：2002-12-26
申请号：JP2001179499
申请日：2001-06-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUKADA KOJI , HOSHI TORU , AKIYAMA HIDEHIRO
IPC分类号： H04M3/42 , H04L12/24 , H04L12/66 , H04M3/00
摘要： PROBLEM TO BE SOLVED: To provide a system for setting and releasing a dynamic virtual private network, that solves the difficulty in a static VPN(virtual private network) setting, to secure the security in the case of realizing an external line call and an incoming call service between inter-VPN extensions, although there is no particular problem in the range of utilizing an extension phone service within a VPN.
SOLUTION: The system generates a VPN exclusively for calls on the occurrence of the calling, allows an IP phone gateway and an IP phone terminal associated with the speech of the call dynamically pertaining to the VPN, allows IP phone gateway and an IP phone terminal associated with the speech of the call, to dynamically exclude from the VPN, when the call is finished and deletes the VPN.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于设置和释放动态虚拟专用网络的系统，其解决了在静态VPN（虚拟专用网络）设置中的困难，以在实现外部线路呼叫和进入的情况下确保安全性 VPN之间的呼叫服务，尽管在VPN内使用分机电话服务的范围内没有特别的问题。解决方案：系统在发生呼叫时专门为呼叫生成VPN，允许IP电话网关和与动态属于VPN的呼叫语音相关联的IP电话终端允许IP电话网关和IP电话终端相关联与呼叫的语音，动态地从VPN中排除，当呼叫完成并删除VPN。

2. 发明专利

JP2002077268A PORTABLE TELEPHONE IP CONNECTION SYSTEM 失效
公开(公告)号：JP2002077268A
公开(公告)日：2002-03-15
申请号：JP2000271491
申请日：2000-09-04
申请人： HITACHI LTD
发明人： TANIGAWA KEIKO , TSUKADA KOJI , YUMOTO KAZUMA , HOSHI TORU
IPC分类号： H04B7/26 , H04L12/28 , H04L12/70 , H04M11/00 , H04W4/00 , H04W48/18 , H04W76/02 , H04W80/04 , H04W84/12 , H04W88/18 , H04W92/18 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To provide a portable telephone set which improves current low communication speed and to provide a call managing server reducing the processing load of functions loaded on the portable telephone set for the use of the data communication of the portable telephone set in a house. SOLUTION: A LAN interface is given to the portable telephone set and a function, which can be connected directly to an IP network, is installed. The call managing server substitutively controls a call is installed for reducing the load of the function/performance loaded on the portable telephone set.

3. 发明专利

JPH11234338A DATA RELAYING METHOD AND RELAYING DEVICE 失效
公开(公告)号：JPH11234338A
公开(公告)日：1999-08-27
申请号：JP3756298
申请日：1998-02-19
申请人： HITACHI LTD
发明人： TANIGAWA KEIKO , TSUKADA KOJI , HOSHI TORU , KANAI HIROSHI
IPC分类号： H04L12/951 , H04L12/28 , H04L12/66 , H04L12/70 , H04L12/891 , H04L12/56
摘要： PROBLEM TO BE SOLVED: To reduce use bands and to improve the communication efficiency of a line by multiplexing respective relay voice data of a stream which has a common destination and common data to one relay stream. SOLUTION: A gateway GW acquires coded data from each encoding processing part 401 in plural D/A conversion processing parts 205, temporarily stores plural streams in an input buffer 402, after that, takes out data from the buffer 402 if the data corresponding to a stream of the same transmission destination exists from address information, multiplexes it to the same packet, adds prescribed header information, sends it to a communication network interface controlling part 204 through a transmission processing part 406 and transmits it to the internet by using a communication protocol TCP/IP. When the opposite GW receives a multiplexed packet, it decomposes each stream with a decomposition processing part 408, temporarily stores it in an output buffer 409, sends it a decoding processing part 410 according to an output timing and decodes data by performing D/A conversion.

4. 发明专利

JPH10136024A COMMUNICATION SYSTEM 失效
公开(公告)号：JPH10136024A
公开(公告)日：1998-05-22
申请号：JP29003796
申请日：1996-10-31
申请人： HITACHI LTD
发明人： TAKAHARA KEIKO , HOSHI TORU , KOYAMA TOSHIAKI
IPC分类号： H04M3/00 , H04L12/64 , H04L12/66 , H04L12/70 , H04L29/06 , H04L29/12 , H04M7/00 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To permit the user of a communication terminal to easily start communication with the other communication terminal connected to an internet, through a public telephone network by permitting an originating/incoming server to decide an incoming route and to execute relaying by means of the designation of the telephone number of an incoming-side communication terminal. SOLUTION: The originating/incoming server is constituted of a memory 211, CPU 212 executing the processing of communication control, and an accumulation device 213 storing mapping information and routing information. Furthermore, a communication network interface control part 214 for executing communication in Internet, and the public telephone network and an inner bus 215 are provided. Routing information of the accumulation device 213 is registered, corresponding to the area code of the telephone number. It contains information on the originating/incoming server covering the area of the area code and information on the communication route to the originating/incoming server. CPU 212 realizes the function of the communication network interface control part 214 by executing the communication program of the memory 211. Thus, the route of the communication terminal can be decided, based on the telephone number of the incoming-side with such constitution.

5. 发明专利

JPH07115469A VOICE COMMUNICATION SYSTEM 失效
公开(公告)号：JPH07115469A
公开(公告)日：1995-05-02
申请号：JP25959093
申请日：1993-10-18
申请人： HITACHI LTD
发明人： TAKAHARA KEIKO , IWAMI NAOKO , HOSHI TORU , MATSUI SUSUMU
IPC分类号： H04M3/42
摘要： PURPOSE:To recognize a transmission opponent by a reception side and to recognize a reason for no response of a speech opponent by a transmission side by integrating the communication channel of a data system and that of a voice system with a LAN, and displaying the name and address of the transmission side and the speech refusal reason of the reception side, etc. CONSTITUTION:When a transmitter clicks a transmission button by selecting a communication opponent, a 'screen in calling' is displayed on the reception side, and the name, department, and address of the transmitter are displayed on a field 601. A receiver can hold speech with the transmitter by clicking a reception button 1602 replying to the call of the transmitter. When the receiver desires to refuse the call, the name of the opponent is displayed on the field 1701 of a display screen at the transmission side by clicking refusal reason informing buttons 1603-1605, and also. the speech refusal reason is displayed. Therefore, the case to interrupt a job can be reduced, which improves convenience.

6. 发明专利

JPH06187311A MULTIPROCESSOR SYSTEM AND INTER-PROCESSOR COMMUNICATION METHOD 失效
公开(公告)号：JPH06187311A
公开(公告)日：1994-07-08
申请号：JP21720593
申请日：1993-09-01
申请人： HITACHI LTD
发明人： TAKAHASHI YASUHIRO , HOSHI TORU
IPC分类号： G06F13/38 , G06F15/16 , G06F15/173 , H04Q3/545 , H04L12/48
摘要： PURPOSE:To provide a multiprocessor system wherein data can be transferred between processors at a high speed. CONSTITUTION:A multiprocessor system consists of the processors 1 and ATM switches 2 whose number corresponds to the bit width of the internal bus of each processor, each processor 1 has an interface 10 for connecting with the ATM switches 2. Each interface 10 divides a sent data block into plural bit data blocks and adds a header containing routing information, determined by a destination processor, to each bit data block for conversion into plural cells, and sends those cells to the ATM switches 2 in parallel. The cells are transferred in parallel to the destination processor by the ATM switches 2 and reassembled into the original data block at the interface of the destination processor.

7. 发明专利

JPH05207544A COMMUNICATION SYSTEM IN RADIO PORTABLE TERMINAL EQUIPMENT SYSTEM 失效
公开(公告)号：JPH05207544A
公开(公告)日：1993-08-13
申请号：JP1475092
申请日：1992-01-30
申请人： HITACHI LTD
发明人： MATSUI SUSUMU , TAKAHASHI YASUHIRO , YANO TADASHI , HOSHI TORU
IPC分类号： H04Q7/38 , H04B7/26 , H04Q7/24 , H04Q7/26 , H04Q7/30
摘要： PURPOSE:To allow the user to select an available communication class by judging the availability of voice communication and of data communication based on measured communication quality and judging a possible highest modulation demodulation speed when the data communication is available. CONSTITUTION:A reception circuit 104 sends a signal level to a communication quality judging circuit 106, which judges the communication quality from electric field strength information and numerizes the quality as, e.g. 10-step evaluation and stores the result to an internal register in a form decoded by a CPU 116. The relation between the electric field strength and the communication quality is registered in advance in the circuit 106. Upon the request of the user, the CPU 116 reads a value of the register in the circuit 106 and displays the availability of data communication, that of voice communication and a maximum data communication speed when the data communication is available onto a display device 120 according to the value. The communication quality expressed in the 10-step evaluation is stored in a memory 117 as data after an evaluation experiment is implemented. The CPU 116 references the data and makes evaluation. The user receives the data to implement the communication.

8. 发明专利

JPH03263958A CHANNEL DECIDING METHOD 失效
公开(公告)号：JPH03263958A
公开(公告)日：1991-11-25
申请号：JP6102690
申请日：1990-03-14
申请人： HITACHI LTD , HITACHI MICROCUMPUTER ENG
发明人： MAEDA KATSUMI , SAITO TORU , HOSHI TORU
IPC分类号： H04L29/08 , H04M3/00
摘要： PURPOSE:To select an information channel with low communication cost and minimum load by adding an information channel negotiation function negotiating the information channel between both communication stations making communication with each other. CONSTITUTION:The information channel negotiation is realized by allowing a start side communication station to propose plural desired information channels and alternate channels and allowing a reply side communication station to select a usable channel among them. In the case of communication by a communication station 310 via a communication network 300, the information channel 330 is decided between the communication stations 310 to exchange information channel negotiation information through the control channel 320.

9. 发明专利

JPH03112253A VOICE STORAGE DEVICE 失效
公开(公告)号：JPH03112253A
公开(公告)日：1991-05-13
申请号：JP24916389
申请日：1989-09-27
申请人： HITACHI LTD , HITACHI MICROCUMPUTER ENG
发明人： KATORI YUJI , HOSHI TORU , SAITO TORU , MAEDA KATSUMI
IPC分类号： G06F3/16 , H04M1/65 , H04M3/42 , H04M3/533 , H04M11/00
摘要： PURPOSE:To enable a compression system to be selected by a user and to perform the magnification and compression processings of voice data without interposing a processor by providing a compression route switching circuit for the voice data, etc. CONSTITUTION:The compression route switching circuit 42 for the voice data is connected to a CODEC 43, an SIO 39, and an ADPCM conversion circuit 40. And the compression route of the voice data is decided to a route 11 in a non-compression mode, a route 12 in a compression mode, and a route 13 in compression/magnification mode based on an instruction from the user. And the route 12 is set for a voice on which no voice editing processing is applied, and it is accumulated in a RAM 38 and an external memory device 33 accompanying by compression via the circuit 40. Also, the route 13 is set for the compression/magnification processing of accumulated voice data, and it is processed with the SIO 39 and the circuit 40. Thereby, it is possible to reduce the memory capacity of the RAM 38 and the device, and also, hardware can be effectively used, and the processing efficiency of the processor MPU 36 for voice storage control can be improved.

10. 发明专利

JPH01120161A INFORMING SYSTEM FOR ISDN TERMINAL TRANSFER DESTINATION ADDRESS 失效
公开(公告)号：JPH01120161A
公开(公告)日：1989-05-12
申请号：JP27745987
申请日：1987-11-04
申请人： HITACHI LTD , HITACHI KEIYO ENG
发明人： YAMAUCHI MASAHARU , SAITO TORU , HOSHI TORU
IPC分类号： H04M3/54 , H04M1/00 , H04M1/64 , H04M1/658
摘要： PURPOSE:To evade the occupation of a termination-side terminal during its transfer communication by making a reconnection with the place where a termination-side user is present only by the function of the terminal according to a transfer destination address in the absence of the user. CONSTITUTION:When a SETUP message which is a request to originate from an origination-side ISDN terminal 1 is received, the termination-side ISDN terminal 6 where the user is absent sends out an answer message to the terminal 1 by setting the transfer destination address which is already inputted to user information in a call control message as its answer in a transfer destination address area 28 automatically before the termination-side user is present. Consequently, the terminal 1 sets the transfer destination address in a termination address area 25 as the termination address in the SETUP message which is the request to originate at the time of reorigination, and then sends the address. Consequently, the transfer destination termination-side ISDN terminal 7 installed where the target user is present is called directly.

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