Data integrity guarantee system
    1.
    发明授权
    Data integrity guarantee system 失效
    数据完整性保证体系

    公开(公告)号:US5761405A

    公开(公告)日:1998-06-02

    申请号:US407241

    申请日:1995-03-20

    摘要: The main storage, the communication interface portion and the circuit control module hold transmission data in the buffers until completion of the transmission has been confirmed. When a fault has occurred in the current operating system of the duplexed portions in the configuration elements of the host computer and the multi-circuit control unit, the duplexed portions are changed over from the current operating system to the stand-by system. In this case, information for reproducing data that has been lost due to the change-over is transmitted from the main storage and the circuit control module to the communication interface portion which has become the new current operating system. The communication interface portion which has become the new current operating system restarts the processing based on this information. Data integrity is guaranteed for the data of both directions of transmission and receiving between the host computer and the terminal without mutually confirming the state of data communications before the occurrence of the fault between the terminal and the host computer after the occurrence of the fault. Information exchanges of layer 3 or above are not carried out between the host computer and the terminal. Therefore, overhead of data communications can be minimized.

    摘要翻译: 主存储器,通信接口部分和电路控制模块保持缓冲器中的传输数据,直到传输完成已被确认为止。 当在主计算机和多电路控制单元的配置元件中的双工部分的当前操作系统中发生故障时,双工部分从当前操作系统切换到备用系统。 在这种情况下,用于再现由于转换而丢失的数据的信息从主存储器和电路控制模块发送到已经成为新的当前操作系统的通信接口部分。 已经成为新的当前操作系统的通信接口部分基于该信息重新启动处理。 数据完整性保证主机与终端之间的传输和接收两个方向的数据,而不会在发生故障之后在终端和主机之间的故障发生之前相互确认数据通信的状态。 第三层以上的信息交换不能在主机与终端之间进行。 因此,可以最小化数据通信的开销。

    Method and apparatus for an ISDN communication system using active and
stand-by ISDN communication adaptors to maintain operation when trouble
occurs
    2.
    发明授权
    Method and apparatus for an ISDN communication system using active and stand-by ISDN communication adaptors to maintain operation when trouble occurs 失效
    使用主动和备用ISDN通信适配器的ISDN通信系统的方法和装置,以便在故障发生时维持操作

    公开(公告)号:US5548710A

    公开(公告)日:1996-08-20

    申请号:US788319

    申请日:1991-11-05

    摘要: A trouble processing method of ISDN communication system using an ISDN (Integrated Services Digital Network) and a control apparatus of ISDN communication system. Among a plurality of ISDN communication adapters included in an ISDN communication control apparatus, the same TEI (Terminal Endpoint Identifier) value as that of an active ISDN communication adapter is assigned to its stand-by ISDN communication adapter. The stand-by ISDN communication adapter is made to operate in the same manner as the active ISDN communication adapter with the exception of interruption of transmission of an LAPD (Link Access Producer on the D-channel) to an ISDN. The stand-by ISDN communication adapter is held in the same communication state as the active communication adapter. When a trouble has occurred in the active ISDN communication adapter, the interruption of transmission of the LAPD frame is cancelled and the stand-by ISDN communication adapter is activated as the active ISDN communication adapter. As a result, data communication using an ISDN can be conducted, and recovery processing at the time of occurrence of a trouble in an ISDN communication adapter can be rapidly executed without making the other party of communication conscious of it.

    摘要翻译: 一种使用ISDN(综合业务数字网)的ISDN通信系统和ISDN通信系统的控制装置的故障处理方法。 在包括在ISDN通信控制装置中的多个ISDN通信适配器中,与其有效的ISDN通信适配器相同的TEI(终端端点标识符)值被分配给其备用的ISDN通信适配器。 备用ISDN通信适配器的工作方式与有效的ISDN通信适配器相同,除了将ISDN传输的LAPD(D-channel上的链路接入产生器)中断。 备用ISDN通信适配器被保持在与主动通信适配器相同的通信状态。 当主动ISDN通信适配器发生故障时,LAPD帧的传输中断被取消,备用ISDN通信适配器被激活为有效的ISDN通信适配器。 结果,可以进行使用ISDN的数据通信,并且可以迅速地执行在ISDN通信适配器中出现故障时的恢复处理,而不使其通信对方意识到。

    System for and method of exchanging server data in packet unit
    5.
    发明授权
    System for and method of exchanging server data in packet unit 失效
    以数据包单位交换服务器数据的系统和方法

    公开(公告)号:US6141338A

    公开(公告)日:2000-10-31

    申请号:US653276

    申请日:1996-05-24

    摘要: A server system constructed by a network using a known PBX in such a manner that information processing terminal equipment and server devices are held in normally-used extensions of the PBX together with other terminals such as telephones, facsimiles, etc. Logical channel numbers of packet links between the PBX and the information processing terminal equipment are assigned to electrically-connected server devices in association with each other and sent to users. The users sends server use data to corresponding destinations by data packets to which the logical channel numbers are applied. The PBX performs a packet exchange process such that the logical channel numbers are respectively associated with physical addresses of the server devices. If the PBX regards the users as improper users, then it does not inform the users of the logical channel numbers. When a logical channel number of a server device used at a user desire is recognized, the user can utilize the PBX server system even if a proper user does not know a physical address of the server device.

    摘要翻译: 由使用已知PBX的网络构成的服务器系统,使得信息处理终端设备和服务器设备与电话机,传真机等其他终端一起被保存在集团电话的正常使用的分机中。分组的逻辑信道号 将PBX与信息处理终端设备之间的链路相互分配给电连接的服务器设备,并发送给用户。 用户通过应用逻辑信道号的数据包将服务器使用数据发送到相应的目的地。 PBX执行分组交换处理,使得逻辑信道号分别与服务器设备的物理地址相关联。 如果集团电话将用户视为不正当的用户,则不通知用户逻辑信道号。 当识别到以用户期望使用的服务器设备的逻辑信道号时,即使适当的用户不知道服务器设备的物理地址,用户也可以使用PBX服务器系统。

    System for and method of exchanging server data in packet unit
    6.
    发明授权
    System for and method of exchanging server data in packet unit 失效
    以数据包单位交换服务器数据的系统和方法

    公开(公告)号:US07236487B2

    公开(公告)日:2007-06-26

    申请号:US11296318

    申请日:2005-12-08

    IPC分类号: H04L12/56

    摘要: A packet switch apparatus including a plurality of connecting points, each being coupled to one of a plurality of data processing units, and apparatus for receiving a first packet including identification information of a first data processing unit via a first connecting point. The invention further includes a storage for storing correspondence between the first data processing unit and the first connecting point based on the identification information. Apparatus, responsive to reception of a second packet from a second data processing unit to be transmitted to the first data processing unit, transmits the second packet to the first data processing unit via the first connecting point based on the correspondence stored in the storage.

    摘要翻译: 一种分组交换设备,包括多个连接点,每个连接点都耦合到多个数据处理单元之一,以及用于经由第一连接点接收包括第一数据处理单元的标识信息的第一分组的装置。 本发明还包括一种用于基于识别信息存储第一数据处理单元和第一连接点之间的对应关系的存储器。 设备响应于从第二数据处理单元接收要发送到第一数据处理单元的第二分组,基于存储在存储器中的对应关系,经由第一连接点将第二分组发送到第一数据处理单元。

    System for and method of exchanging server data in packet unit
    8.
    发明授权
    System for and method of exchanging server data in packet unit 失效
    以数据包单位交换服务器数据的系统和方法

    公开(公告)号:US06621816B1

    公开(公告)日:2003-09-16

    申请号:US09161731

    申请日:1998-09-29

    IPC分类号: H04J116

    摘要: A packet switch apparatus including a plurality of connecting points, each being coupled to one of a plurality of data processing units, and apparatus for receiving a first packet including identification information of a first data processing unit via a first connecting point. The invention further includes a storage for storing correspondence between the first data processing unit and the first connecting point based on the identification information. Apparatus, responsive to reception of a second packet from a second data processing unit to be transmitted to the first data processing unit, transmits the second packet to the first data processing unit via the first connecting point based on the correspondence stored in the storage.

    摘要翻译: 一种分组交换设备,包括多个连接点,每个连接点都耦合到多个数据处理单元之一,以及用于经由第一连接点接收包括第一数据处理单元的标识信息的第一分组的装置。 本发明还包括一种用于基于识别信息存储第一数据处理单元和第一连接点之间的对应关系的存储器。 设备响应于从第二数据处理单元接收要发送到第一数据处理单元的第二分组,基于存储在存储器中的对应关系,经由第一连接点将第二分组发送到第一数据处理单元。

    Data communication apparatus having communication-mode changeover
function and method of data communication between data communication
stations having the same
    9.
    发明授权
    Data communication apparatus having communication-mode changeover function and method of data communication between data communication stations having the same 失效
    具有通信模式切换功能的数据通信装置和具有该通信模式切换功能的数据通信站之间的数据通信方法

    公开(公告)号:US5157662A

    公开(公告)日:1992-10-20

    申请号:US654196

    申请日:1991-02-12

    CPC分类号: H04Q11/0428

    摘要: In an ISDN network, data communications can be performed in two communication modes corresponding to line and packet switchings in the same network. The line switching is effective in transmitting mass data to a receiving station and receiving the same therefrom at high speed, and accounting is made to a period of time required for communication in a public network. On the other hand, the packet switching is effective in transmitting low-speed data or small amounts of data produced in a discrete manner, and accounting is made to the amount of transmitted data in the public network.With a valve toward making efficient use of the two communication modes, the present invention relates to a data communication apparatus of the type wherein the two communication modes are changed as needed so as to perform data communications, and to a data communication system suitable for use with the data communication apparatus. In other words, a means for performing data communication continuously over two calls is provided so as to change one communication mode to another under data communication based on a user's request.Thus, when the amount of creation of data varies appreciably under communication, data communication is made based on the optimal communication mode determined according to the amount of creation of the data.

    摘要翻译: 在ISDN网络中,可以在对应于同一网络中的线路和分组交换的两种通信模式中执行数据通信。 线路切换在将质量数据传送到接收站并且以高速接收它们的同时有效,并且计算到公共网络中通信所需的时间段。 另一方面,分组交换在传输低速数据或以离散方式产生的少量数据时是有效的,并且对公共网络中的传输数据的量进行计费。 利用有效利用两种通信模式的阀门,本发明涉及一种数据通信设备,其中根据需要改变两种通信模式以执行数据通信,并且涉及适合于使用的数据通信系统 与数据通信装置。 换句话说,提供了一种用于通过两次呼叫连续执行数据通信的装置,以便根据用户的请求在数据通信下将一种通信模式改变为另一种通信模式。 因此,当数据的创建量在通信中变化明显时,基于根据数据的创建量确定的最佳通信模式进行数据通信。