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    • 1. 发明授权
    • Packet data switching system
    • 分组数据交换系统
    • US5523999A
    • 1996-06-04
    • US407801
    • 1995-03-20
    • Ryouzi TakanoMasataka SakaiSumie MoritaKiyohumi MitsuzeYoshiharu Kato
    • Ryouzi TakanoMasataka SakaiSumie MoritaKiyohumi MitsuzeYoshiharu Kato
    • H04L12/951H04J3/02
    • H04L12/56
    • A packet data switching system having packet switching equipment and a plurality of transfer control units cooperating with the packet switching equipment exchanging packet data to be transferred through the transfer control units. In the system each packet data is divided into packet frames each having the same frame length and all the packet frames are processed synchronously in each of the transfer control units. Each of the packet frames is composed of a header area and data area. The header area is used for indicating transfer control information, such as an address of a destination transfer control unit and a continuous transmission flag which denotes that the related packet frame should be exchanged to the same destination as that of the preceding packet frame.
    • 具有分组交换设备的分组数据交换系统和与分组交换设备协作的多个传送控制单元,交换分组数据通过传送控制单元进行传送。 在该系统中,每个分组数据被分成具有相同帧长度的分组帧,并且所有分组帧在每个传送控制单元中被同步处理。 每个分组帧由报头区域和数据区域组成。 报头区域用于指示传送控制信息,例如目的地传送控制单元的地址和表示相关分组帧应当被交换到与前一分组帧相同的目的地的连续传输标志。
    • 2. 发明授权
    • Data transfer method performed in a data processor provided in a
switching system
    • 在交换系统中提供的数据处理器中执行的数据传输方法
    • US5271009A
    • 1993-12-14
    • US655054
    • 1991-02-14
    • Ryouzi TakanoKiyohumi MitsuzeTakashi NaraTakashi HatanoSumie Morita
    • Ryouzi TakanoKiyohumi MitsuzeTakashi NaraTakashi HatanoSumie Morita
    • H04L29/02H04L13/08H04L29/06H04J3/24
    • H04L29/06
    • A packet data and a header added to a head of the packet data for specifying a transfer condition of the packet data are divided together to data blocks (DBs) each having a designated data length, consisting of an initial DB including the header and an initial part of the packet data, intermediate DBs each including an intermediate part of the packet data and a last DB including a last part of the packet data, so as to be transferred to a data transfer destination in a data processor of a switching system in accordance with write commands for the initial, intermediate and last DBs respectively, and a read command for asking whether the DBs are correctly transferred is sent to the data transfer destination once, after the DBs are transferred. When the DBs are transferred, the packet data is restored at the data transfer destination only by synthesizing the transferred DBs and removing the header.
    • 分组数据和添加到用于指定分组数据的传送条件的分组数据的头部的分组数据和标题被分割为每个具有指定数据长度的数据块(DB),其由包括报头的初始DB和初始 分组数据的一部分,每个包括分组数据的中间部分的中间DB和包括分组数据的最后部分的最后一个DB,以便根据切换系统的数据处理器被传送到数据传送目的地 分别用于初始,中间和最后一个DB的写入命令,以及一个用于询问DB是否被正确传输的读取命令在传输DB之后被发送到数据传输目的地一次。 当DB被传送时,仅通过合成所传送的DB并且去除标题来在数据传送目的地恢复分组数据。
    • 6. 发明授权
    • Subscriber line control apparatus to concurrently detect change in line
state for subscriber lines and determine validity of timer device
    • 用户线路控制装置同时检测用户线路的线路状态变化并确定定时器设备的有效性
    • US5577114A
    • 1996-11-19
    • US434122
    • 1995-05-02
    • Sumie MoritaRyouzi TakanoTakashi Hatano
    • Sumie MoritaRyouzi TakanoTakashi Hatano
    • H04Q3/60H04M3/22H04Q3/78H04Q11/04
    • H04M3/2272H04Q11/0407
    • A subscriber line control device utilizes a scan input table and a last look table. The scan input table stores respective current line states of a plurality of analog subscriber lines. The last look table stores respective preceding line states of the plurality of analog subscriber lines and information for validating or invalidating a timer device. A valid timer device corresponds to when a monitoring process is required. The scan input table is compared with the last look table at every predetermined cycle. When they do not match, it is judged whether the line state has changed or if the timer device is validated. Based on the judging result, an analog subscriber line control is performed according to an instruction specified by a call processing unit. The analog subscriber control is any of a call origination monitor, a dial pulse monitor, and an on-hook and off-hook (HIT) monitor.
    • 用户线路控制装置利用扫描输入表和最后一个表。 扫描输入表存储多个模拟用户线的各自的当前线状态。 最后一个查看表存储多个模拟用户线的各自的前一行状态和用于验证或使定时装置无效的信息。 有效的定时器设备对应于何时需要监视进程。 将扫描输入表与每个预定周期的最后一个表进行比较。 当它们不匹配时,判断线路状态是否改变,或者定时器设备是否被验证。 根据判断结果,根据由呼叫处理单元指定的指令进行模拟用户线路控制。 模拟用户控制是呼叫发起监视器,拨号脉冲监视器以及挂机和摘机(HIT)监视器中的任何一个。
    • 7. 发明授权
    • Message division communication method and communication system
    • 消息分组通信方式和通信系统
    • US06654385B1
    • 2003-11-25
    • US09362169
    • 1999-07-27
    • Hiromi OdakaSumie MoritaShigeru SekineEiji IshiokaHisashi Koga
    • Hiromi OdakaSumie MoritaShigeru SekineEiji IshiokaHisashi Koga
    • H04J316
    • H04L12/403H04L1/16H04L12/40013H04L12/46
    • A message division communication method and system are disclosed for a communication system comprising a host, an intermediate device connected to the host through a high-speed bus and a remote device connected to the intermediate device or the host through a low-speed bus. A message is transmitted in such a manner that the host designates and notifies the remote device of a maximum message length determined in a way corresponding to the transmission rate of the low-speed bus and divides the message into division messages each not exceeding the maximum message length thereby to transmit and receive the division messages between the host and the remote device. Even with a communication system in which low-speed and high-speed buses coexist, a message can be transmitted and received by a common communication control scheme.
    • 公开了一种用于通信系统的消息分割通信方法和系统,所述通信系统包括主机,通过高速总线连接到主机的中间设备和通过低速总线连接到中间设备或主机的远程设备。 以如下方式发送消息:主机以与低速总线的传输速率对应的方式确定的最大消息长度来指定和通知远程设备,并将该消息划分为不超过最大消息的分割消息 长度,从而在主机和远程设备之间发送和接收除法消息。 即使使用低速和高速总线共存的通信系统,也可以通过公共通信控制方案发送和接收消息。