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    • 6. 发明授权
    • Broad band switching network
    • 宽带交换网络
    • US5493573A
    • 1996-02-20
    • US703519
    • 1991-05-20
    • Hiroshi KobayashiKunihiko SekiyaYoshihiro HidakaKazuo AidaMichiaki OkanoShigenobu MinamiTakashi IkedaShoichiro YamasakiHideaki HaruyamaKazuyoshi Ozawa
    • Hiroshi KobayashiKunihiko SekiyaYoshihiro HidakaKazuo AidaMichiaki OkanoShigenobu MinamiTakashi IkedaShoichiro YamasakiHideaki HaruyamaKazuyoshi Ozawa
    • H04L12/801H04L12/911H04Q11/04H04L12/52
    • H04L49/3081H04L49/254H04L49/505H04L49/55H04Q11/0492H04L2012/5609H04L2012/562H04L2012/5626H04L2012/5632H04L2012/5678H04L49/10
    • Since a transmission route is set in accordance with the number of relaying broad band switching nodes present between two terminating nodes of a plurality of broad band switching nodes, a through-put characteristic, an affecting degree due to occurrence of a defect, the traffic of the entire network is distributed. In addition, when the system is started up, transmission routes with a minimum band width necessary for routing control have been set in all the broad band switching nodes. Whenever a call takes place, a transmission route is set and the band width is variably set by using an intelligent inference mechanism. Moreover, an intelligent distributed control for distributing such an intelligent inference mechanism in the broad band switching nodes is used. Thus, the load of processing a call can be decreased, while the reliability of the network and the improvement of the operating efficiency can be achieved. Furthermore, since the private branch system interface uses a frame which consists of a control window area for controlling its transmission and a cell multiplexing area for multiplexingly transmitting cells, bidirectional transmission between the broad band switching node and a plurality of terminal equipments can be achieved with a single extension transmission line. In addition, since a frame construction which satisfies the ATM method is used, different information transmission speeds can be flexibly selected.
    • 由于根据存在于多个宽带交换节点的两个终止节点之间的中继宽带交换节点的数量来设置传输路由,因此产生通过特性,由于缺陷发生的影响程度, 整个网络都是分布式的。 此外,当系统启动时,已经在所有宽带交换节点中设置了具有路由控制所需的最小带宽的传输路由。 每当发生呼叫时,设置传输路由,并且通过使用智能推理机制可变地设置带宽。 此外,使用用于在宽带交换节点中分发这种智能推理机制的智能分布式控制。 因此,可以降低处理呼叫的负担,同时可以实现网络的可靠性和提高操作效率。 此外,由于专用分支系统接口使用由用于控制其发送的控制窗口区域和用于多路复用发送小区的小区复用区域组成的帧,所以可以通过以下方式实现宽带交换节点与多个终端设备之间的双向传输: 单个扩展传输线。 此外,由于使用满足ATM方式的帧结构,因此可以灵活地选择不同的信息传输速度。
    • 7. 发明授权
    • Data transmission system
    • 数据传输系统
    • US4110558A
    • 1978-08-29
    • US764073
    • 1977-01-31
    • Satoshi KageyamaKunihiko Sekiya
    • Satoshi KageyamaKunihiko Sekiya
    • H04L1/00H04L1/16H04L1/18H04L7/00H04L7/10H04L29/08
    • H04L1/245H04L1/0002H04L1/0015H04L1/1607H04L1/1803H04L7/10H04L1/0025H04L1/0061
    • A data-transmission system using a continuous ARQ system, wherein a block (word) synchronization code is transmitted through a transmission line from a transmitter to a receiver repeatedly at a predetermined time interval, until the transmitter receives a signal (ACK) denoting the detection of the synchronization code from the receiver. Upon receipt of the synchronization code detection signal, the transmitter issues data blocks each having a fixed length to the receiver continuously from the point of time at which the succeeding synchronization code is to be transmitted. In the invention a predetermined number of test data blocks are further transmitted to the receiver in succession to the synchronization code. The receiver examines a block error rate concerning the test data blocks and supplies the transmitter with not only the synchronization code detection signal but also a data rate-specifying signal. The transmitter delivers data at a rate dependent on the data rate-specifying signal.
    • 一种使用连续ARQ系统的数据传输系统,其中通过传输线以预定的时间间隔重复地从发射机到接收机传输块(字)同步码,直到发射机接收到表示检测的信号(ACK) 的来自接收器的同步码。 在接收到同步码检测信号时,发射机从发送后续同步码的时间点连续向接收机发送每个具有固定长度的数据块。 在本发明中,预定数量的测试数据块被连续地发送到接收机,同步码。 接收机检查与测试数据块相关的块错误率,并向发送器提供不仅同步码检测信号,而且提供数据速率指定信号。 发射机以取决于数据速率指定信号的速率传送数据。