Optical transmission system
    1.
    发明授权
    Optical transmission system 失效
    光传输系统

    公开(公告)号:US06823139B2

    公开(公告)日:2004-11-23

    申请号:US10241270

    申请日:2002-09-09

    IPC分类号: H04J1402

    CPC分类号: H04B10/272

    摘要: A system (SYS) for optically transmitting information, e.g., television signals, from a subcenter (HUB), e.g., a cable television head end, over a passive optical distribution network to a plurality of optical network units (ONU) includes a plurality of nodes (K1, . . . , Km) for optically transmitting further information, e.g., telephone signals, and a plurality of optical couplers (C1, C2). The further information of each node (K1, . . . , Km) is fed via a respective coupler (C1, C2) into a transmission line connected to only part of the plurality of optical network units (ONU), e.g., to only one optical network unit (ONU). Each optical network unit (ONU) is connected to a group of customer locations (END) and, for the transmission of information from this group of customer locations (END), via a further passive optical distribution network to a node (K1, . . . , Km). Each node (K1, . . . , Km,) includes means for separating the information received from the customer locations into, e.g., interactive request signals and telephone signals. The interactive request signals are routed to the subcenter (HUB), and the telephone signals to a telephone network (NET).

    摘要翻译: 用于从无源光分布网络到多个光网络单元(ONU)的子中心(HUB)(例如,有线电视头端部)光学地传送诸如电视信号的信息的系统(SYS)包括多个 用于光学传输更多信息(例如电话信号)和多个光耦合器(C1,C2)的节点(K1,...,Km)。 每个节点(K1,...,Km)的进一步信息通过相应的耦合器(C1,C2)馈送到仅连接到多个光网络单元(ONU)的一部分的传输线,例如仅一个 光网络单元(ONU)。 每个光网络单元(ONU)连接到一组客户位置(END),并且为了将来自该组客户位置(END)的信息经由另一无源光分配网络传输到节点(K1,...) 。,Km)。 每个节点(K1,...,Km)包括用于将从客户位置接收的信息分离成例如交互式请求信号和电话信号的装置。 交互式请求信号被路由到子中心(HUB),并且电话发信号到电话网络(NET)。

    Digital communication electrical/optical access node having buffer
memory matrix for switchable multi-channel bidirectional transmission
    2.
    发明授权
    Digital communication electrical/optical access node having buffer memory matrix for switchable multi-channel bidirectional transmission 失效
    具有用于可切换多通道双向传输的缓冲存储器矩阵的数字通信电气/光学访问节点

    公开(公告)号:US5214638A

    公开(公告)日:1993-05-25

    申请号:US610524

    申请日:1990-11-08

    IPC分类号: H04L12/20 H04Q11/04

    CPC分类号: H04Q11/04

    摘要: The network access node of a digital communication system for the bidirectional transmission of message signals between, for example, a switching center and subscribers as an electrically switchable connection between the lines to the switching centers with a first interface and the lines to the subscribers with a second interface. The first interface is preferably an interface for a time-division multiplex signal with a transmission rate of 2 Mbit/s; the second interface is preferably an interface for signals in multiple access with time-division multiplex (TDM/TDMA). The buffer memory of the TDM/TDMA system is made up of partial memories arranged as a matrix. The partial memories are used simultaneously as a buffer memory for the circuit of the paths.

    摘要翻译: 数字通信系统的网络接入节点,用于在诸如交换中心和用户之间的消息信号的双向传输之间,作为具有第一接口的交换中心的线路之间的电可切换连接,以及具有用户 第二个接口 第一接口优选地是用于具有2Mbit / s的传输速率的时分复用信号的接口; 第二接口优选地是用于具有时分复用(TDM / TDMA)的多路访问中的信号的接口。 TDM / TDMA系统的缓冲存储器由作为矩阵排列的部分存储器构成。 部分存储器同时用作路径电路的缓冲存储器。

    Method of transferring information between microcomputers in a
decentralized process control system, particularly for telephone systems
    3.
    发明授权
    Method of transferring information between microcomputers in a decentralized process control system, particularly for telephone systems 失效
    在分散式过程控制系统(特别是电话系统)中的微型计算机之间传送信息的方法

    公开(公告)号:US4634812A

    公开(公告)日:1987-01-06

    申请号:US625760

    申请日:1984-06-28

    摘要: The invention relates to a method of transferring information between microcomputers in a decentralized process control system, particularly for telephone systems. To prevent contention for possession of the information transfer bus without the need for central equipment, a simple bus system consisting of a multiwire data bus and two single-wire control buses is proposed. Bus mastership is passed on after transmission, with the address of the next transmitter being determined by each microcomputer itself and forming part of each message. Bus mastership is determined by communication of the previous transmitter and by calculations performed by the microcomputer itself.

    摘要翻译: 本发明涉及一种在分散式过程控制系统(特别是电话系统)中的微型计算机之间传送信息的方法。 为了防止在不需要中央设备的情况下拥有信息传输总线的争用,提出了由多线数据总线和两条单线控制总线组成的简单总线系统。 总线主管传输后传递,下一个发射机的地址由每个微型计算机本身确定并构成每个消息的一部分。 总线主管由先前发射机的通信和由微型计算机本身执行的计算决定。

    Optical transmission system
    4.
    发明授权
    Optical transmission system 失效
    光传输系统

    公开(公告)号:US06490065B2

    公开(公告)日:2002-12-03

    申请号:US09010334

    申请日:1998-01-21

    IPC分类号: H04J1402

    CPC分类号: H04B10/272

    摘要: A system (SYS) for optically transmitting information, e.g., television signals, from a subcenter (HUB), e.g., a cable television head end, over a passive optical distribution network to a plurality of optical network units (ONU) includes a plurality of nodes (K1, . . . , Km) for optically transmitting further information, e.g., telephone signals, and a plurality of optical couplers (C1, C2). The further information of each node (K1, . . . , Km) is fed via a respective coupler (C1, C2) into a transmission line connected to only part of the plurality of optical network units (ONU), e.g., to only one optical network unit (ONU). Each optical network unit (ONU) is connected to a group of customer locations (END) and, for the transmission of information from this group of customer locations (END), via a further passive optical distribution network to a node (K1, . . . , Km). Each node (K1, . . . , Km,) includes means for separating the information received from the customer locations into, e.g., interactive request signals and telephone signals. The interactive request signals are routed to the subcenter (HUB), and the telephone signals to a telephone network (NET).

    摘要翻译: 用于从无源光分布网络到多个光网络单元(ONU)的子中心(HUB)(例如,有线电视头端部)光学地传送诸如电视信号的信息的系统(SYS)包括多个 用于光学传输更多信息(例如电话信号)和多个光耦合器(C1,C2)的节点(K1,...,Km)。 每个节点(K1,...,Km)的进一步信息通过相应的耦合器(C1,C2)馈送到仅连接到多个光网络单元(ONU)的一部分的传输线,例如仅一个 光网络单元(ONU)。 每个光网络单元(ONU)连接到一组客户位置(END),并且为了将来自该组客户位置(END)的信息经由另一无源光分配网络传输到节点(K1,...) 。,Km)。 每个节点(K1,...,Km)包括用于将从客户位置接收的信息分离成例如交互式请求信号和电话信号的装置。 交互式请求信号被路由到子中心(HUB),并且电话发信号到电话网络(NET)。