Map-based directory system
    1.
    发明授权
    Map-based directory system 失效
    基于地图的目录系统

    公开(公告)号:US06577714B1

    公开(公告)日:2003-06-10

    申请号:US08824106

    申请日:1997-03-25

    IPC分类号: H04M1100

    摘要: A method and system are disclosed for a map-based directory service. Users are presented with a map on a computer screen, the map having symbols indicating real-world locations such as buildings, streets, parks, and bodies of water. A close correspondence exists between the map and the real-world. The map further has symbols indicating virtual locations. A virtual location, as the name implies, refers to a location that appears on the map but is not physically present in the real world. In accordance with the present invention, users can locate listings in conjunction with both real and virtual locations related to such listings, and, can connect to the entities associated with those listings once located.

    摘要翻译: 公开了一种用于基于地图的目录服务的方法和系统。 用户在计算机屏幕上呈现地图,该地图具有指示诸如建筑物,街道,公园和水体之类的真实世界位置的符号。 地图和现实世界之间存在着密切的对应关系。 该地图还具有指示虚拟位置的符号。 顾名思义,一个虚拟位置是指在地图上出现但并不存在于现实世界中的位置。 根据本发明,用户可以结合与这样的列表相关的真实和虚拟位置来定位列表,并且可以连接到与定位的那些列表相关联的实体。

    Optical communication system with improved maintenance capabilities
    2.
    发明授权
    Optical communication system with improved maintenance capabilities 失效
    光通信系统具有改进的维护能力

    公开(公告)号:US5815295A

    公开(公告)日:1998-09-29

    申请号:US728253

    申请日:1996-10-08

    摘要: A communication system where a central module repetitively sends interrogation optical pulses to endpoint modules in order to determine operational state of the endpoint modules and of the two-way communication path to the central module. Those pulses also determine whether the endpoint module wishes to initiate communication with the central office. In the endpoint module, a modulator whose function is to send data from the customer's terminal is arranged to operate in two distinct modes. When it is "powered off", which is when the customer terminal is inactive, it allows central office signals to loop-back to the central office. In this state, the optical pulses sent by the central office serve the function of optical continuity checking. When an endpoint module wishes to establish a connection, i.e., the customer terminal wishes to "make a call", the modulator is arranged to interpose itself in the loop-back path and inform the central module of its desire, such as by temporarily turning off the path to the central. When the optical interrogation pulses fail to return to the central office, the central module knows that either the endpoint module is wishing to make a call, or a break exists in the communications path. The central module assumes that the endpoint module desires to make a call and responds by sending an acknowledgment. Thereafter, the endpoint module can proceed with communication.

    摘要翻译: 一种通信系统,其中中央模块向端点模块反复发送询问光脉冲,以便确定端点模块和到中央模块的双向通信路径的操作状态。 这些脉冲还确定端点模块是否希望启动与中心局的通信。 在端点模块中,功能是从客户终端发送数据的调制器被布置成以两种不同的模式运行。 当“停电”,即当客户终端不活动时,它允许中心局信号回到中心局。 在这种状态下,由中心局发送的光脉冲起到光连续性检查的作用。 当端点模块希望建立一个连接,即客户终端希望“拨打电话”时,调制器被安排为将其自身插入到环回路径中,并通知中心模块的愿望,例如通过临时转动 离开中心路。 当光询问脉冲不能返回到中心局时,中央模块知道端点模块希望进行呼叫,或者在通信路径中存在中断。 中央模块假定端点模块希望进行呼叫并通过发送确认进行响应。 此后,端点模块可以进行通信。

    Optical communication system with improved maintenance capabilities

    公开(公告)号:US5790287A

    公开(公告)日:1998-08-04

    申请号:US740083

    申请日:1996-10-24

    摘要: A communication system where a central module repetitively sends interrogation optical pulses to endpoint modules in order to determine operational state of the endpoint modules and of the two-way communication path to the central module. Those pulses also determine whether the endpoint module wishes to initiate communication with the central office. In the endpoint module, a modulator whose function is to send data from the customer's terminal is arranged to operate in two distinct modes. When it is "powered off", which is when the customer terminal is inactive, it allows central office signals to loop-back to the central office. In this state, the optical pulses sent by the central office serve the function of optical continuity checking. When an endpoint module wishes to establish a connection, i.e., the customer terminal wishes to "make a call", the modulator is arranged to interpose itself in the loop-back path and inform the central module of its desire, such as by temporarily turning off the path to the central. When the optical interrogation pulses fail to return to the central office, the central module knows that either the endpoint module is wishing to make a call, or a break exists in the communications path. The central module assumes that the endpoint module desires to make a call and responds by sending an acknowledgment. Thereafter, the endpoint module can proceed with communication.

    Fiber/wired communication system
    5.
    发明授权
    Fiber/wired communication system 失效
    光纤/有线通信系统

    公开(公告)号:US07734179B1

    公开(公告)日:2010-06-08

    申请号:US10639456

    申请日:2003-08-13

    IPC分类号: H04J14/00

    摘要: A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received communication signals to one or more fiber nodes and/or one or more mini-fiber nodes. The concentrator demultiplexes/splits received signals for the mini-fiber nodes and the fiber nodes and forwards demultiplexed/split signals respectively. The mini-fiber nodes may combine signals received from the head-end with loop-back signals used for local medium access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and/or fiber node and transmitted to the concentrator. The concentrator multiplexes/couples the mini-fiber node and the fiber node upstream signals and forwards multiplexed/coupled signals to the head-end. Communication signals received from the mini-fiber nodes that are destined to other end-users also connected to the mini-fiber nodes may be routed by the concentrator without head-end interaction.

    摘要翻译: 提供头端和终端用户之间的通信系统,可扩展带宽和可靠性。 集中器从头端接收通信信号,并将接收到的通信信号转发到一个或多个光纤节点和/或一个或多个微型光纤节点。 集中器对微型光纤节点和光纤节点进行解复用/分离接收信号,并分别转发分离/分离信号。 在将信号转发给最终用户之前,微型光纤节点可以组合从头端接收的信号和用于本地介质访问控制的环回信号。 上行数据由微型光纤节点和/或光纤节点接收并发送到集中器。 集中器将微纤维节点和光纤节点上行信号复用/耦合,并将多路复用/耦合信号转发到前端。 从迷你光纤节点接收的目的地为也连接到微型光纤节点的其他最终用户的通信信号可以由集线器路由,而无需头端交互。

    Fiber and wire communication system
    6.
    发明授权
    Fiber and wire communication system 失效
    光纤和电线通信系统

    公开(公告)号:US07068937B1

    公开(公告)日:2006-06-27

    申请号:US10721864

    申请日:2003-11-26

    IPC分类号: H04J14/00

    摘要: This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node. The mux-node may route upstream communication signals received from the mini-fiber nodes as downstream signals to other mini-fiber nodes also connected to the mux-node without head-end interaction.

    摘要翻译: 本发明提供了一种用于头端和终端用户之间的通信系统的新架构,其扩展了通信系统的带宽和可靠性。 多路复用节点从前端接收通信信号,并将接收到的通信信号转发到一个或多个微型光纤节点。 与前端的连接是通过少量光纤,并且到每个微型光纤节点的连接可以经由可提供全双工通信的一个或多个光纤。 前端可以使用数字或数字和模拟信号与多路复用节点进行通信。 在将信号转发给最终用户之前,微型光纤节点可以组合从头端接收的信号和用于本地媒体接入控制的环回信号。 上行数据由微型光纤节点接收并发送到多路复用节点。 多路复用节点可以将从微型光纤节点接收的上行通信信号作为下行信号路由到也连接到多路复用器节点的其他微型光纤节点,而无需前端交互。

    Apparatus and method to monitor communication system status
    7.
    发明授权
    Apparatus and method to monitor communication system status 失效
    监控通信系统状态的装置和方法

    公开(公告)号:US6137780A

    公开(公告)日:2000-10-24

    申请号:US908498

    申请日:1997-08-07

    摘要: A monitoring apparatus and method are provided for a communication system in which a central office communicates to at least one end unit using intermediate remote nodes. The remote node receives signals from both the central office and the end units. Each remote node can be equipped with apparatus for monitoring the integrity of paths of the communication system. The monitoring apparatus can include a mixing device that mixes received signals to produce combined signals. The received signals generally include a pilot signal sent from the central office and a data signal sent from the at least one end unit. The state of the communication system is analyzed based on the combined signals. If the combined signals includes only the data signal from the end unit, the path through which the pilot signal was sent is inoperative. If the combined signals includes only the pilot signal, the transmission path from the end unit over which the data signal is sent is inoperative. If the combined signals are not received at the central office after transmission of the pilot signal, a determination is made that any part of transmission path could be inoperative.

    摘要翻译: 提供了一种用于通信系统的监视装置和方法,其中中心局使用中间远程节点与至少一个终端单元进行通信。 远程节点接收来自中心局和终端单元的信号。 每个远程节点可以配备有用于监视通信系统的路径的完整性的装置。 监视装置可以包括混合装置,其混合接收到的信号以产生组合信号。 所接收的信号通常包括从中心局发送的导频信号和从至少一个终端单元发送的数据信号。 基于组合信号分析通信系统的状态。 如果组合信号仅包括来自端单元的数据信号,则导频信号被发送的路径不起作用。 如果组合信号仅包括导频信号,则从发送数据信号的终端单元的传输路径不起作用。 如果在发送导频信号之后在中心局没有接收到组合信号,则确定传输路径的任何部分可能不起作用。

    Fiber/wired communication system
    10.
    发明授权
    Fiber/wired communication system 失效
    光纤/有线通信系统

    公开(公告)号:US06654563B1

    公开(公告)日:2003-11-25

    申请号:US09460770

    申请日:1999-12-14

    IPC分类号: H04J1408

    摘要: A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received communication signals to one or more fiber nodes and/or one or more mini-fiber nodes. The concentrator demultiplexes/splits received signals for the mini-fiber nodes and the fiber nodes and forwards demultiplexed/split signals respectively. The mini-fiber nodes may combine signals received from the head-end with loop-back signals used for local medium access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and/or fiber node and transmitted to the concentrator. The concentrator multiplexes/couples the mini-fiber node and the fiber node upstream signals and forwards multiplexed/coupled signals to the head-end. Communication signals received from the mini-fiber nodes that are destined to other end-users also connected to the mini-fiber nodes may be routed by the concentrator without head-end interaction.

    摘要翻译: 提供头端和终端用户之间的通信系统,可扩展带宽和可靠性。 集中器从头端接收通信信号,并将接收到的通信信号转发到一个或多个光纤节点和/或一个或多个微型光纤节点。 集中器对微型光纤节点和光纤节点进行解复用/分离接收信号,并分别转发分离/分离信号。 在将信号转发给最终用户之前,微型光纤节点可以组合从头端接收的信号和用于本地介质访问控制的环回信号。 上行数据由微型光纤节点和/或光纤节点接收并发送到集中器。 集中器将微纤维节点和光纤节点上行信号复用/耦合,并将多路复用/耦合信号转发到前端。 从迷你光纤节点接收的目的地为也连接到微型光纤节点的其他最终用户的通信信号可以由集线器路由,而无需头端交互。