Method and apparatus for controlling switched video in an optical fiber
telecommunications system
    1.
    发明授权
    Method and apparatus for controlling switched video in an optical fiber telecommunications system 失效
    用于控制光纤电信系统中的切换视频的方法和装置

    公开(公告)号:US5189673A

    公开(公告)日:1993-02-23

    申请号:US738181

    申请日:1991-07-30

    IPC分类号: H04N7/22

    CPC分类号: H04N7/22

    摘要: In an integrated telecommunications network adapted to provide narrowband telephony signals and broadband switched video signals, control signals for the broadband video signals are transmitted in the narrowband as baseband signals, which are frequency division multiplexed with the broadband switched video signals. The video control signals are transmitted over the same transmission lines as the broadband video signals and do not require the installation of additional transmission lines. Control signals from a plurality of subscribers are multiplexed together at a network unit and are transmitted as a channel on an optical fiber, after which the channels from a plurality of network units are further multiplexed together to form a frame of control channels which are transmitted to a video controller unit.

    摘要翻译: 在适于提供窄带电话信号和宽带交换视频信号的集成电信网络中,宽带视频信号的控制信号作为与宽带交换视频信号频分复用的基带信号在窄带中传输。 视频控制信号通过与宽带视频信号相同的传输线传输,并且不需要安装附加的传输线。 来自多个用户的控制信号在网络单元处被多路复用在一起作为光纤上的信道发送,之后来自多个网络单元的信道被进一步多路复用在一起以形成控制信道的帧,该帧被发送到 视频控制器单元。

    Optical network unit
    2.
    发明授权
    Optical network unit 失效
    光网络单元

    公开(公告)号:US5303229A

    公开(公告)日:1994-04-12

    申请号:US738327

    申请日:1991-07-31

    摘要: In an optical fiber telecommunications network, an optical network unit is provided in the subscriber neighborhood for terminating the optical fiber transmission line and for providing electrical signals over metallic lines to the subscribers. The unit functions to convert the optical signal to an electrical signal and demultiplex the electrical signal to divide out baseband telephony signals from broadband video channels. The electrical signals are further demultiplexed and distributed to line cards serving each subscriber, while the broadband video channels are demultiplexed and provided to subscribers that have requested specific video channels. The system includes a test unit for performing metallic tests and also a means to gather subscriber channel requests to form a video control channel which is transmitted to a remote terminal via a baseband telephony channel.

    摘要翻译: 在光纤通信网络中,在用户邻域提供光网络单元,用于终止光纤传输线,并且通过金属线路向用户提供电信号。 该单元用于将光信号转换为电信号,并将电信号解复用以从宽带视频信道中分离基带电话信号。 电信号进一步解复用并分配给为每个用户服务的线卡,而宽带视频信道被解复用并提供给已经请求特定视频信道的用户。 该系统包括用于执行金属测试的测试单元,以及收集用户信道请求以形成经由基带电话信道被发送到远程终端的视频控制信道的手段。

    Subscriber loop testing in a fiber-to-the-curb communications network
    4.
    发明授权
    Subscriber loop testing in a fiber-to-the-curb communications network 失效
    光纤到路由通信网络中的用户环路测试

    公开(公告)号:US5301050A

    公开(公告)日:1994-04-05

    申请号:US83787

    申请日:1993-06-25

    摘要: In fiber telecommunications network where an optical fiber is extended to the subscriber's neighborhood, mechanized loop testing is performed by a test unit located in a network unit in the subscriber's neighborhood. The test unit is responsive to commands from a controller located in the network unit to perform metallic line tests on the lines extending to the subscriber. Test results are stored in a memory associated with the controller in the network unit. Upon receipt of a test request from a central test controller, the controller within the network unit determines if there is sufficient time to perform the test; if so, a new test is performed and the results are conveyed back to the central test controller controller. If sufficient time is not available, the results of the last performed routine test contained in the memory are transmitted back to the central test controller. The test results sent back to the central test controller are conveyed firstly in the form of a particular four-digit code, which code is interpreted at a remote terminal and converted to a specific resistive signature which is conveyed back to the central test controller. The specific resistive signature is interpreted by the standard remote measurement unit located in a remote terminal.

    摘要翻译: 在光纤延伸到用户邻域的光纤电信网络中,机器化环路测试由位于用户邻域的网络单元中的测试单元执行。 测试单元响应来自位于网络单元中的控制器的命令,以对延伸到订户的线路执行金属线路测试。 测试结果存储在与网络单元中与控制器相关联的存储器中。 在从中央测试控制器接收到测试请求后,网络单元内的控制器确定是否有足够的时间进行测试; 如果是这样,则执行新的测试,并将结果传送回中央测试控制器控制器。 如果没有足够的时间,则包含在存储器中的最后执行的例行测试的结果被传送回中央测试控制器。 发送回中央测试控制器的测试结果首先以特定的四位代码的形式传送,该代码在远程终端被解释并转换成特定的电阻签名,该电阻签名被传送回中央测试控制器。 特定的电阻签名由位于远程终端的标准远程测量单元来解释。

    Facilitating digital subscriber line services via a subscriber premise network interface device
    7.
    发明授权
    Facilitating digital subscriber line services via a subscriber premise network interface device 有权
    通过用户住宅网络接口设备促进数字用户线路业务

    公开(公告)号:US07274669B2

    公开(公告)日:2007-09-25

    申请号:US10132806

    申请日:2002-04-25

    IPC分类号: H04L12/56 G01R31/08

    摘要: Various aspects of apparatuses and methods for enabling a subscriber premise network interface device (NID) to facilitate communication services including digitally derived voice services to be facilitated between a central office and a subscriber premise are disclosed herein. In accordance with one embodiment of the disclosures herein, such a method includes facilitating a downstream DSL voice channel transmission process at a subscriber premise Network Interface Device (NID) and facilitating an upstream DSL voice channel transmission process at the subscriber premise NID. The downstream DSL voice channel transmission process facilitates converting a voice component of a downstream DSL data stream to a corresponding downstream analog voice signal. The upstream DSL voice channel transmission process facilitates converting an upstream analog voice signal to an upstream voice component of an upstream DSL data stream.

    摘要翻译: 这里公开了用于使用户驻地网络接口设备(NID)促进包括数字导出语音服务在内的中央局和用户驻地之间的通信服务的装置和方法的各个方面。 根据本文公开的一个实施例,这种方法包括促进用户驻地网络接口设备(NID)处的下游DSL语音信道传输过程,并且促进用户驻地NID处的上游DSL语音信道传输过程。 下游DSL语音信道传输处理有助于将下游DSL数据流的语音分量转换成对应的下游模拟语音信号。 上行DSL语音信道传输处理有助于将上游模拟话音信号转换成上游DSL数据流的上游语音分量。

    Facilitating digital subscriber line services via a subscriber premise network interface device
    10.
    发明授权
    Facilitating digital subscriber line services via a subscriber premise network interface device 有权
    通过用户住宅网络接口设备促进数字用户线路业务

    公开(公告)号:US07639697B2

    公开(公告)日:2009-12-29

    申请号:US11354525

    申请日:2006-02-15

    IPC分类号: H04L12/28

    摘要: Various aspects of apparatuses and methods for enabling a subscriber premise network interface device (NID) to facilitate communication services including digitally derived voice services to be facilitated between a central office and a subscriber premise are disclosed herein. In accordance with one embodiment of the disclosures herein, such a method includes facilitating a downstream DSL voice channel transmission process at a subscriber premise Network Interface Device (NID) and facilitating an upstream DSL voice channel transmission process at the subscriber premise NID. The downstream DSL voice channel transmission process facilitates converting a voice component of a downstream DSL data stream to a corresponding downstream analog voice signal. The upstream DSL voice channel transmission process facilitates converting an upstream analog voice signal to an upstream voice component of an upstream DSL data stream.

    摘要翻译: 这里公开了用于使用户驻地网络接口设备(NID)促进包括数字导出语音服务在内的中央局和用户驻地之间的通信服务的装置和方法的各个方面。 根据本文公开的一个实施例,这种方法包括促进用户驻地网络接口设备(NID)处的下游DSL语音信道传输过程,并且促进用户驻地NID处的上游DSL语音信道传输过程。 下游DSL语音信道传输处理有助于将下游DSL数据流的语音分量转换成对应的下游模拟语音信号。 上行DSL语音信道传输处理有助于将上游模拟话音信号转换成上游DSL数据流的上游语音分量。