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11 条记录 (耗时 0.024 秒)

    CLOCK SYNCHRONIZATION IN A BIDIRECTIONAL NETWORK
    1.
    发明申请
    CLOCK SYNCHRONIZATION IN A BIDIRECTIONAL NETWORK 有权
    双向网络中的时钟同步

    公开(公告)号：US20090196205A1

    公开(公告)日：2009-08-06

    申请号：US12422593

    申请日：2009-04-13

    申请人： Donald C. Sorenson ,  Jiening Ao ,  Steven E. Blashewski ,  John W. Brickell ,  Florin Farcas ,  Richard J. Futch ,  Joseph Graham Mobley ,  John A. Ritchie, JR. ,  Lamar E. West, JR.

    发明人： Donald C. Sorenson ,  Jiening Ao ,  Steven E. Blashewski ,  John W. Brickell ,  Florin Farcas ,  Richard J. Futch ,  Joseph Graham Mobley ,  John A. Ritchie, JR. ,  Lamar E. West, JR.

    IPC分类号： H04L5/14 ,  H04L5/12 ,  H04J3/06

    CPC分类号： H04N21/4382 ,  H04J4/00 ,  H04L7/041 ,  H04L12/2801 ,  H04L29/06027 ,  H04L65/1016 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/4305 ,  H04N21/437 ,  H04N21/6118 ,  H04N21/6168

    摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator. Furthermore, the architecture may be integrated into other higher level devices such as, but not limited to, bridges, switches, routers, and/or gateways. In addition, the architecture may be used as a local network such as the networks commonly called local area networks (LANs). As a local network, the architecture supports guaranteed bandwidth for delivery of data flows to a plurality of host devices. Each host device might have a network interface card (NIC) that conforms to the architecture of the preferred embodiments of the present invention. Moreover, because the architecture may peacefully coexist with other services commonly-found in cable distribution networks, these other services may also be delivered to a host device. Thus, as a non-limiting example a host device may utilize the preferred embodiments of the present invention for local area network (LAN) data communication, and may also utilize cable television video channels in the same communication medium to carry various multimedia information.

    摘要翻译： 用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。 该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。 此外，该架构允许中央集中器支持多个远程设备，每个远程设备通过双向数据流的面向连接的分配来保证带宽。 上行和下行带宽分配可以支持任意方向的对称带宽以及非对称带宽。 该架构通常可用于支持远程设备和中央集中器之间的面向连接的物理层连接。 此外，该架构可以集成到其他较​​高级别的设备中，例如但不限于网桥，交换机，路由器和/或网关。 此外，该架构可以用作本地网络，例如通常称为局域网（LAN）的网络。 作为本地网络，该架构支持用于向多个主机设备传送数据流的保证带宽。 每个主机设备可以具有符合本发明的优选实施例的体系结构的网络接口卡（NIC）。 此外，由于架构可能与电缆分发网络中通常发现的其他服务和平共存，所以这些其他服务也可能被传送到主机设备。 因此，作为非限制性示例，主机设备可以将本发明的优选实施例用于局域网（LAN）数据通信，并且还可以利用同一通信介质中的有线电视视频信道来承载各种多媒体信息。

    Burst-mode combining of reverse path radio frequency signals
    3.
    发明授权
    Burst-mode combining of reverse path radio frequency signals 有权
    反向路径射频信号的突发模式组合

    公开(公告)号：US06714598B2

    公开(公告)日：2004-03-30

    申请号：US10134668

    申请日：2002-04-29

    申请人： Donald C. Sorenson ,  Lamar E. West, Jr.

    发明人： Donald C. Sorenson ,  Lamar E. West, Jr.

    IPC分类号： H04L2503

    CPC分类号： H04L12/2801 ,  H04N7/17309

    摘要： The present invention is directed towards a burst-mode combiner (BMC) typically located within a headend facility for transmitting received reverse signals to a specific application device dependent upon the presence of a carrier signal. The BMC includes BMC circuits that are each coupled to reverse receivers. The BMC circuits filter the reverse signals into specific frequencies. A carrier detect circuit detects the presence of a carrier signal, and when detected, allows the delayed reverse signals to be transmitted through to the application device.

    摘要翻译： 本发明针对通常位于头端设备内的突发模式组合器（BMC），用于根据载波信号的存在将接收到的反向信号发送到特定的应用设备。 BMC包括各自耦合到反向接收器的BMC电路。 BMC电路将反向信号滤波成特定频率。 载波检测电路检测载波信号的存在，并且当检测到时，允许将延迟的反向信号传输到应用装置。

    Apparatus and methods for generating uninterruptible AC power signals
    8.
    发明授权
    Apparatus and methods for generating uninterruptible AC power signals 失效
    用于产生不间断交流电力信号的装置和方法

    公开(公告)号：US5638244A

    公开(公告)日：1997-06-10

    申请号：US468410

    申请日：1995-06-06

    申请人： Fereydoun Mekanik ,  Donald C. Sorenson ,  Gregory S. Zediker ,  Thomas S. Osterman

    发明人： Fereydoun Mekanik ,  Donald C. Sorenson ,  Gregory S. Zediker ,  Thomas S. Osterman

    IPC分类号： H02J9/06 ,  H02H3/00

    CPC分类号： H02J9/062 ,  Y10T307/305 ,  Y10T307/615 ,  Y10T307/724

    摘要： A broadband communications network having an uninterruptible power supply. The power supply has one input connected to AC line voltage and another input connected to a gas powered electrical generator. The power supply contains an uninterruptible power supply module having a controlled ferroresonant transformer and a battery. The power supply also contains a bypass module having a controlled ferroresonant transformer. Switches are provided to allow either of the inputs to be connected to either the UPS module or the bypass module for the generation of power signals for supplying power to the broadband communications network.

    摘要翻译： 具有不间断电源的宽带通信网络。 电源有一个输入连接到交流线路电压，另一个输入连接到燃气发电机。 电源包含一个不间断电源模块，其具有受控铁磁共振变压器和电池。 电源还包含具有受控铁磁谐振变压器的旁路模块。 提供开关以允许任一输入端连接到UPS模块或旁路模块，用于产生用于向宽带通信网络供电的功率信号。

    Mapping of bit streams into MPEG frames
    9.
    发明授权
    Mapping of bit streams into MPEG frames 有权
    将比特流映射到MPEG帧中

    公开(公告)号：US07729379B2

    公开(公告)日：2010-06-01

    申请号：US10245032

    申请日：2002-09-17

    申请人： Donald C. Sorenson ,  Richard J. Futch

    发明人： Donald C. Sorenson ,  Richard J. Futch

    IPC分类号： H04J3/24

    CPC分类号： H04N21/4382 ,  H04J4/00 ,  H04L7/041 ,  H04L12/2801 ,  H04L27/2657 ,  H04L29/06027 ,  H04L65/1016 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/2362 ,  H04N21/2365 ,  H04N21/2383 ,  H04N21/4305 ,  H04N21/437 ,  H04N21/6118 ,  H04N21/6168

    摘要： An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Each downstream data flow is fragmented into individual octets that are multiplexed into MPEG packets. An MPEG packet may carry the octets for a plurality of individual data flows. Furthermore, the MPEG packets may be frequency-division multiplexed across and may be contemporaneously communicated over a plurality of frequency channels. Also, the octets from a data flow do not necessarily have to use consecutive octets in an MPEG packet. Instead, consecutive octets in an MPEG packet may carry information for two different data flows. Thus, in an MPEG packet there may be intervening octets that might be allocated to other data flows between the octets of an ethernet frame or other type of data from one data flow. In addition, the data flows carried in MPEG packets may support one or a plurality of client devices. Therefore, an MPEG packet may be used to time-division multiplex multiple data flows to one or a plurality of client devices.

    摘要翻译： 用于通过频分复用（FDM）信道提供高速接入的架构允许通过有线传输网络或其它形式的FDM传输传输以太网帧和/或其他数据。 该架构涉及下游和上游FDM复用技术，以允许跨多个频率信道同时进行并行通信。 每个下游数据流被分段成单个八位字节，被复用成MPEG数据包。 MPEG分组可携带多个单独数据流的八比特组。 此外，MPEG分组可以跨越频分复用并且可以在多个频率信道上同时传送。 此外，来自数据流的八位字节不一定必须在MPEG分组中使用连续的八位字节。 相反，MPEG分组中的连续八位字节可以携带两个不同数据流的信息。 因此，在MPEG分组中，可能存在可能被分配给来自一个数据流的以太网帧的八位字节或其他类型的数据之间的其他数据流的中间八位字节。 此外，MPEG分组中携带的数据流可以支持一个或多个客户端设备。 因此，可以使用MPEG分组来将多个数据流时分复用到一个或多个客户端设备。

    Systems and methods for integrating telephone and security devices
    10.
    发明授权
    Systems and methods for integrating telephone and security devices 失效
    电话和安全设备集成的系统和方法

    公开(公告)号：US5799062A

    公开(公告)日：1998-08-25

    申请号：US813912

    申请日：1997-03-07

    申请人： Sal Lazzara ,  Donald C. Sorenson

    发明人： Sal Lazzara ,  Donald C. Sorenson

    IPC分类号： H04M11/04

    CPC分类号： H04M11/04

    摘要： A system or method for interconnecting a security system with a telephone system. The system comprises one or more lockout modules that are connected between non-priority telephone devices and a telephone line. A security panel is directly connected to the telephone line. The lockout modules comprise a switch means for disconnecting the telephone device attached thereto from the telephone line when the security panel connects to the telephone line. The lockout modules further comprise a latch device that gives the first non-priority telephone device to connect to the line exclusive use of the line against other non-priority telephone devices. The lockout module further comprises a circuit that inhibits the reconnection of the telephone devices to the line to allow the security panel to recover a high and dry telephone line. The lockout module may be modified to include a switch that allows other non-priority telephone devices to share the line.

    摘要翻译： 一种用于将安全系统与电话系统互连的系统或方法。 该系统包括连接在非优先电话设备和电话线之间的一个或多个锁定模块。 安全面板直接连接到电话线。 锁定模块包括开关装置，用于当安全面板连接到电话线时，将连接到其上的电话装置从电话线断开。 锁定模块还包括闩锁装置，该闩锁装置给予第一非优先级电话装置连接到针对其他非优先电话装置的线路专用线路。 锁定模块还包括阻止电话设备重新连接到线路以允许安全面板恢复高且干燥的电话线路的电路。 锁定模块可以被修改为包括允许其他非优先级电话设备共享线路的开关。