公开(公告)号：US07953125B2

公开(公告)日：2011-05-31

申请号：US12500483

申请日：2009-07-09

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04J99/00

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L27/3416 ,  H04M3/005 ,  H04M3/08 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6118 ,  H04N21/6168

摘要： A Cable Modem Termination System (CMTS) is partitioned into Line Cards, I/O Cards, and a midplane to provide enhanced Reliability, Availability, and Serviceability. Each I/O Card provides a cabling interface for coupling an assigned Line Card to other portions of a Hybrid-Fiber-Coax Network. A plurality of RF signals is coupled via connectors between each Line Card and a corresponding I/O Card, via the midplane. This permits a Line Card to be removed for servicing without requiring recabling of the corresponding I/O Card. Preferably, a rectangular-multi-pin collinear connector-cascade (Line Card jack, midplane double-plug, and I/O Card jack) is used to couple the plurality of RF signals. The connector-cascade is configured with protective RF ground pins adjacent and surrounding each of a plurality of RF signal pins. This approach permits each Line Card to be removed or inserted in a single action, without attention to individual RF interconnects, yet meets all system RF requirements while using relatively inexpensive connectors. The I/O Cards preferably include a distributed backup bus that permits one of the Line Cards in the CMTS to serve as a designated backup. The backup bus enables assignment of the designated backup Line Card to the I/O Card associated with a failing Line Card, without requiring recabling of any I/O Card. In conjunction with a signal processing architecture that permits dynamically programmable channel assignments, the backup bus facilitates rapid and fully automated failover. The Line Cards are preferably further partitioned into easily replaceable sections, including IF-to-RF and signal processing modules.

摘要翻译： 有线调制解调器终端系统（CMTS）被分成线卡，I / O卡和中间板，以提供增强的可靠性，可用性和可维护性。 每个I / O卡提供一个电缆接口，用于将指定的线路卡耦合到混合光纤同轴网络的其他部分。 多个RF信号经由中间平面经由每个线路卡和对应的I / O卡之间的连接器耦合。 这允许线路卡被拆除以进行维修，而不需要重新配置相应的I / O卡。 优选地，使用矩形多引脚共线连接器级联（线卡插孔，中平面双插头和I / O卡插孔）来耦合多个RF信号。 连接器级联配置有与多个RF信号引脚相邻并且围绕多个RF信号引脚中的每一个的保护RF接地引脚。 这种方法允许每个线路卡在单个动作中被移除或插入，而不需要注意个别的射频互连，而在使用相对便宜的连接器的同时满足所有系统RF要求。 I / O卡优选地包括分布式备用总线，其允许CMTS中的线路卡之一用作指定的备份。 备用总线可以将指定的备用线路卡分配给与故障线路卡相关的I / O卡，而无需重新启动任何I / O卡。 结合允许动态可编程通道分配的信号处理架构，备用总线便于快速和全自动故障切换。 线卡最好进一步划分成易于更换的部分，包括IF到RF和信号处理模块。

公开(公告)号：US06993016B1

公开(公告)日：2006-01-31

申请号：US09715992

申请日：2000-11-16

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith

IPC分类号： H04L12/66

CPC分类号： H04L12/2856 ,  H04L12/2801 ,  H04L12/287 ,  H04L27/3416 ,  H04N7/10

摘要： Methods and apparatus are provided for tunneling (transparently transmitting) over a packet network, from a source to a destination, the spectrum of one or more bandpass channels individually selected from a larger spectrum at the source. Each channel is selected, translated to baseband (using sampling techniques), digitized, framed, merged with other digital services, transmitted (along with associated attribute information) using packet techniques, and later reconstructed. The present invention provides a selective and efficient use of available bandwidth, in that it is not necessary to transmit the entire spectrum, when only one or few portions of the spectrum are desired. This in turn, reduces bandwidth requirements all along the transmission path and at the source and destination. The reduced bandwidth requirements have associated reductions in power and costs.

摘要翻译： 提供了方法和装置，用于通过分组网络从源到目的地隧道（透明地传输）一个或多个从源的较大频谱中选择的一个或多个带通信道的频谱。 选择每个通道，使用数据包技术将其转换为基带（使用采样技术），数字化，成帧，与其他数字业务合并，以及相关的属性信息（以及相关的属性信息），后来重构。 本发明提供了对可用带宽的选择性和有效的使用，因为当仅需要频谱的一个或几个部分时，不需要发送整个频谱。 这反过来又降低了传输路径以及源和目的地的带宽要求。 降低带宽要求已经降低了功率和成本。

公开(公告)号：US20070050835A1

公开(公告)日：2007-03-01

申请号：US11553882

申请日：2006-10-27

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04N7/173

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L12/2898 ,  H04L27/3416 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6168

摘要： Enhanced Cable Modem Termination System (CMTS) functionality, including programmable digital domain modulators and demodulators for dynamic channel assignment, is incorporated into Fiber Nodes (FNs) or mini Fiber Nodes (mFNs), yielding enhanced Fiber Nodes (eFNs). These eFns distribute CMTS functionality deep into Hybrid-Fiber-Coax Networks (HFCN) rather than centralizing the CMTS functions within a single location. Moving the cable modem terminations closer to the subscribers shortens the analog RF paths required to support cable modems. Communication of both subscriber data and CMTS control data is performed over Ethernet-compatible packet networks between the field-based CMTSs and an upstream facility (e.g., the Head End), which includes an Internet gateway. Packet data for multiple subscriber cable modems is easily compressed and merged over common network paths, reducing cabling plant complexity and increasing bandwidth utilization. This approach dramatically reduces the infrastructure cost per cable modem. Distributing CMTS functionality among multiple eFNs also reduces demands on already stretched resources at the Head End for space, power, and HVAC. For HFCN channels containing signals with modulation or encoding schemes that are unknown or best processed upstream, the invention also provides for tunneling their spectrum over the same packet network as used for the cable modem data. The channels to he tunneled are isolated using digital receivers, translated to baseband, their data framed, merged with cable modem subscriber data, and transmitted over the packet network. Upstream, the framed channel data is parsed and the original channel spectrum reconstructed to permit information recovery.

摘要翻译： 增强的电缆调制解调器终端系统（CMTS）功能，包括用于动态信道分配的可编程数字域调制器和解调器，被并入到光纤节点（FN）或微型光纤节点（mFN）中，产生增强的光纤节点（eFN）。 这些eFns将CMTS功能深入到混合光纤同轴网络（HFCN）中，而不是将CMTS功能集中在单个位置。 将电缆调制解调器端子移动到更靠近用户的位置缩短支持电缆调制解调器所需的模拟RF路径。 用户数据和CMTS控制数据的通信在基于现场的CMTS和包括因特网网关的上游设施（例如，头端）之间的以太网兼容分组网络上执行。 多个用户电缆调制解调器的数据包数据可以通过公共网络路径轻松压缩和合并，从而降低布线工厂的复杂性并增加带宽利用率。 这种方法大大降低了每个电缆调制解调器的基础架构成本。 在多个eFN之间分配CMTS功能还减少了前端对空间，电力和暖通空调的已经拉伸的资源的需求。 对于包含在上游未知或最佳处理的调制或编码方案的信号的HFCN信道，本发明还提供了将它们的频谱在与用于电缆调制解调器数据相同的分组网络上隧道化。 他使用数字接收机隔离通道，将其转换为基带，数据框架，与电缆调制解调器用户数据合并，并通过分组网络传输。 上行，对帧通道数据进行解析，并重建原始信道频谱以允许信息恢复。

公开(公告)号：US07623537B2

公开(公告)日：2009-11-24

申请号：US11425612

申请日：2006-06-21

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04L12/28 ,  H04L12/56 ,  H05K5/00

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L27/3416 ,  H04M3/005 ,  H04M3/08 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6118 ,  H04N21/6168

摘要： A network device and system are provided. The network device may include a chassis configured to receive a line card and an input/output (I/O) card that operatively connects to a network via cabling. The chassis may include a bus structure. The bus structure may include an I/O interface to couple to a chassis interface of the I/O card, and a line card interface to couple to a chassis interface of the line card using a connector away that includes at least one RF conductor which may be associated with a set of connectors configured to shield the at least one RF conductor.

摘要翻译： 提供网络设备和系统。 网络设备可以包括被配置为接收线卡和经由布线操作地连接到网络的输入/输出（I / O）卡的机箱。 底盘可以包括总线结构。 总线结构可以包括耦合到I / O卡的机箱接口的I / O接口，以及线卡接口，以使用包括至少一个RF导体的至少一个RF导体来耦合到线路卡的机架接口，该连接器包括至少一个RF导体， 可以与被配置为屏蔽至少一个RF导体的一组连接器相关联。

公开(公告)号：US07149223B2

公开(公告)日：2006-12-12

申请号：US10033378

申请日：2001-10-24

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04N7/173 ,  H04B1/38

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L12/2898 ,  H04L27/3416 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6168

摘要： Enhanced Cable Modem Termination System (CMTS) functionality, including programmable digital domain modulators and demodulators for dynamic channel assignment, is incorporated into Fiber Nodes (FNs) or mini Fiber Nodes (mFNs), yielding enhanced Fiber Nodes (eFNs). These eFns distribute CMTS functionality deep into Hybrid-Fiber-Coax Networks (HFCN) rather than centralizing the CMTS functions within a single location. Moving the cable modem terminations closer to the subscribers shortens the analog RF paths required to support cable modems. Communication of both subscriber data and CMTS control data is performed over Ethernet-compatible packet networks between the field-based CMTSs and an upstream facility (e.g., the Head End), which includes an Internet gateway. Packet data for multiple subscriber cable modems is easily compressed and merged over common network paths, reducing cabling plant complexity and increasing bandwidth utilization. This approach dramatically reduces the infrastructure cost per cable modem. Distributing CMTS functionality among multiple eFNs also reduces demands on already stretched resources at the Head End for space, power, and HVAC. For HFCN channels containing signals with modulation or encoding schemes that are unknown or best processed upstream, the invention also provides for tunneling their spectrum over the same packet network as used for the cable modem data. The channels to be tunneled are isolated using digital receivers, translated to baseband, their data framed, merged with cable modem subscriber data, and transmitted over the packet network. Upstream, the framed channel data is parsed and the original channel spectrum reconstructed to permit information recovery.

公开(公告)号：US08270419B2

公开(公告)日：2012-09-18

申请号：US12576958

申请日：2009-10-09

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04L12/56 ,  H04N7/00

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L12/2898 ,  H04L27/3416 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6168

摘要： A fiber node may include a cable modem termination system (CMTS) that includes a first receiver to receive first signals from a plurality of cable modems over a plurality of upstream channels, and extract data from the first signals; a second receiver to receive second signals, the second signals being in a different format than the first signals; and a processor, connected to the first receiver and the second receiver, to receive the extracted data from the first receiver, receive the second signals from the second receiver, compress the extracted data and the second signals, merge the extracted data and the second signals, and transmit, to an upstream facility, the merged extracted data and the second signals over a common network path.

摘要翻译： 光纤节点可以包括电缆调制解调器终端系统（CMTS），该电缆调制解调器终端系统（CMTS）包括第一接收器，用于通过多个上行信道从多个电缆调制解调器接收第一信号，并从第一信号中提取数据; 第二接收器，用于接收第二信号，所述第二信号的格式与所述第一信号不同; 以及连接到第一接收器和第二接收器的处理器，用于从第一接收器接收提取的数据，从第二接收器接收第二信号，压缩提取的数据和第二信号，合并提取的数据和第二信号 并且通过公共网络路径向上游设施发送合并的提取数据和第二信号。

公开(公告)号：US07623532B2

公开(公告)日：2009-11-24

申请号：US11553882

申请日：2006-10-27

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04L12/56 ,  H04N7/00

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L12/2898 ,  H04L27/3416 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6168

摘要： Enhanced Cable Modem Termination System (CMTS) functionality, including programmable digital domain modulators and demodulators for dynamic channel assignment, is incorporated into Fiber Nodes (FNs) or mini Fiber Nodes (mFNs), yielding enhanced Fiber Nodes (eFNs). These eFns distribute CMTS functionality deep into Hybrid-Fiber-Coax Networks (HFCN) rather than centralizing the CMTS functions within a single location. Moving the cable modem terminations closer to the subscribers shortens the analog RF paths required to support cable modems. Communication of both subscriber data and CMTS control data is performed over Ethernet-compatible packet networks between the field-based CMTSs and an upstream facility (e.g., the Head End), which includes an Internet gateway. Packet data for multiple subscriber cable modems is easily compressed and merged over common network paths, reducing cabling plant complexity and increasing bandwidth utilization. This approach dramatically reduces the infrastructure cost per cable modem. Distributing CMTS functionality among multiple eFNs also reduces demands on already stretched resources at the Head End for space, power, and HVAC. For HFCN channels containing signals with modulation or encoding schemes that are unknown or best processed upstream, the invention also provides for tunneling their spectrum over the same packet network as used for the cable modem data. The channels to he tunneled are isolated using digital receivers, translated to baseband, their data framed, merged with cable modem subscriber data, and transmitted over the packet network. Upstream, the framed channel data is parsed and the original channel spectrum reconstructed to permit information recovery.

摘要翻译： 增强的电缆调制解调器终端系统（CMTS）功能，包括用于动态信道分配的可编程数字域调制器和解调器，被并入到光纤节点（FN）或微型光纤节点（mFN）中，产生增强的光纤节点（eFN）。 这些eFns将CMTS功能深入到混合光纤同轴网络（HFCN）中，而不是将CMTS功能集中在单个位置。 将电缆调制解调器端子移动到更靠近用户的位置缩短支持电缆调制解调器所需的模拟RF路径。 用户数据和CMTS控制数据的通信在基于现场的CMTS和包括因特网网关的上游设施（例如，头端）之间的以太网兼容分组网络上执行。 多个用户电缆调制解调器的数据包数据可以通过公共网络路径轻松压缩和合并，从而降低布线工厂的复杂性并增加带宽利用率。 这种方法大大降低了每个电缆调制解调器的基础架构成本。 在多个eFN之间分配CMTS功能还减少了前端对空间，电力和暖通空调的已经拉伸的资源的需求。 对于包含在上游未知或最佳处理的调制或编码方案的信号的HFCN信道，本发明还提供了将它们的频谱在与用于电缆调制解调器数据相同的分组网络上隧道化。 他使用数字接收机隔离通道，将其转换为基带，数据框架，与电缆调制解调器用户数据合并，并通过分组网络传输。 上行，对帧通道数据进行解析，并重建原始信道频谱以允许信息恢复。

公开(公告)号：US07099340B2

公开(公告)日：2006-08-29

申请号：US10033383

申请日：2001-10-24

申请人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

发明人： Valentino Liva ,  Alok Sharma ,  Lance Smith ,  James Yee

IPC分类号： H04L12/28 ,  H04L12/56 ,  H05K5/00 ,  H05K7/00

CPC分类号： H04L12/2801 ,  H04B10/272 ,  H04J1/05 ,  H04L12/2856 ,  H04L12/287 ,  H04L27/3416 ,  H04M3/005 ,  H04M3/08 ,  H04N7/10 ,  H04N7/173 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/6118 ,  H04N21/6168

摘要： A Cable Modem Termination System (CMTS) is partitioned into Line Cards, I/O Cards, and a midplane to provide enhanced Reliability, Availability, and Serviceability. Each I/O Card provides a cabling interface for coupling an assigned Line Card to other portions of a Hybrid-Fiber-Coax Network. A plurality of RF signals is coupled via connectors between each Line Card and a corresponding I/O Card, via the midplane. This permits a Line Card to be removed for servicing without requiring recabling of the corresponding I/O Card. Preferably, a rectangular-multi-pin collinear connector-cascade (Line Card jack, midplane double-plug, and I/O Card jack) is used to couple the plurality of RF signals. The connector-cascade is configured with protective RF ground pins adjacent and surrounding each of a plurality of RF signal pins. This approach permits each Line Card to be removed or inserted in a single action, without attention to individual RF interconnects, yet meets all system RF requirements while using relatively inexpensive connectors. The I/O Cards preferably include a distributed backup bus that permits one of the Line Cards in the CMTS to serve as a designated backup. The backup bus enables assignment of the designated backup Line Card to the I/O Card associated with a failing Line Card, without requiring recabling of any I/O Card. In conjunction with a signal processing architecture that permits dynamically programmable channel assignments, the backup bus facilitates rapid and fully automated failover. The Line Cards are preferably further partitioned into easily replaceable sections, including IF-to-RF and signal processing modules.

公开(公告)号：US07003690B2

公开(公告)日：2006-02-21

申请号：US10099470

申请日：2002-03-12

申请人： Valentino Liva ,  Isaac Wingfield

发明人： Valentino Liva ,  Isaac Wingfield

IPC分类号： G06F11/00

CPC分类号： H04M3/005 ,  H04M3/08

摘要： A system for redundancy switching of line cards in a communications system. When a line card needs to be replaced or serviced or becomes inoperable, signal traffic is switched to and through a redundant line card. This is achieved by implementing a switching fabric on I/O cards, where the I/O cards carry signal traffic to and from line cards. The switching fabric enables traffic to and from an I/O card servicing the line card to be replaced to instead service the redundant line card.

摘要翻译： 一种用于通信系统中线卡冗余切换的系统。 当线卡需要更换或维修或变得不可操作时，信号流量将切换到并通过冗余线路卡。 这是通过在I / O卡上实现交换结构来实现的，其中I / O卡将线路卡上的信号流量传送到线卡。 交换结构使得能够更换服务于线路卡的I / O卡的流量替代为冗余线路卡服务。