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1. 发明授权

US08468572B2 Distributing digital video content to multiple end-user devices 有权
标题翻译：将数字视频内容分发到多个最终用户设备
公开(公告)号：US08468572B2
公开(公告)日：2013-06-18
申请号：US12055772
申请日：2008-03-26
申请人： Xiaomei Liu , Alon Bernstein , John Pickens
发明人： Xiaomei Liu , Alon Bernstein , John Pickens
IPC分类号： H04N7/58 , H04N7/24 , H04L12/56
CPC分类号： H04L12/2801 , H04L47/10 , H04L47/11 , H04L47/2416 , H04L47/283 , H04L47/41 , H04L47/50 , H04L47/56 , H04L47/6215 , H04L47/70 , H04L47/722 , H04L47/745 , H04L47/788 , H04L47/805 , H04L49/90 , H04L49/9047 , H04N21/23608 , H04N21/4344 , H04N21/6118 , H04N21/64322 , H04N21/64792
摘要： A technique for managing the distribution of digital video content to multiple end-user devices is disclosed. The technique involves statistically multiplexing multiple VBR encoded video streams into an access channel, such as a data over cable service interface specifications (DOCSIS) bonded group, and utilizing quality of service capabilities of an edge device, such as a cable modem termination system (CMTS) or an edge quadrature amplitude modulation (QAM) device, to buffer and schedule IP packets, which carry the VBR encoded video streams, so that packets are not dropped during periods of congestion. Utilizing the quality of service capabilities of an edge device makes it possible to statistically multiplex VBR encoded video streams in a narrowcast application such as Video on Demand (VOD) or Switched Digital Video (SDV) while eliminating the need for process intensive transrating/transcoding operations.
摘要翻译：公开了一种用于管理数字视频内容到多个终端用户设备的分发的技术。该技术涉及将多个VBR编码视频流统计复用为接入信道，诸如通过电缆业务接口规范（DOCSIS）绑定组的数据，并且利用诸如电缆调制解调器终端系统（CMTS）之类的边缘设备的服务质量）或边缘正交幅度调制（QAM）设备，以缓冲和调度携带VBR编码视频流的IP分组，使得在拥塞期间分组不被丢弃。利用边缘设备的服务质量使得可以在诸如视频点播（VOD）或交换数字视频（SDV）之类的窄播应用中对VBR编码视频流进行统计复用，同时消除对进程密集型转换/转码操作的需要。

2. 发明授权

US08397267B2 Hi-split upstream design for DOCSIS 有权
标题翻译： DOCSIS的高分裂上游设计
公开(公告)号：US08397267B2
公开(公告)日：2013-03-12
申请号：US12835199
申请日：2010-07-13
申请人： John Chapman , Alon Bernstein
发明人： John Chapman , Alon Bernstein
IPC分类号： H04N7/173
CPC分类号： H04L12/2801 , H04L12/2861 , H04L12/287
摘要： In one embodiment, upstream transmission throughput in a cable network is markedly increased by moving up the US/DS frequency split by approximately an order of magnitude to a few hundred MHz. Additional transceivers (carriers) may be implemented to take advantage of the broader spectrum. A block of multiple upstream carriers (FIG. 2A) are associated to form a single logical upstream providing a high-bandwidth, in-order packet stream. The carriers have a common start time (704), pursuant to a single MAP message, and operation synchronously to transmit an upstream transmission frame (250). They may use OFDM or discrete carriers. A convergence layer (350) assembles the data from all of the upstream channels (320,322,324) for presentation to the MAC layer logic (308,310) as a single, serial, high-speed transmission from the CM.
摘要翻译：在一个实施例中，通过将US / DS频率分频大约一个数量级上升到几百MHz来显着增加有线网络中的上行传输吞吐量。可以实现附加收发器（载波）以利用更广泛的频谱。多个上行载波（图2A）的块被相关联以形成提供高带宽的按顺序分组流的单个逻辑上行链路。载波具有根据单个MAP消息的公共开始时间（704），并且同步地操作以发送上行传输帧（250）。它们可以使用OFDM或离散载波。汇聚层（350）将来自所有上游信道（320,322,324）的数据组合成用于呈现到MAC层逻辑（308,310），作为来自CM的单个串行高速传输。

3. 发明授权

US08111711B2 Multi-channel ranging for a cable modem 有权
标题翻译：电缆调制解调器的多通道测距
公开(公告)号：US08111711B2
公开(公告)日：2012-02-07
申请号：US12334392
申请日：2008-12-12
申请人： DeFu Li , Pawel Sowinski , Robert Goguen , Tong Liu , Alon Bernstein
发明人： DeFu Li , Pawel Sowinski , Robert Goguen , Tong Liu , Alon Bernstein
IPC分类号： H04L7/04
CPC分类号： H04N21/6543 , H04N21/4263 , H04N21/4381 , H04N21/4383 , H04N21/6118 , H04N21/6125 , H04N21/6583
摘要： In one example, a Cable Modem Termination System (CMTS) sends first bandwidth allocation messages to a first upstream transmit interface on a cable modem and send second bandwidth allocation messages to a second upstream transmit interface on the cable modem. The bandwidth allocation messages indicate transmit windows for the cable modem to range over the interfaces. The transmit windows included in the first bandwidth allocation messages are spaced based on receipt of ranging requests from the second upstream transmit interface, and the transmit windows included in the second bandwidth allocation messages are spaced based on receipt of ranging requests from the first upstream transmit interface.
摘要翻译：在一个示例中，有线调制解调器终端系统（CMTS）将第一带宽分配消息发送到有线调制解调器上的第一上行传输接口，并向电缆调制解调器上的第二上行传输接口发送第二带宽分配消息。带宽分配消息指示电缆调制解调器在接口上范围的传输窗口。包括在第一带宽分配消息中的发送窗口基于来自第二上行发送接口的测距请求的接收而间隔开，并且包括在第二带宽分配消息中的发送窗口基于来自第一上行发送接口的测距请求的接收而间隔开。

4. 发明申请

US20100083330A1 SCHEDULING FOR RF OVER FIBER OPTIC CABLE [RFoG] 有权
标题翻译： RF OVER光纤电缆调度[RFoG]
公开(公告)号：US20100083330A1
公开(公告)日：2010-04-01
申请号：US12240684
申请日：2008-09-29
申请人： Alon Bernstein , John Skrobko , John Torrence Chapman
发明人： Alon Bernstein , John Skrobko , John Torrence Chapman
IPC分类号： H04N7/22
CPC分类号： H04L47/15 , H04N7/17309 , H04N7/22 , H04N21/6118 , H04N21/6168
摘要： A method for use in an RFoG cable network calls for allocating upstream bandwidth to CM devices, wherein allocating bandwidth includes selecting a start time and allocating respective time slots relative to the selected start time to at least one of the requesting CM devices; and further, allocating the same timeslots over multiple selected upstream channels, thereby aligning upstream transmissions from the requesting CMs across the selected upstream channels. Several embodiments are disclosed to enable DOCSIS 3.0 type scheduling over an RFoG network.
摘要翻译：在RFoG电缆网络中使用的方法要求向CM设备分配上行带宽，其中，分配带宽包括选择开始时间并相对于所选择的开始时间将相应的时隙分配给所请求的CM设备中的至少一个; 并且进一步，在多个所选择的上行信道上分配相同的时隙，由此在所选择的上游信道上对准来自请求CM的上行传输。公开了若干实施例以通过RFoG网络实现DOCSIS 3.0类型调度。

5. 发明申请

US20100061234A1 QOS on Bonded Channels of a Shared Access Cable Network 有权
标题翻译：共享接入有线网络保密信道上的QOS
公开(公告)号：US20100061234A1
公开(公告)日：2010-03-11
申请号：US12404219
申请日：2009-03-13
申请人： Prashant Pai , Anna Charny , Alon Bernstein
发明人： Prashant Pai , Anna Charny , Alon Bernstein
IPC分类号： H04L12/24
CPC分类号： H04L47/41 , H04L12/2801 , H04L47/10 , H04L47/22 , H04L47/60 , Y02D50/30
摘要： Various techniques are disclosed for managing traffic flow for transport over a plurality of communication channels of a shared access cable network. According to various embodiments, one or more devices of the cable network (such as, for example, a Cable Modem Termination System (CMTS)), may be operable to implement at least a portion of the traffic flow management techniques. In at least one embodiment, one or more aspects of the traffic flow management techniques disclosed herein may be used for performing real-time shaping of traffic flows across multiple different channels of a DOCSIS channel bonding group. In some embodiments, various different traffic shaping and/or traffic scheduling techniques may be employed (e.g., in DOCSIS 3.0 compatible cable networks) to reduce and/or mitigate issues which, for example, may arise as a result of an inability to represent traffic schedulers as tree-based hierarchies. Other aspects are disclosed for implementing quality of service (QoS) procedures on shared access network(s), such as for example hybrid fiber/coaxial (HFC) cable networks.
摘要翻译：公开了用于管理用于在共享接入电缆网络的多个通信信道上传输的业务流的各种技术。根据各种实施例，电缆网络（例如，电缆调制解调器终端系统（CMTS））的一个或多个设备可以用于实现业务流管理技术的至少一部分。在至少一个实施例中，本文公开的业务流管理技术的一个或多个方面可用于对DOCSIS信道绑定组的多个不同信道执行业务流的实时整形。在一些实施例中，可以采用各种不同的流量整形和/或业务调度技术（例如，在DOCSIS 3.0兼容的有线网络中）来减少和/或减轻由于不能表示流量而导致的问题调度器作为基于树的层次结构。公开了用于实现共享接入网络（例如混合光纤/同轴（HFC）有线网络）上的服务质量（QoS）程序的其它方面。

6. 发明申请

US20070097864A1 Data communication flow control 审中-公开
标题翻译：数据通信流量控制
公开(公告)号：US20070097864A1
公开(公告)日：2007-05-03
申请号：US11263871
申请日：2005-11-01
申请人： Alon Bernstein
发明人： Alon Bernstein
IPC分类号： H04L12/26
CPC分类号： H04L47/10 , H04L43/0817 , H04L43/16 , H04L47/215 , H04L47/25 , H04L47/263 , H04L47/29 , Y02D50/10
摘要： A method and system to manage data traffic includes monitoring a characteristic of input data to a buffer located, for example a buffer located in a communication line card. The transmission of the input data is maintained while reducing an effective transmission rate of the input data based upon either a data rate of the input data, or a volume of the input data accumulated in the buffer. Embodiments provide granular control and avoid disruptive turning on and off of the data communication.
摘要翻译：管理数据流量的方法和系统包括将输入数据的特性监视到位于例如位于通信线卡中的缓冲器的缓冲器。维持输入数据的传输，同时基于输入数据的数据速率或累积在缓冲器中的输入数据的体积来减少输入数据的有效传输速率。实施例提供细粒度控制，并避免数据通信的破坏性打开和关闭。

7. 发明申请

US20050265338A1 Downstream remote physical interface for modular cable modem termination system 有权
标题翻译：用于模块化电缆调制解调器终端系统的下行远程物理接口
公开(公告)号：US20050265338A1
公开(公告)日：2005-12-01
申请号：US11134589
申请日：2005-05-17
申请人： John Chapman , Daniel Crocker , Alon Bernstein , Michael Healy , David Fox
发明人： John Chapman , Daniel Crocker , Alon Bernstein , Michael Healy , David Fox
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/2801 , H04L67/00 , H04L69/16 , H04L69/161 , H04L69/164 , H04L2212/00
摘要： A modular Cable Modem Termination System (CMTS) includes a packet shelf operating a Data Over Cable Service Interface Specifications (DOCSIS) Media Access Control (MAC) framer. One or more downstream Physical Interface (PHY) shelves receive DOCSIS data from the packet shelf over a packet switched network and modulate the DOCSIS data for sending on a downstream path of a cable plant. One or more upstream PHY shelves send DOCSIS data received from an upstream path of the cable plant over the packet switched network to the packet shelf. By separating the PHY components from the MAC and from the system software, the PHY components for a Hybrid Fiber Coax (HFC) plant may be replaced with different PHY components for other access technologies such as wireless, Digital Subscriber Lines (DSL), Ethernet-to-the-Home, Fiber-to-the-Home, or fiber Passive Optical Networks (PONs).
摘要翻译：模块化电缆调制解调器终端系统（CMTS）包括操作数据有线业务接口规范（DOCSIS）媒体接入控制（MAC）成帧器的分组机架。一个或多个下行物理接口（PHY）机架通过分组交换网络从分组机架接收DOCSIS数据，并且调制DOCSIS数据以在电缆设备的下游路径上发送。一个或多个上游PHY层架将从电缆设备的上行路径接收的DOCSIS数据通过分组交换网络发送到分组架。通过将PHY组件与MAC和系统软件分离，用于混合光纤同轴电缆（HFC）设备的PHY组件可以用于其他接入技术的不同PHY组件，例如无线，数字用户线（DSL），以太网 - 光纤到户或光纤无源光网络（PON）。

8. 发明申请

US20130322504A1 SYSTEM AND METHOD FOR DISCOVERING AND VERIFYING A HYBRID FIBER-COAXIAL TOPOLOGY IN A CABLE NETWORK ENVIRONMENT 有权
公开(公告)号：US20130322504A1
公开(公告)日：2013-12-05
申请号：US13487302
申请日：2012-06-04
申请人： Rajiv Asati , Alon Bernstein , John T. Chapman
发明人： Rajiv Asati , Alon Bernstein , John T. Chapman
IPC分类号： H04B3/46
CPC分类号： H04L41/12 , H04B3/46 , H04B10/27 , H04L12/2801 , H04L41/0853
摘要： A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology.

9. 发明申请

US20130114480A1 Time Domain Duplex Between CMTS and Cable Modems 有权
标题翻译： CMTS和电缆调制解调器之间的时域双工
公开(公告)号：US20130114480A1
公开(公告)日：2013-05-09
申请号：US13288177
申请日：2011-11-03
申请人： John T. Chapman , Alon Bernstein , Leo Montreuil
发明人： John T. Chapman , Alon Bernstein , Leo Montreuil
IPC分类号： H04L5/14 , H04B1/44
CPC分类号： H04L5/1469 , H04H20/79 , H04L5/0007 , H04N21/2221 , H04N21/2408 , H04N21/42676 , H04N21/6168 , H04N21/64322
摘要： A time domain duplex cable system includes a mechanism to change the communication direction of spectrum used in a cable plant including a Cable Modem Termination System (CMTS), a Fiber Node and a plurality of cable modems in communication with the CMTS via the Fiber Node. Active devices, e.g., directional amplifiers switch the communication direction of the cable plant in response to timing information received from the CMTS. To avoid collisions of downstream and upstream packets, a guard time is determined and used in connection with generating the timing information. In one embodiment, the timing information is transmitted in one or more Data Over Cable Service Interface Specifications (DOCSIS) Media Access Protocol (MAP) messages transmitted by the CMTS towards the cable modems.
摘要翻译：时域双工电缆系统包括用于改变电缆设备中使用的频谱的通信方向的机制，该电缆设备包括通过光纤节点与CMTS通信的电缆调制解调器终端系统（CMTS），光纤节点和多个电缆调制解调器。有源设备，例如定向放大器，响应于从CMTS接收的定时信息，切换电缆设备的通信方向。为了避免下游和上游分组的冲突，确定保护时间并且与生成定时信息一起使用。在一个实施例中，定时信息在由CMTS向电缆调制解调器发送的一个或多个数据有线服务接口规范（DOCSIS）媒体接入协议（MAP）消息中发送。

10. 发明授权

US08059546B2 Traffic flow scheduling techniques implemented on bonded channels of a shared access cable network 有权
标题翻译：在共享接入电缆网络的绑定信道上实现的业务流调度技术
公开(公告)号：US08059546B2
公开(公告)日：2011-11-15
申请号：US12404224
申请日：2009-03-13
申请人： Prashant Pai , Anna Charny , Alon Bernstein
发明人： Prashant Pai , Anna Charny , Alon Bernstein
IPC分类号： H04L12/26
CPC分类号： H04L47/41 , H04L12/2801 , H04L47/10 , H04L47/22 , H04L47/60 , Y02D50/30
摘要： Various techniques are disclosed for managing traffic flow for transport over a plurality of communication channels of a shared access cable network. According to various embodiments, one or more devices of the cable network (such as, for example, a Cable Modem Termination System (CMTS)), may be operable to implement at least a portion of the traffic flow management techniques. In at least one embodiment, one or more aspects of the traffic flow management techniques disclosed herein may be used for performing real-time shaping of traffic flows across multiple different channels of a DOCSIS channel bonding group. In some embodiments, various different traffic shaping and/or traffic scheduling techniques may be employed (e.g., in DOCSIS 3.0 compatible cable networks) to reduce and/or mitigate issues which, for example, may arise as a result of an inability to represent traffic schedulers as tree-based hierarchies. Other aspects are disclosed for implementing quality of service (QoS) procedures on shared access network(s), such as for example hybrid fiber/coaxial (HFC) cable networks.
摘要翻译：公开了用于管理用于在共享接入电缆网络的多个通信信道上传输的业务流的各种技术。根据各种实施例，电缆网络（例如，电缆调制解调器终端系统（CMTS））的一个或多个设备可以用于实现业务流管理技术的至少一部分。在至少一个实施例中，本文公开的业务流管理技术的一个或多个方面可用于对DOCSIS信道绑定组的多个不同信道执行业务流的实时整形。在一些实施例中，可以采用各种不同的业务整形和/或业务调度技术（例如，在DOCSIS 3.0兼容的有线网络中）来减少和/或减轻由于不能表示流量而导致的问题调度器作为基于树的层次结构。公开了用于实现共享接入网络（例如混合光纤/同轴（HFC）有线网络）上的服务质量（QoS）程序的其它方面。

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