公开(公告)号：US08737256B2

公开(公告)日：2014-05-27

申请号：US13780410

申请日：2013-02-28

申请人： Juniper Networks, Inc.

发明人： Takemasa Takahashi

IPC分类号： H04L12/26

CPC分类号： H04L29/06319 ,  H04L12/5601 ,  H04L65/1066 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5634

摘要： A band control system of the present invention is applicable to a digital subscriber line network in which a first apparatus and a second apparatus situated at a subscriber station and a center, respectively, are interconnected by a metallic cable for interchanging at least a digital data signal with each other. The band control system includes a commanding device included in one of the first and said second apparatuses for monitoring the receipt of ATM (Asynchronous Transfer Mode) cells from the other apparatus and sending, based on the result of monitoring, a band variation command to the other apparatus to thereby cause it to vary a band by using a frequency band not used for signal transfer. A band varying device is included in the other apparatus for receiving the band variation command and varying the band in accordance with the command.

摘要翻译： 本发明的频带控制系统可应用于数字用户线网络，其中分别位于用户站和中心的第一设备和第二设备通过金属电缆互连，用于交换至少数字数据信号 与彼此。 频带控制系统包括包括在第一和第二装置之一中的命令装置，用于监视来自另一装置的ATM（异步传送模式）信元的接收，并且基于监视结果发送到 从而使其通过使用不用于信号传送的频带来改变频带。 带通变换装置包括在用于接收频带变化指令的另一装置中，并根据该命令改变频带。

公开(公告)号：US08396008B2

公开(公告)日：2013-03-12

申请号：US13046241

申请日：2011-03-11

申请人： Takemasa Takahashi

发明人： Takemasa Takahashi

IPC分类号： H04J1/16 ,  H04L12/26

CPC分类号： H04L29/06319 ,  H04L12/5601 ,  H04L65/1066 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5634

摘要： A band control system for a digital subscriber line network in which a first apparatus and a second apparatus situated at a subscriber station and a center, respectively, are interconnected by a cable for interchanging at least a digital data signal with each other. The system may cause one of the first apparatus or the second apparatus to monitor receipt of signals from the other of the first apparatus or the second apparatus; send, based on a result of monitoring, a band variation command to the other apparatus for causing the other apparatus to vary a band by using a frequency band not used for signal transfer; cause the other apparatus to receive the band variation command; and vary the band in accordance with the band variation command.

摘要翻译： 一种用于数字用户线网络的频带控制系统，其中分别位于用户站和中心的第一装置和第二装置通过用于互连至少数字数据信号的电缆互连。 系统可以使第一装置或第二装置中的一个监视来自第一装置或第二装置中的另一个的信号的接收; 基于监视结果向其他设备发送频带变化命令，以使另一装置通过使用不用于信号传送的频带来改变频带; 使其他设备接收频带变化命令; 并根据频带变化指令改变频带。

公开(公告)号：US07940703B2

公开(公告)日：2011-05-10

申请号：US12605741

申请日：2009-10-26

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.

摘要翻译： 公开了一种在混合网络环境中通过混合光纤同轴（HFC）接入网络和ATM广域网互联基于电缆调制解调器的房屋网络来提供具有保证性能的实时多媒体会议业务的技术。 ATM广域网可以分为多个接入网域和一个骨干网域，以提供高效智能的多媒体会议业务。 每个ATM接入网域都有一个电缆调制解调器服务器以及接入多媒体桥服务器。 骨干网域内只有一台中央网络服务器和一台中央多媒体网桥服务器。 位于ATM接入网域中的每个电缆调制解调器服务器保持有关现有呼叫如何使用有线网络带宽的必要信息，并且将根据期望的优先级和性能水平在新的多媒体会议呼叫被启动时被分配。

公开(公告)号：US07831989B1

公开(公告)日：2010-11-09

申请号：US11035678

申请日：2005-01-13

申请人： Steve Calzone ,  Nishith Sinha ,  Terry Lee

发明人： Steve Calzone ,  Nishith Sinha ,  Terry Lee

IPC分类号： H04N7/173 ,  H04L12/54

CPC分类号： H04N7/17318 ,  H04L12/2801 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5664 ,  H04N21/2221 ,  H04N21/23106 ,  H04N21/23109 ,  H04N21/47202 ,  H04N21/6118

摘要： Methods and systems are provided for intelligently managing on-demand content in a cable services system. High demand video programs (e.g., movies, documentaries, mini-series, educational films, and the like) are stored at cable system hubs that service a number of individual cable customers. When a given video program is requested, the requested title is steamed from the hub servicing the requesting customer rather than streaming the requested program from the cable system head end. The video programs cached at the cable system hubs are determined based on attributes associated with individual video programs including time since initial release, association with other programs, association with hub locations, association with current events, and the like.

摘要翻译： 提供了用于智能地管理有线服务系统中的按需内容的方法和系统。 高要求的视频节目（例如，电影，纪录片，迷你系列，教育电影等）被存储在为多个个体电缆客户服务的电缆系统集线器处。 当请求给定的视频节目时，所请求的标题从服务于请求的客户的集线器蒸出，而不是从电缆系统的头端流传送请求的节目。 在电缆系统集线器处高速缓存的视频节目是基于与各个视频节目相关联的属性确定的，这些属性包括从初始发布以来的时间，与其他节目的关联，与集线器位置的关联，与当前事件的关联等。

公开(公告)号：US07623475B1

公开(公告)日：2009-11-24

申请号：US11352843

申请日：2006-02-13

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.

公开(公告)号：US07535888B1

公开(公告)日：2009-05-19

申请号：US10209349

申请日：2002-07-30

申请人： John B. Carlucci ,  Ran Oz

发明人： John B. Carlucci ,  Ran Oz

IPC分类号： H04L12/66

CPC分类号： H04L69/04 ,  H04L29/06027 ,  H04L65/4092 ,  H04L65/607 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5615 ,  H04L2012/5631 ,  H04L2012/5664 ,  H04N7/17318 ,  H04N7/17336 ,  H04N21/218 ,  H04N21/234327 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2368 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/2668 ,  H04N21/4263 ,  H04N21/4305 ,  H04N21/4341 ,  H04N21/4347 ,  H04N21/4351 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/643 ,  H04N21/6547 ,  H04N21/8153 ,  H04N21/8166 ,  H04N21/8173 ,  H04N21/8352 ,  H04Q11/0478 ,  H04W40/02 ,  H04W74/00

摘要： The invention provides a system and method for providing timing information packets to a plurality of digital home communication terminals. The timing information can be utilized for implementing media access schemes. The system includes a timing information packet generator, for generating timing information packets and providing timing information packets to a transmitter; and a transmitter, coupled to the timing packet generator, for transmitting timing information packets to at least a plurality of digital home communication terminals, in response to the at least one frequency. The method includes the steps of: tracking the at least one frequencies; generating timing information packets; and transmitting timing information packets to the digital home communication terminals in response to the at least one frequency. Conveniently, the step of tracking including receiving information transmitted from digital home communication terminals indicative of the at least one frequency.

摘要翻译： 本发明提供了一种用于向多个数字家庭通信终端提供定时信息分组的系统和方法。 定时信息可用于实现媒体接入方案。 该系统包括定时信息分组产生器，用于产生定时信息分组并向发射机提供定时信息分组; 以及耦合到所述定时分组生成器的发射机，用于响应于所述至少一个频率将定时信息分组发送到至少多个数字家庭通信终端。 该方法包括以下步骤：跟踪至少一个频率; 生成定时信息包; 以及响应于所述至少一个频率，向所述数字家庭通信终端发送定时信息分组。 方便地，跟踪步骤包括从指示至少一个频率的数字家庭通信终端发送的接收信息。

公开(公告)号：US20080056130A1

公开(公告)日：2008-03-06

申请号：US11894750

申请日：2007-08-20

申请人： Gautam Desai ,  Subrahmanyam Dravida ,  Satya Gupta ,  Kiran Rege ,  Manas Tandon ,  Ravi Kumar ,  DeQuan Wu

发明人： Gautam Desai ,  Subrahmanyam Dravida ,  Satya Gupta ,  Kiran Rege ,  Manas Tandon ,  Ravi Kumar ,  DeQuan Wu

IPC分类号： G01R31/08

CPC分类号： H04L61/2015 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2859 ,  H04L12/4641 ,  H04L29/12216 ,  H04L41/0803 ,  H04L41/0886 ,  H04L41/12 ,  H04L41/5003 ,  H04L43/12 ,  H04L47/10 ,  H04L47/15 ,  H04L47/20 ,  H04L47/215 ,  H04L47/24 ,  H04L47/2416 ,  H04L47/2425 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2491 ,  H04L47/32 ,  H04L47/50 ,  H04L47/521 ,  H04L47/6225 ,  H04L47/623 ,  H04L47/70 ,  H04L47/724 ,  H04L47/788 ,  H04L47/801 ,  H04L47/805 ,  H04L47/822 ,  H04L47/829 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6402 ,  H04Q3/0045

摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals, or messages, are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. Messages indicative of an end user routing ID (RID) are identified and the information extracted for user with successive messages. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.

摘要翻译： 混合光纤/同轴电缆网络采用用于有线电视的现有电缆设备，并以高于用于有线电视的频率带宽传输数据信号。 由于该电缆厂部署在树型和分支拓扑结构中，数据传输可能会受到噪声，可变传输损耗和频率分散的影响，特别是在上行方向。 此外，由于树和分支拓扑，网络远端的家庭比靠近头端/ ONU的家庭遭受更大的损失。 该系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路来提供可靠，安全的双向宽带接入。 数字信号或消息在智能网络元件处被终止，被切换和重新生成，以便在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。 识别指示最终用户路由ID（RID）的消息，并且为具有连续消息的用户提取信息。 以这种方式，数据链路通过相对短的同轴电缆运行进行，这可以提供比归属和前端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

公开(公告)号：US20070030858A1

公开(公告)日：2007-02-08

申请号：US11492446

申请日：2006-07-25

申请人： Chuanning Chen ,  Wumao Chen ,  Yangbao Jin

发明人： Chuanning Chen ,  Wumao Chen ,  Yangbao Jin

IPC分类号： H04L12/66

CPC分类号： H04L47/2441 ,  H04L12/2801 ,  H04L2012/5606 ,  H04L2012/5665

摘要： A broadband access device comprises a subscriber interface board, a master control board and a backboard, wherein the backboard is configured with a uniform serial bus; the subscriber interface board is configured with an interface unit; and the interface unit is connected to the master control board via the serial bus of backboard. A broadband access method comprises: connecting the master control board and subscriber interface board via a uniform serial bus; transforming the subscriber traffics into serial signal frames by the master control board or the subscriber interface board, and transmitting the serial signal frames to the other board; upon receiving the serial signal frames by the other board, restoring the format of the serial signal frames and transmitting the restored data to corresponding data channel. The present invention achieves broadband access when different access techniques are adopted, simplifies device structure and reduces costs.

摘要翻译： 宽带接入设备包括用户接口板，主控板和背板，其中所述背板配置有统一的串行总线; 用户接口板配置有接口单元; 并且接口单元通过背板的串行总线连接到主控板。 宽带接入方式包括：通过统一的串行总线连接主控板和用户接口板; 通过主控板或用户接口板将用户业务转换为串行信号帧，并将串行信号帧发送到另一个板; 在通过另一板接收到串行信号帧之后，恢复串行信号帧的格式并将恢复的数据发送到相应的数据信道。 本发明在采用不同的接入技术时实现了宽带接入，简化了设备结构，降低了成本。

公开(公告)号：US07113502B2

公开(公告)日：2006-09-26

申请号：US09938445

申请日：2001-08-23

申请人： Ran Oz ,  Nery Strasman ,  Amir Bassan-Eskenazi ,  Andrey Yruski ,  Oded Golan

发明人： Ran Oz ,  Nery Strasman ,  Amir Bassan-Eskenazi ,  Andrey Yruski ,  Oded Golan

IPC分类号： H04L12/66

CPC分类号： H04L69/04 ,  H04L29/06027 ,  H04L65/4092 ,  H04L65/607 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5615 ,  H04L2012/5631 ,  H04L2012/5664 ,  H04N7/17318 ,  H04N7/17336 ,  H04N21/218 ,  H04N21/234327 ,  H04N21/2365 ,  H04N21/23655 ,  H04N21/2368 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/2668 ,  H04N21/4263 ,  H04N21/4341 ,  H04N21/4347 ,  H04N21/4351 ,  H04N21/4516 ,  H04N21/454 ,  H04N21/643 ,  H04N21/6547 ,  H04N21/8153 ,  H04N21/8166 ,  H04N21/8173 ,  H04N21/8352 ,  H04Q11/0478 ,  H04W40/02

摘要： Broadband multimedia system including a communication bus, a router, connected to the communication bus and further between a plurality of media sources and a plurality of network transmitters, a session manager, connected to communication bus, where the session manager provides routing instructions to the router, for directing data received from the media sources to the network transmitters for transmitting over a broadband network.

公开(公告)号：US07046637B2

公开(公告)日：2006-05-16

申请号：US09880027

申请日：2001-06-14

申请人： Radhika R. Roy

发明人： Radhika R. Roy

IPC分类号： H04L12/16

CPC分类号： H04L12/2801 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5638 ,  H04L2012/5642 ,  H04Q11/0478

摘要： A technique for providing real-time multimedia conferencing services with guaranteed performance, in a hybrid networking environment, by interconnecting cable modem-based premises networks via hybrid fiber coaxial (HFC) access networks and an ATM wide area network is disclosed. The ATM wide area network may be divided into a plurality of access network domains and one backbone network domain to provide efficient and intelligent multimedia conferencing services. Each ATM access network domain has one cable modem server as well as access multimedia bridge server. There is only one central network server and one central multimedia bridge server within the backbone network domain. Each cable modem server located in an ATM access network domain maintains necessary information of how the cable network bandwidth is used by existing calls, and will be allocated when new multimedia conference calls are initiated, in accordance with desired priority and performance levels.