公开(公告)号：US10819456B2

公开(公告)日：2020-10-27

申请号：US16283280

申请日：2019-02-22

申请人： Corning Optical Communications LLC

发明人： Martin Spreemann

IPC分类号： H04B10/60 ,  H04H20/84 ,  H04L12/28 ,  H04L12/46 ,  H04H20/69 ,  H04L12/10 ,  H04L12/24 ,  H04Q11/00 ,  H04J14/02 ,  H04J14/08 ,  H04B10/69

摘要： A distribution point unit to exchange communication data between a service provider and subscribers. The distribution point unit may include a first port to couple the distribution point unit to an optical data network to exchange communication data between the distribution point unit and the service provider, and a second port to couple the distribution point unit to an electrical data network to exchange the communication data between the subscribers and the distribution point unit. The distribution point unit may also include a third port to couple the distribution point unit to an electrical device, the third port being configured to provide control data to control the electrical device.

公开(公告)号：US20180184134A1

公开(公告)日：2018-06-28

申请号：US15888000

申请日：2018-02-03

申请人： Time Warner Cable Enterprises LLC

发明人： Niem Dang ,  Tom Gonder ,  Peter J. Arnts ,  Kirk Erichsen ,  Brian Floyd ,  Michael Kelsen

IPC分类号： H04N21/2347 ,  H04N21/643 ,  H04L29/06 ,  H04N21/61 ,  H04N21/647 ,  H04H60/14 ,  H04H20/69 ,  H04N21/6408 ,  H04N21/6405

CPC分类号： H04N21/2347 ,  H04H20/69 ,  H04H60/14 ,  H04L63/0428 ,  H04N21/6118 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/6408 ,  H04N21/64322 ,  H04N21/64707 ,  H04N21/64715

摘要： A video distribution network includes a distribution plant and a first bulk encryption device connected to the distribution plant, wherein the bulk encryption device outputs a first encrypted video service stream to the distribution plant via an internet protocol (IP) interface.

公开(公告)号：US20180175996A1

公开(公告)日：2018-06-21

申请号：US15875336

申请日：2018-01-19

申请人： CABLE TELEVISION LABORATORIES, INC

发明人： Zhensheng JIA ,  Luis Alberto CAMPOS ,  Curtis Dean KNITTLE ,  Jing WANG

IPC分类号： H04L5/02 ,  H04H20/69 ,  H04L12/28 ,  H04H20/78 ,  H04N21/61

CPC分类号： H04L5/026 ,  H04H20/69 ,  H04H20/78 ,  H04L12/2801 ,  H04L12/2885 ,  H04N21/6118 ,  H04N21/6168

摘要： An optical network includes a transmitter portion configured to transmit a digitized stream of symbols over a digital optical link, a mapping unit disposed within the transmitter portion and configured to code the transmitted digitized stream of symbols with a mapping code prior to transmission over the digital optical link, a receiver portion configured to recover the coded stream of symbols from the digital optical link, and a demapping unit disposed within the receiver portion and configured to map the recovered coded stream of symbols into an uncoded digitized signal corresponding to the digitized stream of symbols at the transmitter portion prior to coding by the mapping unit.

公开(公告)号：US20180167255A1

公开(公告)日：2018-06-14

申请号：US15891142

申请日：2018-02-07

申请人： ARRIS Enterprises LLC

发明人： Zoran Maricevic ,  Marcel F. Schemmann ,  Dean Painchaud ,  William P. Dawson ,  Zhijian Sun

IPC分类号： H04L27/34 ,  H04J14/02 ,  H04H20/69

CPC分类号： H04L27/34 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/0282 ,  H04J14/0298

摘要： Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.

公开(公告)号：US09781453B2

公开(公告)日：2017-10-03

申请号：US14834346

申请日：2015-08-24

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N7/173 ,  H04N21/2383 ,  H04N21/61 ,  H04B10/2575 ,  H04L12/28 ,  H04N7/10 ,  H04N7/22 ,  H04N21/222 ,  H04H20/06 ,  H04L27/34 ,  H04N21/2385 ,  H04N21/239 ,  H04H20/69 ,  H04H20/78 ,  H04L27/26

CPC分类号： H04N21/2383 ,  H04B10/25751 ,  H04H20/06 ,  H04H20/69 ,  H04H20/78 ,  H04L12/2801 ,  H04L27/2601 ,  H04L27/3405 ,  H04N7/10 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2385 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/615 ,  H04N21/6168

摘要： A method of converting legacy HFC CATV cable systems, which transmit data over the optical fiber portion of the system using the optical counterpart of analog RF waveforms, such as RF QAM waveforms transduced to corresponding optical QAM waveforms, to improved HFC CATV systems that transmit data over the optical fiber using optical fiber optimized protocols, such as Ethernet frames and other optical fiber optimized digital transport protocols. According to the method, most aspects of the legacy HFC CATV system may be retained, however at the CATV head end, the optical fiber transmitter system is replaced by an improved system that extracts the underlying symbols from legacy waveforms, packages these symbols into optical fiber optimized packets, and transmits downstream. The legacy optical fiber nodes are replaced with improved nodes capable of receiving the packets and remodulating the symbols into RF waveforms suitable for injection into the system's CATV cable.

公开(公告)号：US09391723B2

公开(公告)日：2016-07-12

申请号：US11604667

申请日：2006-11-27

申请人： Adrian S. Matthews

发明人： Adrian S. Matthews

IPC分类号： H04M1/00 ,  H04H20/69 ,  H04H20/61 ,  H04H20/84

CPC分类号： H04B3/542 ,  H04H20/61 ,  H04H20/69 ,  H04H20/84 ,  H04L12/18

摘要： A method is disclosed for delivering data to an end user device, the method including receiving an optical signal containing broadband digital data; converting the optical signal to a first radio frequency signal; transmitting the first radio frequency (RF) signal from an RF transmitter to a first RF receiver in a first local region associated with the end user device; and converting the received radio frequency signal to a digital data signal. A system and computer program for performing the method are disclosed.

摘要翻译： 公开了一种用于将数据传送到终端用户设备的方法，该方法包括：接收包含宽带数字数据的光信号; 将所述光信号转换为第一射频信号; 在与所述终端用户设备相关联的第一本地区域中将所述第一射频（RF）信号从RF发射机发送到第一RF接收机; 并将所接收的射频信号转换成数字数据信号。 公开了一种用于执行该方法的系统和计算机程序。

公开(公告)号：US09380350B2

公开(公告)日：2016-06-28

申请号：US13887932

申请日：2013-05-06

申请人： BROADCOM CORPORATION

发明人： Thomas J. Kolze ,  Robbert van der Wal ,  Bruce J. Currivan

IPC分类号： G06F21/00 ,  H04L29/06 ,  H04N21/63 ,  H04H20/69 ,  H04H20/78 ,  H03M13/00 ,  H04L1/00

CPC分类号： H04N21/63 ,  H04H20/69 ,  H04H20/78

摘要： Methods and systems for DVB-C2 are disclosed and may include receiving data encoded utilizing variable encoding, variable modulation and outer codes via a physical layer matched to a desired quality of service. An error probability may be determined for said received data and retransmission of portions of said data with error probability above an error threshold may be requested. The variable modulation may include single carrier modulation, orthogonal frequency division modulation, synchronous code division multiple access, and/or from 256 QAM to 2048 QAM or greater. The variable encoding may include forward error correction code, which may include low density parity check code.

公开(公告)号：US20150020130A1

公开(公告)日：2015-01-15

申请号：US14276966

申请日：2014-05-13

申请人： Aurora Networks, Inc.

发明人： Michael Field ,  Javier A Solis ,  Rei Chen Brockett ,  Dave Baran

IPC分类号： H04N21/2365 ,  H04N21/2381 ,  H04N21/61 ,  H04H20/69 ,  H04L27/34 ,  H04N7/22

CPC分类号： H04N21/2365 ,  H04H20/69 ,  H04L12/2838 ,  H04L27/34 ,  H04N7/22 ,  H04N21/2315 ,  H04N21/2381 ,  H04N21/6118 ,  H04N21/6125

摘要： Interleaving multiple streams of data using a universal services multiplexer is followed by conveying a time interleaved multiplexer stream to a remote QAM module. A universal services multiplexer interleaves multiple streams of data into a time interleaved multiplexer stream.

摘要翻译： 使用通用服务多路复用器交织多个数据流之后，将时间交织的多路复用器流传送到远程QAM模块。 通用服务复用器将多个数据流交织到时间交织的多路复用器流中。

公开(公告)号：US5790170A

公开(公告)日：1998-08-04

申请号：US843247

申请日：1997-04-14

申请人： Mitsuhiro Suzuki

发明人： Mitsuhiro Suzuki

IPC分类号： H04H20/33 ,  H04H20/69 ,  H04H20/76 ,  H04H20/79 ,  H04H60/97 ,  H04N7/16 ,  H04N7/173 ,  H04N21/258 ,  H04N21/262 ,  H04N21/472 ,  H04N21/6405

CPC分类号： H04H60/97 ,  H04H20/33 ,  H04H20/69 ,  H04H20/76 ,  H04H20/79 ,  H04N7/17318

摘要： A subscriber terminal ms sends the demand including at least information for identifying the demand subscriber terminal, information for identifying the requested information, and information relating to the urgency of the requested information to the information distribution transmission center HE through the going-up line. The information distribution transmission center HE plans a transmits information requested according to the transmission schedule of the information based on this demand, and transmits the transmission schedule information included in the going-down control data to the subscriber terminal which sent the demand prior to the actual transmission, and transmits the requested information according to the above-mentioned transmission schedule. The subscriber terminal ms receives and analyzes the going-down control data from the information distribution transmission center HE and is informed of the transmission schedule, and acquires the information to be transmitted based on the obtained transmission plan, stored it in a large scale memory, and reads the information from the memory. A video on-demand system can be realized with a relatively small investment, and the centralization of traffic is mitigated, the network resource is used efficiently, and rational charging is enabled.

摘要翻译： 订户终端ms通过上行线路向信息分发传输中心HE发送至少包括用于识别请求用户终端的信息，用于识别所请求信息的信息和与请求信息的紧急性有关的信息。 信息分配传输中心HE基于该需求来计划根据信息的传输调度请求的发送信息，并且将包括在下行控制数据中的传输调度信息发送到在实际之前发送请求的用户终端 发送，并根据上述发送调度发送所请求的信息。 用户终端ms从信息分配发送中心HE接收并分析下行控制数据，并通知发送调度，并且基于获取的发送计划获取要发送的信息，将其存储在大规模存储器中， 并从内存读取信息。 可以实现投影相对较小的视频点播系统，减轻流量集中，有效利用网络资源，实现有效的收费。

公开(公告)号：US5659351A

公开(公告)日：1997-08-19

申请号：US366472

申请日：1994-12-30

申请人： David R. Huber

发明人： David R. Huber

IPC分类号： G02B6/34 ,  H01S3/10 ,  H04B10/17 ,  H04B10/207 ,  H04H20/69 ,  H04J14/02 ,  H04N7/10 ,  H04N7/22 ,  H04N21/81 ,  H04N7/173

CPC分类号： H04H20/69 ,  G02B6/2932 ,  H01S3/10023 ,  H04B10/2941 ,  H04J14/02 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0234 ,  H04J14/0238 ,  H04J14/0252 ,  H04J14/028 ,  H04J14/0282 ,  H04J14/0286 ,  H04J14/0298 ,  H04N21/812 ,  H04N7/10 ,  H04N7/108 ,  H04N7/22 ,  G02B6/2935 ,  H04J14/0201 ,  H04J14/0204 ,  H04J14/0226

摘要： An optical cable television system provides a large channel capacity and uses shared resources, whereby the more expensive hardware is shared over a large number of customers so as to minimize the cost per customer. A video switch network is provided which minimizes the temptation of subscribers to pirate signals since pay per view or on demand signals are provided only upon request of someone within a node corresponding to a neighborhood. An on demand program center continuously plays programs, such as movies, at time-staggered starts such that any subscriber will have only very minimal delays before seeing a particular program which is requested. A tuneable optical filter is provided in order to switch video signals onto an optical fiber going to the node in a particular neighborhood. An arrangement uses in-fiber grating in order to remove and insert different optical frequencies. Local insertion of various program sources, such as local commercials, is accomplished effectively by making such insertion at a relatively high point in the video distribution chain. An interface arrangement to provide on demand video signals to telephone company twisted pair wires is utilized.

摘要翻译： 光缆电视系统提供大的信道容量并且使用共享资源，由此在大量客户上共享更昂贵的硬件，以便最小化每个客户的成本。 提供一种视频切换网络，其最小化用户对盗版信号的诱惑，因为每次观看付费或点播信号仅在对应于邻域的节点内的人的请求时提供。 按需节目中心连续播放诸如电影之类的节目，以便在查看所请求的特定节目之前，任何用户将只有非常小的延迟。 提供可调光滤波器以便将视频信号切换到去往特定邻域中的节点的光纤上。 布置使用光纤内光栅来去除和插入不同的光频率。 通过在视频分发链中相对较高的位置进行这种插入，可以有效地实现诸如本地商业广告的各种节目源的本地插入。 利用一种用于向电话公司的双绞线提供按需视频信号的接口装置。