公开(公告)号：US09887855B2

公开(公告)日：2018-02-06

申请号：US14579707

申请日：2014-12-22

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N7/173 ,  H04L12/28 ,  H04N21/61 ,  H04N7/22 ,  H04B10/2575 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/239

CPC分类号： H04L12/2885 ,  H04B10/25751 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/23605 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6125 ,  Y02D70/122

摘要： A virtual converged cable access platform (CCAP) system and method for hybrid fiber CATV (HFC) cable networks. The system uses a new type of digital optical fiber node configured to receive optical fiber data packets, and reconstitute the optical data packets into RF waveforms suitable for injection into the system's CATV cable. The system replaces the legacy HFC head end with a simplified “virtual head end”. The system's virtual head end operates using a new type of virtual CCAP controller and virtual CCAP software that in turn controls high performance edge routers. Much of the intelligence of running the HFC cable system is managed by the controller software, while the edge router manages the interface between the CATV portion of the system and outside networks. The system can handle even legacy CATV RF signals by appropriate conversion operations, while reducing power and space needs, and improving operational flexibility.

公开(公告)号：US09521464B2

公开(公告)日：2016-12-13

申请号：US13964394

申请日：2013-08-12

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N7/173 ,  H04N21/61 ,  H04L12/28 ,  H04N7/10

CPC分类号： H04N21/6168 ,  H04L12/2801 ,  H04N7/106 ,  H04N21/6118

摘要： System and method to extend the data carrying capacity of a hybrid fiber cable (HFC) network by adding wideband RF signal capability above 1 GHz, and replacing the CATV amplifier devices with an improved type of Coax Domain Amplifier-Repeater (CDAR) device that, in addition to being a smart reconfigurable amplifier and cable signal diagnostic device, also segments the CATV cable portion of the HFC network into a series of smaller domains. The CDAR often alter RF signals from 5-865 MHz, while more freely passing RF signals over 1 GHz. Upstream capability is enhanced because the CDAR intercept 5-42 MHz upstream signals from each domain and convert to 1 GHz+ signals. Downstream capability is also enhanced because the CDAR can take efficiently encoded 1 GHz+ digital data, modulate it, and locally inject into each domain without crosstalk between domains. CDAR can use active cancellation, and active restoration techniques to improve performance.

摘要翻译： 通过增加1GHz以上的宽带射频信号能力来扩展混合光纤电缆（HFC）网络的数据承载能力的系统和方法，并用改进型的同轴放大器 - 中继器（CDAR）装置替换CATV放大器装置， 除了作为智能可重构放大器和电缆信号诊断装置之外，还将HFC网络的CATV电缆部分分成一系列较小的域。 CDAR经常改变5-865MHz的RF信号，而更自由地通过1GHz的RF信号。 上行能力得到增强，因为CDAR拦截每个域的5-42 MHz上行信号并转换为1 GHz +信号。 下行能力也得到提高，因为CDAR可以有效地编码1 GHz +数字数据，对其进行调制，并将局域性注入每个域，而不会产生域之间的串扰。 CDAR可以使用主动取消和主动恢复技术来提高性能。

公开(公告)号：US08938769B2

公开(公告)日：2015-01-20

申请号：US14098656

申请日：2013-12-06

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N7/173 ,  H04N21/61

CPC分类号： H04L12/2885 ,  H04B10/25751 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/23605 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6125 ,  Y02D70/12 ,  Y02D70/122

摘要： A virtual converged cable access platform (CCAP) system and method for hybrid fiber CATV (HFC) cable networks. The system uses a new type of digital optical fiber node configured to receive optical fiber data packets, and reconstitute the optical data packets into RF waveforms suitable for injection into the system's CATV cable. The system replaces the legacy HFC head end with a simplified “virtual head end”. The system's virtual head end operates using a new type of virtual CCAP controller and virtual CCAP software that in turn controls high performance edge routers. Much of the intelligence of running the HFC cable system is managed by the controller software, while the edge router manages the interface between the CATV portion of the system and outside networks. The system can handle even legacy CATV RF signals by appropriate conversion operations, while reducing power and space needs, and improving operational flexibility.

摘要翻译： 用于混合光纤CATV（HFC）电缆网络的虚拟融合电缆接入平台（CCAP）系统和方法。 该系统使用一种新型数字光纤节点，用于接收光纤数据包，并将光数据包重构为适合于注入系统CATV电缆的RF波形。 该系统用简化的“虚拟头端”替代传统的HFC头端。 系统的虚拟头端使用新型的虚拟CCAP控制器和虚拟CCAP软件进行操作，从而控制高性能边缘路由器。 运行HFC电缆系统的大部分智能由控制器软件管理，而边缘路由器管理系统的CATV部分和外部网络之间的接口。 该系统可以通过适当的转换操作来处理传统的CATV射频信号，同时降低功耗和空间需求，并提高操作灵活性。

公开(公告)号：US20140101711A1

公开(公告)日：2014-04-10

申请号：US14098656

申请日：2013-12-06

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N21/61

CPC分类号： H04L12/2885 ,  H04B10/25751 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/23605 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6125 ,  Y02D70/12 ,  Y02D70/122

摘要： A virtual converged cable access platform (CCAP) system and method for hybrid fiber CATV (HFC) cable networks. The system uses a new type of digital optical fiber node configured to receive optical fiber data packets, and reconstitute the optical data packets into RF waveforms suitable for injection into the system's CATV cable. The system replaces the legacy HFC head end with a simplified “virtual head end”. The system's virtual head end operates using a new type of virtual CCAP controller and virtual CCAP software that in turn controls high performance edge routers. Much of the intelligence of running the HFC cable system is managed by the controller software, while the edge router manages the interface between the CATV portion of the system and outside networks. The system can handle even legacy CATV RF signals by appropriate conversion operations, while reducing power and space needs, and improving operational flexibility.

摘要翻译： 用于混合光纤CATV（HFC）电缆网络的虚拟融合电缆接入平台（CCAP）系统和方法。 该系统使用一种新型数字光纤节点，配置为接收光纤数据包，并将光数据包重构为适合注入系统CATV电缆的RF波形。 该系统用简化的“虚拟头端”替代传统的HFC头端。 系统的虚拟头端使用新型的虚拟CCAP控制器和虚拟CCAP软件进行操作，从而控制高性能边缘路由器。 运行HFC电缆系统的大部分智能由控制器软件管理，而边缘路由器管理系统的CATV部分和外部网络之间的接口。 该系统可以通过适当的转换操作来处理传统的CATV射频信号，同时降低功耗和空间需求，并提高操作灵活性。

公开(公告)号：US20160294474A1

公开(公告)日：2016-10-06

申请号：US15089504

申请日：2016-04-02

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04B10/2575 ,  H04N21/239 ,  H04N7/22 ,  H04N21/61 ,  H04H20/78

CPC分类号： H04B10/25751 ,  H04H20/78 ,  H04N7/10 ,  H04N7/22 ,  H04N21/238 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6168

摘要： System and method to extend the upstream data capacity of an HFC CATV system by extending a “shadow” optical fiber network deeper into the various CATV cable neighborhoods, with coax fiber terminals (CFT) spaced roughly according to the distribution of CATV active devices such as RF amplifiers. The CFT can intercept local upstream data from various neighborhood sub-regions and transform this upstream data into upstream optical data, thus relieving upstream data congestion in the 5-42 MHz CATV frequency region. The system can produce an order of magnitude improvement in upstream capability, while maintaining high compatibility with legacy HFC equipment. The CFT may exist in multiple embodiments ranging from low-cost “dumb” CFT to sophisticated CFT that can additionally provide GigE to the home (GTTH) service. Methods to maintain good compatibility with legacy CMTS devices, and methods to utilize DOCSIS MAP data for more efficient data transmission are also discussed.

摘要翻译： 通过将“阴影”光纤网络更深地扩展到各种CATV电缆邻域中，通过同轴光纤终端（CFT）根据CATV有源设备的分布大致间隔地扩展HFC CATV系统的上行数据容量的系统和方法，例如 射频放大器。 CFT可以截取各个邻域子区域的本地上游数据，并将上游数据转换成上行光数据，从而缓解了5-42 MHz有线电视频率区域的上行数据拥塞。 该系统可以在上游能力方面产生一个数量级的改善，同时保持与传统HFC设备的高兼容性。 CFT可以存在于多个实施例中，从低成本“哑”CFT到可以另外向家庭（GTTH）服务提供GigE的复杂CFT。 还讨论了与传统CMTS设备保持良好兼容性的方法以及利用DOCSIS MAP数据进行更有效的数据传输的方法。

公开(公告)号：US20150172072A1

公开(公告)日：2015-06-18

申请号：US14579707

申请日：2014-12-22

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04L12/28 ,  H04B10/2575 ,  H04N21/236 ,  H04N21/239 ,  H04N21/2383 ,  H04N21/61

CPC分类号： H04L12/2885 ,  H04B10/25751 ,  H04L12/2801 ,  H04N7/22 ,  H04N21/23605 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6125 ,  Y02D70/122

摘要： A virtual converged cable access platform (CCAP) system and method for hybrid fiber CATV (HFC) cable networks. The system uses a new type of digital optical fiber node configured to receive optical fiber data packets, and reconstitute the optical data packets into RF waveforms suitable for injection into the system's CATV cable. The system replaces the legacy HFC head end with a simplified “virtual head end”. The system's virtual head end operates using a new type of virtual CCAP controller and virtual CCAP software that in turn controls high performance edge routers. Much of the intelligence of running the HFC cable system is managed by the controller software, while the edge router manages the interface between the CATV portion of the system and outside networks. The system can handle even legacy CATV RF signals by appropriate conversion operations, while reducing power and space needs, and improving operational flexibility.

摘要翻译： 用于混合光纤CATV（HFC）电缆网络的虚拟融合电缆接入平台（CCAP）系统和方法。 该系统使用一种新型数字光纤节点，配置为接收光纤数据包，并将光数据包重构为适合注入系统CATV电缆的RF波形。 该系统用简化的“虚拟头端”替代传统的HFC头端。 系统的虚拟头端使用新型的虚拟CCAP控制器和虚拟CCAP软件进行操作，从而控制高性能边缘路由器。 运行HFC电缆系统的大部分智能由控制器软件管理，而边缘路由器管理系统的CATV部分和外部网络之间的接口。 该系统可以通过适当的转换操作来处理传统的CATV射频信号，同时降低功耗和空间需求，并提高操作灵活性。

公开(公告)号：US20150172071A1

公开(公告)日：2015-06-18

申请号：US14579028

申请日：2014-12-22

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04L12/28 ,  H04N21/61 ,  H04N21/6402 ,  H04N21/239 ,  H04N21/643 ,  H04B10/2575 ,  H04N21/2383

CPC分类号： H04L12/2801 ,  H04B10/25751 ,  H04H20/10 ,  H04H20/69 ,  H04H20/78 ,  H04N7/10 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/2396 ,  H04N21/6118 ,  H04N21/615 ,  H04N21/6168 ,  H04N21/6402 ,  H04N21/64322

摘要： Distributed CMTS device for a HFC CATV network serving multiple neighborhoods by multiple individual cables, in which at least some and often all of the QAM modulators that provide data for the individual cables are remote QAM modulators ideally located at the fiber nodes. A CCAP set of IP/on-demand data is transmitted to the nodes using an optical fiber, often using digital protocols such as Ethernet protocols. Optionally a basic set of legacy CATV QAM data, transmitted using RF waveforms transposed to optical frequencies, may also be transmitted to the nodes using either the same or different optical fiber. The nodes extract the data specific to each neighborhood, and inject this data into unused cable QAM channels along with any optional legacy CATV QAM waveforms as desired, thus achieving improved data transmission rates through finer granularity. A computerized “virtual shelf” control system for this system is also disclosed.

摘要翻译： 用于通过多个单独电缆为多个邻域服务的HFC CATV网络的分布式CMTS设备，其中至少一些并且通常所有为各个电缆提供数据的QAM调制器是理想地位于光纤节点处的远程QAM调制器。 通过使用诸如以太网协议的数字协议，使用光纤将CCAP一组IP /点播数据发送到节点。 可选地，也可以使用相同或不同的光纤将传输的使用RF波形传输的传统CATV QAM数据的基本集合发送到光学频率。 节点提取特定于每个邻域的数据，并根据需要将该数据注入未使用的电缆QAM信道以及任何可选的传统CATV QAM波形，从而通过更细粒度实现改进的数据传输速率。 还公开了一种用于该系统的计算机化的“虚拟架”控制系统。

公开(公告)号：US09854283B2

公开(公告)日：2017-12-26

申请号：US14170579

申请日：2014-02-01

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N21/2383 ,  H04N7/10 ,  H04N7/22 ,  H04B10/2575 ,  H04N21/239 ,  H04N21/61

CPC分类号： H04N21/2383 ,  H04B10/25751 ,  H04N7/10 ,  H04N7/22 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6168

摘要： Distributed and highly software reconfigurable CMTS (CMRTS) device, based on MAC and PHY units with FPGA and DSP components, for a HFC CATV network. The various CATV RF modulators, such as QAM modulators, may be divided between QAM modulators located at the cable plant, and remote QAM modulators ideally located at the fiber nodes. A basic set of CATV QAM data waveforms may optionally be transmitted to the nodes using a first fiber, and a second set of IP/on-demand data may be transmitted to the nodes using an alternate fiber or alternate fiber frequency, and optionally using other protocols such as Ethernet protocols. The nodes will extract the data specific to each neighborhood and inject this data into unused QAM channels, thus achieving improved data transmission rates through finer granularity. A computerized “virtual shelf” control system for managing and reconfiguring the FPGA and DSP based CMTRS units is also disclosed.

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：US09326039B1

公开(公告)日：2016-04-26

申请号：US14467738

申请日：2014-08-25

申请人： Gainspeed, Inc.

发明人： Shlomo Selim Rakib

IPC分类号： H04N21/61 ,  H04N7/10 ,  H04N7/22 ,  H04N21/239 ,  H04N21/238 ,  H04H20/78 ,  H04B10/2575

CPC分类号： H04B10/25751 ,  H04H20/78 ,  H04N7/10 ,  H04N7/22 ,  H04N21/238 ,  H04N21/239 ,  H04N21/6118 ,  H04N21/6168

摘要： System and method to extend the upstream data capacity of an HFC CATV system by extending a “shadow” optical fiber network deeper into the various CATV cable neighborhoods, with coax fiber terminals (CFT) spaced roughly according to the distribution of CATV active devices such as RF amplifiers. The CFT can intercept local upstream data from various neighborhood sub-regions and transform this upstream data into upstream optical data, thus relieving upstream data congestion in the 5-42 MHz CATV frequency region. The system can produce an order of magnitude improvement in upstream capability, while maintaining high compatibility with legacy HFC equipment. The CFT may exist in multiple embodiments ranging from low-cost “dumb” CFT to sophisticated CFT that can additionally provide GigE to the home (GTTH) service. Methods to maintain good compatibility with legacy CMTS devices, and methods to utilize DOCSIS MAP data for more efficient data transmission are also discussed.

摘要翻译： 通过将“阴影”光纤网络更深地扩展到各种CATV电缆邻域中，通过同轴光纤终端（CFT）根据CATV有源设备的分布大致间隔地扩展HFC CATV系统的上行数据容量的系统和方法，例如 射频放大器。 CFT可以截取各个邻域子区域的本地上游数据，并将上游数据转换成上行光数据，从而缓解了5-42 MHz有线电视频率区域的上行数据拥塞。 该系统可以在上游能力方面产生一个数量级的改善，同时保持与传统HFC设备的高兼容性。 CFT可以存在于多个实施例中，从低成本“哑”CFT到可以另外向家庭（GTTH）服务提供GigE的复杂CFT。 还讨论了与传统CMTS设备保持良好兼容性的方法以及利用DOCSIS MAP数据进行更有效的数据传输的方法。