公开(公告)号：US20220303102A1

公开(公告)日：2022-09-22

申请号：US17838659

申请日：2022-06-13

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

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：US11153622B2

公开(公告)日：2021-10-19

申请号：US16895977

申请日：2020-06-08

申请人： Time Warner Cable Enterprises LLC

发明人： Glen Hardin

IPC分类号： H04N21/262 ,  H04H20/77 ,  H04N7/10 ,  H04N21/2389 ,  H04N21/472 ,  H04N21/2343 ,  H04N21/2385 ,  H04N21/239 ,  H04N21/254 ,  H04N21/6405 ,  H04N21/6408 ,  H04H20/18 ,  H04L27/00 ,  H04N21/242 ,  H04H20/69

摘要： Methods and apparatus for distributing content using a spectrum generation device. In one embodiment, digital content is received via a time-multiplexed network transport (such as Gigabit Ethernet), and converted to frequency channels suitable for transmission over a content distribution (e.g., Hybrid Fiber Coaxial (HFC)) network. In one variant, the conversion is performed using digital domain processing performed by a full spectrum generation device. Additionally, methods and apparatus for selectively adding, removing, and/or changing digital content from the full spectrum device are also disclosed. Various aspects of the present invention enable physical (infrastructure) consolidation, and software-implemented remote management of content distribution.

公开(公告)号：US10681405B2

公开(公告)日：2020-06-09

申请号：US16267103

申请日：2019-02-04

申请人： Time Warner Cable Enterprises LLC

发明人： Glen Hardin

IPC分类号： H04N21/262 ,  H04H20/77 ,  H04N7/10 ,  H04N21/2389 ,  H04N21/472 ,  H04N21/2343 ,  H04N21/2385 ,  H04N21/239 ,  H04N21/254 ,  H04N21/6405 ,  H04N21/6408 ,  H04H20/18 ,  H04L27/00 ,  H04N21/242 ,  H04H20/69

摘要： Methods and apparatus for distributing content using a spectrum generation device. In one embodiment, digital content is received via a time-multiplexed network transport (such as Gigabit Ethernet), and converted to frequency channels suitable for transmission over a content distribution (e.g., Hybrid Fiber Coaxial (HFC)) network. In one variant, the conversion is performed using digital domain processing performed by a full spectrum generation device. Additionally, methods and apparatus for selectively adding, removing, and/or changing digital content from the full spectrum device are also disclosed. Various aspects of the present invention enable physical (infrastructure) consolidation, and software-implemented remote management of content distribution.

公开(公告)号：US09923751B2

公开(公告)日：2018-03-20

申请号：US13175681

申请日：2011-07-01

申请人： Zoran Maricevic ,  Marcel F. Schemmann ,  Dean Painchaud ,  William P. Dawson ,  Zhijian Sun

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

IPC分类号： H04B14/00 ,  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：US09652961B2

公开(公告)日：2017-05-16

申请号：US14800382

申请日：2015-07-15

申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD

发明人： Yuji Kawasaki ,  Ryosuke Kitago ,  Hirotaka Fukutsuka ,  Keiji Yamahai

IPC分类号： G08B21/02 ,  H04N7/18 ,  G08B13/22 ,  G08B25/00 ,  H04H20/61 ,  H04H20/69 ,  H04H60/04

CPC分类号： G08B13/196 ,  G08B13/19656 ,  G08B13/22 ,  G08B21/02 ,  G08B25/00 ,  H04H20/61 ,  H04H20/69 ,  H04H60/04 ,  H04N7/08 ,  H04N7/18 ,  H04N7/183 ,  H04R1/04

摘要： A sound amplification apparatus includes one or more microphones that convert collected sound into an audio signal and transmit the audio signal by radio and a sound receiving apparatus that receives the audio signal transmitted from the microphone and amplifies and outputs the sound based on the audio signal. The sound receiving apparatus is configured to perform sound output control in an emergency mode upon receiving an emergency signal transmitted in response to operation of an emergency switch of the microphone. With this configuration, it is possible to perform appropriate sound control in a dangerous situation such as intrusion of a suspicious person.

公开(公告)号：US09363027B2

公开(公告)日：2016-06-07

申请号：US14462084

申请日：2014-08-18

申请人： ARRIS Enterprises, Inc.

发明人： Marcel Schemmann ,  Zoran Maricevic

IPC分类号： H04J14/08 ,  H04L27/00 ,  H04B10/27 ,  H04H20/69 ,  H04Q11/00 ,  H04J14/02

CPC分类号： H04H20/69 ,  H04J14/0238 ,  H04J14/08 ,  H04Q11/0003 ,  H04Q11/0067

摘要： Methods, systems, and computer readable media can be operable to facilitate the remote modulation of pre-transformed data. In embodiments, a CMTS can provide pre-transformed data in the frequency domain to a transmitter or receiver. Multiple network components can be bypassed when pre-transformed data is delivered directly to a transmitter or receiver, thus improving the amount of network capacity and available network resources. In embodiments, pre-transformed data can be transformed and modulated at a receiver.

摘要翻译： 方法，系统和计算机可读介质可以用于促进预变换数据的远程调制。 在实施例中，CMTS可以将频域中的预变换数据提供给发射机或接收机。 当将预先转换的数据直接传送到发射机或接收机时，可以绕过多个网络组件，从而改善网络容量和可用网络资源的数量。 在实施例中，预变换数据可以在接收机处进行变换和调制。

公开(公告)号：US09325515B2

公开(公告)日：2016-04-26

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 ,  H04N21/222 ,  H04N21/2383 ,  H04N21/239 ,  H04N21/61 ,  H04N7/10 ,  H04N7/22 ,  H04H20/10 ,  H04H20/69 ,  H04H20/78 ,  H04B10/2575 ,  H04N21/6402 ,  H04N21/643

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.

公开(公告)号：US08897651B2

公开(公告)日：2014-11-25

申请号：US12855822

申请日：2010-08-13

申请人： Yuxin Dai

发明人： Yuxin Dai

IPC分类号： H04B10/24 ,  H04B10/00 ,  H04H20/69 ,  H04J14/02 ,  H04N7/22 ,  H04Q11/00 ,  H04L12/28

CPC分类号： H04N7/22 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L12/2801 ,  H04Q11/0067 ,  H04Q11/0071

摘要： An apparatus comprising a wavelength division multiplexer (WDM), an optical network unit (ONU) coupled to the WDM, a passive optical network (PON) data over cable service interface specification (DOCSIS) upstream proxy (PDUP) coupled to the ONU and configured to couple to a coaxial cable, and a downstream (DS) optical/electrical (O/E) converter coupled to the WDM and configured to couple to the coaxial cable. An apparatus comprising a WDM, an optical line terminal (OLT) coupled to the WDM, a cable model termination system (CMTS) coupled to the OLT via an upstream external physical (PHY) interface (UEPI), and a DOCSIS and a Quadrature Amplitude Modulation (QAM) unit coupled to the WDM and the CMTS.

摘要翻译： 一种装置，包括波分多路复用器（WDM），耦合到WDM的光网络单元（ONU），耦合到ONU的有线服务接口规范（DOCSIS）上游代理（PDUP）的无源光网络（PON）数据，并配置 耦合到同轴电缆，以及耦合到WDM并被配置为耦合到同轴电缆的下游（DS）光/电（O / E）转换器。 一种装置，包括WDM，耦合到WDM的光线路终端（OLT），经由上游外部物理（PHY）接口（UEPI）耦合到OLT的电缆模型终端系统（CMTS）以及DOCSIS和正交幅度 耦合到WDM和CMTS的调制（QAM）单元。

公开(公告)号：US20050152697A1

公开(公告)日：2005-07-14

申请号：US10922403

申请日：2004-08-19

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Kee-Sung Nam ,  Tae-Sung Park

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Kee-Sung Nam ,  Tae-Sung Park

IPC分类号： H04B10/00 ,  H04B10/27 ,  H04B10/272 ,  H04H1/00 ,  H04H20/69 ,  H04J3/00 ,  H04J4/00 ,  H04J14/02 ,  H04J14/08 ,  H04L12/28 ,  H04L12/44 ,  H04N7/173 ,  H04N7/22 ,  H04N21/2381 ,  H04N21/2389 ,  H04N21/647

CPC分类号： H04J14/0226 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L49/351 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/64322

摘要： An Ethernet passive optical network provides a subscriber with a high speed and large capacity data service and a real time digital broadcast/video service. The network includes an optical line terminal for frame-multiplexing broadcast/video signals, which are obtained by performing a switching operation and a time-slot multiplexing with respect to a plurality of digital broadcast/video data delivered from external broadcasting vendors according to broadcast/video selection information delivered from each user, and communication data delivered through an Internet protocol network.

摘要翻译： 以太网无源光网络为用户提供高速和大容量数据服务以及实时数字广播/视频服务。 网络包括用于帧广播/视频信号的帧多路复用的光线路终端，其通过根据广播/视频信号对从外部广播供应商传送的多个数字广播/视频数据进行切换操作和时隙复用获得， 从每个用户传送的视频选择信息，以及通过因特网协议网络传递的通信数据。

公开(公告)号：US20050129404A1

公开(公告)日：2005-06-16

申请号：US11005930

申请日：2004-12-06

申请人： Byoung Kim ,  Seung Cho ,  Hyeong Lee

发明人： Byoung Kim ,  Seung Cho ,  Hyeong Lee

IPC分类号： G02B6/34 ,  H04H1/00 ,  H04H20/69 ,  H04J14/02

CPC分类号： G02B6/29313 ,  G02B6/12019 ,  G02B6/2931 ,  H04H20/69 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0234 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252

摘要： Provided is an apparatus for providing a broadcasting service through an overlay structure in a WDM-PON. The apparatus comprises: a first grating section receiving a multiplexed signal of N data communication optical wavelength signals and a broadcasting optical wavelength signal, which have separate wavelengths, transmitted from an optical line terminal (OLT) and wavelength-demultiplexing the multiplexed signal; a mirror reflecting the broadcasting optical wavelength signal wavelength-demultiplexed by the first grating section; and a second grating section receiving the reflected broadcasting optical wavelength signal and splitting it to all subscriber ports.

摘要翻译： 提供了一种通过WDM-PON中的覆盖结构提供广播服务的装置。 该装置包括：接收从光线路终端（OLT）发送的具有分离波长的N个数据通信光波长信号的复用信号和广播光波长信号的第一光栅部分，并对复用的信号进行波长分离; 反射由第一光栅部分波分解的广播光波长信号的反射镜; 以及接收反射的广播光波长信号并将其分割成所有用户端口的第二光栅部分。