公开(公告)号：US09100666B2

公开(公告)日：2015-08-04

申请号：US14579312

申请日：2014-12-22

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04N7/20 ,  H04N21/214 ,  H04N21/61

CPC classification number: H04N21/4363 ,  H04N7/106 ,  H04N21/2143 ,  H04N21/2381 ,  H04N21/6143 ,  H04N21/6168

Abstract: Methods and systems for cross-protocol time synchronization may comprise, for example, in a premises-based network, receiving, by a root node network controller in the premises, signals that conform to one or more first communications protocols. The received signals may be bridged to conform to a second communications protocol different from the first communications protocol, and the bridged signals may be communicated to networked devices within the network, where only signals conforming to the second communications protocol may be concurrently communicated over the network in a frequency range of the first communications protocol and in a frequency range of the second communications protocol, the frequency range used by the first communications protocol being different from and not overlapping with the frequency range used by the second communications protocol. The first communications protocol signals may comprise data over cable service interface specification (DOCSIS) signals, cable, and/or or satellite television signals.

Abstract translation: 用于交叉协议时间同步的方法和系统可以包括例如在基于房屋的网络中，由房屋中的根节点网络控制器接收符合一个或多个第一通信协议的信号。 接收到的信号可以被桥接以符合与第一通信协议不同的第二通信协议，并且桥接信号可以被传送到网络内的网络设备，其中只有符合第二通信协议的信号可以通过网络同时传送 在第一通信协议的频率范围内，在第二通信协议的频率范围内，由第一通信协议使用的频率范围与第二通信协议使用的频率范围不同，不与其重叠。 第一通信协议信号可以包括通过电缆业务接口规范（DOCSIS）信号，电缆和/或卫星电视信号的数据。

公开(公告)号：US20150194932A1

公开(公告)日：2015-07-09

申请号：US14589801

申请日：2015-01-05

Applicant: Maxlinear, Inc.

Inventor： Ramesh Sridhar ,  Timothy Gallagher ,  Ali Shahed hagh Ghadam ,  Shantha Murthy Prem Swaroop

IPC: H03F1/02 ,  H04B1/04 ,  H03G3/30 ,  H03F3/19 ,  H03F3/21

CPC classification number: H04B1/0475 ,  H03F1/02 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/213 ,  H03F3/24 ,  H03F2200/451 ,  H03F2201/3215 ,  H03G3/3042 ,  H04B2001/0425 ,  H04B2001/045

Abstract: Methods and systems for crest factor reduction may comprise generating an original waveform, generating a distortion signal by reducing a crest factor of the original waveform, generating an error signal by subtracting out the original waveform from the distortion signal, generating a conditioned waveform by adding the error signal to the original waveform, and amplifying the conditioned waveform. The crest factor of the original waveform may be reduced based on spectral mask requirements. The crest factor of the original waveform may be reduced using a limiter. The power amplifier may comprise a programmable gain amplifier (PGA). The distortion signal may be generated based on a PGA model and/or a predistortion model. A signal from an output of the PA may be fed back to the PGA model. The PGA model may be dynamically configured. The crest factor of the original waveform may be reduced in an analog domain and/or a digital domain. The error signal may be filtered utilizing a distortion shaping filter.

Abstract translation: 用于波峰因数降低的方法和系统可以包括产生原始波形，通过减小原始波形的波峰因数产生失真信号，通过从失真信号中减去原始波形产生误差信号，通过将 误差信号到原始波形，并放大调节波形。 可以基于光谱掩模要求来减小原始波形的波峰因数。 原始波形的波峰因数可以使用限幅器来减小。 功率放大器可以包括可编程增益放大器（PGA）。 可以基于PGA模型和/或预失真模型来生成失真信号。 来自PA的输出的信号可以被反馈到PGA模型。 可以动态配置PGA模型。 在模拟域和/或数字域中，原始波形的波峰因数可能会降低。 可以使用失真整形滤波器对误差信号进行滤波。

公开(公告)号：US09049491B2

公开(公告)日：2015-06-02

申请号：US14015481

申请日：2013-08-30

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H03M1/00 ,  H04N21/61 ,  H03M1/12 ,  H03H17/04 ,  H03M3/00 ,  H04J1/00 ,  H04H20/42 ,  H04H20/77 ,  H04H40/27 ,  H04N7/10

CPC classification number: H04N21/6587 ,  H03H17/0416 ,  H03M1/12 ,  H03M1/126 ,  H03M3/496 ,  H04H20/426 ,  H04H20/77 ,  H04H40/27 ,  H04J1/00 ,  H04N7/10 ,  H04N7/106 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6373

Abstract: A network device may receive a signal from a headend, wherein a bandwidth of the received signal spans from a low frequency to a high frequency and encompasses a plurality of sub-bands. The network device may determine, based on communication with the headend, whether one of more of the sub-bands residing above a threshold frequency are available for carrying downstream data from the headend to the circuitry. The network device may digitize the signal using an ADC operating at a sampling frequency. The sampling frequency may be configured based on a result of the determining. When the sub-band(s) are available for carrying downstream data from the headend to the network device, the sampling frequency may be set to a relatively high frequency. When the sub-band(s) are not available for carrying downstream data from the headend to the network device, the sampling frequency may be set to a relatively low frequency.

Abstract translation: 网络设备可以从前端接收信号，其中接收信号的带宽从低频跨越到高频并且包含多个子带。 网络设备可以基于与头端的通信来确定驻留在阈值频率之上的多个子带中的一个以上是否可用于将下行数据从头端传送到电路。 网络设备可以使用以采样频率工作的ADC来对信号进行数字化。 可以基于确定的结果来配置采样频率。 当子带可用于从头端传送到网络设备的下行数据时，采样频率可以被设置为相对较高的频率。 当子带不可用于从头端传送到网络设备的下行数据时，采样频率可以被设置为相对低的频率。

公开(公告)号：US20150134993A1

公开(公告)日：2015-05-14

申请号：US14541349

申请日：2014-11-14

Applicant: MaxLinear, Inc.

Inventor： Timothy Gallagher ,  Glenn DeLucio ,  Curtis Ling

IPC: G06F1/32 ,  H04N21/436

CPC classification number: G06F1/3296 ,  G06F1/3234 ,  H04L12/10 ,  H04L49/90 ,  H04N21/43615 ,  H04N21/4436

Abstract: A first device of a multimedia over coax alliance (MoCA) network may grant a second device of the MoCA network permission to enter a power-saving state. While the second device is in the power-saving mode, the first device may grant bandwidth to the second device during one or more predetermined timeslots. The bandwidth may be granted without a corresponding reservation request from the second device. While the second device is in the power-saving state, it may track time utilizing a clock that is synchronized to the system time of the MoCA network, and transmit during one or more of the predetermined timeslots without first transmitting a corresponding reservation request. The second device may utilize a first modulation profile when not operating in the power-saving state, and utilize a second modulation profile when operating in the power-saving state.

Abstract translation: 多媒体同轴联盟（MoCA）网络的第一设备可以授权MoCA网络的第二设备许可进入省电状态。 当第二设备处于省电模式时，第一设备可以在一个或多个预定时隙期间向第二设备授予带宽。 可以在没有来自第二设备的相应预留请求的情况下授予带宽。 当第二设备处于省电状态时，它可以利用与MoCA网络的系统时间同步的时钟跟踪时间，并且在一个或多个预定时隙期间发送，而不首先发送相应的预留请求。 当不工作在省电状态时，第二设备可以利用第一调制曲线，并且当在省电状态下工作时利用第二调制曲线。

公开(公告)号：US20150113574A1

公开(公告)日：2015-04-23

申请号：US14579312

申请日：2014-12-22

Applicant: MAXLINEAR, INC.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04N21/214 ,  H04N21/61

CPC classification number: H04N21/4363 ,  H04N7/106 ,  H04N21/2143 ,  H04N21/2381 ,  H04N21/6143 ,  H04N21/6168

Abstract: Methods and systems for cross-protocol time synchronization may comprise, for example, in a premises-based network, receiving, by a root node network controller in the premises, signals that conform to one or more first communications protocols. The received signals may be bridged to conform to a second communications protocol different from the first communications protocol, and the bridged signals may be communicated to networked devices within the network, where only signals conforming to the second communications protocol may be concurrently communicated over the network in a frequency range of the first communications protocol and in a frequency range of the second communications protocol, the frequency range used by the first communications protocol being different from and not overlapping with the frequency range used by the second communications protocol. The first communications protocol signals may comprise data over cable service interface specification (DOCSIS) signals, cable, and/or or satellite television signals.

Abstract translation: 用于交叉协议时间同步的方法和系统可以包括例如在基于房屋的网络中，由房屋中的根节点网络控制器接收符合一个或多个第一通信协议的信号。 接收到的信号可以被桥接以符合与第一通信协议不同的第二通信协议，并且桥接信号可以被传送到网络内的网络设备，其中只有符合第二通信协议的信号可以通过网络同时传送 在第一通信协议的频率范围内，在第二通信协议的频率范围内，由第一通信协议使用的频率范围与第二通信协议使用的频率范围不同，不与其重叠。 第一通信协议信号可以包括通过电缆业务接口规范（DOCSIS）信号，电缆和/或卫星电视信号的数据。

公开(公告)号：US20150022673A1

公开(公告)日：2015-01-22

申请号：US14341880

申请日：2014-07-28

Applicant: MaxLinear, Inc.

Inventor： Timothy Gallagher ,  Patrick Tierney ,  Jun Huang

IPC: H04N17/00

CPC classification number: H04L43/08 ,  H04B17/309 ,  H04L12/66 ,  H04N17/00

Abstract: A system, such as a satellite reception assembly or customer premises gateway, may comprise an analog-to-digital converter operable to digitize a signal spanning an entire television spectrum (e.g., cable television spectrum or satellite television spectrum) comprising a plurality of television channels. The system may comprise a signal monitor operable to analyze a signal to determine a characteristic of the signal. The system may comprise a data processor operable to process a television channel to recover content carried on the television channel. The system may comprise a channelizer operable to select first and second portions of the signal, and concurrently output the first portion to the signal monitor and the second portion to the data processor.

Abstract translation: 诸如卫星接收组件或客户驻地网关的系统可以包括可操作用于数字化跨越整个电视频谱（例如，有线电视频谱或卫星电视频谱）的信号的模数转换器，其包括多个电视频道 。 该系统可以包括可操作以分析信号以确定信号的特性的信号监视器。 该系统可以包括可操作以处理电视频道以恢复在电视频道上携带的内容的数据处理器。 该系统可以包括可操作以选择信号的第一和第二部分的信道化器，并且同时将第一部分输出到信号监视器，并将第二部分输出到数据处理器。

公开(公告)号：US20140077981A1

公开(公告)日：2014-03-20

申请号：US14087710

申请日：2013-11-22

Applicant: MaxLinear, Inc.

Inventor： Mansour Rachid ,  Timothy Gallagher ,  Curtis Ling

IPC: H03M1/10 ,  H03M1/12

CPC classification number: H03M1/1038 ,  H03M1/12

Abstract: Methods and systems are provided for calibrating nonlinearity correction during analog-to-digital conversions on received analog signals. Correction-parameters may be estimated, such as to reduce, when applied to total spectral content, distortion resulting from the nonlinearity in originally-unoccupied spectral regions. Digital signals generated based on sampling of the received analog signals may then be corrected, to remove nonlinearity related distortion, based on the estimated correction-parameters. The nonlinearity correction calibration may be performed during reception and handling of the analog signals. The correction-parameters may be generated based on signals located in particular spectral regions, such as the originally-unoccupied spectral regions. These signals may be injected within the device, into the particular spectral regions, and the signal may have known characteristics to enable estimating the required correction.

Abstract translation: 提供的方法和系统用于在接收到的模拟信号的模数转换期间校准非线性校正。 可以估计校正参数，例如当应用于总光谱内容时，减少由原始未占用的光谱区域中的非线性引起的失真。 然后可以基于所估计的校正参数来校正基于接收到的模拟信号的采样产生的数字信号以去除非线性相关的失真。 可以在模拟信号的接收和处理期间执行非线性校正校准。 校正参数可以基于位于特定光谱区域（例如原始未被占用的光谱区域）的信号产生。 这些信号可以在设备内注入到特定的光谱区域中，并且该信号可以具有已知的特性以使得能够估计所需的校正。

公开(公告)号：US20140056316A1

公开(公告)日：2014-02-27

申请号：US14040875

申请日：2013-09-30

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04L12/12

CPC classification number: H04L12/2863 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/2861 ,  H04L12/2865 ,  H04L47/10 ,  H04L47/22 ,  H04L47/41 ,  Y02D50/30

Abstract: Methods and apparatus for power control in a communications device are described. Bonding of channels in a modem may be dynamically adjusted responsive to user activity or demand for bandwidth. Bonded channel Configurations may be adjusted to single channel configurations for low power operation. Modem configuration may be dynamically adjusted so as to maintain only required synchronization and system information to facilitate rapid data transfer resumption upon demand.

Abstract translation: 描述通信设备中功率控制的方法和装置。 响应于用户活动或对带宽的需求，可以动态地调整调制解调器中的信道的绑定。 绑定通道可以将配置调整为单通道配置，以实现低功耗操作。 可以动态调整调制解调器配置，以便仅维护所需的同步和系统信息，以便于在需要时快速恢复数据传输。

公开(公告)号：US20140026176A1

公开(公告)日：2014-01-23

申请号：US13948417

申请日：2013-07-23

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04N21/61

CPC classification number: H04N21/6338 ,  H04H20/78 ,  H04H60/32 ,  H04H60/97 ,  H04N21/6118 ,  H04N21/6156 ,  H04N21/6168 ,  H04N21/64761 ,  H04N21/64769

Abstract: A coupling device for use in a hybrid fiber coaxial (HFC) network may be configured to disable an upstream path through it when there is only noise incident on the upstream path, and enable the upstream path through it when a desired transmission from a cable modem downstream of the coupling device is incident on the upstream path. The coupling device may be a trunk amplifier, a distribution amplifier, a splitter, or the like. The coupling device may comprise a single upstream interface coupled to a plurality of downstream interfaces. The enabling and/or disabling may be in response to a signal strength indicated by the SSI being below a threshold and/or in response to one or more control messages indicating whether any downstream cable modem is, or will be, transmitting.

Abstract translation: 用于混合光纤同轴（HFC）网络的耦合装置可以被配置为当仅有入射在上游路径上的噪声时禁止通过它的上游路径，并且当来自电缆调制解调器的所需传输时使得能够通过它的上行路径 耦合装置的下游入射在上游路径上。 耦合装置可以是干线放大器，分配放大器，分路器等。 耦合设备可以包括耦合到多个下游接口的单个​​上游接口。 启用和/或禁用可以响应于由SSI指示的信号强度低于阈值和/或响应于指示是否或将要发送的任何下游电缆调制解调器的一个或多个控制消息。

公开(公告)号：US10862702B2

公开(公告)日：2020-12-08

申请号：US14695261

申请日：2015-04-24

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04L12/28 ,  H04L12/801 ,  H04L12/815 ,  H04L12/891 ,  H04L12/12

Abstract: Methods and systems are provided for power control in communications devices. Bonding of channels in communication devices may be dynamically adjusted, such as responsive to requests for bandwidth adjustment. For example, bonded channel configurations may be adjusted based on power, such as to single channel configurations (or to channel configurations with small number of channels, such as relative to current configurations) for low power operations. Components (or functions thereof) used in conjunction with receiving and/or processing bonded channels may be dynamically adjusted. Such dynamic adjustments may be performed, for example, such as to maintain required synchronization and system information to facilitate rapid data transfer resumption upon demand.