公开(公告)号：US09634701B2

公开(公告)日：2017-04-25

申请号：US15172467

申请日：2016-06-03

Applicant: Maxlinear, Inc.

Inventor： Stephane Laurent-Michel ,  Curtis Ling

IPC: H04B1/10 ,  H04L5/00 ,  H04B17/00 ,  H04L1/24 ,  H04L27/00

CPC classification number: H04L27/122 ,  H04B1/1027 ,  H04B17/0085 ,  H04L1/24 ,  H04L5/00 ,  H04L5/0048 ,  H04L27/0006

Abstract: A system comprises a modulator circuit, a test signal generator circuit, and a control circuit. The modulator circuit is operable to generate a data-carrying signal based on a reference signal. The test signal generator circuit is operable to generate a test signal based on the reference signal. The control circuit is operable to determine current status of a microwave backhaul link. The control circuit is operable to configure a nominal frequency at which the test signal generator circuit generates the test signal based on the determined status of the microwave backhaul link. The control circuit is operable to determine an amount of whitespace to have on either side of the test signal based on the current status of the microwave backhaul link. The control circuit is operable to configure the modulator circuit such that the data-carrying signal has the determined amount of whitespace surrounding the nominal frequency of the test signal.

公开(公告)号：US09609599B2

公开(公告)日：2017-03-28

申请号：US14450343

申请日：2014-08-04

Applicant: MaxLinear, Inc.

Inventor： James Qiu ,  Sridhar Ramesh ,  Sheng Ye ,  Curtis Ling

IPC: H04W52/02 ,  H04B1/10 ,  H04L1/20 ,  H03G3/20 ,  H04W88/02

CPC classification number: H04W52/0245 ,  H03G3/20 ,  H04B1/109 ,  H04B17/00 ,  H04L1/20 ,  H04L27/06 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/40

Abstract: A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER) or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.

公开(公告)号：US09565464B2

公开(公告)日：2017-02-07

申请号：US14988338

申请日：2016-01-05

Applicant: MaxLinear, Inc.

Inventor： Anand Anandakumar ,  Sheng Ye ,  Curtis Ling

IPC: G06F3/00 ,  H03K9/00 ,  H04N21/426 ,  H04N5/44 ,  H04N5/50 ,  H04N21/438 ,  H04N21/443 ,  H04N21/462 ,  H04N21/61

CPC classification number: H04N21/4263 ,  H04N5/44 ,  H04N5/50 ,  H04N21/4383 ,  H04N21/4436 ,  H04N21/4622 ,  H04N21/6143

Abstract: Methods and systems for multi-path video and network channels may comprise a communication device comprising a wideband path (WB) and a narrowband path (NB). A video channel and a network channel may be received in the WB when the device is operating in a first stage. A video channel and a network channel may be received in the WB and the network channel may also be received in the NB when the device is operating in a second stage. The network channel may be received in the NB when the device is operating in a third stage. The reception of the network channel from both the WB and NB may enable a continuous reception of the network channel in a transition between the first and third stages. The WB may be operable to receive a plurality of channels and the NB may be operable to receive a single channel.

Abstract translation: 用于多路径视频和网络信道的方法和系统可以包括包括宽带路径（WB）和窄带路径（NB）的通信设备。 当设备在第一阶段中操作时，可以在WB中接收视频信道和网络信道。 在WB中可以接收视频信道和网络信道，并且当设备在第二阶段中操作时，也可以在NB中接收网络信道。 当设备在第三阶段中操作时，可以在NB中接收网络信道。 来自WB和NB的网络信道的接收可以在第一和第三阶段之间的转变中实现网络信道的连续接收。 WB可以用于接收多个信道，并且NB可以用于接收单个信道。

公开(公告)号：US09559983B1

公开(公告)日：2017-01-31

申请号：US13851563

申请日：2013-03-27

Applicant: MaxLinear, Inc.

Inventor： Sridhar Ramesh ,  Timothy Leo Gallagher ,  Curtis Ling

IPC: H04L12/931

CPC classification number: H04L41/12 ,  H04L12/2801 ,  H04L12/4633 ,  H04L43/0811

Abstract: A network device may comprise a first connector for connecting to an external network in which upstream data over cable service interface specification (DOCSIS) signals are communicated using a first frequency band and downstream cable and/or DOCSIS signals are communicated using a second frequency band. The device may also comprise a second connector for connecting to an on-premises network, as well as circuitry residing in a signal path between the first connector and the second connector. The circuitry may be operable to permit the downstream cable and/or DOCSIS signals to pass from the first connector to the second connector, and to block the upstream DOCSIS signals from passing from the first connector to the second connector. The circuitry may be operable to transmit, via the second connector, non-DOCSIS signals into the on-premises network using the first frequency band.

Abstract translation: 网络设备可以包括用于连接到外部网络的第一连接器，其中使用第一频带传送电缆服务接口规范（DOCSIS）信号的上行数据，并且使用第二频带来传送下行电缆和/或DOCSIS信号。 该设备还可以包括用于连接到内部部署网络的第二连接器以及驻留在第一连接器和第二连接器之间的信号路径中的电路。 该电路可操作以允许下游电缆和/或DOCSIS信号从第一连接器传递到第二连接器，并阻止上游DOCSIS信号从第一连接器传递到第二连接器。 该电路可以用于经由第二连接器使用第一频带将非DOCSIS信号传输到本地网络。

公开(公告)号：US09549222B2

公开(公告)日：2017-01-17

申请号：US14719397

申请日：2015-05-22

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04N21/6338 ,  H04N21/61 ,  H04H20/78 ,  H04H60/97 ,  H04N21/647 ,  H04H60/32 ,  H04B1/10 ,  H04L1/20 ,  H04B15/00 ,  H03G3/34

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：US20170012723A1

公开(公告)日：2017-01-12

申请号：US15206049

申请日：2016-07-08

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh

IPC: H04B17/336 ,  H04L29/08

CPC classification number: H04L69/323 ,  H04B3/46

Abstract: A first Multimedia over Coax Alliance (MoCA) compatible device comprises a physical layer profiling circuit and a spectrum abstraction circuit. The physical layer profiling circuit may for example be operable to measure a performance metric for each of a plurality of subbands on a shared coaxial cable of a MoCA network. The spectrum abstraction circuit may for example be operable to select, based at least in part on the measured performance metric, a subset of the subbands to be used for communication over the coaxial cable between the first MoCA-compatible device and a second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to receive an indication of whether channel bonding is to be used for the communication over the coaxial cable between the first MoCA-compatible device and the second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to perform the selection of the subset of the subbands based at least in part on the indication of whether channel-bonding is to be used.

Abstract translation: 第一个多媒体同轴联盟（MoCA）兼容设备包括物理层分析电路和频谱抽象电路。 物理层分析电路例如可以用于测量MoCA网络的共享同轴电缆上的多个子带中的每一个的性能度量。 频谱抽象电路可以例如可操作以至少部分地基于测量的性能度量来选择要用于通过第一MoCA兼容设备和第二MoCA兼容设备之间的同轴电缆进行通信的子带的子集 设备。 频谱抽象电路可以例如可操作以接收信道绑定是否将用于通过第一MoCA兼容设备和第二MoCA兼容设备之间的同轴电缆的通信的指示。 频谱抽象电路可以例如可操作以至少部分地基于是否要使用信道绑定的指示来执行子带子集的选择。

公开(公告)号：US09543973B2

公开(公告)日：2017-01-10

申请号：US14925040

申请日：2015-10-28

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling

IPC: H04B1/40 ,  H03M1/00 ,  H03M1/12 ,  H03M1/66 ,  H03M1/18 ,  H03M1/36 ,  H03M1/70 ,  H03M1/74

CPC classification number: H03M1/002 ,  H03M1/12 ,  H03M1/188 ,  H03M1/36 ,  H03M1/66 ,  H03M1/70 ,  H03M1/74 ,  H04B1/40

Abstract: Aspects of a method and system for data converters having a transfer function with multiple operating zones. In some embodiments, an operating zone of the multiple operating zones is characterized by more stringent performance criteria than the other operating zones. Thus, such data converters may receive an input signal and generate an output signal from the input signal per the transfer function and the more stringent performance criteria in the appropriate operating zone.

Abstract translation: 具有多个操作区域的传递函数的数据转换器的方法和系统的方面。 在一些实施例中，多个操作区域的操作区域的特征在于比其他操作区域更严格的性能准则。 因此，这样的数据转换器可以接收输入信号并且根据传递函数从输入信号生成输出信号，并在适当的操作区域中产生更严格的性能标准。

公开(公告)号：US20160380796A1

公开(公告)日：2016-12-29

申请号：US15257135

申请日：2016-09-06

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher ,  Elad Shaked

IPC: H04L27/26

CPC classification number: H04L27/2614 ,  H04J2011/0009 ,  H04L27/2627

Abstract: A transmitter comprises a first peak-to-average-power ratio (PAPR) suppression circuit and a second peak-to-average-power ratio (PAPR) suppression circuit. The first PAPR suppression circuit may receive a first sequence of time-domain symbols to be transmitted, alter the first sequence based on each of a plurality of symbol ordering and/or inversion descriptors to generate a corresponding plurality of second sequences of time-domain symbols, measure a PAPR corresponding to each of the second sequences, select one of the plurality of symbol ordering and/or inversion descriptors based on the measurement of PAPR, and convey the selected one of the symbol ordering and/or inversion descriptors to the second PAPR suppression circuit. The second PAPR suppression circuit may receive the first sequence of time-domain symbols to be transmitted, and alter the first sequence based on the selected one of the symbol ordering and/or inversion descriptors to generate a reordered and/or inverted symbol sequence.

Abstract translation: 发射机包括第一峰值与平均功率比（PAPR）抑制电路和第二峰值与平均功率比（PAPR）抑制电路。 第一PAPR抑制电路可以接收要发送的第一时间域符号序列，基于多个符号排序和/或反转描述符中的每一个改变第一序列，以生成对应的多个第二时间序列的时域符号 测量与每个第二序列相对应的PAPR，基于PAPR的测量来选择多个符号排序和/或反演描述符中的一个，并将所选择的一个符号排序和/或反演描述符传送到第二PAPR 抑制电路。 第二PAPR抑制电路可以接收要发送的第一时间域符号序列，并且基于所选择的符号排序和/或反转描述符之一改变第一序列，以生成重新排序和/或反转的符号序列。

公开(公告)号：US20160373212A1

公开(公告)日：2016-12-22

申请号：US15185429

申请日：2016-06-17

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Sheng Ye

IPC: H04L1/00 ,  H04L7/00

CPC classification number: H04L7/0075 ,  H04B10/40 ,  H04B10/5057 ,  H04L1/0047 ,  H04L7/0079 ,  H04L25/03

Abstract: A method and system for duty-cycled high speed clock and data recovery with forward error correction are provided. The system operates on a first digital signal comprising a first plurality of samples and a second digital signal comprising a second plurality of samples. The second plurality of samples may be a subset of the first plurality of samples, for example, if the first and second pluralities of samples are generated by one analog-to-digital converter. A clock and data recovery module is operable to produce a timing indication according the second digital signal. The second plurality of samples is sampled intermittently. The discontinuity between bursts of samples in the second signal corresponds to a duty cycle. A forward error correction module is operable to produce a digital error-corrected signal according to the first digital signal and the timing indication.

Abstract translation: 提供了一种采用前向纠错的占空比高速时钟和数据恢复方法和系统。 该系统对包括第一多个样本的第一数字信号和包括第二多个样本的第二数字信号进行操作。 第二多个样本可以是第一多个样本的子集，例如，如果第一和第二多个采样由一个模数转换器产生。 时钟和数据恢复模块可操作以根据第二数字信号产生定时指示。 间歇地采样第二多个采样。 第二信号中样本脉冲之间的不连续性对应于占空比。 前向纠错模块可操作以根据第一数字信号和定时指示产生数字纠错信号。

公开(公告)号：US20160352407A1

公开(公告)日：2016-12-01

申请号：US15165816

申请日：2016-05-26

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling

IPC: H04B7/06

CPC classification number: H04B7/0617

Abstract: Methods and systems for hybrid radio frequency digital beamforming may include, in an electronic device comprising an antenna array including antennas arranged along first and second directions, beamforming signals in an analog domain along the first direction of the antenna array and beamforming signals in a digital domain along the second direction of the antenna array. The antenna array may include subsets of antennas, where each subset has a system-on-chip (SOC) with analog and digital beamforming circuitry. Signals may be beamformed in the analog domain by amplifying signals received by the antenna array using a configurable gain and shifting the phase of at least one of the amplified signals. The phase-shifted signals may be summed and converted to a digital signal. A frequency-dependent coefficient may be applied to the digital signal. The antenna array may have a fewer number of antennas along the first direction as compared to a number of antennas along the second direction.

Abstract translation: 用于混合射频数字波束成形的方法和系统可以包括在包括天线阵列的电子设备中，所述天线阵列包括沿着第一和第二方向布置的天线，沿着天线阵列的第一方向的模拟域中的波束成形信号和数字域中的波束成形信号 沿着天线阵列的第二方向。 天线阵列可以包括天线子集，其中每个子集具有带有模拟和数字波束成形电路的片上系统（SOC）。 可以通过使用可配置增益放大由天线阵列接收的信号并且移位至少一个放大信号的相位，来在模拟域中波束形成信号。 相移信号可以相加并转换为数字信号。 频率依赖系数可以应用于数字信号。 与沿着第二方向的多个天线相比，天线阵列可以沿着第一方向具有较少数量的天线。