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    Broadband amplifier linearization using captured histogram data
    11.
    发明申请
    Broadband amplifier linearization using captured histogram data 有权
    使用捕获的直方图数据的宽带放大器线性化

    公开(公告)号：US20150117508A1

    公开(公告)日：2015-04-30

    申请号：US14140887

    申请日：2013-12-26

    Applicant: BROADCOM CORPORATION

    Inventor： Ramon Alejandro Gomez ,  Bruce Joseph Currivan ,  Lin He ,  Thomas Joseph Kolze ,  Franciscus Maria Leonardus van der Goes ,  Jun Wang

    IPC: H04L25/03

    CPC classification number: H04L25/03057 ,  H04L25/03343

    Abstract: A transmitter's operation is characterized using components having relatively low cost and low complexity. A device includes comparator(s) that compare a transmitter's analog output to predetermined level(s) to generate count(s) associated with analog output range bin(s). Each of the predetermined levels is associated with a corresponding one of the analog output range bins. A transfer function of the transmitter is generated using the comparison count values associated with the analog output range bin(s). A histogram may be generated from the comparison count values associated with the various analog output range bins. An equalizer is implemented to process data that will be transmitted by the transmitter. The equalizer uses equalizer parameter(s) that are selected based on the characterization of the transmitter (e.g., its transfer function, its histogram, etc.). The equalizer may use default or start up parameters until the transmitter's operation is characterized.

    Abstract translation: 发射机的操作特征在于使用具有相对较低成本和低复杂度的组件。 一种设备包括将发射机的模拟输出与预定电平进行比较以产生与模拟输出范围区相关联的计数的比较器。 每个预定电平与相应的一个模拟输出范围相关联。 使用与模拟输出范围bin相关联的比较计数值来生成发送器的传递函数。 可以从与各种模拟输出范围箱相关联的比较计数值生成直方图。 实现均衡器来处理将由发射机发射的数据。 均衡器使用基于发射机的表征选择的均衡器参数（例如，其传递函数，其直方图等）。 均衡器可以使用默认或启动参数，直到发射机的操作被表征为止。

    Noise localization within cable based communication systems
    12.
    发明授权
    Noise localization within cable based communication systems 有权
    基于电缆的通信系统中的噪声定位

    公开(公告)号：US09596041B2

    公开(公告)日：2017-03-14

    申请号：US14800177

    申请日：2015-07-15

    Applicant: BROADCOM CORPORATION

    Inventor： Bruce Joseph Currivan ,  Richard Stephen Prodan ,  Leo Montreuil ,  Thomas Joseph Kolze ,  Ramon Alejandro Gomez ,  Jonathan Sooki Min ,  Fang Lu ,  Donald George McMullin ,  Kevin Lee Miller ,  Peter Cangiane ,  Mark Edward Laubach

    IPC: H04L5/16 ,  H04B17/18 ,  H04L5/00 ,  H04B17/345 ,  H04L1/20 ,  H04L1/24 ,  H04B17/15 ,  H04B17/00 ,  H04B17/26 ,  H04B17/29 ,  H04L12/64 ,  H04B3/46

    CPC classification number: H04B17/18 ,  H04B3/46 ,  H04B17/0085 ,  H04B17/15 ,  H04B17/26 ,  H04B17/29 ,  H04B17/345 ,  H04L1/20 ,  H04L1/24 ,  H04L5/0007 ,  H04L2012/6421

    Abstract: A communication device (e.g., a cable modem (CM)) includes a digital to analog converter (DAC) and a power amplifier (PA) that generate a signal to be transmitting via a communication interface to another communication device (e.g., cable modem termination system (CMTS)). The CM includes diagnostic analyzer that samples the signal based on a fullband sample capture corresponding to a full bandwidth and/or a subset (e.g., narrowband) sample capture to generate a fullband and/or subset signal capture (e.g., of an upstream (US) communication channel between the CM and the CMTS). The diagnostic analyzer can be configured to generate sample captures of the signal based on any desired parameter(s), condition(s), and/or trigger(s). The CM then transmits the signal to the CMTS and the fullband and/or subset signal capture to the CMTS and/or a proactive network maintenance (PNM) communication device to determine at least one characteristic associated with performance of the US communication channel.

    Abstract translation: 通信设备（例如，电缆调制解调器（CM））包括数字到模拟转换器（DAC）和功率放大器（PA），其产生要经由通信接口发送到另一通信设备的信号（例如，电缆调制解调器终端 系统（CMTS））。 CM包括诊断分析器，其基于与全带宽和/或子集（例如，窄带）采样捕获相对应的全频带采样捕获来采样信号，以产生全频带和/或子集信号捕获（例如，上游（US ）CM和CMTS之间的通信通道）。 诊断分析器可以被配置为基于任何期望的参数，条件和/或触发来产生信号的采样捕获。 然后，CM将信号发送到CMTS，将全频带和/或子集信号捕捉发送到CMTS和/或主动网络维护（PNM）通信设备，以确定与美国通信信道的性能相关联的至少一个特性。

    FRAME ADAPTIVE DIGITAL TO ANALOG CONVERTER AND METHODS FOR USE THEREWITH
    18.
    发明申请
    FRAME ADAPTIVE DIGITAL TO ANALOG CONVERTER AND METHODS FOR USE THEREWITH 有权
    帧自适应数字到模拟转换器及其使用方法

    公开(公告)号：US20150341045A1

    公开(公告)日：2015-11-26

    申请号：US14814968

    申请日：2015-07-31

    Applicant: BROADCOM CORPORATION

    Inventor： Ramon Alejandro Gomez ,  Thomas Joseph Kolze ,  Bruce Joseph Currivan

    IPC: H03M1/74 ,  H03M1/06 ,  H03M1/66

    CPC classification number: H03M1/742 ,  H03M1/002 ,  H03M1/0648 ,  H03M1/662 ,  H03M1/68 ,  H03M1/747

    Abstract: A digital to analog converter (DAC) includes a thermometer coder that generates a plurality of micro-current source analog controls on a frame-by-frame or symbol-by-symbol basis and to process digital inputs from symbols or frames of data based on a thermometer coding to generate a plurality of micro-current source inputs. A plurality of micro-current sources generate a corresponding plurality of micro-current source outputs in response to the plurality of micro-current source inputs, wherein first selected ones of the plurality of micro-current sources are powered-off in response to the plurality of micro-current source analog controls for a first symbol or frame of the plurality of symbols or frames of data. A summing circuit generates an analog output based a sum of the corresponding plurality of micro-current source outputs.

    Abstract translation: 数模转换器（DAC）包括温度计编码器，其以逐帧或逐个符号为基础生成多个微电流源模拟控制，并且基于数据的符号或帧数据处理数字输入 编码为生成多个微电流源输入的温度计。 响应于多个微电流源输入，多个微电流源产生相应的多个微电流源输出，其中多个微电流源中的第一选择的一个微电流源响应于多个微电流源而被断电 用于多个符号或数据帧中的第一符号或帧的微电​​流源模拟控制。 求和电路基于对应的多个微电流源输出的和产生模拟输出。

    Trigger synchronized event for channel characterization within communication systems
    19.
    发明申请
    Trigger synchronized event for channel characterization within communication systems 有权
    触发同步事件，用于通信系统中的通道表征

    公开(公告)号：US20150092587A1

    公开(公告)日：2015-04-02

    申请号：US14502096

    申请日：2014-09-30

    Applicant: BROADCOM CORPORATION

    Inventor： Bruce Joseph Currivan ,  Roger Wayne Fish ,  Lisa Voigt Denney ,  Niki Roberta Pantelias

    IPC: H04B17/00 ,  H04L27/26 ,  H04B3/46 ,  H04W24/08 ,  H04J11/00

    CPC classification number: H04B17/0082 ,  H04B3/46 ,  H04L5/0007 ,  H04L5/008 ,  H04L5/0091 ,  H04L25/0228 ,  H04L25/0238 ,  H04L27/2605 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2655

    Abstract: A new protocol uses a trigger message to identify one or more symbols transmitted between a first and a second communication device. The first device generates and transmits a trigger message to the second device. This process may be initiated based on the first device receiving a measurement initiation message from another device (e.g., such as the second device or another device within the system). Then, the first device transmits a signal that includes those one or more symbols to the second device. Before or during transmission, the first device generates a first capture of those one or more symbols. After receipt of the transmission from the first device, the second device performs a second capture of those one or more symbols identified within the trigger message. Then, any device having the first and second captures can determine a characterization of the communication pathway between the first and second devices.

    Abstract translation: 新协议使用触发消息来识别在第一和第二通信设备之间传输的一个或多个符号。 第一设备生成并向第二设备发送触发消息。 该过程可以基于第一设备从另一设备（例如，诸如系统中的第二设备或另一设备）接收测量发起消息来启动。 然后，第一设备向第二设备发送包括那些一个或多个符号的信号。 在传输之前或期间，第一设备生成那些一个或多个符号的第一次捕获。 在从第一设备接收到传输之后，第二设备对触发消息内标识的那些一个或多个符号执行第二次捕获。 然后，具有第一和第二捕获的任何设备可以确定第一和第二设备之间的通信路径的表征。

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