High Efficiency Output Stage Amplification for Radio Frequency (RF) Transmitters
    1.
    发明申请
    High Efficiency Output Stage Amplification for Radio Frequency (RF) Transmitters 有权
    射频(RF)发射机的高效输出级放大

    公开(公告)号:US20140184339A1

    公开(公告)日:2014-07-03

    申请号:US13768713

    申请日:2013-02-15

    Abstract: Highly power efficient transmitter output stage designs are provided. In an embodiment, the probability density function (PDF) of an input signal is divided into a plurality of regions, and samples of the input signal are processed depending on the region of the PDF within which they fail. The PDF can be divided between an inner region corresponding to samples of the input signal that are within a predetermined amplitude range, and outer regions corresponding to samples of the input signal that are outside of the predetermined amplitude range. Samples of the input signal that fall in the inner region are processed by a class A biased amplifier and samples of the input signal that fall in the outer regions are processed by a class B biased amplifier. Output stage designs according to embodiments can be implemented as power amplifiers or power digital-to-analog converters (DACs).

    Abstract translation: 提供高功率发射机输出级设计。 在一个实施例中,输入信号的概率密度函数(PDF)被划分为多个区域,并且根据其中它们失败的PDF的区域来处理输入信号的采样。 PDF可以在对应于在预定幅度范围内的输入信号的样本的内部区域和对应于在预定幅度范围之外的输入信号的采样的外部区域之间划分。 落入内部区域的输入信号的样本由A类偏置放大器处理,落在外部区域的输入信号的采样由B类偏置放大器处理。 根据实施例的输出级设计可以被实现为功率放大器或功率数模转换器(DAC)。

    Noise localization within cable based communication systems
    2.
    发明申请
    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:US20160028496A1

    公开(公告)日:2016-01-28

    申请号:US14800177

    申请日:2015-07-15

    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。

    Upstream power amplifier
    4.
    发明申请
    Upstream power amplifier 有权
    上行功率放大器

    公开(公告)号:US20150043625A1

    公开(公告)日:2015-02-12

    申请号:US14457781

    申请日:2014-08-12

    Abstract: A communication device includes a communication interface, a number of variable power amplifiers (VPAs), and a processor. Some of the VPAs are configured to process analog signals to generate processed analog signals (e.g., each VPA configured to process one of the analog signals to generate one of the processed analog signals based on a respective VPA control signal). A composite VPA processes a summation of the processed analog signals, which are generated by certain of the VPA, to generate a processed composite signal based on a composite VPA control signal. The processor generates the a first, a second, and a composite VPA control signals based, at least in part, on configuration information from another communication device via the communication interface. The processor may be configured to consider other information as well, such as locally generated information (within the communication device), operational history, current operating conditions, etc.

    Abstract translation: 通信设备包括通信接口,多个可变功率放大器(VPA)和处理器。 一些VPA被配置为处理模拟信号以产生经处理的模拟信号(例如,每个VPA被配置为基于相应的VPA控制信号来处理模拟信号之一以产生经处理的模拟信号之一)。 复合VPA处理由某些VPA产生的经处理的模拟信号的总和,以基于复合VPA控制信号产生经处理的复合信号。 该处理器至少部分地基于来自另一通信设备的通信接口的配置信息来生成第一,第二和复合VPA控制信号。 处理器也可以被配置为考虑其他信息,诸如本地生成的信息(在通信设备内),操作历史,当前操作条件等。

    High efficiency output stage amplification for radio frequency (RF) transmitters
    5.
    发明授权
    High efficiency output stage amplification for radio frequency (RF) transmitters 有权
    射频(RF)发射机的高效输出级放大

    公开(公告)号:US08912937B2

    公开(公告)日:2014-12-16

    申请号:US13768713

    申请日:2013-02-15

    Abstract: Highly power efficient transmitter output stage designs are provided. In an embodiment, the probability density function (PDF) of an input signal is divided into a plurality of regions, and samples of the input signal are processed depending on the region of the PDF within which they fall. The PDF can be divided between an inner region corresponding to samples of the input signal that are within a predetermined amplitude range, and outer regions corresponding to samples of the input signal that are outside of the predetermined amplitude range. Samples of the input signal that fall in the inner region are processed by a class A biased amplifier and samples of the input signal that fall in the outer regions are processed by a class B biased amplifier. Output stage designs according to embodiments can be implemented as power amplifiers or power digital-to-analog converters (DACs).

    Abstract translation: 提供高功率发射机输出级设计。 在一个实施例中,输入信号的概率密度函数(PDF)被划分为多个区域,并且根据它们所在的PDF的区域来处理输入信号的采样。 PDF可以在对应于在预定幅度范围内的输入信号的样本的内部区域和对应于在预定幅度范围之外的输入信号的采样的外部区域之间划分。 落入内部区域的输入信号的样本由A类偏置放大器处理,落在外部区域的输入信号的采样由B类偏置放大器处理。 根据实施例的输出级设计可以被实现为功率放大器或功率数模转换器(DAC)。

    Noise localization within cable based communication systems
    6.
    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

    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。

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