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    A HEARING DEVICE COMPRISING AN AMPLIFIER SYSTEM FOR MINIMIZING VARIATION IN AN ACOUSTICAL SIGNAL CAUSED BY VARIATION IN GAIN OF AN AMPLIFIER
    2.
    发明公开
    A HEARING DEVICE COMPRISING AN AMPLIFIER SYSTEM FOR MINIMIZING VARIATION IN AN ACOUSTICAL SIGNAL CAUSED BY VARIATION IN GAIN OF AN AMPLIFIER 审中-公开
    一种包括放大器系统的听觉装置，用于最小化放大器增益变化引起的声音信号的变化

    公开(公告)号：EP3316480A1

    公开(公告)日：2018-05-02

    申请号：EP17198123.6

    申请日：2017-10-24

    申请人： Oticon A/S

    发明人： BHAT, Vijay Kumar ,  HENRIKSEN, Poul ,  PIEDRAS, Alberto Escolar

    IPC分类号： H03F1/30 ,  H03F1/32 ,  H03F3/181 ,  H03F3/217

    CPC分类号： H04R25/453 ,  H03F1/30 ,  H03F1/3258 ,  H03F1/3264 ,  H03F3/181 ,  H03F3/183 ,  H03F3/2175 ,  H03F2200/03 ,  H03F2200/321 ,  H03F2200/351 ,  H03F2200/375 ,  H03F2200/393 ,  H03F2200/471 ,  H03F2201/3212 ,  H03F2201/3227 ,  H04R25/505 ,  H04R25/602 ,  H04R2225/33 ,  H04R2225/43 ,  H04R2225/49

    摘要： The disclosure presents a method and an amplifier system for minimizing variation in an acoustical signal caused by variation in gain of an amplifier, comprising a battery for providing a supply voltage to the amplifier, a digital signal processor for providing the acoustical signal to the amplifier, a controller unit receiving an enablement signal when the supply voltage is in an offset mode, and based on the enablement signal requesting a measured voltage during a time period, and a first analog-to-digital converter configured for measuring the supply voltage to the amplifier when receiving the request from the controller unit or the first analog-to-digital converter is configured for measuring the supply voltage to the amplifier continuously, and where variations in the measured voltage relates to variations in the supply voltage during the time period. Furthermore, the controller unit is configured to predict offset modes (i.e. changes) in the supply voltage based on the enablement signals and a fitting of the measured voltages, and wherein the controller unit is configured to generate a compensating signal based on the fitting and transmit the compensating signal to the digital signal processor, the digital signal processor is then configured to minimize variation in the acoustical signal at the output of the amplifier by compensating the variation in gain of the amplifier based on the compensating signal.

    摘要翻译： 本公开提出了一种用于最小化由放大器的增益变化引起的声学信号的变化的方法和放大器系统，其包括用于向放大器提供电源电压的电池，用于向放大器提供声学信号的数字信号处理器， 控制器单元，其在电源电压处于偏移模式时接收启用信号，并且基于在一段时间内请求测量的电压的启用信号;以及第一模数转换器，被配置为测量到放大器的电源电压 当从控制器单元接收到请求或者第一模数转换器被配置用于连续地测量到放大器的供电电压并且其中测量的电压的变化与该时间段期间的供电电压的变化相关时。 此外，控制器单元被配置为基于启用信号和测量的电压的拟合来预测供电电压中的偏移模式（即变化），并且其中控制器单元被配置为基于拟合和传输来生成补偿信号 补偿信号给数字信号处理器，则数字信号处理器然后被配置成通过基于补偿信号补偿放大器的增益的变化来最小化放大器的输出处的声学信号的变化。

    SYSTEM ARCHITECTURE FOR SUPPORTING DIGITAL PRE-DISTORTION AND FULL DUPLEX IN CABLE NETWORK ENVIRONMENTS
    3.
    发明公开
    SYSTEM ARCHITECTURE FOR SUPPORTING DIGITAL PRE-DISTORTION AND FULL DUPLEX IN CABLE NETWORK ENVIRONMENTS 审中-公开
    用于支持有线网络环境中的数字预失真和全双工的系统体系结构

    公开(公告)号：EP3288182A1

    公开(公告)日：2018-02-28

    申请号：EP17167831.1

    申请日：2017-04-24

    申请人： Cisco Technology, Inc.

    发明人： JIN, Hang ,  CHAPMAN, John T.

    IPC分类号： H03F1/32 ,  H03F1/56 ,  H03F3/189 ,  H03F3/24

    CPC分类号： H03F1/3247 ,  H03F1/3258 ,  H03F1/56 ,  H03F3/189 ,  H03F2200/222 ,  H03F2200/387

    摘要： An example apparatus for supporting digital pre-distortion (DPD) and full duplex (FDX) in cable network environments is provided and includes a first path for signals being transmitted out of the apparatus, a second path for signals being received into the apparatus, a DPD actuator located on the first path, an amplifier located on the first path, an echo cancellation (EC) actuator located on the second path, and a data interface including a plurality of channels connecting the apparatus to a signal processor. DPD coefficients, EC coefficients and delay parameters are provided over the data interface from the signal processor to the apparatus. The DPD actuator predistorts signals on the first path using the DPD coefficients compensating for distortions introduced by the amplifier, and the EC actuator reduces interferences in signals on the second path using the EC coefficients and the delay parameters, facilitating FDX communication by the apparatus.

    摘要翻译： 提供了一种用于在有线网络环境中支持数字预失真（DPD）和全双工（FDX）的示例装置，其包括用于信号被传输出设备的第一路径，用于信号被接收到设备中的第二路径， 位于第一路径上的DPD致动器，位于第一路径上的放大器，位于第二路径上的回声消除（EC）致动器，以及包括将该装置连接至信号处理器的多个信道的数据接口。 通过从信号处理器到设备的数据接口提供DPD系数，EC系数和延迟参数。 DPD致动器使用补偿由放大器引入的失真的DPD系数对第一路径上的信号进行预失真，并且EC致动器使用EC系数和延迟参数减少第二路径上的信号中的干扰，从而有助于装置进行FDX通信。

    PRE-DISTORTION PROCESSING DEVICE AND METHOD
    4.
    发明公开
    PRE-DISTORTION PROCESSING DEVICE AND METHOD 审中-公开
    预矫正处理装置和方法

    公开(公告)号：EP3208938A1

    公开(公告)日：2017-08-23

    申请号：EP14906288.7

    申请日：2014-11-19

    申请人： Huawei Technologies Co. Ltd.

    发明人： ZHAO, Yanqing ,  YU, Chunlei ,  TIAN, Tingjian

    IPC分类号： H03F1/32

    CPC分类号： H04L27/368 ,  H03F1/3247 ,  H03F1/3258 ,  H03F1/3294 ,  H03F3/189 ,  H03F3/245 ,  H03F2200/102 ,  H03F2201/32 ,  H03F2201/3233 ,  H04L25/03343

    摘要： The present invention provides a predistortion processing apparatus and method. The apparatus includes: an auxiliary feedback module, configured to: extract a nonlinear distortion signal from an analog signal, and input an obtained feedback signal corresponding to the nonlinear distortion signal into an auxiliary model coefficient training module; the auxiliary model coefficient training module, configured to: train an auxiliary coefficient according to the feedback signal and a predistortion signal, and transmit a first auxiliary coefficient obtained through training to a predistortion processing module; a radio frequency signal feedback module, configured to extract a fundamental wave feedback signal; a predistortion model coefficient training module, configured to: train a predistortion coefficient according to the predistortion signal and the fundamental wave feedback signal, and transmit an obtained predistortion coefficient to the predistortion processing module; the predistortion processing module, configured to: perform predistortion processing on an input intermediate frequency signal by performing nonlinear modeling according to the first auxiliary coefficient and the predistortion coefficient, and output a predistortion signal obtained through predistortion processing.

    摘要翻译： 本发明提供一种预失真处理装置和方法。 该装置包括：辅助反馈模块，用于从模拟信号中提取非线性失真信号，并将得到的非线性失真信号对应的反馈信号输入辅助模型系数训练模块; 所述辅助模型系数训练模块，用于根据所述反馈信号和预失真信号对辅助系数进行训练，并将训练得到的第一辅助系数发送给预失真处理模块; 射频信号反馈模块，用于提取基波反馈信号; 预失真模型系数训练模块，用于根据预失真信号和基波反馈信号对预失真系数进行训练，并将得到的预失真系数发送给预失真处理模块; 所述预失真处理模块，用于通过根据所述第一辅助系数和所述预失真系数进行非线性建模，对输入的中频信号进行预失真处理，并输出预失真处理得到的预失真信号。

    CURVE FITTING CIRCUIT, ANALOG PREDISTORTER AND RADIO FREQUENCY SIGNAL TRANSMITTER
    5.
    发明公开
    CURVE FITTING CIRCUIT, ANALOG PREDISTORTER AND RADIO FREQUENCY SIGNAL TRANSMITTER 有权
    曲线拟合电路，模拟预失真器和射频信号发射器

    公开(公告)号：EP3197045A1

    公开(公告)日：2017-07-26

    申请号：EP14904793.8

    申请日：2014-10-31

    申请人： Huawei Technologies Co., Ltd.

    发明人： HUANG, Wei

    IPC分类号： H03F1/26 ,  G06F17/10

    CPC分类号： H03F1/3247 ,  G06F17/10 ,  G06F17/17 ,  H03F1/3258 ,  H03F3/189 ,  H03F3/19 ,  H03F3/20 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/451

    摘要： A curve fitting circuit, an analog predistorter, and a radio frequency signal transmitter are disclosed, so as to resolve a problem that, when radio frequency signal decomposition is performed by using an existing polynomial fitting method, a fitting result caused by frequent use of a higher order polynomial is very sensitive to both a higher order term coefficient and a quantization noise. Each segmentation processing circuit in the curve fitting circuit intercepts a part of a received input signal according to a preset rule, generates a to-be-processed signal according to the intercepted part, and generates q output signals according to the to-be-processed signal by using a polynomial fitting method. Parts intercepted by different segmentation processing circuits are not exactly the same. Each first adder circuit receives one signal in the q output signals of each segmentation processing circuit, and obtains one output signal of the curve fitting circuit according to a sum of received n signals. Different first adder circuits receive different output signals in q output signals of a same segmentation processing circuit.

    摘要翻译： 本发明公开了一种曲线拟合电路，模拟预失真器和射频信号发射器，以解决采用现有多项式拟合方法进行射频信号分解时，频繁使用a 高阶多项式对高阶项系数和量化噪声都非常敏感。 曲线拟合电路中的每个分割处理电路按照预设规则截取接收到的输入信号的一部分，根据截取的部分生成待处理信号，并根据待处理的信号生成q个输出信号 信号通过使用多项式拟合方法。 不同分割处理电路截取的部分不完全相同。 每个第一加法器电路接收每个分割处理电路的q个输出信号中的一个信号，并根据接收到的n个信号的和获得曲线拟合电路的一个输出信号。 不同的第一加法器电路在同一分段处理电路的q个输出信号中接收不同的输出信号。

    ANTI SNAPBACK FILTER
    7.
    发明公开
    ANTI SNAPBACK FILTER 有权
    过滤麻省理工学院RüCKSCHNAPPSCHUTZ

    公开(公告)号：EP3082257A1

    公开(公告)日：2016-10-19

    申请号：EP15305580.1

    申请日：2015-04-17

    申请人： ALCATEL LUCENT

    发明人： Rixain, Michel ,  Peyrot, Hervé ,  Gascon, Jean-Francois

    IPC分类号： H03F1/32 ,  H03F1/52 ,  H03F3/195 ,  H03F3/24 ,  H04B1/04

    CPC分类号： H03F3/245 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3258 ,  H03F1/34 ,  H03F1/523 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/171 ,  H04B1/0475 ,  H04B2001/0425 ,  H04B2001/0433

    摘要： An amplification device (4) comprising a predistortion loop (7), said predistortion loop (7) including:
    • a predistortion module (8), adapted to provide a predistorded output signal (10) from a received input signal (5A),
    • a power amplifier (14), comprising at least one semiconductor electronic component, and
    • means (16) for filtering the predistorded output signal (10), said means (16) being connected between the predistortion module (8) and the power amplifier (14) and being adapted to provide a filtered signal (35) to the power amplifier (14), said means (16) being configured to increase the rise time of any peak signal whose initial rise time is less than or equal to a predefined time value, said peak signal being contained in the predistorded output signal (10), and to provide the resulting peak signal within the filtered signal (35) so as to protect the or each semiconductor electronic component, said resulting peak signal having a rise time greater than said predefined time value.
    A particular example of peak signals whose initial rise time is less than or equal to a predefined time value of 10 ns are spikes. The amplification device (4) according to this invention notably intends to protect the power amplifier (14) from the harmful effects of such spikes.

    摘要翻译： 一种包括预失真循环（7）的放大装置（4），所述预失真循环（7）包括：预失真模块（8），适于从接收的输入信号（5A）提供预失真的输出信号（10） 一种功率放大器（14），包括至少一个半导体电子部件，和用于对预失真输出信号（10）进行滤波的装置（16），所述装置（16）连接在预失真模块（8）和 功率放大器（14），并且适于向功率放大器（14）提供经滤波的信号（35），所述装置（16）被配置为增加其初始上升时间小于或等于的任何峰值信号的上升时间 预定义的时间值，所述峰值信号被包含在预失真输出信号（10）中，并且在滤波信号（35）内提供所得到的峰值信号，以保护该或每个半导体电子元件，所得到的峰值信号具有 上升时间大于predef 入住时间价值。 其初始上升时间小于或等于10ns的预定义时间值的峰值信号的特定示例是尖峰。 根据本发明的放大装置（4）特别旨在保护功率放大器（14）免受这种尖峰的有害影响。

    METHOD AND SYSTEM FOR UPDATING PREDISTORTION COEFFICIENT
    8.
    发明公开
    METHOD AND SYSTEM FOR UPDATING PREDISTORTION COEFFICIENT 有权
    方法和系统，以更新预失真

    公开(公告)号：EP2938034A4

    公开(公告)日：2016-09-28

    申请号：EP13872950

    申请日：2013-12-30

    申请人： DATANG MOBILE COMM EQUIP CO

    发明人： XIONG JUN ,  DUAN TAO ,  SUN HUARONG ,  XIAO PENG ,  WANG CE ,  WANG JIELI

    IPC分类号： H04L25/49 ,  H03F1/32 ,  H03F3/19 ,  H03F3/24 ,  H04B1/04

    CPC分类号： H04W52/243 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3258 ,  H03F3/19 ,  H03F3/245 ,  H03F2201/3233 ,  H04B1/0475 ,  H04L25/03343 ,  H04L25/49 ,  H04W52/16 ,  H04W52/52

    摘要： Disclosed is a method and a system for switching pre-distortion coefficients, which is used to solve the problem of interference with neighbor cells due to the inferior pre-distortion coefficients. The method comprises: presetting a primary table and a standby table, wherein the primary table stores default pre-distortion coefficients and the standby table stores updated pre-distortion coefficients; when a data source of a pre-distortion processor adopts the standby table, adopting the updated pre-distortion coefficients to perform parameter output processing to acquire pre-distortion parameters, and conveying the pre-distortion parameters and an input signal to the pre-distortion processor to process to acquire pre-distortion signals; conveying the pre-distortion signals through various signal processors to acquire a first signal, and determining the power data of the first signal; if the power data of the first signal is more than or equal to a setting range, continuing to adopt the standby table as the data source of the pre-distortion processor; and if the power data of the first signal is less than setting range, switching the data source of the pre-distortion processor to the primary table.