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    USER EQUIPMENT AND METHOD FOR RADIO COMMUNICATION SYSTEM
    11.
    发明申请
    USER EQUIPMENT AND METHOD FOR RADIO COMMUNICATION SYSTEM 有权
    无线电通信系统的用户设备和方法

    公开(公告)号：US20130051212A1

    公开(公告)日：2013-02-28

    申请号：US13695526

    申请日：2011-04-28

    申请人： Hidetoshi Suzuki ,  Hiromasa Umeda ,  Takashi Okada

    发明人： Hidetoshi Suzuki ,  Hiromasa Umeda ,  Takashi Okada

    IPC分类号： H04B15/00 ,  H04L27/36

    CPC分类号： H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B2001/0441 ,  H04B2001/0491 ,  H04L27/2636 ,  H04L27/366

    摘要： User equipment includes a convertor that converts transmission target frequency domain signal into time domain signal; a quadrature modulator that applies quadrature modulation to the time domain signal; a cancellation signal generator that generates image leakage cancellation signal by converting image signal into time domain signal, and applying the quadrature modulation, wherein the image signal has a frequency component that is symmetrical to the transmission target signal with respect to center of transmission frequency range; an adjuster that monitors the frequency component of the image signal in output signal from the quadrature modulator, and that adjusts amplitude and a phase of image leakage cancellation signal so as to cancel the frequency component; and a combiner that combines output signal from the quadrature modulator with image leakage cancellation signal, and that provides a power amplifier with combined signal.

    摘要翻译： 用户设备包括将发射目标频域信号转换为时域信号的转换器; 正交调制器，对时域信号进行正交调制; 消除信号发生器，其通过将图像信号转换为时域信号并应用正交调制来生成图像泄漏消除信号，其中图像信号具有与发送目标信号相对于发送频率范围的中心对称的频率分量; 调节器，其监视来自正交调制器的输出信号中的图像信号的频率分量，并且调整图像泄漏消除信号的幅度和相位，以消除频率分量; 以及组合器，其将来自正交调制器的输出信号与图像泄漏消除信号组合，并且提供具有组合信号的功率放大器。

    RADIO TRANSMITTER AND ENVELOPE TRACKING POWER SUPPLY CONTROL METHOD
    12.
    发明申请
    RADIO TRANSMITTER AND ENVELOPE TRACKING POWER SUPPLY CONTROL METHOD 失效
    无线电发射机和信号跟踪电源控制方法

    公开(公告)号：US20120309333A1

    公开(公告)日：2012-12-06

    申请号：US13477108

    申请日：2012-05-22

    申请人： Hiroi Nambu ,  Masami Ohnishi

    发明人： Hiroi Nambu ,  Masami Ohnishi

    IPC分类号： H04B1/04

    CPC分类号： H04B1/0475 ,  H03F1/3223 ,  H03F3/24 ,  H04B2001/0441

    摘要： The envelope tracking power supply includes a plurality of variable voltage supplies. A power supply controller of a power amplifier controls the plurality of variable voltage supplies so as to precisely divide the power supply voltage in a high frequency area, based on the voltage distribution of a received transmitted base band signal, in order to maximize the power added efficiency of the power amplifier. The power supply controller includes a threshold memory including a plurality of first zones, and a frequency memory including a plurality of second zones. The power supply controller changes the threshold held in the first zones so that each second zone approaches the average of the second zones.

    摘要翻译： 包络跟踪电源包括多个可变电压源。 功率放大器的电源控制器控制多个可变电压源，以便基于所接收的发送的基带信号的电压分布来精确地划分高频区域中的电源电压，以便最大限度地增加功率 功率放大器的效率。 电源控制器包括包括多个第一区域的阈值存储器和包括多个第二区域的频率存储器。 电源控制器改变保持在第一区域中的阈值，使得每个第二区域接近第二区域的平均值。

    DC Power Control for Power Amplifiers
    13.
    发明申请
    DC Power Control for Power Amplifiers 有权
    功率放大器的直流电源控制

    公开(公告)号：US20120052823A1

    公开(公告)日：2012-03-01

    申请号：US12871094

    申请日：2010-08-30

    申请人： Andreas Langer

    发明人： Andreas Langer

    IPC分类号： H04B1/04

    CPC分类号： H04W52/52 ,  H03F1/0227 ,  H03F1/3223 ,  H03F3/24 ,  H03F2200/102 ,  H04B1/0475 ,  H04B2001/0441 ,  H04W52/02 ,  Y02D70/1262 ,  Y02D70/40

    摘要： Some embodiments of the present disclosure relate to transmission techniques that result in power savings relative to previous solutions. These techniques often transmit a signal-of-interest by using two paths, namely, a transmission path (which includes a power amplifier) and a control path. The signal-of-interest is evaluated in “fast-track” fashion on the control path, such that the control path can “tune” a DC supply signal provided to the power amplifier. Thus, when a delayed version of the signal-of-interest is provided over the transmission path to the power amplifier, the DC supply signal provided to the power amplifier helps ensure that the power amplifier has “just enough” DC supply to ensure reliable operation without dissipating excess power. In this way, the techniques disclosed herein help to reduce power consumption in transmitters, thereby potentially helping to extend battery life and reduce undesired heating for users.

    摘要翻译： 本公开的一些实施例涉及相对于先前的解决方案导致功率节省的传输技术。 这些技术通常通过使用两条路径传输感兴趣的信号，即传输路径（包括功率放大器）和控制路径。 在控制路径上以“快速”方式评估感兴趣的信号，使得控制路径可以“调谐”提供给功率放大器的DC电源信号。 因此，当在功率放大器的传输路径上提供感兴趣的信号的延迟版本时，提供给功率放大器的DC电源信号有助于确保功率放大器具有“足够”的直流电源以确保可靠的操作 而不会耗散多余的电力。 以这种方式，本文公开的技术有助于降低发射机中的功率消耗，从而潜在地有助于延长电池寿命并减少用户的不期望的加热。

    POWER AMPLIFIER
    14.
    发明申请
    POWER AMPLIFIER 审中-公开
    功率放大器

    公开(公告)号：US20120032738A1

    公开(公告)日：2012-02-09

    申请号：US13265616

    申请日：2010-02-01

    申请人： Kazuhiro Uchiyama

    发明人： Kazuhiro Uchiyama

    IPC分类号： H03F3/68

    CPC分类号： H03F1/0288 ,  H03F1/3223 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/195 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/451 ,  H03G3/3042 ,  H04B1/0483 ,  H04B2001/0441

    摘要： An efficient power amplifier with a design which, even in cases when the phase characteristics of high frequency devices used in a main amp and peaking amp differ, reduces the combination loss of the two amps at a wide range of output levels. A class AB power amplifier (103) using an LDMOS device amplifies divided input signals, and a class AB power amplifier (104) using a GaN device amplifies the signals output from the power amplifier (103). Further, a class C power amplifier (107) using a GaN device amplifies ?/4 delayed input signals, and a class C power amplifier (108) using an LDMOS device amplifies the signals output from the power amplifier (107). A combining circuit (109) combines the signals which were amplified by the power amplifier (108) with the signals which were amplified by the power amplifier (104) and subjected to impedance conversion by an impedance converter circuit (105).

    摘要翻译： 具有设计的高效功率放大器，即使在主放大器和峰值放大器中使用的高频器件的相位特性不同的情况下，也可以在宽范围的输出电平下降低两个放大器的组合损耗。 使用LDMOS器件的AB类功率放大器（103）放大分割的输入信号，并且使用GaN器件的AB类功率放大器（104）放大从功率放大器（103）输出的信号。 此外，使用GaN器件的C类功率放大器（107）放大π/ 4延迟的输入信号，并且使用LDMOS器件的C类功率放大器（108）放大从功率放大器（107）输出的信号。 组合电路（109）将由功率放大器（108）放大的信号与由功率放大器（104）放大并被阻抗转换器电路（105）进行阻抗转换的信号组合。

    Tuneable circuit for canceling third order modulation
    16.
    发明授权
    Tuneable circuit for canceling third order modulation 有权
    用于消除三阶调制的调谐电路

    公开(公告)号：US07710185B2

    公开(公告)日：2010-05-04

    申请号：US11569021

    申请日：2005-05-12

    申请人： Tajinder Manku

    发明人： Tajinder Manku

    IPC分类号： G06F7/44 ,  G06G7/16

    CPC分类号： H03K5/1252 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03F1/3211 ,  H03F1/3223 ,  H03F3/24 ,  H03F3/45183 ,  H03F2200/372 ,  H03F2200/87 ,  H03F2203/45318 ,  H03F2203/45366 ,  H03F2203/45498 ,  H03F2203/45544 ,  H03K5/02 ,  H04B1/0475 ,  H04B1/123 ,  H04B2001/0441

    摘要： A CMOS transconductor for cancelling third-order intermodulation is provided. The transconductor includes a transconductance circuit and a tuneable distortion circuit. The transconductance circuit takes an input voltage and generates an output current having a transconductance element and an IM3 element. The distortion circuit takes the same input voltage and generates a current having an IM3 element of equal amplitude and opposite phase to the IM3 element of the transconductance circuit. A controller circuit tunes the distortion circuit to adjust its IM3 element to substantially equal the amplitude of the IM3 of the transconductance circuit. The distortion and transconductance circuits are arranged to sum their output currents thereby effectively cancelling the IM3 elements, leaving the transconductance relatively unmodified.

    摘要翻译： 提供了用于消除三阶互调的CMOS跨导体。 跨导体包括跨导电路和可调谐失真电路。 跨导电路采用输入电压并产生具有跨导元件和IM3元件的输出电流。 失真电路采用相同的输入电压，并产生具有与跨导电路的IM3元件相等幅度和相反相位的IM3元件的电流。 控制器电路调谐失真电路以将其IM3元件调整为基本上等于跨导电路的IM3的振幅。 失真和跨导电路被布置为对其输出电流求和，从而有效地消除IM3元件，从而使跨导相对未被修改。

    Open-loop RF transmitter output power control for increased power efficiency
    18.
    发明授权
    Open-loop RF transmitter output power control for increased power efficiency 失效
    开环射频发射机输出功率控制，提高功率效率

    公开(公告)号：US07420421B1

    公开(公告)日：2008-09-02

    申请号：US11387083

    申请日：2006-03-16

    申请人： Donald Y. C. Lie ,  Jeremy Daniel Popp

    发明人： Donald Y. C. Lie ,  Jeremy Daniel Popp

    IPC分类号： H03F3/04

    CPC分类号： H03F3/24 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/3223 ,  H03F2200/321 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2200/78 ,  H04B2001/0441

    摘要： Open-Loop RF Transmitter Output Power Control for Increased Power Efficiency (NC#97507) system includes microprocessor, battery, bias control circuitry, supply control circuitry and power amplifier. Microprocessor receives desired RF output power and battery voltage value and transmits bias control voltage and supply control voltage. Bias control circuitry is operatively coupled to microprocessor and receives bias control voltage and transmits bias output voltage. Supply control circuitry is operatively coupled to battery and microprocessor, and receives battery voltage and supply control voltage, and transmits supply collector voltage. Power amplifier is operatively coupled to supply control circuitry and bias control circuitry via inductor, and receives supply collector voltage and bias output voltage, and transmits RF output signal in response to RF input signal, supply collector voltage and bias output voltage.

    摘要翻译： 开环射频发射器输出功率控制，提高功率效率（NC＃97507）系统包括微处理器，电池，偏置控制电路，电源控制电路和功率放大器。 微处理器接收所需的RF输出功率和电池电压值，并发送偏置控制电压和电源控制电压。 偏置控制电路可操作地耦合到微处理器并接收偏置控制电压并传输偏置输出电压。 电源控制电路可操作地耦合到电池和微处理器，并且接收电池电压和电源控制电压，并传送集电极电压。 功率放大器可操作地耦合到通过电感器提供控制电路和偏置控制电路，并且接收电源集电极电压和偏置输出电压，并响应于RF输入信号，集电极电压和偏置输出电压来传输RF输出信号。

    Programmable hybrid transmitter
    20.
    发明申请
    Programmable hybrid transmitter 有权
    可编程混合发射机

    公开(公告)号：US20070223625A1

    公开(公告)日：2007-09-27

    申请号：US11494682

    申请日：2006-07-26

    申请人： Ahmadreza (Reza) Rofougaran

    发明人： Ahmadreza (Reza) Rofougaran

    IPC分类号： H04L27/12

    CPC分类号： H04B1/0475 ,  H03F1/3223 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433 ,  H04B2001/0441

    摘要： A programmable hybrid transmitter includes a baseband processing module, an up-conversion module, and a power amplifier circuit. The baseband processing module is coupled to convert outbound data into a complex signal when the programmable hybrid transmitter is in a first mode and to convert the outbound data into a normalized complex signal, offset information, and/or transmit property information when the programmable hybrid transmitter is in a second mode. The up-conversion module is coupled to mix the complex signal with a local oscillation to produce an up-converted signal when the programmable hybrid transmitter is in the first mode and to mix the normalized complex signal with the local oscillation based on the offset information to produce a normalized up-converted signal when the programmable hybrid transmitter is in the second mode. The power amplifier circuit is coupled to amplify the up-converted signal to produce an outbound RF signal when the programmable hybrid transmitter is in the first mode and to amplify the normalized up-converted signal based on the transmit property information to produce the outbound RF signal when the programmable hybrid transmitter is in the second mode.

    摘要翻译： 可编程混合发射机包括基带处理模块，上变频模块和功率放大器电路。 当可编程混合发射机处于第一模式时，基带处理模块被耦合以将出站数据转换成复信号，并且当可编程混合发射机 处于第二模式。 上变频模块被耦合以将复信号与本地振荡混合以在可编程混合发射机处于第一模式时产生上变频信号，并且基于偏移信息将归一化复信号与本地振荡混合， 当可编程混合发射机处于第二模式时，产生归一化的上变频信号。 当可编程混合发射机处于第一模式时，功率放大器电路被耦合以放大上变频信号以产生出站RF信号，并且基于发射属性信息放大归一化的上变频信号以产生出站RF信号 当可编程混合发射机处于第二模式时。