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    Apparatus and method for power transmitter in wireless communication system
    1.
    发明授权
    Apparatus and method for power transmitter in wireless communication system 有权
    无线通信系统中功率发射机的装置及方法

    公开(公告)号：US08107904B2

    公开(公告)日：2012-01-31

    申请号：US12391774

    申请日：2009-02-24

    申请人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    发明人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    IPC分类号： H01Q11/12

    CPC分类号： H03G3/3042 ,  H03C5/00 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/15 ,  H03F2200/511 ,  H03G3/004

    摘要： An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current.

    摘要翻译： 提供了消除和消除信封（EER）功率发射器的装置和方法。 该装置包括用于将发射信号分解为振幅分量和相位分量的信号分离器，用于将相位分量调制为射频（RF）信号的正交调制器，用于线性放大振幅分量的偏置调制器，用于确定 根据幅度分量的大小，将偏置电压提供给高效率功率放大器和用于使用线性放大振幅分量放大RF信号的高效率功率放大器作为漏极 使用发电电流作为漏极偏置电流。

    APPARATUS AND METHOD FOR POWER TRANSMITTER IN WIRELESS COMMUNICATION SYSTEM
    2.
    发明申请
    APPARATUS AND METHOD FOR POWER TRANSMITTER IN WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中发射机的设备及方法

    公开(公告)号：US20090215413A1

    公开(公告)日：2009-08-27

    申请号：US12391774

    申请日：2009-02-24

    申请人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    发明人： Cheol-Woo Ahn ,  Keun-Hyo Song ,  Cheol-Soo Seo ,  Young-Yoon Woo ,  Bum-Man Kim ,  Il-Du Kim

    IPC分类号： H04B1/04

    CPC分类号： H03G3/3042 ,  H03C5/00 ,  H03F1/0227 ,  H03F3/245 ,  H03F2200/15 ,  H03F2200/511 ,  H03G3/004

    摘要： An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current.

    摘要翻译： 提供了消除和消除信封（EER）功率发射器的装置和方法。 该装置包括用于将发射信号分解为振幅分量和相位分量的信号分离器，用于将相位分量调制为射频（RF）信号的正交调制器，用于线性放大振幅分量的偏置调制器，用于确定 根据幅度分量的大小，将偏置电压提供给高效率功率放大器和用于使用线性放大振幅分量放大RF信号的高效率功率放大器作为漏极 使用发电电流作为漏极偏置电流。

    Apparatus for improving performance at low power region in a Doherty amplifier
    5.
    发明授权
    Apparatus for improving performance at low power region in a Doherty amplifier 有权
    用于改善Doherty放大器低功率区域性能的装置

    公开(公告)号：US08188789B2

    公开(公告)日：2012-05-29

    申请号：US13035086

    申请日：2011-02-25

    申请人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    发明人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    IPC分类号： H03F3/68

    CPC分类号： H03F1/0288

    摘要： A method and apparatus improve the performance of a carrier amplifier in a Doherty amplifier. The Doherty amplifier includes a power divider, a carrier amplifier, at least one peaking amplifier, offset lines, and a Doherty circuit. The power divider provides a power signal to each of the carrier amplifier and the at least one peaking amplifier. The carrier amplifier amplifies power of a signal inputted from the power divider. The at least one peaking amplifier amplifies power of a signal inputted from the power divider. The offset lines control a load impedance when the at least one peaking amplifier does not operate. When the at least one peaking amplifier does not operate, the Doherty circuit generates the load impedance of the carrier amplifier that is larger than twice a load impedance at the maximum output power of the carrier amplifier.

    摘要翻译： 一种方法和装置改善了Doherty放大器中载波放大器的性能。 Doherty放大器包括功率分配器，载波放大器，至少一个峰化放大器，偏移线和Doherty电路。 功率分配器向每个载波放大器和至少一个峰化放大器提供功率信号。 载波放大器放大从功率分配器输入的信号的功率。 至少一个峰值放大器放大从功率分配器输入的信号的功率。 当至少一个峰值放大器不工作时，偏移线控制负载阻抗。 当至少一个峰化放大器不工作时，Doherty电路在载波放大器的最大输出功率下产生大于负载阻抗的两倍的载波放大器的负载阻抗。

    APPARATUS FOR IMPROVING PERFORMANCE AT LOW POWER REGION IN A DOHERTY AMPLIFIER
    6.
    发明申请
    APPARATUS FOR IMPROVING PERFORMANCE AT LOW POWER REGION IN A DOHERTY AMPLIFIER 有权
    用于改善DOHERTY AMPLIFIER中低功率区域性能的设备

    公开(公告)号：US20110204974A1

    公开(公告)日：2011-08-25

    申请号：US13035086

    申请日：2011-02-25

    申请人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    发明人： Young-Yoon Woo ,  Han-Seok Kim ,  Dong-Geun Lee ,  Bum-Man Kim ,  Jung-Hwan Moon

    IPC分类号： H03F3/68 ,  H03F1/56

    CPC分类号： H03F1/0288

    摘要： A method and apparatus improve the performance of a carrier amplifier in a Doherty amplifier. The Doherty amplifier includes a power divider, a carrier amplifier, at least one peaking amplifier, offset lines, and a Doherty circuit. The power divider provides a power signal to each of the carrier amplifier and the at least one peaking amplifier. The carrier amplifier amplifies power of a signal inputted from the power divider. The at least one peaking amplifier amplifies power of a signal inputted from the power divider. The offset lines control a load impedance when the at least one peaking amplifier does not operate. When the at least one peaking amplifier does not operate, the Doherty circuit generates the load impedance of the carrier amplifier that is larger than twice a load impedance at the maximum output power of the carrier amplifier.

    摘要翻译： 一种方法和装置改善了Doherty放大器中载波放大器的性能。 Doherty放大器包括功率分配器，载波放大器，至少一个峰化放大器，偏移线和Doherty电路。 功率分配器向每个载波放大器和至少一个峰化放大器提供功率信号。 载波放大器放大从功率分配器输入的信号的功率。 至少一个峰值放大器放大从功率分配器输入的信号的功率。 当至少一个峰值放大器不工作时，偏移线控制负载阻抗。 当至少一个峰化放大器不工作时，Doherty电路在载波放大器的最大输出功率下产生大于负载阻抗的两倍的载波放大器的负载阻抗。

    Input matching apparatus and method for power amplifier using delta-sigma modulated signal
    7.
    发明申请
    Input matching apparatus and method for power amplifier using delta-sigma modulated signal 有权
    使用Δ-Σ调制信号的功率放大器的输入匹配装置和方法

    公开(公告)号：US20070013441A1

    公开(公告)日：2007-01-18

    申请号：US11487200

    申请日：2006-07-14

    申请人： Dong-Geun Lee ,  Bum-Man Kim ,  Jeong-Hyeon Cha

    发明人： Dong-Geun Lee ,  Bum-Man Kim ,  Jeong-Hyeon Cha

    IPC分类号： H03F3/38 ,  H03F1/36

    CPC分类号： H03F3/217 ,  H03F2200/331

    摘要： An apparatus and method amplifies a delta-sigma modulated signal and delivers the amplified signal to a power amplifier without distortion in a communication system. The apparatus receives a delta-sigma modulated signal, phase-delays the received delta-sigma modulated signal by a multiple of 360° for a bandwidth of the delta-sigma modulated basic signal, and amplifies the phase-delayed signal, facilitating implementation of a high-efficiency delta-sigma modulation-based amplification system.

    摘要翻译： 一种装置和方法放大delta-sigma调制信号，并将放大的信号传送到功率放大器，而不会在通信系统中产生失真。 该装置接收Δ-Σ调制信号，对于Δ-Σ调制的基本信号的带宽，将接收的Δ-Σ调制信号相位延迟360度的倍数，并且放大相位延迟信号，便于实现 基于高效率Δ-Σ调制的放大系统。

    Power transmission apparatus in wireless communication systems
    8.
    发明授权
    Power transmission apparatus in wireless communication systems 有权
    无线通信系统中的电力传输装置

    公开(公告)号：US07924939B2

    公开(公告)日：2011-04-12

    申请号：US12031891

    申请日：2008-02-15

    申请人： Han-Seok Kim ,  Jin-Sung Kim ,  Bum-Man Kim

    发明人： Han-Seok Kim ,  Jin-Sung Kim ,  Bum-Man Kim

    IPC分类号： H04L27/00

    CPC分类号： H04B1/0483

    摘要： An envelope elimination and restoration power transmission apparatus in a wireless communication system is provided. The apparatus comprises a signal processor for dividing a transmission signal into a size component and a phase component and for generating a control signal for controlling a current of a bias modulator according to the size component, the bias modulator for amplifying the size component according to the control signal supplied from the signal processor, for lowering an impedance characteristic of the amplified size component and for outputting the amplified size component, a frequency modulator for modulating the phase component into a radio frequency (RF) signal, and a power amplifier for amplifying the RF signal by using an output signal of the bias modulator as a bias voltage. As provided, the transmission apparatus reduces a memory effect due to an impedance difference in a modulation frequency band.

    摘要翻译： 提供了一种无线通信系统中的信封消除和恢复电力传输装置。 该装置包括信号处理器，用于将传输信号分成尺寸分量和相位分量，并根据尺寸分量产生用于控制偏置调制器的电流的控制信号，用于根据尺寸分量放大尺寸分量的偏置调制器 控制信号，用于降低放大的大小分量的阻抗特性并输出放大的大小分量;频率调制器，用于将相位分量调制成射频（RF）信号;以及功率放大器，用于放大 通过使用偏置调制器的输出信号作为偏置电压的RF信号。 如上所述，发送装置由于调制频带的阻抗差而降低存储效果。

    FINITE IMPULSE RESPONSE (FIR) FILTER WITHOUT DECIMATION
    9.
    发明申请
    FINITE IMPULSE RESPONSE (FIR) FILTER WITHOUT DECIMATION 审中-公开
    有限冲突响应（FIR）滤波器，不带十进制

    公开(公告)号：US20090327793A1

    公开(公告)日：2009-12-31

    申请号：US12355182

    申请日：2009-01-16

    申请人： Jin-hyun Kim ,  Jin-Soo Park ,  Hyung-sun Lim ,  Han-Woong Yoo ,  Young-Eil Kim ,  Bum-Man Kim ,  Chang-Joon Park

    发明人： Jin-hyun Kim ,  Jin-Soo Park ,  Hyung-sun Lim ,  Han-Woong Yoo ,  Young-Eil Kim ,  Bum-Man Kim ,  Chang-Joon Park

    IPC分类号： G06F17/10 ,  G06F1/06

    CPC分类号： H03H15/023

    摘要： Provided is a discrete signal finite impulse response (FIR) filter and a filter set in which a plurality of FIR filter units are connected in a cascade structure to remove down-sampling by decimation, in order to improve the attenuation characteristics of a FIR filter, such as, for example, a switched capacitor filter. The FIR filter includes a clock generator generating a plurality of clock signals that are different from each other; and N+2 sub blocks each including N sample storage units, each sample storage unit storing a received sample. Each sub block being in a state among a number of possible states including N charging states for storing the received sample, a transfer state for outputting the stored sample and a reset state for operation initialization. The N charging states, the transfer state and the reset state are changed sequentially in response to the clock signals.

    摘要翻译： 提供了一种离散信号有限脉冲响应（FIR）滤波器和滤波器组，其中多个FIR滤波器单元以级联结构连接以通过抽取来去除下采样，以便提高FIR滤波器的衰减特性， 例如开关电容滤波器。 FIR滤波器包括产生彼此不同的多个时钟信号的时钟发生器; 和N + 2个子块，每个子块包括N个采样存储单元，每个采样存储单元存储接收的采样。 每个子块处于包括用于存储所接收的采样的N个充电状态，用于输出所存储的采样的传送状态和用于操作初始化的复位状态的多个可能状态之间的状态。 响应于时钟信号，N个充电状态，传送状态和复位状态顺序地改变。