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    • 3. 发明申请
    • POWER TRANSMISSION APPARATUS IN WIRELESS COMMUNICATION SYSTEMS
    • 无线通信系统中的功率传输设备
    • US20080198944A1
    • 2008-08-21
    • US12031891
    • 2008-02-15
    • Han-Seok KIMJin-Sung KIMBum-Man KIM
    • Han-Seok KIMJin-Sung KIMBum-Man KIM
    • H04B1/00
    • H04B1/0483
    • 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.
    • 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。
    • 7. 发明授权
    • Power transmission apparatus in wireless communication systems
    • 无线通信系统中的电力传输装置
    • US07924939B2
    • 2011-04-12
    • US12031891
    • 2008-02-15
    • Han-Seok KimJin-Sung KimBum-Man Kim
    • Han-Seok KimJin-Sung KimBum-Man Kim
    • H04L27/00
    • H04B1/0483
    • 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.
    • 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。
    • 8. 发明申请
    • FINITE IMPULSE RESPONSE (FIR) FILTER WITHOUT DECIMATION
    • 有限冲突响应(FIR)滤波器,不带十进制
    • US20090327793A1
    • 2009-12-31
    • US12355182
    • 2009-01-16
    • Jin-hyun KimJin-Soo ParkHyung-sun LimHan-Woong YooYoung-Eil KimBum-Man KimChang-Joon Park
    • Jin-hyun KimJin-Soo ParkHyung-sun LimHan-Woong YooYoung-Eil KimBum-Man KimChang-Joon Park
    • G06F17/10G06F1/06
    • H03H15/023
    • 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.
    • 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。