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    • 6. 发明授权
    • Polar modulator
    • 极性调制器
    • US08860524B2
    • 2014-10-14
    • US13382029
    • 2010-06-17
    • Shigeru MorimotoKaoru IshidaMaki Nakamura
    • Shigeru MorimotoKaoru IshidaMaki Nakamura
    • H03C1/00H03F3/24H03F3/189H03C5/00H03F1/02H04B1/04
    • H03F3/24H03C5/00H03F1/0266H03F3/189H04B1/04
    • A polar modulator of the present invention includes: a first function block which generates an amplitude signal and a phase signal; a second function block which adjusts the signal delay between the amplitude signal and the phase signal; a third function block which allows the low frequency component of the amplitude signal to pass therethrough; a fourth function block which modulates the phase of the phase signal; a fifth function block which outputs a modulation voltage, based on the amplitude signal; a sixth function block which modulates the amplitude of the phase signal, based on the modulation voltage; a seventh function block which measures the temperature of at least one function block; and an eighth function block which calculates a compensation amount for the signal delay, based on the measured temperature. The second function block adjusts the signal delay, based on the compensation amount.
    • 本发明的极性调制器包括:产生振幅信号和相位信号的第一功能块; 第二功能块,调整幅度信号和相位信号之间的信号延迟; 允许振幅信号的低频分量通过的第三功能块; 第四功能块,其对相位信号的相位进行调制; 第五功能块,其基于所述振幅信号输出调制电压; 第六功能块,其基于所述调制电压来调制所述相位信号的幅度; 测量至少一个功能块的温度的第七功能块; 以及基于测量的温度计算信号延迟的补偿量的第八功能块。 第二功能块根据补偿量调整信号延迟。
    • 7. 发明申请
    • POLAR MODULATOR
    • 极性调制器
    • US20120106402A1
    • 2012-05-03
    • US13382029
    • 2010-06-17
    • Shigeru MorimotoKaoru IshidaMaki Nakamura
    • Shigeru MorimotoKaoru IshidaMaki Nakamura
    • H04L27/04H04L27/34H04B7/005
    • H03F3/24H03C5/00H03F1/0266H03F3/189H04B1/04
    • A polar modulator of the present invention includes: a first function block which generates an amplitude signal and a phase signal; a second function block which adjusts the signal delay between the amplitude signal and the phase signal; a third function block which allows the low frequency component of the amplitude signal to pass therethrough; a fourth function block which modulates the phase of the phase signal; a fifth function block which outputs a modulation voltage, based on the amplitude signal; a sixth function block which modulates the amplitude of the phase signal, based on the modulation voltage; a seventh function block which measures the temperature of at least one function block; and an eighth function block which calculates a compensation amount for the signal delay, based on the measured temperature. The second function block adjusts the signal delay, based on the compensation amount.
    • 本发明的极性调制器包括:产生振幅信号和相位信号的第一功能块; 第二功能块,调整幅度信号和相位信号之间的信号延迟; 允许振幅信号的低频分量通过的第三功能块; 第四功能块,其对相位信号的相位进行调制; 第五功能块,其基于所述振幅信号输出调制电压; 第六功能块,其基于所述调制电压来调制所述相位信号的幅度; 测量至少一个功能块的温度的第七功能块; 以及基于测量的温度计算信号延迟的补偿量的第八功能块。 第二功能块根据补偿量调整信号延迟。
    • 8. 发明授权
    • Transmission circuit, and communication apparatus using the same
    • 传输电路和使用其的通信设备
    • US07742541B2
    • 2010-06-22
    • US11785185
    • 2007-04-16
    • Toru MatsuuraKaoru Ishida
    • Toru MatsuuraKaoru Ishida
    • H04L25/03H04L25/49H04L27/04H03C3/00
    • H04B1/0483H03F1/0294
    • A compact transmission circuit for outputting a highly linear transmission signal regardless of the output power level and operating at a high efficiency is provided. A signal generation section 11 generates an amplitude signal and quadrature data based on input data. A calculation section 21 calculates using the amplitude signal and the quadrature data to output a discrete value having a level discrete at every predetermine time period, and first and second phase signals. An amplitude amplification section 17 outputs a voltage controlled in accordance with the discrete value. Angular modulation sections 13 and 14 angular-modulate the phase signals and output first and second angle-modulated signals. Amplitude modulation sections 15 and 16 amplitude-modulate the angle-modulated signals with the voltage from the amplitude amplification section 17 and output first and second modulated signals. A combining section 18 combines the first and second modulated signals and outputs a transmission signal.
    • 提供了一种用于输出高线性传输信号而不管输出功率电平并以高效率操作的紧凑型传输电路。 信号生成部11基于输入数据生成振幅信号和正交数据。 计算部21使用振幅信号和正交数据进行计算,以输出在每个预定时间段具有离散值的离散值,以及第一和第二相位信号。 振幅放大部分17输出根据离散值控制的电压。 角度调制部分13和14角度调制相位信号并输出​​第一和第二角度调制信号。 幅度调制部分15和16利用来自幅度放大部分17的电压对角度调制信号进行幅度调制,并输出第一和第二调制信号。 组合部分18组合第一和第二调制信号并输出​​发送信号。
    • 10. 发明授权
    • Predistortion circuit and power amplifier
    • 预失真电路和功率放大器
    • US06933780B2
    • 2005-08-23
    • US09772883
    • 2001-01-31
    • Seiji FujiwaraToru MatsuuraKaoru IshidaMakoto Sakakura
    • Seiji FujiwaraToru MatsuuraKaoru IshidaMakoto Sakakura
    • H03F1/32H03F1/26
    • H03F1/3276
    • A predistortion circuit has an input terminal for inputting a predetermined signal; a nonlinear device directly or indirectly connected to the input terminal; a bias supply circuit for applying a voltage to the nonlinear device; specific-frequency suppressing means connected to one side or both sides of the nonlinear device directly without another intervening device and of suppressing all or part of such frequencies that are from a frequency corresponding to DC to a frequency corresponding to an occupied band width of an input signal inputted to the input terminal and/or suppressing at least one higher harmonic frequency of a carrier wave of the input signal; and an output terminal for outputting a signal.
    • 预失真电路具有用于输入预定信号的输入端子; 直接或间接连接到输入端的非线性装置; 用于向非线性装置施加电压的偏置电源电路; 特定频率抑制装置直接连接到非线性装置的一侧或两侧,而没有另一个中间装置,并且将来自对应于DC的频率的全部或部分频率抑制到对应于输入的占用带宽的频率 输入到输入端子的信号和/或抑制输入信号的载波的至少一个高次谐波频率; 以及用于输出信号的输出端子。