公开(公告)号：US20050219118A1

公开(公告)日：2005-10-06

申请号：US10920994

申请日：2004-08-18

申请人： Tokuro Kubo ,  Kazuo Nagatani ,  Hajime Hamada ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

发明人： Tokuro Kubo ,  Kazuo Nagatani ,  Hajime Hamada ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba

IPC分类号： H04J1/00 ,  G01S7/40 ,  H01Q3/26 ,  H04B1/707 ,  H04B7/08 ,  H04B7/10 ,  H04L27/26

CPC分类号： H04B17/0085 ,  H01Q3/267 ,  H04B17/12

摘要： Disclosed is a phase calibration method for inserting a calibration signal (SC) into main signals (SM1 to SMn) of a plurality of branches in turn, estimating the phase characteristic of an analog circuit to which a respective one of the main signals is input and calibrating the phase of each main signal. The method includes steps of outputting a first combined signal obtained by combining output signals from the analog circuits (62a to 62n) in all branches, outputting a second combined signal obtained by combining the main signals in all branches, extracting the calibration signal by removing the second combined signal from the first combined signal in a calibration signal extracting unit (64), estimating the phase characteristics of the analog circuits, to which the main signals having the inserted calibration signal are input, based upon a change in phase of the calibration signal, and subjecting the main signals to phase adjustment having characteristics that are opposite the phase characteristics.

摘要翻译： 公开了一种用于依次将多个分支的主信号（SM 1至SM n）插入校准信号（SC）的相位校准方法，估计相应一个主信号被输入的模拟电路的相位特性 并校准每个主信号的相位。 该方法包括以下步骤：输出通过在所有分支中组合来自模拟电路（62a至62n）的输出信号而获得的第一组合信号，输出通过组合所有分支中的主信号而获得的第二组合信号，通过 在校准信号提取单元（64）中从所述第一组合信号中去除所述第二组合信号，基于所述校准信号提取单元（64）的相位变化估计输入了具有插入的校准信号的所述主信号的所述模拟电路的相位特性 校准信号，并对主信号进行相位调整，具有与相位特性相反的特性。

公开(公告)号：US07804914B2

公开(公告)日：2010-09-28

申请号：US12076825

申请日：2008-03-24

申请人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Tokuro Kubo

发明人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Tokuro Kubo

IPC分类号： H04L27/00 ,  H04L25/49

CPC分类号： H04B1/707 ,  H04B2201/70706 ,  H04L5/0021 ,  H04L27/2624

摘要： A radio transmission apparatus executing peak suppression processing to an input signal in at least two stages, includes a first peak detector detecting a first peak, a maximum peak among peaks exceeding a first threshold, for a plurality of envelopes included in a predetermined input signal section; a second peak detector detecting a second peak exceeding a second threshold, on the basis of each input signal envelope; a first peak suppression unit suppressing the predetermined input signal section to the limit of a first level based on the first peak; a modulation signal generation unit generating a modulated signal modulated from the input signal suppressed by the first peak suppression unit; and a second peak suppression unit suppressing the second peak to the limit of a second level by each modulated signal envelope based on the first level and the second peak.

摘要翻译： 对至少两级对输入信号执行峰值抑制处理的无线发送装置包括检测包括在预定输入信号部分中的多个信封的第一峰值，检测超过第一阈值的峰值中的最大峰值的第一峰值检测器 ; 基于每个输入信号包络检测第二峰值检测器，检测超过第二阈值的第二峰值; 第一峰值抑制单元，基于第一峰值将预定输入信号部分抑制到第一电平的极限; 调制信号生成单元，生成由所述第一峰值抑制单元抑制的输入信号调制的调制信号; 以及第二峰值抑制单元，其基于第一电平和第二峰值，通过每个调制信号包络将第二峰值抑制到第二电平的极限。

公开(公告)号：US07664473B2

公开(公告)日：2010-02-16

申请号：US11589898

申请日：2006-10-31

申请人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Kazuo Nagatani ,  Yasuhito Funyu ,  Norio Tozawa ,  Tokuro Kubo

发明人： Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Kazuo Nagatani ,  Yasuhito Funyu ,  Norio Tozawa ,  Tokuro Kubo

IPC分类号： H01Q11/12 ,  H04B17/00

CPC分类号： H03F1/0266 ,  H03F1/0205 ,  H03F1/0244 ,  H03F1/32 ,  H03F3/24

摘要： A bias control signal generation unit detects ON and OFF of a transmission signal input to an amplifier and having a property of a burst according to burst information. The bias control signal generation unit controls a bias voltage to be applied to an amplifier such that an idle current flowing through the amplifier can be flowing in a larger amount in a transmission OFF period, and can return to a normal level in a transmission ON period.

摘要翻译： 偏置控制信号生成单元根据突发信息检测输入到放大器的发送信号的接通和关断，并具有突发的性质。 偏置控制信号发生单元控制要施加到放大器的偏置电压，使得流过放大器的空闲电流可以在传输关闭时段内以较大的量流动，并且可以在传输开启周期中恢复到正常电平 。

公开(公告)号：US20070159242A1

公开(公告)日：2007-07-12

申请号：US11429355

申请日：2006-05-05

申请人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Tokuro Kubo

发明人： Kazuo Nagatani ,  Hiroyoshi Ishikawa ,  Nobukazu Fudaba ,  Hajime Hamada ,  Tokuro Kubo

IPC分类号： H03D1/00 ,  H03L7/00

CPC分类号： H03C5/00

摘要： A timing adjusting method detects a phase error between a main signal path from which a transmitting signal is obtained and a control signal path from which a voltage control signal is obtained, based on a to-be-amplified signal that is to be amplified and represents an amplitude or a power of the transmitting signal prior to amplification and a feedback signal that represents an amplitude or a power of the transmitting signal after the amplification, adjusts an amount of delay of at least one of the main signal path and the control signal path so as to mutually cancel the phase error, and amplifies the transmitting signal from the main signal path depending on the voltage control signal from the control signal path. The detecting the phase error may include detecting polarity transition points of a slope of a waveform of the to-be-amplified signal or the feedback signal, and measuring the phase error using the detected polarity transition points.

摘要翻译： 代表定时调整方法，根据要放大的被放大信号，检测获得发送信号的主信号路径与获得电压控制信号的控制信号路径之间的相位误差， 在放大之前的发送信号的幅度或功率以及表示放大后的发送信号的幅度或功率的反馈信号，调整主信号路径和控制信号路径中的至少一个的延迟量 以便相互抵消相位误差，并且根据来自控制信号路径的电压控制信号放大来自主信号路径的发送信号。 检测相位误差可以包括检测被放大信号或反馈信号的波形的斜率的极性转变点，以及使用检测到的极性转变点来测量相位误差。

公开(公告)号：US20070146068A1

公开(公告)日：2007-06-28

申请号：US11367379

申请日：2006-03-06

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Tokuro Kubo

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Tokuro Kubo

IPC分类号： H03G3/20

CPC分类号： H03F1/0222 ,  H03F1/025 ,  H03F2200/102 ,  H03F2200/504 ,  H03F2200/511

摘要： A device is disclosed that includes an amplification part for a linear transmitter, the amplification part being configured to amplify a transmission signal in accordance with a supply voltage control signal; a generation part configured to generate a power supply signal showing the level of the transmission signal; and a control part configured to output the supply voltage control signal based on the power supply signal. The control part includes a storage part configured to store a series of values of the power supply signal belonging to a time range including a certain point of time; and an output part configured to output a maximum one of a predetermined number of values of the series of values of the power supply signal as the supply voltage control signal at the certain point of time.

摘要翻译： 公开了一种包括用于线性发送器的放大部件的装置，所述放大部件被配置为根据电源电压控制信号放大发送信号; 生成部，被配置为生成表示所述发送信号的电平的电源信号; 以及控制部，被配置为基于所述电源信号输出所述电源电压控制信号。 控制部包括：存储部，被配置为存储属于包括某个时间点的时间范围的电源信号的一系列值; 以及输出部，其被配置为在所述特定时间点输出所述电源信号的所述一系列值的预定数量的值中的最大值作为所述电源电压控制信号。

公开(公告)号：US07881404B2

公开(公告)日：2011-02-01

申请号：US12567510

申请日：2009-09-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

IPC分类号： H04L25/49 ,  H03C3/08

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/19

摘要： A distortion correction control apparatus is for compensating for a burst distortion of a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a generation unit that generates a distortion correction coefficient having reverse characteristics to the foregoing burst distortion; a unit that multiplies the distortion correction coefficient output from the generation unit by the input signal or adds the distortion correction coefficient output from the generation unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal and a branch signal fed back as an output signal of the transmission amplifier, parameters of functions used for adaptively generating the distortion correction coefficient, and that inputs the updated parameters to the generation unit.

摘要翻译： 失真校正控制装置用于补偿由发射目标的输入信号的脉冲串引起的发射放大器的脉冲串失真。 该装置包括产生具有与上述突发畸变相反的特性的失真校正系数的生成单元; 一个单元，用于通过输入信号将从生成单元输出的失真校正系数乘以输入信号，或将从生成单元输出的失真校正系数与输入信号相加，或者将通过输入信号存在与不存在切换之间的突发信息相加; 以及更新单元，其基于所述输入信号和作为所述发送放大器的输出信号反馈的分支信号来更新用于自适应地生成所述失真校正系数的功能的参数，并且将更新的参数输入到所述生成单元。

公开(公告)号：US07746957B2

公开(公告)日：2010-06-29

申请号：US12567431

申请日：2009-09-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

IPC分类号： H04L25/49 ,  H03C3/08

CPC分类号： H03F1/3247 ,  H03F2201/3233

摘要： A distortion correction control apparatus is for compensating for a burst distortion in a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a holding unit that stores a distortion correction coefficient having reverse characteristics to the burst distortion; a unit that multiplies the distortion correction coefficient read out from the holding unit by the input signal or adds the distortion correction coefficient read out from the holding unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal, the distortion correction coefficient of the last time, and a signal fed back as an output signal of the transmission amplifier, the distortion correction coefficient by an adaptive algorithm, and that inputs the updated distortion correction coefficient to the holding unit.

摘要翻译： 失真校正控制装置用于补偿由发送目标的输入信号的脉冲串引起的发送放大器中的脉冲串失真。 该装置包括保存单元，其存储具有与突发失真相反特性的失真校正系数; 将从保持单元读出的失真校正系数乘以输入信号的单位，或者在接收到通知输入有无之间切换的突发信息时，将从保持单元读出的失真校正系数与输入信号相加 信号; 以及更新单元，其基于输入信号更新上一次的失真校正系数，以及作为发送放大器的输出信号反馈的信号，通过自适应算法更新失真校正系数，并且输入更新的 失真校正系数到保持单元。

公开(公告)号：US08493144B2

公开(公告)日：2013-07-23

申请号：US13088580

申请日：2011-04-18

申请人： Hiroyoshi Ishikawa ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Kazuo Nagatani ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Kazuo Nagatani ,  Yasuyuki Oishi

IPC分类号： H03F1/26

CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/204 ,  H03F2200/451 ,  H03F2201/3233

摘要： A distortion compensation device includes a distortion compensation unit which compensates for a distortion generated in a power amplifier by using a polynomial in which a signal to be input into a power amplifier is raised to a power of a degree N (N is an integer larger than 0) and the raised signal is delayed by a delay number K (K is an integer larger than 0), and a polynomial adjusting unit which adjusts the degree N or the delay number K of the polynomial based on a comparison between a prescribed value, which indicates a degree of variation of the distortion generated in the power amplifier and a threshold value.

摘要翻译： 失真补偿装置包括失真补偿单元，其通过使用将要输入到功率放大器的信号提高到N的幂的多项式来补偿在功率放大器中产生的失真（N是大于 0），并且升高的信号被延迟了延迟数K（K是大于0的整数），以及多项式调整单元，其基于规定值， 其指示在功率放大器中产生的失真的变化程度和阈值。

公开(公告)号：US20100062733A1

公开(公告)日：2010-03-11

申请号：US12567510

申请日：2009-09-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime Hamada ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

IPC分类号： H04B1/04

CPC分类号： H03F1/32 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/19

摘要： A distortion correction control apparatus is for compensating for a burst distortion of a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a generation unit that generates a distortion correction coefficient having reverse characteristics to the foregoing burst distortion; a unit that multiplies the distortion correction coefficient output from the generation unit by the input signal or adds the distortion correction coefficient output from the generation unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal and a branch signal fed back as an output signal of the transmission amplifier, parameters of functions used for adaptively generating the distortion correction coefficient, and that inputs the updated parameters to the generation unit.

摘要翻译： 失真校正控制装置用于补偿由发射目标的输入信号的脉冲串引起的发射放大器的脉冲串失真。 该装置包括产生具有与上述突发畸变相反的特性的失真校正系数的生成单元; 一个单元，用于通过输入信号将从生成单元输出的失真校正系数乘以输入信号，或将从生成单元输出的失真校正系数与输入信号相加，或者将通过输入信号存在与不存在切换之间的突发信息相加; 以及更新单元，其基于所述输入信号和作为所述发送放大器的输出信号反馈的分支信号来更新用于自适应地生成所述失真校正系数的功能的参数，并且将更新的参数输入到所述生成单元。

公开(公告)号：US20100014609A1

公开(公告)日：2010-01-21

申请号：US12567431

申请日：2009-09-25

申请人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime HAMADA ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

发明人： Hiroyoshi Ishikawa ,  Kazuo Nagatani ,  Hajime HAMADA ,  Nobukazu Fudaba ,  Yuichi Utsunomiya ,  Yasuyuki Oishi

IPC分类号： H04L25/03

CPC分类号： H03F1/3247 ,  H03F2201/3233

摘要： A distortion correction control apparatus is for compensating for a burst distortion in a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a holding unit that stores a distortion correction coefficient having reverse characteristics to the burst distortion; a unit that multiplies the distortion correction coefficient read out from the holding unit by the input signal or adds the distortion correction coefficient read out from the holding unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal, the distortion correction coefficient of the last time, and a signal fed back as an output signal of the transmission amplifier, the distortion correction coefficient by an adaptive algorithm, and that inputs the updated distortion correction coefficient to the holding unit.

摘要翻译： 失真校正控制装置用于补偿由发送目标的输入信号的脉冲串引起的发送放大器中的脉冲串失真。 该装置包括保存单元，其存储具有与突发失真相反特性的失真校正系数; 将从保持单元读出的失真校正系数乘以输入信号的单位，或者在接收到通知输入有无之间切换的突发信息时，将从保持单元读出的失真校正系数与输入信号相加 信号; 以及更新单元，其基于输入信号更新上一次的失真校正系数，以及作为发送放大器的输出信号反馈的信号，通过自适应算法更新失真校正系数，并且输入更新的 失真校正系数到保持单元。