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51. 发明授权

US08525592B2 Power amplification device, transmitter, and power amplification control method 有权
标题翻译：功率放大器，发射器和功率放大控制方法
公开(公告)号：US08525592B2
公开(公告)日：2013-09-03
申请号：US13405441
申请日：2012-02-27
申请人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Yuichi Utsunomiya , Kazuo Nagatani
发明人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Yuichi Utsunomiya , Kazuo Nagatani
IPC分类号： H03F1/26
CPC分类号： H03F3/24 , H03F1/3247 , H03F1/3258 , H03F3/189 , H03F2200/336 , H03F2201/3233
摘要： A power amplifier amplifies a signal. An error signal calculating unit calculates an error signal in accordance with an input signal and an output from the power amplifier. A distortion compensation unit performs predistortion on the input signal by using distortion compensation coefficients that are generated in accordance with a plurality of delay signals obtained by giving different amounts of delay to the input signal and by using an error signal and outputs the input signal subjected to the predistortion to the signal amplifying unit. A tap interval control unit controls the delay intervals of the delay signals that are used for the predistortion performed by the distortion compensation unit in accordance with signal correlation information calculated from the input signal.
摘要翻译：功率放大器放大信号。误差信号计算单元根据输入信号和来自功率放大器的输出来计算误差信号。失真补偿单元通过使用根据通过对输入信号赋予不同量的延迟而获得的多个延迟信号而产生的失真补偿系数，并且通过使用误差信号，并且输出经受对信号放大单元的预失真。抽头间隔控制单元根据从输入信号计算的信号相关信息来控制用于由失真补偿单元执行的预失真的延迟信号的延迟间隔。

52. 发明申请

US20130040587A1 DISTORTION COMPENSATION DEVICE, DISTORTION COMPENSATION METHOD, AND RADIO TRANSMITTER 有权
标题翻译：失真补偿装置，失真补偿方法和无线电发射机
公开(公告)号：US20130040587A1
公开(公告)日：2013-02-14
申请号：US13558620
申请日：2012-07-26
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Nobukazu Fudaba , Yuichi Utsunomiya
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Nobukazu Fudaba , Yuichi Utsunomiya
IPC分类号： H03F1/26 , H04B1/04
CPC分类号： H03F1/3258 , H03F1/3241 , H03F1/3247 , H03F3/189 , H03F3/245 , H03F2200/105 , H03F2201/3233 , H04B1/0475 , H04B2001/0425
摘要： A distortion compensation device includes: a frequency-characteristic adding unit configured to add a frequency characteristic to an error signal to generate an added error signal, the error signal being a difference between an input signal input to an amplifier and an output signal output from the amplifier; a distortion-compensation-coefficient updating unit configured to update a distortion compensation coefficient for compensating for a distortion characteristic of the amplifier based on the added error signal; and a distortion compensation unit configured to perform distortion compensation on the input signal using the updated distortion compensation coefficient.
摘要翻译：失真补偿装置包括：频率特性相加单元，被配置为向误差信号添加频率特性以产生相加的误差信号，所述误差信号是输入到放大器的输入信号与从所述输出信号输出的输出信号之间的差放大器失真补偿系数更新单元，被配置为基于所添加的误差信号来更新用于补偿所述放大器的失真特性的失真补偿系数; 以及失真补偿单元，被配置为使用更新的失真补偿系数对输入信号执行失真补偿。

53. 发明授权

US08712345B2 Distortion compensation device, distortion compensation method, and radio transmitter 有权
标题翻译：失真补偿装置，失真补偿方法和无线电发射机
公开(公告)号：US08712345B2
公开(公告)日：2014-04-29
申请号：US13558620
申请日：2012-07-26
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Nobukazu Fudaba , Yuichi Utsunomiya
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Nobukazu Fudaba , Yuichi Utsunomiya
IPC分类号： H04B1/04 , H04B17/00
CPC分类号： H03F1/3258 , H03F1/3241 , H03F1/3247 , H03F3/189 , H03F3/245 , H03F2200/105 , H03F2201/3233 , H04B1/0475 , H04B2001/0425
摘要： A distortion compensation device includes: a frequency-characteristic adding unit configured to add a frequency characteristic to an error signal to generate an added error signal, the error signal being a difference between an input signal input to an amplifier and an output signal output from the amplifier; a distortion-compensation-coefficient updating unit configured to update a distortion compensation coefficient for compensating for a distortion characteristic of the amplifier based on the added error signal; and a distortion compensation unit configured to perform distortion compensation on the input signal using the updated distortion compensation coefficient.
摘要翻译：失真补偿装置包括：频率特性相加单元，被配置为向误差信号添加频率特性以产生相加的误差信号，所述误差信号是输入到放大器的输入信号与从所述输出信号输出的输出信号之间的差放大器失真补偿系数更新单元，被配置为基于所添加的误差信号来更新用于补偿所述放大器的失真特性的失真补偿系数; 以及失真补偿单元，被配置为使用更新的失真补偿系数对输入信号执行失真补偿。

54. 发明授权

US08619905B2 Predistorter and distortion compensation method 有权
标题翻译：预失真和失真补偿方法
公开(公告)号：US08619905B2
公开(公告)日：2013-12-31
申请号：US12693695
申请日：2010-01-26
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani
IPC分类号： H04K1/02
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/204 , H03F2200/451 , H03F2201/3209 , H03F2201/3224 , H03F2201/3233 , H04L27/368
摘要： A predistorter includes a distortion compensating unit which gives, in advance, a reverse characteristic of a characteristic of input to output of a power amplifier to a transmission signal which is to be input to the power amplifier; a distortion compensation signal generating unit which generates a distortion compensation signal indicating the reverse characteristic based on transmission data that is sample data of the transmission signal and the delayed transmission data; and a delay amount control unit which controls a delay amount of the transmission data according to an output signal of the power amplifier.
摘要翻译：预失真器包括：失真补偿单元，其预先将功率放大器的输出的特性的反向特性赋予要输入到功率放大器的发送信号; 失真补偿信号产生单元，其基于作为发送信号的采样数据和延迟的发送数据的发送数据生成表示反向特性的失真补偿信号; 以及延迟量控制单元，其根据功率放大器的输出信号来控制发送数据的延迟量。

55. 发明授权

US08509349B2 Transmitter and distortion compensating method 有权
标题翻译：发射机和失真补偿方法
公开(公告)号：US08509349B2
公开(公告)日：2013-08-13
申请号：US13357504
申请日：2012-01-24
申请人： Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya , Toshio Kawasaki
发明人： Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba , Yuichi Utsunomiya , Toshio Kawasaki
IPC分类号： H04B15/00
CPC分类号： H04B1/0475 , H03F1/3247
摘要： A transmitter, when the power changes at a certain timing, adjusts the gain for the transmission signal before the application of the distortion compensation process correspondingly to the amplitude of the transmission signal at the certain timing based on the average of the power of a transmission signal before application of the distortion compensation process, obtains a distortion compensation coefficient corresponding to the value of the power of the adjusted transmission signal from the LUT, applies the distortion compensation process to the transmission signal using the obtained distortion compensation coefficient, calculates an update for a distortion compensation coefficient corresponding to the obtained distortion compensation coefficient and stored in the LUT based on an error between the power of the transmission signal amplified by an amplifier and the power of the transmission signal before the application of the distortion compensation process, and updates the LUT using the calculated update.
摘要翻译：发射机当功率在某一定时变化时，根据传输信号的功率的平均值，在施加失真补偿处理之前调整发送信号的增益，对应于在某个定时的发送信号的幅度在施加失真补偿处理之前，获得与来自LUT的经调整的发送信号的功率值对应的失真补偿系数，使用所获得的失真补偿系数对发送信号应用失真补偿处理，计算更新基于由放大器放大的发送信号的功率与施加失真补偿处理之前的发送信号的功率之间的误差，存储在LUT中的失真补偿系数对应于所获得的失真补偿系数，并且更新LUT 使用t 他计算更新。

56. 发明授权

US08588711B2 Transmission apparatus and distortion compensation method 有权
标题翻译：传输装置和失真补偿方法
公开(公告)号：US08588711B2
公开(公告)日：2013-11-19
申请号：US13234665
申请日：2011-09-16
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Yasuyuki Oishi
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Yasuyuki Oishi
IPC分类号： H04B1/04 , H03F1/32
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H03M1/0614 , H03M1/66 , H04B1/0475
摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.
摘要翻译：一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的，采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。

57. 发明申请

US20120068768A1 TRANSMISSION APPARATUS AND DISTORTION COMPENSATION METHOD 有权
标题翻译：传输装置和失真补偿方法
公开(公告)号：US20120068768A1
公开(公告)日：2012-03-22
申请号：US13234665
申请日：2011-09-16
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Yasuyuki Oishi
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Yasuyuki Oishi
IPC分类号： H03F1/26 , H03M1/12
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H03M1/0614 , H03M1/66 , H04B1/0475
摘要： A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.
摘要翻译：一种发送装置，包括：模拟数字转换器，对通过解调部分输出信号而获得的解调信号进行采样，所述解调信号是通过放大包括具有彼此分离的频率的多个信号的基带信号的调制信号而产生的，采样频率低于给定互调失真分量的频率并将解调信号转换为数字信号;检测部分，其检测通过模拟数字转换器的转换产生的给定互调失真分量的混叠分量;以及失真补偿部分，根据检测到的混叠分量来补偿对于给定的互调失真分量要调制的输入信号。

58. 发明授权

US07856069B2 Distortion compensation apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US07856069B2
公开(公告)日：2010-12-21
申请号：US12078133
申请日：2008-03-27
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： H04L25/49 , H03C3/06
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2201/3233
摘要： A distortion compensation apparatus includes an amplifier for amplifying an input signal, a calculation unit for obtaining a distortion compensation coefficient of the amplifier corresponding to an amplitude level of the input signal, based on the input signal input to the amplifier and an output signal output from the amplifier, a memory for storing the distortion compensation coefficient, obtained by the calculation unit, into a write address being made to correspond to the input signal amplitude level, a distortion compensation processing unit for reading out the distortion compensation coefficient from the readout address of the memory, and for performing distortion compensation processing of the input signal using the distortion compensation coefficient, and an address generator for generating the write address and the readout address, based on the input signal amplitude level.
摘要翻译：失真补偿装置包括：放大器，用于放大输入信号;计算单元，用于基于输入到放大器的输入信号和从输入信号输出的输出信号获得对应于输入信号的幅度电平的放大器的失真补偿系数; 所述放大器，用于将由所述计算单元获得的所述失真补偿系数的存储器存储为与所述输入信号幅度电平相对应的写入地址;失真补偿处理单元，用于从所述输出信号幅度电平的读出地址读出所述失真补偿系数; 存储器，以及使用失真补偿系数执行输入信号的失真补偿处理，以及用于基于输入信号幅度电平产生写入地址和读出地址的地址发生器。

59. 发明授权

US07782153B2 Timing adjusting method and timing adjusting apparatus 有权
标题翻译：定时调整方法和定时调整装置
公开(公告)号：US07782153B2
公开(公告)日：2010-08-24
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： H03L1/00
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。

60. 发明申请

US20080204136A1 Distortion compensation apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US20080204136A1
公开(公告)日：2008-08-28
申请号：US12078133
申请日：2008-03-27
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： H03F1/32
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2201/3233
摘要： A distortion compensation apparatus includes an amplifier for amplifying an input signal, a calculation unit for obtaining a distortion compensation coefficient of the amplifier corresponding to an amplitude level of the input signal, based on the input signal input to the amplifier and an output signal output from the amplifier, a memory for storing the distortion compensation coefficient, obtained by the calculation unit, into a write address being made to correspond to the input signal amplitude level, a distortion compensation processing unit for reading out the distortion compensation coefficient from the readout address of the memory, and for performing distortion compensation processing of the input signal using the distortion compensation coefficient, and an address generator for generating the write address and the readout address, based on the input signal amplitude level.
摘要翻译：失真补偿装置包括：放大器，用于放大输入信号;计算单元，用于基于输入到放大器的输入信号和从输入信号输出的输出信号获得对应于输入信号的幅度电平的放大器的失真补偿系数; 所述放大器，用于将由所述计算单元获得的所述失真补偿系数的存储器存储为与所述输入信号幅度电平相对应的写入地址;失真补偿处理单元，用于从所述输出信号幅度电平的读出地址读出所述失真补偿系数; 存储器，以及使用失真补偿系数执行输入信号的失真补偿处理，以及用于基于输入信号幅度电平产生写入地址和读出地址的地址发生器。

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