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1. 发明申请

US20100003920A1 PEAK SUPPRESSING AND RESTORING METHOD, TRANSMITTER, RECEIVER, AND PEAK SUPPRESSING AND RESTORING SYSTEM 有权
标题翻译：峰值抑制和恢复方法，发射器，接收器和峰值抑制和恢复系统
公开(公告)号：US20100003920A1
公开(公告)日：2010-01-07
申请号：US12478932
申请日：2009-06-05
申请人： Hiroyoshi ISHIKAWA , Hajime HAMADA , Nobukazu FUDABA , Yuichi UTSUNOMIYA , Kazuo NAGATANI
发明人： Hiroyoshi ISHIKAWA , Hajime HAMADA , Nobukazu FUDABA , Yuichi UTSUNOMIYA , Kazuo NAGATANI
IPC分类号： H04B15/00 , H04B1/04 , H04B1/10
CPC分类号： H04L27/2624
摘要： A peak suppressing and restoring method includes suppressing a peak of a signal, starting suppression when a suppression start value is lower than a suppression target value, using a function of a gain characteristic such that a peak amplitude value attains the suppression target value, and restoring the suppressed peak of the signal using an inverse function of the function of the gain characteristic.
摘要翻译：峰值抑制和恢复方法包括：使用增益特性使得峰值振幅值达到抑制目标值的功能来抑制信号的峰值，抑制开始值低于抑制目标值时的开始抑制，并恢复信号的抑制峰值使用增益特性的函数的反函数。

2. 发明申请

US20100194474A1 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：US20100194474A1
公开(公告)日：2010-08-05
申请号：US12693695
申请日：2010-01-26
申请人： Hiroyoshi ISHIKAWA , Hajime HAMADA , Nobukazu FUDABA , Yuichi UTSUNOMIYA , Shohei ISHIKAWA , Kazuo NAGATANI
发明人： Hiroyoshi ISHIKAWA , Hajime HAMADA , Nobukazu FUDABA , Yuichi UTSUNOMIYA , Shohei ISHIKAWA , Kazuo NAGATANI
IPC分类号： H03F1/26
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。

3. 发明申请

US20100237937A1 POWER AMPLIFYING DEVICE AND POWER AMPLIFYING METHOD 有权
标题翻译：功率放大器件和功率放大方法
公开(公告)号：US20100237937A1
公开(公告)日：2010-09-23
申请号：US12720269
申请日：2010-03-09
申请人： Kazuo NAGATANI , Hiroyoshi ISHIKAWA , Nobukazu FUDABA , Shohei ISHIKAWA , Hajime HAMADA , Yuichi UTSUNOMIYA
发明人： Kazuo NAGATANI , Hiroyoshi ISHIKAWA , Nobukazu FUDABA , Shohei ISHIKAWA , Hajime HAMADA , Yuichi UTSUNOMIYA
IPC分类号： H03F1/26
CPC分类号： H03F1/0222 , H03F1/3247
摘要： A power amplifying device includes an amplifier that amplifies a signal which is input in accordance with a voltage signal which is supplied to the amplifier, a voltage control section that controls the voltage signal in accordance with a transmission signal, a distortion compensating section that executes a distortion compensating process on the transmission signal by giving a value indicative of a reverse characteristic of the amplifier to the transmission signal in advance and inputs an output signal obtained by executing the distortion compensating process into the amplifier, an amplitude detecting section that detects an amplitude of the transmission signal, and a timing adjusting section that adjusts timings of the output signal and the voltage signal so that a value relating to the distortion compensating process meets a given condition when a detected value of the amplitude of the transmission signal is less than a given value.
摘要翻译：功率放大装置包括：放大器，放大根据提供给放大器的电压信号而输入的信号;电压控制部，其根据发送信号控制电压信号;失真补偿部，其执行对发送信号进行失真补偿处理，通过将表示放大器的反向特性的值预先提供给发送信号，并将通过执行失真补偿处理而获得的输出信号输入到放大器中，振幅检测部，传输信号和定时调整部分，其调节输出信号和电压信号的定时，使得当发送信号的振幅的检测值小于给定值时，与失真补偿处理相关的值满足给定条件值。

4. 发明申请

US20110260792A1 DISTORTION COMPENSATION DEVICE, RADIO COMMUNICATION DEVICE, AND DISTORTION COMPENSATION METHOD 有权
标题翻译：失真补偿装置，无线电通信装置和失真补偿方法
公开(公告)号：US20110260792A1
公开(公告)日：2011-10-27
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。

5. 发明申请

US20100148864A1 Amplifier Control Device 有权
标题翻译：放大器控制装置
公开(公告)号：US20100148864A1
公开(公告)日：2010-06-17
申请号：US12642254
申请日：2009-12-18
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： H03G3/20
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。

6. 发明申请

US20100060355A1 APPARATUS AND METHOD OF COMPENSATING DISTORTION 有权
标题翻译：装置和补偿失效的方法
公开(公告)号：US20100060355A1
公开(公告)日：2010-03-11
申请号：US12555314
申请日：2009-09-08
申请人： Hajime HAMADA , Hiroyoshi ISHIKAWA , Yuichi UTSUNOMIYA , Kazuo NAGATANI , Nobukazu FUDABA , Hideharu SHAKO
发明人： Hajime HAMADA , Hiroyoshi ISHIKAWA , Yuichi UTSUNOMIYA , Kazuo NAGATANI , Nobukazu FUDABA , Hideharu SHAKO
IPC分类号： H03F1/26
CPC分类号： H03F1/3241 , H03F1/3258
摘要： A distortion compensating apparatus includes a processing circuit that calculates each of a plurality of series operation coefficient pairs based on a transmission signal and a feedback signal of an output from an amplifying circuit performing power amplification of the transmission signal, executes a series operation process with respect to the transmission signal based on the plurality of the series operation coefficient pairs as a distortion compensation of the transmission signal, and inputs a result of the series operation process to the amplifying circuit performing the power amplification, and a selecting unit that, on the basis of power of the transmission signal, selects the series operation process to be executed corresponding to one of the plurality of series operation coefficient pairs, or selects one of the plurality of series operation coefficient pairs to be used in the series operation process to be executed.
摘要翻译：失真补偿装置包括：处理电路，其基于发送信号和来自执行发送信号的功率放大的放大电路的输出的反馈信号，计算多个串联运算系数对中的每一个，执行相对于基于多个串联运算系数对的发送信号作为发送信号的失真补偿，并将串联运算处理的结果输入到执行功率放大的放大电路，以及选择单元，基于选择与多个串联运算系数对中的一个对应的要执行的串联运算处理，或者选择要在要执行的串联运算处理中使用的多个串联运算系数对之一。

7. 发明申请

US20090318099A1 Peak Suppressing Apparatus, Peak Suppressing Method, and Wireless Communication Device 有权
标题翻译：峰值抑制装置，峰值抑制方法和无线通信装置
公开(公告)号：US20090318099A1
公开(公告)日：2009-12-24
申请号：US12411553
申请日：2009-03-26
申请人： Kazuo NAGATANI , Hajime HAMADA , Hiroyoshi ISHIKAWA , Nobukazu FUDABA , Yuichi UTSUNOMIYA
发明人： Kazuo NAGATANI , Hajime HAMADA , Hiroyoshi ISHIKAWA , Nobukazu FUDABA , Yuichi UTSUNOMIYA
IPC分类号： H01Q11/12 , H04B1/10
CPC分类号： H04L27/2614 , H04L27/2623
摘要： A peak suppressing apparatus includes an amplitude limiter that limits amplitude of the transmission signal with a predetermined threshold; a peak-suppressing-signal extracting unit that extracts a peak suppressing signal by subtracting the transmission signal before the amplitude limiting from the transmission signal amplitude-limited by the amplitude limiter; a filtering unit that performs filtering so that a frequency characteristic of the peak suppressing signal extracted by the peak-suppressing-signal extracting unit becomes flat; and an adder that adds the peak suppressing signal filtered by the filtering unit to the transmission signal.
摘要翻译：峰值抑制装置包括限幅器，其限制具有预定阈值的发送信号的振幅; 峰值抑制信号提取单元，通过从由幅度限制器限幅的发送信号中减去振幅限制之前的发送信号来提取峰值抑制信号; 滤波单元，进行滤波，使得由峰值抑制信号提取单元提取的峰值抑制信号的频率特性变得平坦; 以及将由滤波单元滤波的峰值抑制信号与发送信号相加的加法器。

8. 发明申请

US20130015917A1 DISTORTION COMPENSATION APPARATUS, TRANSMITTER, AND DISTORTION COMPENSATION METHOD 有权
标题翻译：失真补偿装置，发射机和失真补偿方法
公开(公告)号：US20130015917A1
公开(公告)日：2013-01-17
申请号：US13542368
申请日：2012-07-05
申请人： Hiroyoshi ISHIKAWA , Kazuo Nagatani , Nobukazu Fudaba
发明人： Hiroyoshi ISHIKAWA , Kazuo Nagatani , Nobukazu Fudaba
IPC分类号： H03F1/32
CPC分类号： H03F1/3258 , H03F1/3247 , H03F3/189 , H03F3/245 , H03F2201/3233
摘要： A distortion compensation apparatus includes an amplifying unit, a plurality of distortion compensation coefficient storage units, a first address generating unit, a second address generating unit, and a distortion compensating unit. The amplifying unit amplifies an input signal. A plurality of distortion compensation coefficient storage units store the distortion compensation coefficients for compensating for the distortion of the amplifying unit by being associated with two different addresses. The first address generating unit generates a first address based on the current input signal. The second address generating unit generates a second address different from the first address based on the previous input signal. The distortion compensating unit obtains the distortion compensation coefficient corresponding to a combination of the first and second addresses from each of the distortion compensation coefficient storage units and performs a pre-distortion processing for the current input signal to the amplifying unit using the obtained distortion compensation coefficient.
摘要翻译：失真补偿装置包括放大单元，多个失真补偿系数存储单元，第一地址生成单元，第二地址生成单元和失真补偿单元。放大单元放大输入信号。多个失真补偿系数存储单元通过与两个不同的地址相关联来存储用于补偿放大单元的失真的失真补偿系数。第一地址生成单元基于当前输入信号生成第一地址。第二地址生成单元基于先前的输入信号生成与第一地址不同的第二地址。失真补偿单元从每个失真补偿系数存储单元获得与第一和第二地址的组合相对应的失真补偿系数，并使用获得的失真补偿系数对放大单元执行当前输入信号的预失真处理。

9. 发明申请

US20120224654A1 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：US20120224654A1
公开(公告)日：2012-09-06
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 , H04B1/02
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。

10. 发明申请

US20120202440A1 DISTORTION COMPENSATION DEVICE, TRANSMITTER, AND DISTORTION COMPENSATION METHOD 有权
标题翻译：失真补偿装置，发射机和失真补偿方法
公开(公告)号：US20120202440A1
公开(公告)日：2012-08-09
申请号：US13367532
申请日：2012-02-07
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： H04B1/04 , G06F11/07
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/24 , H03F2201/3224 , H03F2201/3233 , H04B2001/0425 , H04B2001/0433
摘要： A distortion compensation device includes a distortion compensator that predistorts an input signal based on delay signals and distortion compensation coefficients corresponding to the respective delay signals obtained by applying different amounts of delay to the input signal, a calculator that calculates an error signal based on the predistorted input signal and an output signal from an amplifier that amplifies the predistorted input signal, a calculator that calculates prospective distortion compensation coefficients for updating the distortion compensation coefficients, based on the error signal, a saturation processor that performs saturation processing for bringing, when the prospective distortion compensation coefficients do not fall into a preset range, the prospective distortion compensation coefficients into the preset range, and a controller that controls the updating of the distortion compensation coefficients based on pieces of coefficient saturation information indicating whether the saturation processing is performed on the prospective distortion compensation coefficients.
摘要翻译：失真补偿装置包括：失真补偿器，其基于延迟信号预失真输入信号，以及对应于通过对输入信号应用不同量的延迟而获得的各个延迟信号的失真补偿系数;计算器，其基于预失真来计算误差信号输入信号和来自放大预失真输入信号的放大器的输出信号，计算器，其基于误差信号计算用于更新失真补偿系数的预期失真补偿系数;饱和处理器，执行饱和处理，以便在预期失真补偿系数不落入预设范围，预期失真补偿系数为预设范围，以及控制器，其基于系数饱和度信息指示来控制失真补偿系数的更新是否对预期失真补偿系数执行饱和处理。

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