专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20090160548A1 POWER AMPLIFYING APPARATUS 有权
标题翻译：功率放大器
公开(公告)号：US20090160548A1
公开(公告)日：2009-06-25
申请号：US12335572
申请日：2008-12-16
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
IPC分类号： H03F1/02
CPC分类号： H03F1/0227
摘要： A power amplifying apparatus includes a high-speed low pass filter which inputs an envelope signal included in a transmission signal therein, a low-speed low pass filter which inputs the envelope signal therein, a determination unit which inputs the envelope signal therein and determines rising or falling of the envelope signal, a selecting unit which selects one of the high-speed low pass filter and the low-speed low pass filter according to a determined result of the determination unit, and a voltage supply unit which generates a voltage based on a signal input according to a selection by the selecting unit and supplies the voltage to a power amplifier which inputs the transmission signal therein so as to amplify a power of the transmission signal.
摘要翻译：功率放大装置包括：高速低通滤波器，其输入包括在其中的发送信号中的包络信号;低速低通滤波器，其中输入包络信号;确定单元，其中输入包络信号并确定上升或包围信号的下降;选择单元，其根据确定单元的确定结果选择高速低通滤波器和低速低通滤波器之一;以及电压供应单元，其基于根据选择单元的选择输入信号，并将电压提供给输入其中的发送信号的功率放大器，以放大发送信号的功率。

2. 发明授权

US08154341B2 Power amplifying apparatus 有权
标题翻译：功率放大装置
公开(公告)号：US08154341B2
公开(公告)日：2012-04-10
申请号：US12335572
申请日：2008-12-16
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani , Toru Maniwa
IPC分类号： H03G3/20
CPC分类号： H03F1/0227
摘要： A power amplifying apparatus includes a high-speed low pass filter which inputs an envelope signal included in a transmission signal therein, a low-speed low pass filter which inputs the envelope signal therein, a determination unit which inputs the envelope signal therein and determines rising or falling of the envelope signal, a selecting unit which selects one of the high-speed low pass filter and the low-speed low pass filter according to a determined result of the determination unit, and a voltage supply unit which generates a voltage based on a signal input according to a selection by the selecting unit and supplies the voltage to a power amplifier which inputs the transmission signal therein so as to amplify a power of the transmission signal.
摘要翻译：功率放大装置包括：高速低通滤波器，其输入包括在其中的发送信号中的包络信号;低速低通滤波器，其中输入包络信号;确定单元，其中输入包络信号并确定上升或包围信号的下降;选择单元，其根据确定单元的确定结果选择高速低通滤波器和低速低通滤波器之一;以及电压供应单元，其基于根据选择单元的选择输入信号，并将电压提供给输入其中的发送信号的功率放大器，以放大发送信号的功率。

3. 发明授权

US08933752B2 Power amplifier apparatus, distortion compensation coefficient updating method, and transmission apparatus 有权
标题翻译：功率放大器装置，失真补偿系数更新方法和发送装置
公开(公告)号：US08933752B2
公开(公告)日：2015-01-13
申请号：US13277409
申请日：2011-10-20
申请人： Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
发明人： Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F3/24 , H03F2201/3233
摘要： A power amplifier apparatus that includes a processor that performs a first distortion compensation processing on an input signal using a distortion compensation coefficient to obtain a first signal and an amplifier that amplifies the first signal. The processor performs a second distortion compensation processing the amplified signal using the distortion compensation coefficient to obtain a second signal and updates the distortion compensation coefficient to enable convergence between the first signal and the second signal.
摘要翻译：一种功率放大器装置，包括处理器，其使用失真补偿系数对输入信号执行第一失真补偿处理以获得第一信号，以及放大器，其放大第一信号。处理器使用失真补偿系数执行第二失真补偿处理放大信号以获得第二信号，并且更新失真补偿系数，以使能第一信号和第二信号之间的收敛。

4. 发明授权

US08571495B2 Distortion compensation apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US08571495B2
公开(公告)日：2013-10-29
申请号：US12701923
申请日：2010-02-08
申请人： Kazuo Nagatani , Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Shohei Ishikawa
发明人： Kazuo Nagatani , Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Shohei Ishikawa
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04L27/366 , H03F1/3258 , H03F3/195 , H03F3/24 , H03F2201/3233
摘要： A distortion compensation apparatus includes a distortion compensation signal generation unit that performs, on a transmission signal, distortion compensation processing using a series operation; a coefficient updating unit that updates series operation coefficients used for the series operation based on a feedback signal of a power amplification output which is output through power amplification processing of a distortion compensation signal output from the distortion compensation signal generation unit, and based on the distortion compensation signal; a memory that stores the distortion compensation signal corresponding to a transmission signal having a given power value and the feedback signal of the power amplification output as restraint information; and a control unit that performs control so that, in accordance with the power value of the transmission signal, restraint information corresponding to a power value different from the power value of the transmission signal is read and used for updating the series operation coefficients.
摘要翻译：失真补偿装置包括失真补偿信号生成单元，其对传输信号进行使用串联操作的失真补偿处理; 系数更新单元，其基于通过从失真补偿信号生成单元输出的失真补偿信号的功率放大处理输出的功率放大输出的反馈信号，并且基于失真来更新用于串联运算的串联运算系数补偿信号; 存储器，其存储与具有给定功率值的发送信号对应的失真补偿信号和功率放大输出的反馈信号作为约束信息; 以及控制单元，其执行控制，使得根据所述发送信号的功率值，读取与所述发送信号的功率值不同的功率值对应的约束信息，并且用于更新所述串联操作系数。

5. 发明授权

US08451055B2 Distortion compensating apparatus, transmitting apparatus, and distortion compensating method 有权
标题翻译：失真补偿装置，发送装置和失真补偿方法
公开(公告)号：US08451055B2
公开(公告)日：2013-05-28
申请号：US13011295
申请日：2011-01-21
申请人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani
发明人： Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada , Yuichi Utsunomiya , Kazuo Nagatani
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： An apparatus includes: a unit that stores the look-up table including distortion compensation coefficients; a unit that selects addresses according to an input signal, acquires coefficients stored at the selected addresses, and performs the predistortion of the input signal by using the acquired coefficients; a unit that calculates an error signal by comparing with the input signal a feedback signal that indicates an output of a power amplifier to which a result of the predistortion is inputted; a unit that calculates coefficients from the error signal and the acquired coefficients by using the adaptive algorithm; a unit that, for each of the selected addresses, selects coefficients as adequate coefficients from among the calculated coefficients according to the error signal; and a unit that, for each of the selected addresses, calculates an average value of the adequate coefficients and replaces a stored coefficient in the look-up table with the average value.
摘要翻译：一种装置，包括：存储包括失真补偿系数的查找表的单元; 根据输入信号选择地址的单元，获取存储在所选择的地址的系数，并通过使用获取的系数来执行输入信号的预失真; 通过与输入信号进行比较来计算误差信号的单元，反馈信号指示输入预失真结果的功率放大器的输出; 通过使用自适应算法从误差信号和采集的系数计算系数的单元; 对于每个所选择的地址，根据误差信号从所计算的系数中选择系数作为适当系数的单元; 以及对于每个所选择的地址，计算所述适当系数的平均值并且用所述平均值替换所述查找表中存储的系数的单元。

6. 发明授权

US08009756B2 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，发射机，接收机和峰值抑制和恢复系统
公开(公告)号：US08009756B2
公开(公告)日：2011-08-30
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 , H04B1/10 , H04L25/49 , H04L27/08
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。

7. 发明授权

US07991073B2 Distortion compensation apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US07991073B2
公开(公告)日：2011-08-02
申请号：US12639510
申请日：2009-12-16
申请人： Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani
发明人： Yuichi Utsunomiya , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani
IPC分类号： H04L25/49 , H03K7/00
CPC分类号： H03F3/24 , H03F1/3247 , H03F1/3258 , H03F2200/105 , H03F2200/207 , H03F2201/3227 , H03F2201/3233 , H04L27/368
摘要： A distortion compensation apparatus includes a distortion compensation unit that performs distortion compensation processing on a transmission signal by a series operation, a coefficient update unit that updates a group of series operation coefficients used for the series operation based on a feedback signal of transmission signal output that is output after power amplification processing is performed on output of the distortion compensation unit and the transmission signal, an initial coefficient memory that stores the groups of series operation coefficients that become initial values for coefficient update processing by the coefficient update unit, and a power fluctuation detection unit that detects a power fluctuation of the transmission signal and, when the power fluctuation is detected, reads the groups of series operation coefficients from the initial coefficient memory and provides the groups of series operation coefficients to the coefficient update unit.
摘要翻译：失真补偿装置包括：通过串联运算对发送信号进行失真补偿处理的失真补偿部，基于发送信号输出的反馈信号更新用于串联运算的一组串联运算系数的系数更新部，在对失真补偿单元和发送信号的输出执行功率放大处理之后输出;存储由系数更新单元存储成为系数更新处理的初始值的串联运算系数组的初始系数存储器，以及功率波动检测单元，其检测发送信号的功率波动，并且当检测到功率波动时，从初始系数存储器读取串联操作系数组，并将系列操作系数组提供给系数更新单元。

8. 发明授权

US07881404B2 Distortion correction control apparatus and distortion correction control method 有权
标题翻译：失真校正控制装置和失真校正控制方法
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。

9. 发明授权

US07746957B2 Distortion correction control apparatus and distortion correction control method 有权
标题翻译：失真校正控制装置和失真校正控制方法
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。

10. 发明授权

US08520770B2 Amplitude suppressing apparatus and signal transmitting apparatus 有权
标题翻译：振幅抑制装置和信号发送装置
公开(公告)号：US08520770B2
公开(公告)日：2013-08-27
申请号：US12404455
申请日：2009-03-16
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： H04L25/49
CPC分类号： H04L27/2623
摘要： An amplitude suppressing apparatus includes a differential circuit that calculates a differential value of amplitude of an input signal at a point when the amplitude reaches a predetermined threshold. The amplitude suppressing apparatus also includes an amplitude suppressing circuit that suppresses the amplitude of the input signal on the basis of the differential value calculated by the differential circuit.
摘要翻译：振幅抑制装置包括差分电路，该差动电路计算振幅达到预定阈值时的输入信号的振幅的微分值。振幅抑制装置还包括基于由差分电路计算的差分值来抑制输入信号的幅度的幅度抑制电路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式