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11. 发明授权

US07973522B2 DC/DC converter, and power amplifier applying the same 失效
标题翻译： DC / DC转换器和应用它的功率放大器
公开(公告)号：US07973522B2
公开(公告)日：2011-07-05
申请号：US12005380
申请日：2007-12-27
申请人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
发明人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
IPC分类号： G05F1/40
CPC分类号： H03F1/0227 , H02M3/3372 , H03F3/20 , H03F2200/228 , H03F2200/504
摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.
摘要翻译：提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从整流电路是可变的。

12. 发明申请

US20080144338A1 DC/DC converter, and power amplifier applying the same 失效
标题翻译： DC / DC转换器和应用它的功率放大器
公开(公告)号：US20080144338A1
公开(公告)日：2008-06-19
申请号：US12005380
申请日：2007-12-27
申请人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
发明人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
IPC分类号： H02M3/335 , H03G9/00
CPC分类号： H03F1/0227 , H02M3/3372 , H03F3/20 , H03F2200/228 , H03F2200/504
摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.
摘要翻译：提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从整流电路是可变的。

13. 发明授权

US06864745B2 Distortion compensation device 失效
标题翻译：失真补偿装置
公开(公告)号：US06864745B2
公开(公告)日：2005-03-08
申请号：US10687391
申请日：2003-10-15
申请人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba
发明人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba
IPC分类号： H03F1/32 , H04B1/04 , H04B1/62 , H04L27/36 , H03F1/26
CPC分类号： H04L27/368 , H03F1/3241 , H03F1/3247 , H03F2201/3233 , H04B1/62 , H04B2001/0425
摘要： In a distortion compensation device which uses distortion compensation coefficients to subject distortion compensation processing to an input signal and supply the result of the distortion compensation processing to a distorting device, calculates the distortion compensation coefficients based on the input signal before distortion compensation and the feedback signal fed back from the output side of the distorting device, and stores the calculated distortion compensation coefficients in association with the input signal, (1) the feedback signal is AD-converted; (2) the AD-converted output is subjected to fast Fourier transform (FFT) processing; (3) the FFT calculation result is used to calculate the value of either the signal-to-noise ratio SNR, or the adjacent channel leakage power ratio ACLR, or the noise level; (4) the delay time occurring in the distorting device and feedback loop is adjusted such that the difference between the above calculated value at the current time and the above calculated value at the immediately preceding time is either zero, or is equal to or less than a threshold value; and, (5) this adjustment processing is repeated to determine the accurate delay time, and based on this delay time the timing of each of the portions of the distortion compensation device is adjusted.
摘要翻译：在失真补偿装置中，使用失真补偿系数对输入信号进行失真补偿处理，并将失真补偿处理的结果提供给失真装置，基于失真补偿前的输入信号和反馈信号计算失真补偿系数从失真装置的输出侧反馈，并将计算出的失真补偿系数与输入信号相关联，（1）反馈信号进行AD转换; （2）AD转换输出经受快速傅里叶变换（FFT）处理; （3）FFT计算结果用于计算信噪比SNR或相邻信道泄漏功率比ACLR或噪声电平的值; （4）调整在失真装置和反馈回路中发生的延迟时间，使得当前时间的上述计算值与前一时刻的上述计算值之间的差为零或等于或小于阈值; 和（5）重复该调整处理以确定准确的延迟时间，并且基于该延迟时间调整失真补偿装置的每个部分的定时。

14. 发明授权

US06757525B1 Distortion compensating apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US06757525B1
公开(公告)日：2004-06-29
申请号：US10280705
申请日：2002-10-25
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Yasuyuki Oishi , Tokuro Kubo , Hajime Hamada , Nobukazu Fudaba , Mitsuharu Hamano , Tohru Sasaki , Yuki Kanno , Koichi Hanada
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Yasuyuki Oishi , Tokuro Kubo , Hajime Hamada , Nobukazu Fudaba , Mitsuharu Hamano , Tohru Sasaki , Yuki Kanno , Koichi Hanada
IPC分类号： H04B104
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/3288 , H03F2200/372 , H04B2001/0425
摘要： In an adaptive predistorter type distortion compensating apparatus for calculating a distortion compensating coefficient by using an adaptive algorithm so as to reduce an error between a reference signal and a feedback signal of a circuit which generates a distortion on the basis of the reference signal, and for compensating the distortion by providing the distortion compensating coefficient to the reference signal, a phase adjustment circuit is provided for determining a phase shift value which reduces a phase difference between a reference signal and a feedback signal, for correcting the phase of the reference signal or the feedback signal by the phase shift value, and for calculating the distortion compensating apparatus after the correction.
摘要翻译：在一种用于通过使用自适应算法来计算失真补偿系数的自适应预失真器类型失真补偿装置中，以便减少参考信号和基于参考信号产生失真的电路的反馈信号之间的误差，并且对于通过向参考信号提供失真补偿系数来补偿失真，提供相位调整电路，用于确定减小参考信号和反馈信号之间的相位差的相移值，用于校正参考信号的相位或通过相移值反馈信号，并且用于在校正之后计算失真补偿装置。

15. 发明授权

US06567478B2 Radio apparatus having distortion compensating function 有权
公开(公告)号：US06567478B2
公开(公告)日：2003-05-20
申请号：US10037809
申请日：2001-11-07
申请人： Yasuyuki Oishi , Takeshi Takano , Kazuo Nagatani , Tokuro Kubo , Takayoshi Ode
发明人： Yasuyuki Oishi , Takeshi Takano , Kazuo Nagatani , Tokuro Kubo , Takayoshi Ode
IPC分类号： H04L2549
CPC分类号： H04J1/00 , H03F1/3247 , H03F1/34 , H03F3/24 , H04B2001/0433 , H04L27/367 , H04W52/52
摘要： In a radio apparatus which compensates for non-linear distortion of a transmission power amplifier, a distributor feeds back the output signal of the transmission power amplifier, an error-signal estimating arithmetic unit digitally estimates an error signal, which is ascribable to non-linear distortion of the power amplifier, using a transmit signal and feedback signal, the transmit signal and the error signal are DA-converted by separate DA converters, and a combiner combines the output signals of the DA converters and inputs the combined signal to the transmission power amplifier to perform distortion compensation.

16. 发明授权

US07012969B2 Distortion compensating apparatus 失效
标题翻译：失真补偿装置
公开(公告)号：US07012969B2
公开(公告)日：2006-03-14
申请号：US09737196
申请日：2000-12-14
申请人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
发明人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
IPC分类号： H04L25/03
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： Disclosed is a distortion compensating apparatus for correcting the size of a distortion compensation coefficient in such a manner that a transmit signal that has undergone distortion compensation will not exceed the dynamic range of a DA converter. Specifically, before a distortion compensation coefficient hn+1(p) that has been calculated by a calculation unit is stored in a coefficient memory, an assumption is made that distortion compensation will be performed using the distortion compensation coefficient hn+1(p). Then it is determined beforehand whether a signal x(t)*hn+1(p) that will be obtained by this distortion compensation will exceed the limit of a DA converter. If the limit will be exceeded, the size of the distortion compensation coefficient is reduced by a correction unit, the corrected distortion compensation coefficient is stored in the memory and the transmit signal is corrected using the stored distortion compensation coefficient.
摘要翻译：公开了一种失真补偿装置，用于以经过失真补偿的发送信号不会超过DA转换器的动态范围的方式校正失真补偿系数的大小。具体地说，在由计算单元计算出的失真补偿系数h N + 1（p）被存储在系数存储器中之前，假定将使用失真补偿执行失真补偿系数h n + 1（p）。然后，预先确定将通过该失真补偿获得的信号x（t）* h N + 1（p）将超过DA转换器的极限。如果超过极限，则通过校正单元来减小失真补偿系数的大小，将校正的失真补偿系数存储在存储器中，并使用所存储的失真补偿系数校正发送信号。

17. 发明授权

US06836517B2 Distortion compensating apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US06836517B2
公开(公告)日：2004-12-28
申请号：US09745948
申请日：2000-12-22
申请人： Kazuo Nagatani , Tokuro Kubo , Takayoshi Ode , Yasuyuki Oishi
发明人： Kazuo Nagatani , Tokuro Kubo , Takayoshi Ode , Yasuyuki Oishi
IPC分类号： H04K102
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3288
摘要： A distortion compensating apparatus for compensating for a distortion of a transmission power amplifier. A delay time decision unit calculates the correlation between a transmission signal and a feedback signal fed back from the output side of the transmission power amplifier while varying phase difference between both signals, and decides the total delay time caused in the transmission power amplifier and a feedback loop on the basis of the phase difference in which the correlation is the maximum. A delay unit delays the transmission signal before a distortion compensation processing by the total delay time, and inputs the delayed signal into a distortion compensating apparatus arithmetic unit, which calculates and stores a distortion compensation coefficient on the basis of the transmission signal and the feedback signal fed back from the output side of the transmission power amplifier. A pre-distortion unit applies a distortion compensation processing to the transmission signal by using the distortion compensation coefficient.
摘要翻译：一种用于补偿发射功率放大器的失真的失真补偿装置。延迟时间决定单元计算发送信号与从发送功率放大器的输出侧反馈的反馈信号之间的相关性，同时改变两个信号之间的相位差，并且确定在发送功率放大器中引起的总延迟时间和反馈基于相关性最大的相位差进行循环。延迟单元将失真补偿处理之前的发送信号延迟总延迟时间，并将延迟信号输入失真补偿装置运算单元，该运算单元基于发送信号和反馈信号计算并存储失真补偿系数从发射功率放大器的输出侧反馈。预失真单元通过使用失真补偿系数对发送信号应用失真补偿处理。

18. 发明授权

US07519097B2 Spread-signal multiplexing circuit 失效
标题翻译：扩频信号复用电路
公开(公告)号：US07519097B2
公开(公告)日：2009-04-14
申请号：US10279394
申请日：2002-10-24
申请人： Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani
发明人： Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani
IPC分类号： H04B7/216
CPC分类号： H04L5/06
摘要： The invention relates to a spread-signal multiplexing circuit for frequency-multiplexing a plurality of spread signals that were generated in parallel according to the SSMA scheme. An object of the invention is to adapt to various degrees of multiplicity and to keep the SN ratio and the power efficiency high. To this end, a spread-signal multiplexing circuit of the invention comprises an amplitude monitoring part for multiplexing a plurality of spread signals and determining amplitude of a resulting signal in time-series order; a delaying part for delaying the spread signals in parallel by a time that is equal to a propagation delay time of the amplitude monitoring part; and a multiplexing part for generating a multiplexed signal by multiplexing the delayed spread signals while weighting the delayed spread signals in parallel using weights that are smaller as an average value of the determined amplitude is larger.
摘要翻译：本发明涉及一种用于对根据SSMA方案并行生成的多个扩展信号进行频率复用的扩展信号复用电路。本发明的一个目的是适应不同程度的多重性，并保持SN比和功率效率。为此，本发明的扩展信号复用电路包括用于多路复用多个扩展信号并且以时间顺序确定所得信号的幅度的幅度监视部分; 延迟部分，用于将扩展信号并行延迟等于振幅监测部分的传播延迟时间的时间; 以及复用部分，用于通过多路复用延迟的扩展信号来产生多路复用信号，同时使用作为所确定的幅度的平均值较小的权重来并行加权延迟的扩展信号。

19. 发明申请

US20050226346A1 Distortion compensating apparatus 失效
标题翻译：失真补偿装置
公开(公告)号：US20050226346A1
公开(公告)日：2005-10-13
申请号：US11149730
申请日：2005-06-10
申请人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
发明人： Takayoshi Ode , Yasuyuki Oishi , Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa
IPC分类号： H03F1/32 , H03F1/34 , H03F3/24 , H04J1/00 , H04J11/00 , H04L27/26 , H04L27/36 , H04L25/03
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： Disclosed is a distortion compensating apparatus for correcting the size of a distortion compensation coefficient in such a manner that a transmit signal that has undergone distortion compensation will not exceed the dynamic range of a DA converter. Specifically, before a distortion compensation coefficient hn+1(p) that has been calculated by a calculation unit is stored in a coefficient memory, an assumption is made that distortion compensation will be performed using the distortion compensation coefficient hn+1(p). Then it is determined beforehand whether a signal x(t)*hn+1(p) that will be obtained by this distortion compensation will exceed the limit of a DA converter. If the limit will be exceeded, the size of the distortion compensation coefficient is reduced by a correction unit, the corrected distortion compensation coefficient is stored in the memory and the transmit signal is corrected using the stored distortion compensation coefficient.
摘要翻译：公开了一种失真补偿装置，用于以经过失真补偿的发送信号不会超过DA转换器的动态范围的方式校正失真补偿系数的大小。具体地说，在由计算单元计算出的失真补偿系数h N + 1（p）被存储在系数存储器中之前，假定将使用失真补偿执行失真补偿系数h n + 1（p）。然后，预先确定将通过该失真补偿获得的信号x（t）* h N + 1（p）将超过DA转换器的极限。如果超过极限，则通过校正单元来减小失真补偿系数的大小，将校正的失真补偿系数存储在存储器中，并使用所存储的失真补偿系数校正发送信号。

20. 发明授权

US06907085B2 Activation method of communications apparatus with a non-linear distortion compensation device 有权
标题翻译：具有非线性失真补偿装置的通信装置的激活方法
公开(公告)号：US06907085B2
公开(公告)日：2005-06-14
申请号：US09805870
申请日：2001-03-14
申请人： Tokuro Kubo , Takayoshi Ode , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Yasuyuki Oishi
发明人： Tokuro Kubo , Takayoshi Ode , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Yasuyuki Oishi
IPC分类号： H03F1/32 , H04B1/04 , H04L27/00 , H04L27/20 , H04L27/26 , H04B15/00
CPC分类号： H03F1/3247 , H03F1/3282 , H03F1/34 , H03F3/24 , H04B2001/0433
摘要： First, a digital section constituting a linearizer is activated. Then, a feedback loop for updating a distortion compensation coefficient is opened. Then, the analog section on the antenna side is activated from an ADC, including a PA, etc., or a DAC. Then, both the ATT value of an ATT installed in a feedback route for updating the distortion compensation coefficient and the signal delay amount of a signal delay unit are adjusted to make a state such that the distortion compensation coefficient can be accurately updated. Then, the feedback loop is closed, a distortion compensation table having the distortion compensation coefficient as an entry is generated and after the generation is completed, the operation shifts to the normal operation.
摘要翻译：首先，构成线性化器的数字部分被激活。然后，打开用于更新失真补偿系数的反馈回路。然后，天线侧的模拟部分从包括PA等的ADC或DAC激活。然后，调整安装在用于更新失真补偿系数的反馈路径中的ATT的ATT值和信号延迟单元的信号延迟量，使得能够精确地更新失真补偿系数的状态。然后，反馈回路闭合，生成具有作为入口的失真补偿系数的失真补偿表，并且在生成完成之后，操作转移到正常操作。

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