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21. 发明申请

US20060023807A1 Distortion compensating apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US20060023807A1
公开(公告)日：2006-02-02
申请号：US11107851
申请日：2005-04-18
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H04L25/03
CPC分类号： H04L27/368
摘要： A distortion compensation apparatus shortens the time until start of the transmission. The distortion compensating apparatus for amplifying the transmitted signal after implementation of the distortion compensation process thereto comprises a coefficient memory operable to store coefficients used for the distortion compensation process, an initial value memory operable to store the initial values of the coefficients, and a controller which controls the coefficient memory to store, with limitation, only the coefficients corresponding to the first portion among those stored in the initial value memory for the initial write to the coefficient memory and to store thereafter the coefficients corresponding to the second portion.
摘要翻译：失真补偿装置缩短直到开始发送的时间。用于在实施失真补偿处理之后放大发送信号的失真补偿装置包括可操作以存储用于失真补偿处理的系数的系数存储器，可操作以存储系数的初始值的初始值存储器，以及控制器，控制系数存储器，仅限于存储在初始值存储器中的那些对应于第一部分的系数用于对系数存储器的初始写入，并且此后存储对应于第二部分的系数。

22. 发明授权

US08565697B2 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：US08565697B2
公开(公告)日：2013-10-22
申请号：US12691036
申请日：2010-01-21
申请人： Hideharu Shako , Takeshi Ohba
发明人： Hideharu Shako , Takeshi Ohba
IPC分类号： H04B1/04 , H04K3/00
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A distortion compensation apparatus having a circuit configured to perform power amplification of a transmission signal; and a circuit configured to feedback the transmission signal output from the circuit configured to perform power amplification and obtain a demodulated signal of the transmission signal, while calculating and holding a distortion compensation coefficient with which an error between the demodulated signal and the transmission signal before the power amplification becomes minimum, to perform distortion compensation of the transmission signal based on the distortion compensation coefficient and provide the compensated transmission signal to the circuit configured to perform the power amplification, the distortion compensation apparatus includes: a gain adjustment unit to adjust a gain of the transmission signal; and a gain control unit to adaptively adjust a gain of the gain adjustment unit based on the held distortion compensation coefficient.
摘要翻译：一种失真补偿装置，具有被配置为执行发送信号的功率放大的电路; 以及电路，被配置为反馈从被配置为执行功率放大的电路输出的发送信号，并获得发送信号的解调信号，同时计算并保持失真补偿系数，在该失真补偿系数之间解调信号与发送信号之前的发送信号之间的误差功率放大变得最小，为了基于失真补偿系数执行发送信号的失真补偿，并且将经补偿的发送信号提供给被配置为执行功率放大的电路，失真补偿装置包括：增益调整单元，传输信号; 以及增益控制单元，用于基于所保持的失真补偿系数自适应地调整所述增益调整单元的增益。

23. 发明授权

US08437425B2 Distortion compensation device, distortion compensation method and wireless apparatus 有权
标题翻译：失真补偿装置，失真补偿方法和无线装置
公开(公告)号：US08437425B2
公开(公告)日：2013-05-07
申请号：US13289210
申请日：2011-11-04
申请人： Satoshi Matsubara , Takeshi Ohba , Hideharu Shako
发明人： Satoshi Matsubara , Takeshi Ohba , Hideharu Shako
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H04L25/03343 , H03F1/3241 , H03F3/19 , H03F2201/3233 , H04L27/368
摘要： A distortion compensation device includes a storage unit storing a plurality of distortion compensation coefficients associated with power values of transmission signals, a distortion compensation processing unit acquiring a distortion compensation coefficient corresponding to a power value of a received transmission signal from among the plurality of distortion compensation coefficients and subjecting the received transmission signal to a distortion compensation process on the basis of the acquired distortion compensation coefficient, a phase calculating unit calculating a phase correction value on the basis of the distortion compensation coefficients, a phase correcting unit generating a reference signal by correcting a phase of the received transmission signal on the basis of the phase correction value, and a correction processing unit performing a correction process for the transmission signal subjected to the distortion compensation process on the basis of the reference signal and a feedback signal from a transmission power amplifier.
摘要翻译：失真补偿装置包括：存储单元，存储与发送信号的功率值相关联的多个失真补偿系数;失真补偿处理单元，从多个失真补偿获取与所接收的发送信号的功率值对应的失真补偿系数; 系数，并且基于获取的失真补偿系数对所接收的发送信号进行失真补偿处理;相位计算单元，基于失真补偿系数来计算相位校正值;相位校正单元，通过校正产生参考信号基于相位校正值的接收到的发送信号的相位，以及校正处理单元，其基于参考信号对经过失真补偿处理的发送信号进行校正处理，以及来自发射功率放大器的反馈信号。

24. 发明授权

US07830979B2 Distortion compensation amplification device and correction method 有权
标题翻译：失真补偿放大装置及校正方法
公开(公告)号：US07830979B2
公开(公告)日：2010-11-09
申请号：US12396993
申请日：2009-03-03
申请人： Hideharu Shako , Takeshi Ohba
发明人： Hideharu Shako , Takeshi Ohba
IPC分类号： H04L25/49
CPC分类号： H03F1/3247 , H03F1/3294 , H03F3/24 , H03F2200/321 , H03F2200/336 , H03F2201/3233 , H04L27/368
摘要： A distortion compensation amplification device which supplies a transmission signal while a distortion of the amplified transmission signal is compensated, the distortion compensation amplification device including a correction unit which corrects a carrier leak and an image of the transmission signal based on a correction value. The distortion compensation amplification device includes a modulation unit which modulates the transmission signal supplied from the correction unit. The distortion compensation amplification device includes a correction value calculating unit which calculates the correction value based on the transmission signal supplied from the modulation unit. The distortion compensation amplification device includes a test signal output unit which supplies a test signal to the correction unit in order to calculate the correction value of the correction value calculating unit when the transmission signal is not transmitted.
摘要翻译：一种失真补偿放大装置，其在补偿放大的发送信号的失真的同时提供发送信号，所述失真补偿放大装置包括校正载波泄漏的校正单元和基于校正值的发送信号的图像。失真补偿放大装置包括：调制部，其对从校正部提供的发送信号进行调制。失真补偿放大装置包括校正值计算单元，该校正值计算单元基于从调制单元提供的发送信号来计算校正值。失真补偿放大装置包括测试信号输出单元，该测试信号输出单元向校正单元提供测试信号，以便当不发送发送信号时计算校正值计算单元的校正值。

25. 发明申请

US20100271125A1 DISTORTION COMPENSATION APPARATUS AND METHOD FOR DETECTING FAILURE IN THE SAME 有权
标题翻译：失真补偿装置及其检测失败的方法
公开(公告)号：US20100271125A1
公开(公告)日：2010-10-28
申请号：US12763326
申请日：2010-04-20
申请人： Takeshi Ohba , Hideharu Shako
发明人： Takeshi Ohba , Hideharu Shako
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F2200/336 , H03F2201/3233
摘要： There is provided a distortion compensation apparatus for compensating distortion of an output of a power amplifier included in a radio transmitter. The distortion compensation apparatus includes a difference value calculator to calculate a difference value between a reference signal and a feedback signal, where the reference signal is branched from an input signal to the power amplifier and the feedback signal is branched from an output from the power amplifier; an integrator to accumulate the difference value; and a failure determiner to determine based on the accumulated difference value whether or not a failure has occurred or not.
摘要翻译：提供了一种用于补偿包括在无线电发射机中的功率放大器的输出失真的失真补偿装置。失真补偿装置包括差值计算器，用于计算参考信号和反馈信号之间的差值，其中参考信号从输入信号分支到功率放大器，并且反馈信号从功率放大器的输出分支 ; 积分器积分差值; 以及故障确定器，基于所累积的差值确定是否发生故障。

26. 发明授权

US07613251B2 Distortion compensating apparatus and method 有权
标题翻译：失真补偿装置及方法
公开(公告)号：US07613251B2
公开(公告)日：2009-11-03
申请号：US11528354
申请日：2006-09-28
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H04L25/49
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/336 , H03F2201/3233
摘要： The apparatus includes: distortion amount detector which detects the amount of distortion of an output signal of an amplifier; parameter holder which holds a parameter having been set therein, the parameter holder being capable of varying the difference according to the parameter set therein; parameter corrector which corrects the parameter held in the parameter holder in such a manner that the distortion amount detected by the distortion amount detector is improved; noise component detector which detects a noise component that can be caused in the output signal resulting from a quadrature modulation; and noise component remover which performs processing for removing the noise component detected by the noise component detector. This arrangement makes it possible to suppress image frequency component generation in an output signal of the amplifier accompanying quadrature modulation and to optimize parameters in distortion compensation.
摘要翻译：该装置包括：失真量检测器，其检测放大器的输出信号的失真量; 参数保持器，其保持已经设置的参数，所述参数保持器能够根据其中设置的参数来改变所述差异; 参数校正器，其以使得由失真量检测器检测到的失真量提高的方式校正参数保持器中保持的参数; 噪声分量检测器，其检测由正交调制产生的输出信号中可能引起的噪声分量; 以及噪声分量去除器，其执行用于去除由噪声分量检测器检测到的噪声分量的处理。这种布置使得可以抑制伴随正交调制的放大器的输出信号中的图像频率分量生成并且优化失真补偿中的参数。

27. 发明授权

US07564921B2 DC offset correction apparatus and method 有权
标题翻译：直流偏移校正装置及方法
公开(公告)号：US07564921B2
公开(公告)日：2009-07-21
申请号：US12016354
申请日：2008-01-18
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H04L25/03
CPC分类号： H04L25/061 , H03M1/1019 , H03M1/66 , H04B1/30 , H04L25/06 , H04L27/364
摘要： A reference signal and a feedback signal are written to memory and the state of a power value of a reference signal is used for judging whether the current signal is in a normal state, burst state, non-modulation state or no-wave transmission state. If the state is judged to be the burst state or no-wave transmission state, a DC offset correction is performed by selecting a feedback signal type DC offset correction method in which a DC offset is corrected by using only a feedback signal. If the state is judged to be the normal state or non-modulation state, a DC offset correction is performed by selecting a reference signal type DC offset correction method in which a DC offset is corrected by using a differential signal between the reference signal and feedback signal.
摘要翻译：将参考信号和反馈信号写入存储器，并且使用参考信号的功率值的状态来判断当前信号是处于正常状态，脉冲串状态，非调制状态还是无波传输状态。如果状态被判断为突发状态或无波传输状态，则通过选择仅通过使用反馈信号校正DC偏移的反馈信号型DC偏移校正方法来执行DC偏移校正。如果状态被判断为正常状态或非调制状态，则通过选择参考信号型DC偏移校正方法来执行DC偏移校正，其中通过使用参考信号和反馈之间的差分信号校正DC偏移信号。

28. 发明授权

US07466764B2 Delay regulating device 有权
标题翻译：延时调节装置
公开(公告)号：US07466764B2
公开(公告)日：2008-12-16
申请号：US11970653
申请日：2008-01-08
申请人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
发明人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
IPC分类号： H04L25/49
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2201/3233
摘要： In a delay regulating device, delay regulation is performed using a delay circuit performing delay regulation in a clock unit and a delay filter performing delay regulation in a tap unit smaller than the clock unit. The delay regulation is performed so as to obtain the maximum value of the correlation value and the minimum value of the error signal. First the delay circuit based on the clock unit is used to control the delay amount of the reference signal so as to obtain the maximum value of the correlation value. The delay filter is used to control the delay amount of the feedback signal so as to obtain the maximum value of the correlation value. Phase adjustment of the reference signal and the feedback signal is performed. The delay amount of the feedback signal is regulated so as to minimize the error signal unit using the delay filter.
摘要翻译：在延迟调节装置中，使用在时钟单元中执行延迟调节的延迟电路和在小于时钟单元的抽头单元中执行延迟调节的延迟滤波器来执行延迟调节。执行延迟调节以获得相关值的最大值和误差信号的最小值。首先，使用基于时钟单元的延迟电路来控制参考信号的延迟量，以获得相关值的最大值。延迟滤波器用于控制反馈信号的延迟量，以获得相关值的最大值。执行参考信号和反馈信号的相位调整。调整反馈信号的延迟量，以便使用延迟滤波器使误差信号单元最小化。

29. 发明授权

US07430250B2 Distortion compensating apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US07430250B2
公开(公告)日：2008-09-30
申请号：US11843065
申请日：2007-08-22
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H04L25/49
CPC分类号： H03F3/24 , H03F1/3247 , H03F2200/204 , H03F2201/3233 , H04B1/0475
摘要： The number of times of referring to of a storing unit in a distortion compensating apparatus is averaged and temporary degradation of the distortion property is avoided. The distortion compensating apparatus include a pre-distorting unit that applies a distortion compensating process to a transmission signal using a distortion compensation coefficient, a distortion compensation calculating unit that calculates a distortion compensation coefficient based on the transmission signal before the distortion compensation and a feedback fed back from an output of a distortion device, an address generating circuit that produces an address corresponding to the transmission signal, and a storing unit that updates the calculated distortion compensation coefficient to the produced address and that stores the produced address. The address generating circuit produces an address corresponding to the transmission signal by multiplying the power of the transmission signal by a predetermined coefficient and varies the predetermined coefficient.
摘要翻译：在失真补偿装置中参考存储单元的次数被平均，并且避免了失真特性的临时劣化。失真补偿装置包括使用失真补偿系数对发送信号应用失真补偿处理的失真前的单位，失真补偿计算单元，其基于失真补偿前的发送信号和反馈馈送来计算失真补偿系数从失真装置的输出返回地址产生电路，产生与发送信号相对应的地址，以及存储单元，将所计算的失真补偿系数更新为所生成的地址，并存储所产生的地址。地址发生电路通过将发送信号的功率乘以预定系数来产生与发送信号相对应的地址，并改变预定系数。

30. 发明授权

US07352308B2 DC offset correction device and method 有权
标题翻译：直流偏移校正装置及方法
公开(公告)号：US07352308B2
公开(公告)日：2008-04-01
申请号：US11407768
申请日：2006-04-20
申请人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
发明人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
IPC分类号： H03M1/06
CPC分类号： H03C3/406
摘要： It is an object of the present invention to provide a DC offset correction means capable of correctly performing DC offset correction even when transmitting a non-modulation signal in radio communication equipment for performing orthogonal modulation by a direct RF modulation method. The DC offset correction device comprises a fixed value setting unit for setting a value for outputting a non-modulation signal with a specific phase from a modulator, a non-modulation signal switch unit for switching between a main signal and the value set by the fixed value setting unit and a DC offset correction control unit for sequentially changing the specific phase of the non-modulation signal outputted from the modulator by sequentially changing the value set by the fixed value setting unit and operating a DC offset correction value to be added to an input signal by a DC offset correction unit, based on feedback signal data generated from the non-modulation signal whose phase is sequentially changed.
摘要翻译：本发明的目的是提供一种DC偏移校正装置，即使在用于通过直接RF调制方法执行正交调制的无线电通信设备中发送非调制信号时，也能够正确地执行DC偏移校正。 DC偏移校正装置包括：固定值设定单元，用于设定用于从调制器输出具有特定相位的非调制信号的值;非调制信号切换单元，用于在主信号与由固定的信号设定的值之间切换值设定单元和直流偏移校正控制单元，用于通过顺序地改变由固定值设定单元设定的值并且将DC偏移校正值作为相加来顺序地改变从调制器输出的非调制信号的特定相位，基于从相位顺序变化的非调制信号生成的反馈信号数据，由DC偏移校正单元输入信号。

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