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11. 发明申请

US20070042726A1 Distortion compensation in wireless digital communication 有权
标题翻译：无线数字通信中的失真补偿
公开(公告)号：US20070042726A1
公开(公告)日：2007-02-22
申请号：US11319046
申请日：2005-12-27
申请人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
发明人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
IPC分类号： H04B1/04
CPC分类号： H04L27/368 , H03F1/3247 , H04L27/364 , H04L2027/0016
摘要： A distortion compensating technique applied to a transmitter for transmitting a quadrature modulated signal in a wireless digital communication system is provided. A phase adjustment value is determined for a quadrature demodulated feedback signal based on comparison between the feedback signal and a reference signal to be transmitted from the transmitter. This phase adjustment value is compared with the previous phase adjustment value. If the comparison result between the current and previous phase adjustment values satisfies a prescribed condition, correction for quadrature modulation, such as DC offset correction, orthogonality correction, or IQ amplitude correction, is performed.
摘要翻译：提供了一种应用于在无线数字通信系统中发送正交调制信号的发射机的失真补偿技术。基于反馈信号和要从发射机发射的参考信号之间的比较，确定正交解调反馈信号的相位调整值。该相位调整值与先前的相位调整值进行比较。如果当前和前一相位调整值之间的比较结果满足规定条件，则执行诸如DC偏移校正，正交校正或IQ振幅校正之类的正交调制的校正。

12. 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。

13. 发明申请

US20080130798A1 Delay Regulating Device 有权
标题翻译：延迟调节装置
公开(公告)号：US20080130798A1
公开(公告)日：2008-06-05
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： H04L27/06
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。

14. 发明申请

US20070253566A1 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：US20070253566A1
公开(公告)日：2007-11-01
申请号：US11504503
申请日：2006-08-15
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： A61F11/06
CPC分类号： H03F1/3247 , H03F1/3294 , H03F3/24 , H03F2200/321 , H03F2200/336 , H03F2200/451 , H03F2201/3233 , H04L27/368
摘要： The present apparatus includes: distortion amount detector which detects the amount of distortion of an output signal of the amplifier; parameter holder; parameter corrector which corrects a parameter held in the parameter holder in such a manner that the distortion amount detected by the distortion amount detector is improved; controller which controls frequency components to be subjected to distortion amount detection that is performed by the distortion amount detector, based on the distortion amounts of a plurality of different frequency components of the output signal of the amplifier and on specification values relating to the distortion amounts. This arrangement makes it possible to set (control) appropriate distortion data measurement point (frequency component to be detected) according to multiple specification values (for example, ACLR specification values) relating to the distortion amount.
摘要翻译：本装置包括：失真量检测器，其检测放大器的输出信号的失真量; 参数持有人参数校正器，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; 控制器，其基于失真量检测器执行的失真量检测的频率分量，基于放大器的输出信号的多个不同频率分量的失真量和与失真量相关的规格值来控制。这种布置使得可以根据与失真量相关的多个规格值（例如，ACLR规范值）来设置（控制）适当的失真数据测量点（要检测的频率分量）。

15. 发明申请

US20060029155A1 Distortion compensating apparatus, compressed data generating method 失效
标题翻译：失真补偿装置，压缩数据生成方法
公开(公告)号：US20060029155A1
公开(公告)日：2006-02-09
申请号：US11113043
申请日：2005-04-25
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： H03F1/3247
摘要： To shorten the time required for writing of the distortion compensation coefficient and to reduce amount of data of the distortion compensation coefficient stored as the initial value of the distortion compensation apparatus. The distortion compensation apparatus for amplifying the transmitting signal after implementing the distortion compensation process comprises a coefficient memory for storing corresponding to each address the coefficient used for the distortion compensation process, an initial value memory for storing the initial value of the coefficient, and a controller for write control corresponding to n (n: natural number equal to 2 or larger) addresses of the coefficient read from the initial value memory corresponding to one address.
摘要翻译：缩短写入失真补偿系数所需的时间并减少作为失真补偿装置的初始值存储的失真补偿系数的数据量。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用于存储对应于每个地址的用于失真补偿处理的系数的系数存储器，用于存储系数的初始值的初始值存储器，以及控制器对应于从对应于一个地址的初始值存储器读取的系数的n（n：等于2或更大的自然数）的地址的写入控制。

16. 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。

17. 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。

18. 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。

19. 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。

20. 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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