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1. 发明授权

US07405680B2 Distortion compensator 失效
标题翻译：失真补偿器
公开(公告)号：US07405680B2
公开(公告)日：2008-07-29
申请号：US10851707
申请日：2004-05-20
申请人： Yasuhito Funyu , Hiroaki Abe , Takeshi Ohba , Tomohiro Nakamura
发明人： Yasuhito Funyu , Hiroaki Abe , Takeshi Ohba , Tomohiro Nakamura
IPC分类号： H03M1/06
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A distortion compensator updating and selecting a distortion compensation coefficient applied to a digital transmission signal so as to reduce the difference between the digital transmission signal and a digital feedback signal is disclosed. The distortion compensator includes a control part that controls the level of an input signal to an analog-to-digital conversion part outputting the digital feedback signal in accordance with the magnitude of the amplitude of the digital transmission signal.
摘要翻译：公开了一种失真补偿器，其更新和选择应用于数字传输信号的失真补偿系数，以便减小数字传输信号和数字反馈信号之间的差异。失真补偿器包括控制部分，控制部分根据数字传输信号幅度的幅度来控制输入到模拟数字转换部分的输入信号的电平，该部分输出数字反馈信号。

2. 发明授权

US07274914B2 Output power error absorbing circuit and multi-carrier transmitter having the same 有权
标题翻译：输出功率误差吸收电路和具有相同功能的多载波发射机
公开(公告)号：US07274914B2
公开(公告)日：2007-09-25
申请号：US11018258
申请日：2004-12-21
申请人： Takeshi Ohba , Yasuhito Funyu , Hiroaki Abe , Tomohiro Nakamura
发明人： Takeshi Ohba , Yasuhito Funyu , Hiroaki Abe , Tomohiro Nakamura
IPC分类号： H04B1/00
CPC分类号： H04L27/2614
摘要： A power correction value generating unit determines a power correction value for minimizing an error, from a reference output power value of a carrier multiplexed signal, generating due to peak power suppression under a carrier setting based on the carrier setting relating to either one or both of the number of carrier signals and frequency arrangement, and peak suppression setting. An output power error correcting unit corrects a signal gain before or after the carrier signals are multiplexed, using the power correction value obtained by the power correction value generating unit. In an apparatus performing peak suppression according to an input limitation power of the power amplifier, it is possible to always obtain a desirable transmission (output) power even when the number of carriers or carrier frequency arrangement varies.
摘要翻译：功率校正值生成单元根据载波复用信号的基准输出功率值，根据载波设定下的峰值功率抑制而产生的误差最小化的功率校正值，基于与载波信号的数量和频率排列以及峰值抑制设置。输出功率误差校正单元使用由功率校正值生成单元获得的功率校正值来校正载波信号被复用之前或之后的信号增益。在根据功率放大器的输入限制功率进行峰值抑制的装置中，即使当载波数或载波频率布置发生变化时，也可以总是获得期望的传输（输出）功率。

3. 发明申请

US20050104758A1 Distortion compensator 失效
标题翻译：失真补偿器
公开(公告)号：US20050104758A1
公开(公告)日：2005-05-19
申请号：US10851707
申请日：2004-05-20
申请人： Yasuhito Funyu , Hiroaki Abe , Takeshi Ohba , Tomohiro Nakamura
发明人： Yasuhito Funyu , Hiroaki Abe , Takeshi Ohba , Tomohiro Nakamura
IPC分类号： H03F1/32 , H03F3/24 , H03G3/30 , H03M1/18 , H04B1/04
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： A distortion compensator updating and selecting a distortion compensation coefficient applied to a digital transmission signal so as to reduce the difference between the digital transmission signal and a digital feedback signal is disclosed. The distortion compensator includes a control part that controls the level of an input signal to an analog-to-digital conversion part outputting the digital feedback signal in accordance with the magnitude of the amplitude of the digital transmission signal.
摘要翻译：公开了一种失真补偿器，其更新和选择应用于数字传输信号的失真补偿系数，以便减少数字传输信号和数字反馈信号之间的差异。失真补偿器包括控制部分，控制部分根据数字传输信号幅度的幅度来控制输入到模拟数字转换部分的输入信号的电平，该部分输出数字反馈信号。

4. 发明申请

US20060046764A1 Output power error absorbing circuit and multi-carrier transmitter having the same 有权
标题翻译：输出功率误差吸收电路和具有相同功能的多载波发射机
公开(公告)号：US20060046764A1
公开(公告)日：2006-03-02
申请号：US11018258
申请日：2004-12-21
申请人： Takeshi Ohba , Yasuhito Funyu , Hiroaki Abe , Tomohiro Nakamura
发明人： Takeshi Ohba , Yasuhito Funyu , Hiroaki Abe , Tomohiro Nakamura
IPC分类号： H04B7/00 , H04B1/00 , H04Q7/20
CPC分类号： H04L27/2614
摘要： A power correction value generating unit determines a power correction value for minimizing an error, from a reference output power value of a carrier multiplexed signal, generating due to peak power suppression under a carrier setting based on the carrier setting relating to either one or both of the number of carrier signals and frequency arrangement, and peak suppression setting. An output power error correcting unit corrects a signal gain before or after the carrier signals are multiplexed, using the power correction value obtained by the power correction value generating unit. In an apparatus performing peak suppression according to an input limitation power of the power amplifier, it is possible to always obtain a desirable transmission (output) power even when the number of carriers or carrier frequency arrangement varies.
摘要翻译：功率校正值生成单元根据载波复用信号的基准输出功率值，根据载波设定下的峰值功率抑制而产生的误差最小化的功率校正值，基于与载波信号的数量和频率排列以及峰值抑制设置。输出功率误差校正单元使用由功率校正值生成单元获得的功率校正值来校正载波信号被复用之前或之后的信号增益。在根据功率放大器的输入限制功率进行峰值抑制的装置中，即使当载波数或载波频率布置发生变化时，也可以总是获得期望的传输（输出）功率。

5. 发明申请

US20110038400A1 WIRELESS APPARATUS AND SIGNAL PROCESSING METHOD 有权
标题翻译：无线设备和信号处理方法
公开(公告)号：US20110038400A1
公开(公告)日：2011-02-17
申请号：US12794124
申请日：2010-06-04
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Takeshi Ohba , Hideharu Shako , Yasuhito Funyu
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Takeshi Ohba , Hideharu Shako , Yasuhito Funyu
IPC分类号： H04L27/18 , H04B1/38
CPC分类号： H04L27/2337
摘要： A wireless apparatus includes: an A/D converter which samples an in-phase signal component and a quadrature signal component from a quadrature-modulated signal of analog form alternately; a digital quadrature demodulation unit which applies digital quadrature demodulation to an output signal of the A/D converter and outputs an in-phase signal and a quadrature signal; and an error detection unit which, based on the in-phase and quadrature signals output from the digital quadrature demodulation unit, detects a time difference error between the sample timing of the in-phase signal component and the sample timing of the quadrature signal component.
摘要翻译：无线装置包括：A / D转换器，其交替地从模拟形式的正交调制信号中采样同相信号分量和正交信号分量; 数字正交解调单元，对A / D转换器的输出信号进行数字正交解调，并输出同相信号和正交信号; 以及误差检测单元，其基于从数字正交解调单元输出的同相和正交信号，检测同相信号分量的采样定时与正交信号分量的采样定时之间的时差误差。

6. 发明授权

US07486744B2 Distortion compensation apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US07486744B2
公开(公告)日：2009-02-03
申请号：US11188782
申请日：2005-07-26
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： H04L27/368 , H03F1/3241 , H03F1/3294 , H03F2200/321 , H03F2200/336 , H03F2201/3233 , H04B2001/0425
摘要： A step size parameter μ is adaptively varied when a distortion compensation coefficient is calculated in a distortion compensation apparatus, relation between transmission signal level and step size parameter μ is considered. The distortion compensation apparatus includes a memory storing distortion compensation coefficient in a designated write address, and outputting distortion compensation coefficient being stored in a designated readout address; a predistortion section performing distortion compensation processing onto a transmission signal, using the distortion compensation coefficient being output from memory; and a distortion compensation section calculating an update value of distortion compensation coefficient, based on error component existent between transmission signal before distortion compensation processing and transmission signal after being amplified by an amplifier. Further, the distortion compensation section modifies magnitude of step size parameter determining degree of effect of error component produced on the update value, when calculating the update value of the distortion compensation coefficient.
摘要翻译：当在失真补偿装置中计算失真补偿系数时，步长参数mu自适应变化，考虑发射信号电平与步长参数mu之间的关系。失真补偿装置包括存储在指定写入地址中的失真补偿系数的存储器，并输出存储在指定的读出地址中的失真补偿系数; 使用从存储器输出的失真补偿系数，对发送信号执行失真补偿处理的预失真部分; 以及失真补偿部，其基于由放大器放大后的失真补偿处理之前的发送信号与发送信号之间存在的误差成分，计算失真补偿系数的更新值。此外，当计算失真补偿系数的更新值时，失真补偿部分修改步长参数确定在更新值上产生的误差分量的影响程度的大小。

7. 发明授权

US07443923B2 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：US07443923B2
公开(公告)日：2008-10-28
申请号：US11437168
申请日：2006-05-19
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 , H03F2200/321 , H03F2201/3233
摘要： The distortion compensating apparatus which adaptively updates a distortion compensation coefficient for an amplifier based on a difference between input and output signals of the amplifier, comprises: a distortion amount detector which detects the amount of distort of an output signal of the amplifier; a parameter holder which holds a parameter having been set therein; a parameter corrector which corrects the parameter in such a manner that the distortion amount detected by the detector is improved; and a distortion amount corrector which corrects the distortion amount detected by the detector in such a manner that the distortion amount is reduced by an offset amount according to a detection error. This arrangement makes it possible to accurately set the parameter relating to difference detection which is a factor of updating of distortion compensation coefficients of the distortion compensating apparatus.
摘要翻译：基于放大器的输入和输出信号之间的差异自适应地更新放大器的失真补偿系数的失真补偿装置包括：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，其保持已设置的参数; 参数校正器，其以使检测器检测到的失真量提高的方式校正参数; 以及失真量校正器，其以使得失真量根据检测误差减小偏移量的方式校正由检测器检测到的失真量。这种布置使得可以精确地设置与作为失真补偿装置的失真补偿系数的更新的因素的差分检测相关的参数。

8. 发明授权

US07430249B2 Carrier state judging device and transmitting device 有权
公开(公告)号：US07430249B2
公开(公告)日：2008-09-30
申请号：US11546910
申请日：2006-10-13
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： H04L5/0016 , H04L27/2614 , H04L27/28
摘要： The present invention is a carrier state judging device having a multiplexing unit multiplexing carrier signals to be inputted in parallel, output control units inputted to the multiplexing unit and performing ON/OFF control of outputs of the carrier signals inputted to the output control units themselves according to predetermined ON/OFF setting values, frequency shift units and giving predetermined frequency shift quantities to the carrier signals inputted to the frequency shift units themselves, a detection unit detecting as to whether or not there is the carrier signal flowing through on each carrier signal transmission path, and a determining unit determining a state of the carrier signals multiplexed by the multiplexing unit on the basis of the ON/OFF setting value with respect to each of the output control units, the frequency shift quantity with respect to each of the frequency shift units and a result of the detection by the detection unit.

9. 发明授权

US07418058B2 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：US07418058B2
公开(公告)日：2008-08-26
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： H04L25/49 , H03C3/08 , H03C1/06
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）。

10. 发明申请

US20080003958A1 Carrier state judging device and transmitting device 有权
标题翻译：载波状态判断装置和发射装置
公开(公告)号：US20080003958A1
公开(公告)日：2008-01-03
申请号：US11546910
申请日：2006-10-13
申请人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
发明人： Takeshi Ohba , Yasuhito Funyu , Hideharu Shako
IPC分类号： H03C1/52
CPC分类号： H04L5/0016 , H04L27/2614 , H04L27/28
摘要： The present invention is a carrier state judging device having a multiplexing unit multiplexing carrier signals to be inputted in parallel, output control units inputted to the multiplexing unit and performing ON/OFF control of outputs of the carrier signals inputted to the output control units themselves according to predetermined ON/OFF setting values, frequency shift units and giving predetermined frequency shift quantities to the carrier signals inputted to the frequency shift units themselves, a detection unit detecting as to whether or not there is the carrier signal flowing through on each carrier signal transmission path, and a determining unit determining a state of the carrier signals multiplexed by the multiplexing unit on the basis of the ON/OFF setting value with respect to each of the output control units, the frequency shift quantity with respect to each of the frequency shift units and a result of the detection by the detection unit.
摘要翻译：本发明是具有多路复用单元的载波状态判断装置，并行输入载波信号，输入到多路复用单元的输出控制单元，对输入到输出控制单元的载波信号的输出执行ON / OFF控制，到预定的ON / OFF设置值，频移单位，并且向输入到频移单元的载波信号赋予预定的频移量;检测单元，检测在每个载波信号传输中是否存在流经的载波信号路径，以及确定单元，根据关于每个输出控制单元的ON / OFF设置值确定由复用单元多路复用的载波信号的状态，相对于每个频移的频移量单元和检测单元的检测结果。

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