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31. 发明申请

US20070030920A1 Address generating device and method of generating address 有权
标题翻译：地址生成装置和地址生成方法
公开(公告)号：US20070030920A1
公开(公告)日：2007-02-08
申请号：US11268652
申请日：2005-11-08
申请人： Yasuhito Funyu , Takeshi Ohba , Hideharu Shako
发明人： Yasuhito Funyu , Takeshi Ohba , Hideharu Shako
IPC分类号： H04L25/03
CPC分类号： H03F1/3247 , H03F2201/3233
摘要： An address frequency operation unit counts frequencies of occurrences of addresses output by an address conversion unit 14, and a CPU 16 rewrites an address conversion table in the address conversion unit 14 based on a comparison between the counted result and a threshold value. When the frequency of the address is lower than the threshold value, the frequency of occurrence of an output address is increased by increasing the number of input addresses corresponding to one output address. Also, distortion in an output signal which is fed back is detected and the address conversion table is rewritten so that the distortion is decreased.
摘要翻译：地址频率操作单元对由地址转换单元14输出的地址的出现频率进行计数，并且CPU16基于计数结果和阈值之间的比较来重写地址转换单元14中的地址转换表。当地址的频率低于阈值时，通过增加对应于一个输出地址的输入地址的数量来增加输出地址的出现频率。此外，检测反馈的输出信号的失真，并且改写地址转换表，使得失真减小。

32. 发明申请

US20060215783A1 Distortion compensation apparatus 有权
公开(公告)号：US20060215783A1
公开(公告)日：2006-09-28
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： H04L25/03
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.

33. 发明申请

US20060188038A1 Distortion compensation apparatus 有权
标题翻译：失真补偿装置
公开(公告)号：US20060188038A1
公开(公告)日：2006-08-24
申请号：US11147462
申请日：2005-06-08
申请人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
发明人： Hideharu Shako , Yasuhito Funyu , Takeshi Ohba
IPC分类号： H04L25/08
CPC分类号： H04L27/368 , H03F1/3247
摘要： A distortion compensation apparatus is provided to restrain an increased calculation time caused by a large amount of calculation required for obtaining a phase variation amount for compensation from the correlation. The distortion compensation apparatus includes an update calculation section calculating a distortion compensation coefficient by use of an adaptive algorithm; a distortion compensation section performing distortion compensation to the transmission signal, based on the distortion compensation coefficient being read out from the distortion compensation coefficient storage; a correlation calculation section calculating a real part of correlation and an imaginary part of correlation of each the reference signal and the feedback signal; and a phase rotation section compensating a relative phase deviation between the reference signal and the feedback signal, based on the real part of correlation and the imaginary part of correlation calculated by the correlation calculation section, wherein the update calculation section calculates a distortion compensation coefficient using the post-compensation signal.
摘要翻译：提供了一种失真补偿装置，用于抑制从相关性获得用于补偿的相位变化量所需的大量计算所引起的增加的计算时间。失真补偿装置包括：更新计算部，利用自适应算法计算失真补偿系数; 基于从失真补偿系数存储器读出的失真补偿系数，对发送信号进行失真补偿的失真补偿部; 相关计算部分，计算每个参考信号和反馈信号的相关的实部和相关的虚部; 以及相位旋转部，其基于由所述相关计算部计算出的相关的实部和所述相关的虚部，补偿所述参考信号和所述反馈信号之间的相对相位偏差，其中，所述更新计算部使用后补偿信号。

34. 发明授权

US08472578B2 Radio apparatus, radio apparatus controller, and synchronization establishing method 有权
标题翻译：无线电设备，无线电设备控制器和同步建立方法
公开(公告)号：US08472578B2
公开(公告)日：2013-06-25
申请号：US13363831
申请日：2012-02-01
申请人： Hideharu Shako , Takeshi Ohba , Satoshi Matsubara
发明人： Hideharu Shako , Takeshi Ohba , Satoshi Matsubara
IPC分类号： H04L7/00
CPC分类号： H04J3/0641 , H04J3/0647 , H04W56/00
摘要： A radio apparatus includes: first and second reception units to receive first and second signals from first and second radio apparatus controllers, respectively; first and second synchronous clock generation units to generate first and second recovery clocks from clock components included in the first and second signals received by the reception units, respectively; a clock synchronization detection unit to detect whether or not the second recovery clock is synchronous with the first recovery clock; a code selection unit to select a code indicating the synchronous state according to a detection result of the synchronization detection unit; a signal processing unit of generate a third signal to which the code selected by the code selection unit is added and which is synchronous with the first recovery clock; and a transmission unit to transmit the third signal generated by the signal processing unit to the second radio apparatus controller.
摘要翻译：无线电设备包括：分别从第一和第二无线电设备控制器接收第一和第二信号的第一和第二接收单元; 第一和第二同步时钟产生单元，用于分别由接收单元接收的第一和第二信号中包括的时钟分量产生第一和第二恢复时钟; 时钟同步检测单元，用于检测第二恢复时钟是否与第一恢复时钟同步; 代码选择单元，用于根据同步检测单元的检测结果选择指示同步状态的代码; 信号处理单元，生成添加了由代码选择单元选择的代码并与第一恢复时钟同步的第三信号; 以及传输单元，用于将由信号处理单元生成的第三信号发送到第二无线电设备控制器。

35. 发明授权

US07962107B2 Transmission device 有权
标题翻译：传输设备
公开(公告)号：US07962107B2
公开(公告)日：2011-06-14
申请号：US12130639
申请日：2008-05-30
申请人： Hideharu Shako , Takeshi Ohba , Tomoyoshi Nohira
发明人： Hideharu Shako , Takeshi Ohba , Tomoyoshi Nohira
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H03F3/72
摘要： In a transmission device including an RF power amplifier with less number of terminals for monitoring an input/output signal of the RF power amplifier, there are provided with an input signal detector detecting the input signal; an output signal detector detecting the output signal; a first power amplifier switch switching ON or OFF the power amplifier; a monitor terminal; and an RF switch selecting an input signal or output signal of the power amplifier to be transmitted to the monitor terminal, in association with the first power amplifier switch being switched ON or OFF.
摘要翻译：在包括具有较少数量的终端的RF功率放大器的发射装置中，用于监测RF功率放大器的输入/输出信号，其中设置有检测输入信号的输入信号检测器; 检测输出信号的输出信号检测器; 第一功率放大器开关接通或关断功率放大器; 监控终端; 以及RF开关，其与第一功率放大器开关接通或断开相关联，选择要发送到监视终端的功率放大器的输入信号或输出信号。

36. 发明授权

US07961046B2 Distortion compensating amplifier and front-end distortion compensation amplifying device 有权
标题翻译：失真补偿放大器和前端失真补偿放大装置
公开(公告)号：US07961046B2
公开(公告)日：2011-06-14
申请号：US12415138
申请日：2009-03-31
申请人： Hideharu Shako , Takeshi Ohba
发明人： Hideharu Shako , Takeshi Ohba
IPC分类号： H03F1/26
CPC分类号： H03F1/34 , H03F1/3247
摘要： A distortion compensating amplifier including a forward circuit and a feedback circuit and performing distortion compensation of a signal in the forward circuit by use of a gain of the feedback circuit, includes a detecting unit which detects that the gain of the forward circuit is changed, a calculating unit which calculates, when the detecting unit detects that the gain of the forward circuit is changed, the gain of the feedback circuit on the basis of an input signal to the forward circuit and an output signal from the forward circuit, and a feedback gain updating unit which updates the present gain of the feedback circuit with the gain calculated by the calculating unit.
摘要翻译：包括正向电路和反馈电路的失真补偿放大器，通过使用反馈电路的增益对正向电路中的信号执行失真补偿，包括检测单元，其检测正向电路的增益被改变，计算单元，当检测单元检测到正向电路的增益改变时，基于正向电路的输入信号和来自正向电路的输出信号，反馈电路的增益和反馈增益更新单元，其利用由计算单元计算出的增益来更新反馈电路的当前增益。

37. 发明授权

US07911254B2 Offset correction device and method 有权
标题翻译：偏移校正装置及方法
公开(公告)号：US07911254B2
公开(公告)日：2011-03-22
申请号：US12538321
申请日：2009-08-10
申请人： Takeshi Ohba , Hideharu Shako
发明人： Takeshi Ohba , Hideharu Shako
IPC分类号： H03L5/00
CPC分类号： H04L27/0014 , H03F1/34 , H03F3/24 , H04B1/0475 , H04B2001/0433 , H04L2027/0016 , H04L2027/0018
摘要： A direct-current-offset correction device includes a digital-to-analog converter that converts a digital signal into an analog signal, a modulator that modulates the analog signal to generate a modulated signal, a direct-current-offset correction value calculation unit that calculates a direct-current-offset correction value as a reverse characteristic component of a carrier leak occurring in the modulated signal based on a demodulated signal which is demodulated by feeding back the modulated signal, a direct-current-offset correction unit that corrects a direct-current-offset on the digital signal based on the direct-current-offset correction value, a correction value detection unit that detects whether or not the direct-current-offset correction value is zero or a neighboring value of zero, and an offset generation unit that superimposes a direct-current-offset component on the analog signal based on a detection result of the correction value detection unit.
摘要翻译：直流偏移校正装置包括将数字信号转换为模拟信号的数模转换器，调制模拟信号以产生调制信号的调制器，直流偏移校正值计算单元，基于通过反馈调制信号进行解调的解调信号，计算直流偏移校正值作为在调制信号中发生的载波泄漏的反向特性分量;直流偏移校正单元，其校正直接基于直流偏移校正值对数字信号进行电流偏移;校正值检测单元，其检测直流偏移校正值是否为零，或相邻值为零;以及偏移生成单元，其基于校正值检测单元的检测结果将直流偏移分量叠加在模拟信号上。

38. 发明授权

US07711069B2 Distortion-compensation amplification apparatus and distortion compensation method 有权
标题翻译：失真补偿放大装置和失真补偿方法
公开(公告)号：US07711069B2
公开(公告)日：2010-05-04
申请号：US12206058
申请日：2008-09-08
申请人： Hideharu Shako , Takeshi Ohba
发明人： Hideharu Shako , Takeshi Ohba
IPC分类号： H04L25/49 , H03K7/00
CPC分类号： H03F1/3282 , H03F1/3247 , H03F2201/3233
摘要： Distortion-compensation amplification apparatus that can obtain an appropriate error vector magnitude without increasing power consumption and can suppress the distortion of a transmission signal appropriately. A distortion compensation section applies distortion compensation to the transmission signal. An amplification section amplifies the transmission signal to which distortion compensation has been applied by the distortion compensation section. A frequency component calculation section calculates the power of frequency components of the transmission signal amplified by the amplification section. A peak suppression section suppresses the peak value of the transmission signal input to the distortion compensation section in accordance with the power of the frequency components calculated by the frequency component calculation section.
摘要翻译：失真补偿放大装置，其可以在不增加功耗的情况下获得适当的误差矢量幅度，并且可以适当地抑制发射信号的失真。失真补偿部对发送信号进行失真补偿。放大部分放大由失真补偿部分施加了失真补偿的发送信号。频率分量计算部分计算由放大部分放大的发射信号的频率分量的功率。峰值抑制部根据由频率分量计算部计算出的频率分量的功率，抑制输入到失真补偿部的发送信号的峰值。

39. 发明申请

US20080299920A1 Transmission Device 有权
标题翻译：传输设备
公开(公告)号：US20080299920A1
公开(公告)日：2008-12-04
申请号：US12130639
申请日：2008-05-30
申请人： Hideharu Shako , Takeshi Ohba , Tomoyoshi Nohira
发明人： Hideharu Shako , Takeshi Ohba , Tomoyoshi Nohira
IPC分类号： H04B1/04
CPC分类号： H03F3/72
摘要： In a transmission device including an RF power amplifier with less number of terminals for monitoring an input/output signal of the RF power amplifier, there are provided with an input signal detector detecting the input signal; an output signal detector detecting the output signal; a first power amplifier switch switching ON or OFF the power amplifier; a monitor terminal; and an RF switch selecting an input signal or output signal of the power amplifier to be transmitted to the monitor terminal, in association with the first power amplifier switch being switched ON or OFF.
摘要翻译：在包括具有较少数量的终端的RF功率放大器的发射装置中，用于监测RF功率放大器的输入/输出信号，其中设置有检测输入信号的输入信号检测器; 检测输出信号的输出信号检测器; 第一功率放大器开关接通或关断功率放大器; 监控终端; 以及RF开关，其与第一功率放大器开关接通或断开相关联，选择要发送到监视终端的功率放大器的输入信号或输出信号。

40. 发明授权

US08311493B2 Radio apparatus, distortion correction device, and distortion correction method 有权
标题翻译：无线电设备，失真校正装置和失真校正方法
公开(公告)号：US08311493B2
公开(公告)日：2012-11-13
申请号：US13029276
申请日：2011-02-17
申请人： Satoshi Matsubara , Shuya Hirata , Takeshi Ohba , Hideharu Shako , Jun Sugiyama
发明人： Satoshi Matsubara , Shuya Hirata , Takeshi Ohba , Hideharu Shako , Jun Sugiyama
IPC分类号： H04B1/04 , H04B7/00
CPC分类号： H03F1/3247
摘要： An error between the power of an input signal, which is input to a power amplifier, and the power of an output signal, which is output from the power amplifier, is calculated. The calculated error is normalized according to the power of the input signal or the power of the output signal. A distortion correction coefficient, which is stored in a predetermined storage unit in association with the power of the input signal, is updated using the normalized error.
摘要翻译：计算输入到功率放大器的输入信号的功率与从功率放大器输出的输出信号的功率之间的误差。计算误差根据输入信号的功率或输出信号的功率进行归一化。使用归一化误差来更新存储在与输入信号的功率相关联的预定存储单元中的失真校正系数。

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