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1.发明申请公开(公告)号：US20130076545A1
公开(公告)日：2013-03-28
申请号：US13425332
申请日：2012-03-20
CPC分类号： H03M1/0836 , H03M1/1215
摘要： A time error estimating device for estimating a sampling time error of each of a plurality of sampling circuits when the sampling circuits generates a plurality of sampling output signals by performing sampling at timings shifted from one another has correlators each configured to obtain a correlation value representing a similarity between the sampling output signals, and a weight adder configured to estimate the sampling time error of the sampling circuits, based on a result obtained by adjusting a weight on the correlation value.
摘要翻译： 一种时间误差估计装置，用于当采样电路通过在彼此偏移的定时进行采样产生多个采样输出信号时，估计多个采样电路中的每一个的采样时间误差，具有各自被配置为获得表示 基于通过调整相关值的权重而获得的结果，采样输出信号之间的相似度和配置为估计采样电路的采样时间误差的加权加法器。
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2.发明授权公开(公告)号：US08659454B2
公开(公告)日：2014-02-25
申请号：US13425332
申请日：2012-03-20
IPC分类号： H03M1/06
CPC分类号： H03M1/0836 , H03M1/1215
摘要： A time error estimating device for estimating a sampling time error of each of a plurality of sampling circuits when the sampling circuits generates a plurality of sampling output signals by performing sampling at timings shifted from one another has correlators each configured to obtain a correlation value representing a similarity between the sampling output signals, and a weight adder configured to estimate the sampling time error of the sampling circuits, based on a result obtained by adjusting a weight on the correlation value.
摘要翻译： 一种时间误差估计装置，用于当采样电路通过在彼此偏移的定时进行采样产生多个采样输出信号时，估计多个采样电路中的每一个的采样时间误差，具有各自被配置为获得表示 基于通过调整相关值的权重而获得的结果，采样输出信号之间的相似度和配置为估计采样电路的采样时间误差的加权加法器。
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公开(公告)号：US20130076544A1
公开(公告)日：2013-03-28
申请号：US13425317
申请日：2012-03-20
申请人： Naoya Waki , Junya Matsuno , Takafumi Yamaji , Masanori Furuta
发明人： Naoya Waki , Junya Matsuno , Takafumi Yamaji , Masanori Furuta
IPC分类号： H03M1/06
CPC分类号： H03M1/0626 , H03M1/0836 , H03M1/1215
摘要： According to one embodiment, an analogue to digital converter converts an analogue input signal to a digital output signal. The converter includes an analogue to digital converting unit, a multiplexer, a pseudo-alias signal generator, a gain controller, and an alias signal compensator. The analogue to digital converting unit converts the analogue input signal to a plurality of digital signals. The multiplexer sequentially selects one of the digital signals and outputs the selected digital signal as a multiplexer output. The pseudo-alias signal generator generates a plurality of pseudo-alias signals from the digital signals. The pseudo-alias signal simulates an alias signal component in the multiplexer output. The gain controller generates a plurality of gain control signals by using the pseudo-alias signals. The gain control signal controls gain of the digital output signal. The alias signal compensator compensates the alias signal component by using the gain control signals.
摘要翻译： 根据一个实施例，模数转换器将模拟输入信号转换成数字输出信号。 转换器包括模数转换单元，多路复用器，伪别名信号发生器，增益控制器和别名信号补偿器。 模数转换单元将模拟输入信号转换为多个数字信号。 多路复用器顺序地选择一个数字信号并输出所选择的数字信号作为多路复用器输出。 伪别名信号发生器从数字信号产生多个伪别名信号。 伪别名信号模拟复用器输出中的别名信号分量。 增益控制器通过使用伪别名信号来产生多个增益控制信号。 增益控制信号控制数字输出信号的增益。 别名信号补偿器通过使用增益控制信号来补偿别名信号分量。
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公开(公告)号：US08502712B2
公开(公告)日：2013-08-06
申请号：US13425317
申请日：2012-03-20
申请人： Naoya Waki , Junya Matsuno , Takafumi Yamaji , Masanori Furuta
发明人： Naoya Waki , Junya Matsuno , Takafumi Yamaji , Masanori Furuta
IPC分类号： H03M1/06
CPC分类号： H03M1/0626 , H03M1/0836 , H03M1/1215
摘要： According to one embodiment, an analogue to digital converter converts an analogue input signal to a digital output signal. The converter includes an analogue to digital converting unit, a multiplexer, a pseudo-alias signal generator, a gain controller, and an alias signal compensator. The analogue to digital converting unit converts the analogue input signal to a plurality of digital signals. The multiplexer sequentially selects one of the digital signals and outputs the selected digital signal as a multiplexer output. The pseudo-alias signal generator generates a plurality of pseudo-alias signals from the digital signals. The pseudo-alias signal simulates an alias signal component in the multiplexer output. The gain controller generates a plurality of gain control signals by using the pseudo-alias signals. The gain control signal controls gain of the digital output signal. The alias signal compensator compensates the alias signal component by using the gain control signals.
摘要翻译： 根据一个实施例，模数转换器将模拟输入信号转换成数字输出信号。 转换器包括模数转换单元，多路复用器，伪别名信号发生器，增益控制器和别名信号补偿器。 模数转换单元将模拟输入信号转换为多个数字信号。 多路复用器顺序地选择一个数字信号并输出所选择的数字信号作为多路复用器输出。 伪别名信号发生器从数字信号产生多个伪别名信号。 伪别名信号模拟复用器输出中的别名信号分量。 增益控制器通过使用伪别名信号来产生多个增益控制信号。 增益控制信号控制数字输出信号的增益。 别名信号补偿器通过使用增益控制信号来补偿别名信号分量。
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公开(公告)号：US20100112971A1
公开(公告)日：2010-05-06
申请号：US12503199
申请日：2009-07-15
申请人： Junya Matsuno , Takafumi Yamaji , Tetsuro Itakura
发明人： Junya Matsuno , Takafumi Yamaji , Tetsuro Itakura
CPC分类号： H04B1/30
摘要： A receiver includes a multiphase mixer that multiplies a received radio signal by multiphase local signals the number of which is the same as an integer having a first prime factor and a second prime factor different from the first prime factor, and generates first multiphase baseband signals the number of which is the same as the integer, a first processing circuit that suppresses common modes for first multiphase signal groups formed by dividing the first multiphase baseband signals into groups of signals the number of which is the same as the first prime factor, and generates second multiphase baseband signals, and a second processing circuit that suppresses common modes for second multiphase signal groups formed by dividing the second multiphase baseband signals into groups of signals the number of which is the same as the second prime factor, and generates third multiphase baseband signals.
摘要翻译： 接收机包括：多相混合器，其通过多个本地信号乘以接收的无线电信号，多相本地信号的数量与具有不同于第一素因子的第一素因子和第二素因子的整数相同，并且生成第一多相基带信号 其数量与整数相同，第一处理电路抑制通过将第一多相基带信号划分成与第一素数相同数量的信号组而形成的第一多相信号组的共模，并产生 第二多相基带信号，以及第二处理电路，其抑制通过将第二多相基带信号划分成与第二素因数相同的信号组而形成的第二多相信号组的共模，并且产生第三多相基带信号 。
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公开(公告)号：US20100233986A1
公开(公告)日：2010-09-16
申请号：US12579742
申请日：2009-10-15
申请人： Takafumi Yamaji , Junya Matsuno , Hiromitsu Aoyama
发明人： Takafumi Yamaji , Junya Matsuno , Hiromitsu Aoyama
IPC分类号： H04B15/00
摘要： A receiver includes a high-frequency filter which extracts, from a radio signal, a high-frequency signal, a first frequency converter which performs frequency conversion on the high-frequency signal using a first local signal, to obtain a first baseband signal, a second frequency converter which performs frequency conversion on the high-frequency signal using a second local signal, to obtain a second baseband signal, the second local signal having a frequency equal to an integral multiple of a frequency of the first local signal, and a subtraction processing unit configured to multiply the second baseband signal by a control coefficient for amplitude adjustment to obtain a product signal, and subtract the product signal from the first baseband signal to obtain a residual signal.
摘要翻译： 接收机包括从无线电信号中提取高频信号的高频滤波器，使用第一本地信号对高频信号进行频率转换的第一频率转换器，以获得第一基带信号， 第二频率转换器，其使用第二本地信号对所述高频信号进行频率转换，以获得第二基带信号，所述第二本地信号具有等于所述第一本地信号的频率的整数倍的频率，以及减法 处理单元，被配置为将第二基带信号乘以用于幅度调整的控制系数以获得乘积信号，并从第一基带信号中减去乘积信号以获得残留信号。
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公开(公告)号：US08831153B2
公开(公告)日：2014-09-09
申请号：US13724277
申请日：2012-12-21
申请人： Hidenori Okuni , Junya Matsuno , Hideo Kasami , Tsuyoshi Kogawa
发明人： Hidenori Okuni , Junya Matsuno , Hideo Kasami , Tsuyoshi Kogawa
CPC分类号： H04L27/38 , H04L27/3863
摘要： According to one embodiment, a quadrature error compensating circuit for acquiring an in-phase component signal and a quadrature component signal, includes a first filter, a first multiplier, a first subtractor, a second filter, a correlation calculating circuit. The first multiplier multiplies the in-phase component signal by a control value. The correlation calculating circuit calculates a cross-correlation value between an output of the first filter and an output of the second filter, and uses the cross-correlation value as the control value.
摘要翻译： 根据一个实施例，用于获取同相分量信号和正交分量信号的正交误差补偿电路包括第一滤波器，第一乘法器，第一减法器，第二滤波器，相关计算电路。 第一乘法器将同相分量信号乘以控制值。 相关计算电路计算第一滤波器的输出和第二滤波器的输出之间的互相关值，并使用互相关值作为控制值。
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公开(公告)号：US08674861B2
公开(公告)日：2014-03-18
申请号：US13681913
申请日：2012-11-20
申请人： Junya Matsuno , Tetsuro Itakura
发明人： Junya Matsuno , Tetsuro Itakura
CPC分类号： H03M1/0607 , H03M1/1023 , H03M1/12
摘要： An embodied ADC includes a sampling unit sampling differential input signal to output differential sampled signal which has first and second sampled signals. The ADC includes a reference signal generator generating first and second reference signals and a preamplifier amplifying the differential sampled signal to output a differential amplification signal having first and second amplified outputs. The preamplifier has a first differential amplifier amplifying the first sampled signal using the first reference signal and a second differential amplifier amplifying the second sampled signal using the second reference signal. The ADC includes a comparator comparing the first and second amplified outputs and a correction controller controlling common-mode voltage levels of the first and second reference signals or common-mode voltage levels of the first and second sampled signals in accordance with the operations of the first and second differential amplifiers.
摘要翻译： 实施的ADC包括采样单元采样差分输入信号以输出具有第一和第二采样信号的差分采样信号。 ADC包括产生第一和第二参考信号的参考信号发生器和放大差分采样信号的前置放大器以输出具有第一和第二放大输出的差分放大信号。 前置放大器具有使用第一参考信号放大第一采样信号的第一差分放大器和使用第二参考信号放大第二采样信号的第二差分放大器。 ADC包括比较第一和第二放大输出的比较器和校正控制器，其根据第一和第二放大输出的操作控制第一和第二参考信号的共模电压电平或第一和第二采样信号的共模电压电平 和第二差分放大器。
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公开(公告)号：US08537039B2
公开(公告)日：2013-09-17
申请号：US13409516
申请日：2012-03-01
申请人： Junya Matsuno , Tetsuro Itakura
发明人： Junya Matsuno , Tetsuro Itakura
IPC分类号： H03M1/06
CPC分类号： H03M1/0614 , H03M1/12 , H03M1/1225
摘要： There is provided a distortion correcting device in which a first A/D converter A/D converts a first input signal to obtain a first converted signal, a second A/D converter A/D converts a second input signal to obtain a second converted signal wherein the second input signal is a signal obtained by reducing an amplitude of the first input signal, or the first input signal is a signal obtained by increasing an amplitude of the second input signal, the exponentiator obtains an exponential signal by raising the second converted signal to an n-th power (“n” is an integer of 2 or more), a adaptive correlation controller carries out adaptive correlation control based on the exponential signal and the second converted signal to generate a distortion signal that is an n-th power component contained in the exponential signal, and a distortion remover removes the distortion signal from the first converted signal.
摘要翻译： 提供了一种失真校正装置，其中第一A / D转换器A / D转换第一输入信号以获得第一转换信号，第二A / D转换器A / D转换第二输入信号以获得第二转换信号 其中所述第二输入信号是通过减小所述第一输入信号的幅度获得的信号，或者所述第一输入信号是通过增加所述第二输入信号的幅度而获得的信号，所述指数器通过提高所述第二转换信号来获得指数信号 到“n”次幂（“n”是2以上的整数）时，自适应相关控制器根据指数信号和第二转换信号进行自适应相关控制，生成作为第n次方的失真信号 分量包含在指数信号中，并且失真去除器从第一转换信号中去除失真信号。
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公开(公告)号：US08723713B2
公开(公告)日：2014-05-13
申请号：US13717410
申请日：2012-12-17
申请人： Junya Matsuno , Tetsuro Itakura
发明人： Junya Matsuno , Tetsuro Itakura
IPC分类号： H03M1/36
摘要： There is provided a signal interpolation device, including: a first amplifier to generate a first signal representing a difference between an input signal and a first reference voltage; a second amplifier to generate a second signal representing a difference between the input signal and a second reference voltage; a first output amplifier to amplify the first signal to generate a first output signal; a second output amplifier to amplify the second signal to generate a second output signal; a third output amplifier to amplify a sum of a first interpolation signal and the first signal to generate a third output signal, the first interpolation signal representing a voltage generated by dividing a difference between the first reference voltage and the second reference voltage by “2^n”; and a fourth output amplifier to amplify a difference between the second signal and the first interpolation signal to generate a fourth output signal.
摘要翻译： 提供了一种信号插值装置，包括：第一放大器，用于产生表示输入信号和第一参考电压之间的差的第一信号; 第二放大器，用于产生表示所述输入信号和第二参考电压之间的差的第二信号; 第一输出放大器，用于放大第一信号以产生第一输出信号; 第二输出放大器，用于放大第二信号以产生第二输出信号; 第三输出放大器，用于放大第一内插信号和第一信号的和以产生第三输出信号，第一内插信号表示通过将第一参考电压和第二参考电压之差除以“2 ^ n“; 以及第四输出放大器，用于放大第二信号和第一内插信号之间的差以产生第四输出信号。
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