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41. 发明授权

US07106249B2 Phase calibration method and apparatus 有权
标题翻译：相位校准方法和装置
公开(公告)号：US07106249B2
公开(公告)日：2006-09-12
申请号：US10920994
申请日：2004-08-18
申请人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba
发明人： Tokuro Kubo , Kazuo Nagatani , Hajime Hamada , Hiroyoshi Ishikawa , Nobukazu Fudaba
IPC分类号： G01S7/40 , H01Q3/26
CPC分类号： H04B17/0085 , H01Q3/267 , H04B17/12
摘要： Disclosed is a phase calibration method for inserting a calibration signal (SC) into main signals (SM1 to SMn) of a plurality of branches in turn, estimating the phase characteristic of an analog circuit to which a respective one of the main signals is input and calibrating the phase of each main signal. The method includes steps of outputting a first combined signal obtained by combining output signals from the analog circuits (62a to 62n) in all branches, outputting a second combined signal obtained by combining the main signals in all branches, extracting the calibration signal by removing the second combined signal from the first combined signal in a calibration signal extracting unit (64), estimating the phase characteristics of the analog circuits, to which the main signals having the inserted calibration signal are input, based upon a change in phase of the calibration signal, and subjecting the main signals to phase adjustment having characteristics that are opposite the phase characteristics.
摘要翻译：公开了一种用于依次将多个分支的主信号（SM 1至SM n）插入校准信号（SC）的相位校准方法，估计相应一个主信号被输入的模拟电路的相位特性并校准每个主信号的相位。该方法包括以下步骤：输出通过在所有分支中组合来自模拟电路（62a至62n）的输出信号而获得的第一组合信号，输出通过组合所有分支中的主信号而获得的第二组合信号，通过在校准信号提取单元（64）中从所述第一组合信号中去除所述第二组合信号，基于所述校准信号提取单元（64）的相位变化估计输入了具有插入的校准信号的主信号的模拟电路的相位特性校准信号，并对主信号进行相位调整，具有与相位特性相反的特性。

42. 发明授权

US5937005A Error rate measurement apparatus for a mobile radio communications system 失效
标题翻译：用于移动无线电通信系统的误码率测量装置
公开(公告)号：US5937005A
公开(公告)日：1999-08-10
申请号：US655389
申请日：1996-05-30
申请人： Kazuhisa Obuchi , Morihiko Minowa , Tokuro Kubo
发明人： Kazuhisa Obuchi , Morihiko Minowa , Tokuro Kubo
IPC分类号： H04L1/00 , H04B7/08 , H04B7/26 , H04B17/00 , H04B17/309 , H04L1/06 , H04W24/00 , H04W52/04 , H04W52/20 , H04W88/02 , H04B3/46
CPC分类号： H04L1/203 , H04B17/309 , H04B7/08 , H04W52/20
摘要： An error rate measurement apparatus for a mobile radio communications system, which quickly and accurately measures the error rate of received signals on a real-time basis with simple hardware. The apparatus is equipped with a plurality of receivers for receiving signals from a single transmission source with antennas spaced apart from each other. A bit comparator compares the received signals bit by bit and sends an error detection pulse signal to an error rate calculator if it has detected a bit error. The error rate calculator counts the number of error detection pulse signals sent from the bit comparator for a predetermined period. The error rate calculator then divides this pulse count by the number of incoming bits received during the predetermined period, and further divides the quotient by the number of reception signals that are compared by the bit comparator, thereby obtaining the error rate of the reception signal.
摘要翻译：一种用于移动无线电通信系统的错误率测量装置，其以简单的硬件快速准确地测量接收信号的误码率。该装置配备有多个接收机，用于从具有彼此间隔开的天线的单个发射源接收信号。位比较器逐位比较接收到的信号，如果检测到位错误，则将错误检测脉冲信号发送到错误率计算器。错误率计算器对位比较器发送的预定周期的错误检测脉冲信号的数量进行计数。错误率计算器然后将该脉冲计数除以在预定时段内接收到的输入位数，并将商除以由位比较器比较的接收信号的数量，从而获得接收信号的错误率。

43. 发明授权

US08452250B2 DC offset compensation method and DC offset compensation device 有权
标题翻译：直流偏移补偿方法和直流偏移补偿装置
公开(公告)号：US08452250B2
公开(公告)日：2013-05-28
申请号：US11819984
申请日：2007-06-29
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Hajime Hamada , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Hajime Hamada , Tokuro Kubo
IPC分类号： H04B1/30
CPC分类号： H04L25/061 , H04L27/364
摘要： A DC offset component that occurs in a quadrature modulation system, and that is contained in a modulated transmit signal, is compensated for with good accuracy. In a DC offset compensation method according to the present invention, a DC offset correction value obtained from the transmit signal is weighted in accordance with the signal level of an input signal which is transmit data input to the quadrature modulation system, and the DC offset component contained in the transmit signal is compensated for by using the thus weighted DC offset correction value.
摘要翻译：发生在正交调制系统中并且包含在调制的发送信号中的DC偏移分量以高精度被补偿。在根据本发明的DC偏移补偿方法中，从发送信号获得的DC偏移校正值根据输入到正交调制系统的发送数据的输入信号的信号电平加权，并且DC偏移分量通过使用这样加权的DC偏移校正值来补偿包含在发送信号中的发送信号。

44. 发明授权

US07983636B2 Amplifier control device 有权
标题翻译：放大器控制装置
公开(公告)号：US07983636B2
公开(公告)日：2011-07-19
申请号：US12642254
申请日：2009-12-18
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
IPC分类号： H01Q11/12 , H04K3/00
CPC分类号： H03F1/0266 , H03F1/0205 , H03F1/0244 , H03F1/32 , H03F3/24
摘要： A bias control signal generation unit detects ON and OFF of a transmission signal input to an amplifier and having a property of a burst according to burst information. The bias control signal generation unit controls a bias voltage to be applied to an amplifier such that an idle current flowing through the amplifier can be flowing in a larger amount in a transmission OFF period, and can return to a normal level in a transmission ON period.
摘要翻译：偏置控制信号生成单元根据突发信息检测输入到放大器的发送信号的接通和关断，并具有突发的性质。偏置控制信号发生单元控制要施加到放大器的偏置电压，使得流过放大器的空闲电流可以在传输关闭时段内以较大的量流动，并且可以在传输开启周期中恢复到正常电平。

45. 发明授权

US07848449B2 Offset compensation device 有权
标题翻译：偏移补偿装置
公开(公告)号：US07848449B2
公开(公告)日：2010-12-07
申请号：US10568334
申请日：2004-03-31
申请人： Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba , Tokuro Kubo
发明人： Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba , Tokuro Kubo
IPC分类号： H04L25/49
CPC分类号： H04L27/364 , H03C3/406 , H04L2027/0016 , H04L2027/0018 , H04L2027/0067 , H04L2027/0069
摘要： In an electronic device having a circuit outputting a vector sum of two quadrature vector signals, an offset compensating device compensates the offset contained in the vector sum. The offset compensating device aims to flexibly adapt to deviation in characteristics and performances and various fluctuations, and to compensate offset stably and accurately. The offset compensating device includes a deviation monitor unit creating a vector signal by A/D-converting the aforementioned vector sum and by quadrature-demodulating it and monitoring the deviation of the DC components superposed on the vector signal, and an adaptive control unit updating the compensation vector determined in advance, based on adaptive algorithm minimizing expectation value of the product of the inner product between an increment vector and the compensation vector, and the latest deviation vector, and adding the compensation vector to an offset vector to be inputted, while being superposed on the input signal, to a circuit.
摘要翻译：在具有输出两个正交矢量信号的向量和的电路的电子设备中，偏移补偿装置补偿矢量和中包含的偏移量。偏移补偿装置旨在灵活适应特性，性能和各种波动的偏差，并且稳定和准确地补偿偏移。偏移补偿装置包括：偏差监视器单元，通过对前述矢量和进行A / D转换，并对其进行正交解调并监视叠加在矢量信号上的直流分量的偏差来产生矢量信号;以及自适应控制单元，基于自适应算法，最小化增量向量与补偿向量之间的内积乘积的最终期望值与最新偏差矢量，并将补偿向量加到要输入的偏移向量的预先确定的补偿向量，同时叠加在输入信号上的电路。

46. 发明授权

US07447484B2 Timing controller and timing control method 有权
标题翻译：定时控制器和时序控制方法
公开(公告)号：US07447484B2
公开(公告)日：2008-11-04
申请号：US11387811
申请日：2006-03-24
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Tokuro Kubo
IPC分类号： H04B1/04
CPC分类号： H03F1/0222
摘要： A timing controller is disclosed that includes: an amplifier part configured to amplify a first input signal in accordance with a control voltage, the first input signal being one of a transmission signal and a signal of a fixed value; a detector part configured to detect envelope information from the output signal of the amplifier part; a controller part configured to determine a delay difference from the transmission signal and the envelope information and transmit a timing control signal based on the delay difference; and a delay corrector part configured to correct the delay of a second input signal in accordance with the timing control signal, the second input signal being one of the transmission signal and a signal of a fixed value. One of the first and second input signals employs the corresponding signal of the fixed value in the case of correcting the delay.
摘要翻译：公开了一种定时控制器，其包括：放大器部件，被配置为根据控制电压放大第一输入信号，所述第一输入信号是传输信号和固定值的信号之一; 检测器部件，被配置为从放大器部分的输出信号检测包络信息; 控制器部件，被配置为确定与发送信号和包络信息的延迟差异，并基于延迟差发送定时控制信号; 以及延迟校正部，被配置为根据定时控制信号校正第二输入信号的延迟，第二输入信号是发送信号和固定值的信号之一。在校正延迟的情况下，第一和第二输入信号之一采用固定值的对应信号。

47. 发明申请

US20070281655A1 DC offset compensation method and DC offset compensation device 有权
标题翻译：直流偏移补偿方法和直流偏移补偿装置
公开(公告)号：US20070281655A1
公开(公告)日：2007-12-06
申请号：US11819984
申请日：2007-06-29
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Hajime Hamada , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Kazuo Nagatani , Hajime Hamada , Tokuro Kubo
IPC分类号： H04B1/10
CPC分类号： H04L25/061 , H04L27/364
摘要： A DC offset component that occurs in a quadrature modulation system, and that is contained in a modulated transmit signal, is compensated for with good accuracy. In a DC offset compensation method according to the present invention, a DC offset correction value obtained from the transmit signal is weighted in accordance with the signal level of an input signal which is transmit data input to the quadrature modulation system, and the DC offset component contained in the transmit signal is compensated for by using the thus weighted DC offset correction value.
摘要翻译：发生在正交调制系统中并且包含在调制的发送信号中的DC偏移分量以高精度被补偿。在根据本发明的DC偏移补偿方法中，从发送信号获得的DC偏移校正值根据输入到正交调制系统的发送数据的输入信号的信号电平加权，并且DC偏移分量通过使用这样加权的DC偏移校正值来补偿包含在发送信号中的发送信号。

48. 发明申请

US20070217543A1 Peak suppression method, peak suppression apparatus and wireless transmission apparatus 有权
标题翻译：峰值抑制方法，峰值抑制装置和无线传输装置
公开(公告)号：US20070217543A1
公开(公告)日：2007-09-20
申请号：US11482618
申请日：2006-07-07
申请人： Hajime Hamada , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba
发明人： Hajime Hamada , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba
IPC分类号： H04L25/03
CPC分类号： H04L27/2624
摘要： The present invention provides a peak suppression method, including a first step for detecting characteristic information of a peak part of a transmission signal; and a second step for changing a suppression method for the peak part based on the characteristic information.
摘要翻译：本发明提供一种峰值抑制方法，包括：检测发送信号的峰值部分的特征信息的第一步骤; 以及基于特征信息改变峰值部分的抑制方法的第二步骤。

49. 发明申请

US20060133524A1 Multicarrier signal transmission apparatus, multicarrier signal receiving apparatus, multicarrier signal transmission method, multicarrier signal receiving method, and communication system 审中-公开
标题翻译：多载波信号发送装置，多载波信号接收装置，多载波信号发送方法，多载波信号接收方法及通信系统
公开(公告)号：US20060133524A1
公开(公告)日：2006-06-22
申请号：US11077909
申请日：2005-03-11
申请人： Hajime Hamada , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba
发明人： Hajime Hamada , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa , Nobukazu Fudaba
IPC分类号： H04K1/10
CPC分类号： H04L27/2614
摘要： A multicarrier signal transmission apparatus able to adjust the balance between the quality of reception and generation of an out-band spurious wave by a simple configuration, comprising a peak detector for detecting a peak part of a transmitted multicarrier signal, a window function generator for generating a window function of an amplitude in accordance with a peak level of a detected peak part, and a peak suppressor for attenuating the peak part in accordance with the value of the generated window function, and a multicarrier signal receiving apparatus, multicarrier signal transmission method, multicarrier signal receiving method, and communication system used with the same.
摘要翻译：一种多载波信号传输装置，其能够通过简单的配置来调整接收质量和产生带外杂散波之间的平衡，包括用于检测发射的多载波信号的峰值部分的峰值检测器，用于产生根据所检测的峰值部分的峰值电平的幅度的窗口函数，以及用于根据所生成的窗口函数的值衰减峰值部分的峰值抑制器，以及多载波信号接收装置，多载波信号发送方法，多载波信号接收方法和通信系统。

50. 发明申请

US20050239419A1 Array-antenna-equipped communication apparatus and method of calibrating array-antenna-equipped communication apparatus 审中-公开
标题翻译：配有阵列天线的通信装置和校准配有阵列天线的通信装置的方法
公开(公告)号：US20050239419A1
公开(公告)日：2005-10-27
申请号：US11166619
申请日：2005-06-24
申请人： Nobukazu Fudaba , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa
发明人： Nobukazu Fudaba , Tokuro Kubo , Kazuo Nagatani , Hiroyoshi Ishikawa
IPC分类号： H01Q21/00 , H04B7/10 , H04B1/02 , H03C7/02 , H04B7/02
CPC分类号： H04B17/21 , H04B17/12 , H04B17/18 , H04B17/19
摘要： In an array-antenna-equipped communication apparatus, a part of a transmission signal after passing through a radio wave transmitter is branched by a directional coupler, combined by a combiner, converted to a baseband signal by a receiver for calibration, analog-converted by an analog-to-digital converter, and input to an adaptive controller as a feedback signal. The adaptive controller calculates a calibration value that minimizes the power of an error signal representing a difference between the feedback signal and a reference signal, which is the transmission signal before passing through the radio wave transmitter, and outputs the calibration value to a corrector for calibration.
摘要翻译：在配有阵列天线的通信装置中，通过无线电波发射机的发送信号的一部分由定向耦合器分支，由组合器组合，由接收机转换为基带信号进行校准，由模数转换器，并作为反馈信号输入到自适应控制器。自适应控制器计算校正值，其使表示反馈信号与参考信号之间的差异的误差信号的功率最小化，该参考信号是通过无线电波发射器之前的传输信号，并将校准值输出到校准器。

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