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公开(公告)号：US20050238114A1
公开(公告)日：2005-10-27
申请号：US10945316
申请日：2004-09-20
CPC分类号： H04L27/0014 , H03C2200/0058 , H03C2200/0079 , H04L27/364 , H04L2027/0016 , H04L2027/0018
摘要： A disclosed quadrature modulation system inputs an inphase signal component and an orthogonal signal component, and outputs an output signal that is quadrature modulated by a quadrature modulator. The quadrature modulation system calculates a first cumulative total based on the inphase signal component input into the quadrature modulator and an inphase signal component of a feedback signal obtained from the output signal. The quadrature modulation system calculates a second cumulative total based on the orthogonal signal component input into the quadrature modulator and an orthogonal signal component of the feedback signal. Based on the first and the second cumulative totals, a time difference between the inphase signal component and the orthogonal signal component is determined. The inphase signal component and the orthogonal signal component to be provided to the quadrature modulator are adjusted based on the time difference such that the time difference is compensated for.
摘要翻译： 所公开的正交调制系统输入同相信号分量和正交信号分量，并输出由正交调制器正交调制的输出信号。 正交调制系统基于输入到正交调制器的同相信号分量和从输出信号获得的反馈信号的同相信号分量来计算第一累积总数。 正交调制系统基于输入到正交调制器的正交信号分量和反馈信号的正交信号分量来计算第二累积总数。 基于第一和第二累积总数，确定同相信号分量和正交信号分量之间的时间差。 基于时间差来调整要提供给正交调制器的同相信号分量和正交信号分量，以便补偿时间差。
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公开(公告)号：US20050219118A1
公开(公告)日：2005-10-06
申请号：US10920994
申请日：2004-08-18
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所述主信号的所述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。
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公开(公告)号：US07804914B2
公开(公告)日：2010-09-28
申请号：US12076825
申请日：2008-03-24
CPC分类号： H04B1/707 , H04B2201/70706 , H04L5/0021 , H04L27/2624
摘要： A radio transmission apparatus executing peak suppression processing to an input signal in at least two stages, includes a first peak detector detecting a first peak, a maximum peak among peaks exceeding a first threshold, for a plurality of envelopes included in a predetermined input signal section; a second peak detector detecting a second peak exceeding a second threshold, on the basis of each input signal envelope; a first peak suppression unit suppressing the predetermined input signal section to the limit of a first level based on the first peak; a modulation signal generation unit generating a modulated signal modulated from the input signal suppressed by the first peak suppression unit; and a second peak suppression unit suppressing the second peak to the limit of a second level by each modulated signal envelope based on the first level and the second peak.
摘要翻译： 对至少两级对输入信号执行峰值抑制处理的无线发送装置包括检测包括在预定输入信号部分中的多个信封的第一峰值，检测超过第一阈值的峰值中的最大峰值的第一峰值检测器 ; 基于每个输入信号包络检测第二峰值检测器，检测超过第二阈值的第二峰值; 第一峰值抑制单元，基于第一峰值将预定输入信号部分抑制到第一电平的极限; 调制信号生成单元，生成由所述第一峰值抑制单元抑制的输入信号调制的调制信号; 以及第二峰值抑制单元，其基于第一电平和第二峰值，通过每个调制信号包络将第二峰值抑制到第二电平的极限。
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公开(公告)号：US07664473B2
公开(公告)日：2010-02-16
申请号：US11589898
申请日：2006-10-31
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
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 。
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公开(公告)号：US20080043869A1
公开(公告)日：2008-02-21
申请号：US11878588
申请日：2007-07-25
IPC分类号： H04K1/10
CPC分类号： H04L27/2614 , H03F1/32 , H03F3/19 , H04B1/0475 , H04L27/2623
摘要： In a configuration where systems C and D having different reception quality requirements are present, a peak suppressor generates a replica of a signal from system C combined together with a signal from system D before peak suppression. Based on the replica, system specific peak suppressing units respectively perform peak suppression on signals of each system according to the respective reception quality requirements of each system. A combining unit combines the peak-suppressed signals of each system. Hence, peak suppression on signals from systems requiring different reception qualities is performed at an appropriate degree according to each system.
摘要翻译： 在存在具有不同接收质量要求的系统C和D的配置中，峰值抑制器在峰值抑制之前产生与系统D的信号组合的来自系统C的信号的副本。 基于复制品，系统特定的峰值抑制单元根据每个系统的各自的接收质量要求分别对每个系统的信号进行峰值抑制。 组合单元组合每个系统的峰值抑制信号。 因此，根据每个系统，在适当的程度上执行需要不同接收质量的系统的信号的峰值抑制。
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公开(公告)号：US20070159242A1
公开(公告)日：2007-07-12
申请号：US11429355
申请日：2006-05-05
CPC分类号： H03C5/00
摘要： A timing adjusting method detects a phase error between a main signal path from which a transmitting signal is obtained and a control signal path from which a voltage control signal is obtained, based on a to-be-amplified signal that is to be amplified and represents an amplitude or a power of the transmitting signal prior to amplification and a feedback signal that represents an amplitude or a power of the transmitting signal after the amplification, adjusts an amount of delay of at least one of the main signal path and the control signal path so as to mutually cancel the phase error, and amplifies the transmitting signal from the main signal path depending on the voltage control signal from the control signal path. The detecting the phase error may include detecting polarity transition points of a slope of a waveform of the to-be-amplified signal or the feedback signal, and measuring the phase error using the detected polarity transition points.
摘要翻译： 代表定时调整方法，根据要放大的被放大信号，检测获得发送信号的主信号路径与获得电压控制信号的控制信号路径之间的相位误差， 在放大之前的发送信号的幅度或功率以及表示放大后的发送信号的幅度或功率的反馈信号，调整主信号路径和控制信号路径中的至少一个的延迟量 以便相互抵消相位误差，并且根据来自控制信号路径的电压控制信号放大来自主信号路径的发送信号。 检测相位误差可以包括检测被放大信号或反馈信号的波形的斜率的极性转变点，以及使用检测到的极性转变点来测量相位误差。
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公开(公告)号：US20070146068A1
公开(公告)日：2007-06-28
申请号：US11367379
申请日：2006-03-06
IPC分类号： H03G3/20
CPC分类号： H03F1/0222 , H03F1/025 , H03F2200/102 , H03F2200/504 , H03F2200/511
摘要： A device is disclosed that includes an amplification part for a linear transmitter, the amplification part being configured to amplify a transmission signal in accordance with a supply voltage control signal; a generation part configured to generate a power supply signal showing the level of the transmission signal; and a control part configured to output the supply voltage control signal based on the power supply signal. The control part includes a storage part configured to store a series of values of the power supply signal belonging to a time range including a certain point of time; and an output part configured to output a maximum one of a predetermined number of values of the series of values of the power supply signal as the supply voltage control signal at the certain point of time.
摘要翻译： 公开了一种包括用于线性发送器的放大部件的装置，所述放大部件被配置为根据电源电压控制信号放大发送信号; 生成部，被配置为生成表示所述发送信号的电平的电源信号; 以及控制部，被配置为基于所述电源信号输出所述电源电压控制信号。 控制部包括：存储部，被配置为存储属于包括某个时间点的时间范围的电源信号的一系列值; 以及输出部，其被配置为在所述特定时间点输出所述电源信号的所述一系列值的预定数量的值中的最大值作为所述电源电压控制信号。
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公开(公告)号：US08452250B2
公开(公告)日：2013-05-28
申请号：US11819984
申请日：2007-06-29
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。
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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
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 。
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公开(公告)号：US07447484B2
公开(公告)日：2008-11-04
申请号：US11387811
申请日：2006-03-24
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。
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