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公开(公告)号：US07756216B2
公开(公告)日：2010-07-13
申请号：US11443072
申请日：2006-05-31
IPC分类号： H04L25/03
CPC分类号： H04L27/2624 , H03G7/00 , H03G11/00
摘要： As in a conventional technology, a hard clipping process and a filtering process are performed on a transmission signal. An original transmission signal is subtracted from a signal on which the processes have been performed, and an inverse sign signal to the suppressed signal is retrieved. By giving a gain to the signal, and adding up to the original transmission signal, a peak voltage is suppressed. The gain can be a ratio of a difference signal between a hard clipped signal and an original transmission signal to a signal of suppression of a filtered signal from the original transmission signal, or a value determined by a simulation depending on the cutoff frequency of a low pass filter used in the filtering process.
摘要翻译： 像传统技术一样，对发送信号执行硬削波处理和滤波处理。 从已经执行了处理的信号中减去原始发送信号，并且检索到抑制信号的逆信号。 通过给信号增益，并加上原始的传输信号，抑制峰值电压。 增益可以是硬削波信号和原始发送信号之间的差分信号与来自原始发送信号的滤波信号的抑制信号的比率，或者通过根据低频的截止频率的模拟确定的值 过滤器用于过滤过程。
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公开(公告)号：US07447485B2
公开(公告)日：2008-11-04
申请号：US11367379
申请日：2006-03-06
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：US20080013646A1
公开(公告)日：2008-01-17
申请号：US11822946
申请日：2007-07-11
IPC分类号： H04L25/49
CPC分类号： H04B1/0475
摘要： A peak suppression threshold value control unit receives an input of quality requirement information, such as a modulation system and coding ratio, from a baseband signal generation unit, determines a threshold value of a peak suppression unit based on the quality requirement information and outputs the threshold value to a peak suppression unit. The peak suppression unit applies a peak suppression control to a baseband signal input from a baseband signal generation unit based on the threshold value and outputs a signal (i.e., a peak suppression signal) applied by the peak suppression process.
摘要翻译： 峰值抑制阈值控制单元从基带信号生成单元接收诸如调制系统和编码率的质量要求信息的输入，基于质量要求信息确定峰值抑制单元的阈值，并输出阈值 值到峰值抑制单元。 峰值抑制单元基于阈值对从基带信号生成单元输入的基带信号进行峰值抑制控制，并输出通过峰值抑制处理施加的信号（即，峰值抑制信号）。
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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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公开(公告)号：US20070281655A1
公开(公告)日：2007-12-06
申请号：US11819984
申请日：2007-06-29
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。
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68.发明申请Peak suppression method, peak suppression apparatus and wireless transmission apparatus 有权峰值抑制方法，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
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。
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69.发明申请Multicarrier signal transmission apparatus, multicarrier signal receiving apparatus, multicarrier signal transmission method, multicarrier signal receiving method, and communication system 审中-公开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
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。
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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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