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公开(公告)号：US6097714A
公开(公告)日：2000-08-01
申请号：US872358
申请日：1997-06-10
IPC分类号： H04L27/20 , H04B1/707 , H04B1/7097 , H04J13/00 , H04J13/12 , H04B7/216 , H04B15/00 , H04Q7/28
CPC分类号： H04J13/00 , H04B1/707 , H04J13/0051 , H04B2201/70701 , H04B2201/70706 , H04J13/12
摘要： A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectrum modulated signal. A spread-spectrum modulating unit for each channel includes a phase shifter for shifting, by a predetermined angle channel by channel, the phase of a position vector of the spread-spectrum modulated signal of each channel. As the result of such phase control, the phases of pilot signal portions of the spread-spectrum modulated signals of the respective channels are shifted relative to one another so that the peak values of the code-multiplexed signal can be suppressed.
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公开(公告)号：US6041034A
公开(公告)日：2000-03-21
申请号：US940479
申请日：1997-09-30
CPC分类号： H04J13/102 , H04J13/0025
摘要： Co-channel interference may be prevented even if data having different transmission rates are concurrently multiplied to a same frequency band width with a different spreading factors. A method for generating code division multiple access data from data having different rates by a direct spread spectrum includes the steps of combining an orthogonal code and a reversed orthogonal code obtained by inverting the orthogonal code, for each of orthogonal code sequence structured by an m-sequence thereby to generate a first sequence of orthogonal codes, combing two of the orthogonal code for each of orthogonal code sequences structured by the m-sequence thereby to generate a second sequence of orthogonal codes, combining two of the reversed orthogonal code for each of orthogonal code sequences structured by the m-sequence thereby to generate a third sequence of orthogonal codes, and generating another orthogonal code having twice a code length of the orthogonal code from the first, second and third sequence of orthogonal codes; and multiplying the generated orthogonal code and a different m-sequence, together.
摘要翻译： 即使具有不同传播速率的数据被同时乘以具有不同扩频因子的相同频带宽度，也可以防止同信道干扰。 一种用于通过直接扩展频谱从具有不同速率的数据产生码分多址数据的方法，包括以下步骤：对由正交码构成的正交码序列中的每一个组合正交码和反相正交码， 从而产生正交码的第一序列，对由m序列构成的每个正交码序列组合正交码中的两个，从而产生正交码的第二序列，将正交码中的每一个合成两个正交码 由m序列构成的码序列，从而产生正交码的第三序列，并且从正交码的第一，第二和第三序列生成具有正交码的码长的两倍的另一个正交码; 并将所生成的正交码与不同的m序列相乘。
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53.发明授权Communications device employing spectrum spreading in transmitted bits along a time axis 失效通信设备沿着时间轴在传输比特中采用频谱扩展
公开(公告)号：US6018545A
公开(公告)日：2000-01-25
申请号：US820552
申请日：1997-03-19
IPC分类号： H04B1/707 , H04B1/7073 , H04K1/00
CPC分类号： H04B1/707
摘要： A plurality of chips generated by spectrum spreading from each of the bits constituting transmission information are distributed along the time axis, and transmitted. At the receiving end, the transmission information is recovered while integrating information of the chips distributed along the time axis. In a first aspect of the present invention, the transmission information is repeated multiple times, and then the resulting information is spread by a spreading code to generate the transmission data. In a second aspect of the present invention, the transmission information is first spread by a spreading code and then interleaved to generate the transmission data.
摘要翻译： 多个由光谱从构成发送信息的比特的扩展产生的切屑沿时间轴分散，并且发送。 在接收端，同时整合沿时间轴分布芯片的信息的发送信息被回收。 在本发明的第一个方面中，传输信息被重复多次，然后将所得的信息由扩展码扩展，以生成发送数据。 在本发明的第二方面中，传输信息首先用扩展码扩展，然后被交织以产生传输数据。
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54.发明授权Amplifier having distortion compensation and base station for radio communication using the same 失效具有失真补偿的放大器和使用其的无线电通信基站
公开(公告)号：US5870668A
公开(公告)日：1999-02-09
申请号：US688443
申请日：1996-07-30
IPC分类号： H03D7/16 , H03F1/32 , H04B7/0005
CPC分类号： H03D7/168 , H03F1/3241 , H03F2200/372
摘要： A amplifier having distortion compensation is employed as a power amplifier for amplifying a linear modulated signal or a low noise amplifier for amplifying a linear modulated signal. The amplifier having distortion compenssation includes an amplifier circuit for amplifying an input signal; an error detecting circuit for obtaining an error signal between the input signal to and an output signal from the amplifier circuit; a coefficient generating circuit for generating compensation coefficients to compensate distortion components of characteristics of the amplifier circuit, based on the error signal according to an adaptive type algorithm; a first outputting circuit for outputting a generated compensation coefficient corresponding to the input signal; and a multiplying circuit for multiplying the generated compensation coefficient to the input signal and inputting a multiplied coefficient to the amplifier circuit.
摘要翻译： 使用具有失真补偿的放大器作为用于放大线性调制信号的功率放大器或用于放大线性调制信号的低噪声放大器。 具有失真补偿的放大器包括用于放大输入信号的放大器电路; 用于获得来自放大器电路的输入信号与输出信号之间的误差信号的误差检测电路; 系数产生电路，用于根据自适应型算法产生补偿系数以补偿放大器电路的特性的失真分量; 第一输出电路，用于输出与输入信号对应的产生的补偿系数; 以及乘法电路，用于将所生成的补偿系数与输入信号相乘，并将乘法系数输入到放大器电路。
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公开(公告)号：US09100263B2
公开(公告)日：2015-08-04
申请号：US13420760
申请日：2012-03-15
CPC分类号： H04L27/368 , H03F1/3247 , H03F2201/3233
摘要： A distortion compensation apparatus for performing distortion compensation processing by applying the inverse properties of distortion properties of the power amplifier to a transmission signal to be input to a power amplifier, includes a plurality of distortion compensation coefficient storage units configured to store a plurality of distortion compensation coefficients used for the distortion compensation processing, an offset correction processing unit configured to subject the distortion compensation coefficient stored in each of the plurality of distortion compensation coefficient storage units to offset correction processing, and to generate distortion compensation coefficients in the case that the offset correction processing has not been performed, corresponding to plurality of distortion compensation coefficient storage units, in a pseudo manner and a distortion compensation processing unit configured to subject the transmission signal to the distortion compensation processing based on the distortion compensation coefficients generated in a pseudo manner.
摘要翻译： 一种用于通过将功率放大器的失真特性的逆特性应用于要输入到功率放大器的发送信号来执行失真补偿处理的失真补偿装置，包括：多个失真补偿系数存储单元，被配置为存储多个失真补偿 用于失真补偿处理的系数;偏移校正处理单元，被配置为对存储在多个失真补偿系数存储单元中的每一个中的失真补偿系数进行偏移校正处理，并且在偏移校正的情况下产生失真补偿系数 以伪方式对应于多个失真补偿系数存储单元进行处理，以及失真补偿处理单元，被配置为使发送信号进行失真补偿处理 基于以伪方式生成的失真补偿系数。
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公开(公告)号：US08787487B2
公开(公告)日：2014-07-22
申请号：US13461928
申请日：2012-05-02
CPC分类号： H04L25/49 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/19 , H03F3/24 , H03F2200/336 , H03F2201/3212 , H03F2201/3233 , H04B1/0475 , H04B2001/0425 , H04L25/03343 , H04L27/2614 , H04L27/368
摘要： A distortion compensation device which reduces a distortion of an amplifier which is added to an output signal of the amplifier, the distortion compensation device including: a plurality of distortion compensation coefficient storage circuits which stores a plurality of distortion compensation coefficients and outputs the distortion compensation coefficients according to an amplitude of an input signal of the amplifier, a distortion compensating processing circuit which adds the distortion compensation coefficient output from each of the plurality of distortion compensation coefficient storage circuits to the input signal of the amplifier, and a distortion compensation coefficient updating circuit which performs weighting processing on the distortion compensation coefficient output from each of the plurality of distortion compensation coefficient storage circuits to reduce the distortion compensation coefficient and which calculates an update value of the distortion compensation coefficient by using the distortion compensation coefficient which is subjected to the weighting processing.
摘要翻译： 一种失真补偿装置，其减少了放大器的失真，该放大器被加到放大器的输出信号上，失真补偿装置包括：多个失真补偿系数存储电路，存储多个失真补偿系数，并输出失真补偿系数 根据放大器的输入信号的幅度，将从多个失真补偿系数存储电路输出的失真补偿系数与放大器的输入信号相加的失真补偿处理电路和失真补偿系数更新电路 对从多个失真补偿系数存储电路中的每一个输出的失真补偿系数进行加权处理，以减小失真补偿系数，并计算失真补偿系数的更新值 通过使用经受加权处理的失真补偿系数。
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57.发明授权Distortion compensation device, transmitter, and distortion compensation method 有权失真补偿装置，变送器和失真补偿方法公开(公告)号：US08655289B2
公开(公告)日：2014-02-18
申请号：US13367532
申请日：2012-02-07
IPC分类号： H04B1/04
CPC分类号： H03F1/3247 , H03F1/3241 , H03F1/34 , H03F3/24 , H03F2201/3224 , H03F2201/3233 , H04B2001/0425 , H04B2001/0433
摘要： A distortion compensation device includes a distortion compensator that predistorts an input signal based on delay signals and distortion compensation coefficients corresponding to the respective delay signals obtained by applying different amounts of delay to the input signal, a calculator that calculates an error signal based on the predistorted input signal and an output signal from an amplifier that amplifies the predistorted input signal, a calculator that calculates prospective distortion compensation coefficients for updating the distortion compensation coefficients, based on the error signal, a saturation processor that performs saturation processing for bringing, when the prospective distortion compensation coefficients do not fall into a preset range, the prospective distortion compensation coefficients into the preset range, and a controller that controls the updating of the distortion compensation coefficients based on pieces of coefficient saturation information indicating whether the saturation processing is performed on the prospective distortion compensation coefficients.
摘要翻译： 失真补偿装置包括：失真补偿器，其基于延迟信号预失真输入信号，以及对应于通过对输入信号应用不同量的延迟而获得的各个延迟信号的失真补偿系数;计算器，其基于预失真来计算误差信号 输入信号和来自放大预失真输入信号的放大器的输出信号，计算器，其基于误差信号计算用于更新失真补偿系数的预期失真补偿系数;饱和处理器，执行饱和处理，以便在预期 失真补偿系数不落入预设范围，预期失真补偿系数为预设范围，以及控制器，其基于系数饱和度信息指示来控制失真补偿系数的更新 是否对预期失真补偿系数执行饱和处理。
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58.发明授权Power amplification device, transmitter, and power amplification control method 有权功率放大器，发射器和功率放大控制方法公开(公告)号：US08525592B2
公开(公告)日：2013-09-03
申请号：US13405441
申请日：2012-02-27
IPC分类号： H03F1/26
CPC分类号： H03F3/24 , H03F1/3247 , H03F1/3258 , H03F3/189 , H03F2200/336 , H03F2201/3233
摘要： A power amplifier amplifies a signal. An error signal calculating unit calculates an error signal in accordance with an input signal and an output from the power amplifier. A distortion compensation unit performs predistortion on the input signal by using distortion compensation coefficients that are generated in accordance with a plurality of delay signals obtained by giving different amounts of delay to the input signal and by using an error signal and outputs the input signal subjected to the predistortion to the signal amplifying unit. A tap interval control unit controls the delay intervals of the delay signals that are used for the predistortion performed by the distortion compensation unit in accordance with signal correlation information calculated from the input signal.
摘要翻译： 功率放大器放大信号。 误差信号计算单元根据输入信号和来自功率放大器的输出来计算误差信号。 失真补偿单元通过使用根据通过对输入信号赋予不同量的延迟而获得的多个延迟信号而产生的失真补偿系数，并且通过使用误差信号，并且输出经受 对信号放大单元的预失真。 抽头间隔控制单元根据从输入信号计算的信号相关信息来控制用于由失真补偿单元执行的预失真的延迟信号的延迟间隔。
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公开(公告)号：US08433262B2
公开(公告)日：2013-04-30
申请号：US12850998
申请日：2010-08-05
CPC分类号： H03G3/3036 , H04B2001/0416
摘要： A disclosed transmission device includes a voltage control signal generating unit configured to generate a first voltage control signal from a transmission signal, an amplifier configured to amplify the transmission signal in response to the first voltage control signal, a first timing adjusting unit configured to adjust a control timing for the first voltage control signal, and a control timing setting unit configured to set the control timing adjusted by the first timing adjusting unit based on the output signal from the amplifier and the transmission signal.
摘要翻译： 所公开的发送装置包括：电压控制信号生成部，被配置为从发送信号生成第一电压控制信号，被配置为响应于第一电压控制信号放大发送信号的放大器;第一定时调整部， 第一电压控制信号的控制定时，以及控制定时设定单元，被配置为基于来自放大器的输出信号和发送信号来设定由第一定时调整单元调整的控制定时。
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60.发明申请DISTORTION COMPENSATION DEVICE, DISTORTION COMPENSATION METHOD, AND RADIO TRANSMITTER 有权失真补偿装置，失真补偿方法和无线电发射机公开(公告)号：US20130040587A1
公开(公告)日：2013-02-14
申请号：US13558620
申请日：2012-07-26
CPC分类号： H03F1/3258 , H03F1/3241 , H03F1/3247 , H03F3/189 , H03F3/245 , H03F2200/105 , H03F2201/3233 , H04B1/0475 , H04B2001/0425
摘要： A distortion compensation device includes: a frequency-characteristic adding unit configured to add a frequency characteristic to an error signal to generate an added error signal, the error signal being a difference between an input signal input to an amplifier and an output signal output from the amplifier; a distortion-compensation-coefficient updating unit configured to update a distortion compensation coefficient for compensating for a distortion characteristic of the amplifier based on the added error signal; and a distortion compensation unit configured to perform distortion compensation on the input signal using the updated distortion compensation coefficient.
摘要翻译： 失真补偿装置包括：频率特性相加单元，被配置为向误差信号添加频率特性以产生相加的误差信号，所述误差信号是输入到放大器的输入信号与从所述输出信号输出的输出信号之间的差 放大器 失真补偿系数更新单元，被配置为基于所添加的误差信号来更新用于补偿所述放大器的失真特性的失真补偿系数; 以及失真补偿单元，被配置为使用更新的失真补偿系数对输入信号执行失真补偿。
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