公开(公告)号：US07599452B2

公开(公告)日：2009-10-06

申请号：US10534735

申请日：2002-11-27

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04L27/06

CPC分类号： H04B1/71057 ,  H04L25/03178 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0042 ,  H04L2027/0046 ,  H04L2027/0067 ,  H04L2027/0085

摘要： A method and system of improving sensitivity in the demodulation of a received signal over an arbitrary measurement time epoch, the method comprising the steps of: correlating the received signal in a coherent fashion (80); and utilizing a Viterbi phase state keying trellis demodulation with a variable resolution of phase states over 360° to demodulate the radio frequency phase trajectory of the signal throughout the measurement time epoch (70); and the system comprising a receiver for receiving a direct sequence spread spectrum signal, the receiver comprising: an antenna (10) for receiving the direct sequence spread spectrum signal; a downconverter (40) for downconverting the received signal, producing a downconverted signal; an analog to digital converter (60) to convert the downconverted signal to a digital signal; a despreader (80) for despreading and coherently correlating the digital signal to a known signal, creating a despread signal; and a processor (70) for applying a Viterbi algorithm to the despread signal.

摘要翻译： 一种改善在任意测量时间周期上解调接收信号的灵敏度的方法和系统，该方法包括以下步骤：以一致的方式对所接收的信号进行相关（80）; 并利用具有超过360°的相位状态的可变分辨率的维特比相位状态键控网格解调来解调整个测量时间周期（70）中的信号的射频相位轨迹; 并且所述系统包括用于接收直接序列扩频信号的接收机，所述接收机包括：用于接收直接序列扩频信号的天线（10）; 下变频器（40），用于下变频接收的信号，产生下变频信号; 模数转换器（60），用于将下变频信号转换成数字信号; 解扩器（80），用于将数字信号与已知信号进行解扩和相干相关，产生解扩信号; 以及用于将Viterbi算法应用于去扩展信号的处理器（70）。

公开(公告)号：US07493109B2

公开(公告)日：2009-02-17

申请号：US10999940

申请日：2004-12-01

申请人： Arun Munje ,  Ahmed Farhad ,  Stewart Charles Morris ,  Jorgen S. Nielsen ,  Peiwei Wang

发明人： Arun Munje ,  Ahmed Farhad ,  Stewart Charles Morris ,  Jorgen S. Nielsen ,  Peiwei Wang

IPC分类号： H04Q7/20

CPC分类号： G06F1/30 ,  H02J7/0022 ,  H02J7/0063 ,  H04W52/0261 ,  Y02D70/142 ,  Y02D70/144

摘要： A method and system of enabling auxiliary functions in a mobile device operable in a wireless network. A first data processor is configured to be operable with a mobile device application, and a second data processor is required for operation with the wireless network. An auxiliary function is configured to interface only with one of the processors. A data communication channel provided between the processors conveys data received by or sent from the mobile device through the wireless network. A message sent by one of the processors to the other through the data communication channel to enable the auxiliary function of the mobile device for the processor with which the auxiliary function is not interfaced.

摘要翻译： 一种启用在无线网络中可操作的移动设备中的辅助功能的方法和系统。 第一数据处理器被配置为与移动设备应用可操作，并且需要第二数据处理器来与无线网络一起操作。 辅助功能被配置为仅与其中一个处理器进行接口。 提供在处理器之间的数据通信信道传送通过无线网络从移动设备接收或发送的数据。 通过数据通信信道将一个处理器发送给另一个处理器的消息，以使能辅助功能未被接口的处理器的移动设备的辅助功能。

公开(公告)号：US06987954B2

公开(公告)日：2006-01-17

申请号：US10145930

申请日：2002-05-15

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/02 ,  H04K1/02

CPC分类号： H03C3/40 ,  H04B1/0475 ,  H04B1/30

摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures as least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.

公开(公告)号：US08526896B2

公开(公告)日：2013-09-03

申请号：US13491945

申请日：2012-06-08

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/04

CPC分类号： H03C3/40 ,  H04B1/0475 ,  H04B1/30

摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures as least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.

公开(公告)号：US20100233974A1

公开(公告)日：2010-09-16

申请号：US12785607

申请日：2010-05-24

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/04

CPC分类号： H03C3/40 ,  H04B1/0475 ,  H04B1/30

摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures at least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.

摘要翻译： 用于直接转换发射机的反馈补偿检测器包括基带处理器，直接上变频器，天线以及损伤检测和补偿反馈电路。 基带处理器产生同相（I）基带信号和正交相位（Q）基带信号。 直接上变频器耦合到基带处理器，并且将I和Q基带信号与RF载波信号组合以产生RF输出信号。 天线耦合到直接上变频器，并发射RF输出信号。 损伤检测和补偿反馈电路耦合到RF输出信号和I和Q基带信号。 损伤检测和补偿反馈电路对RF输出信号进行下变频以产生中频（IF）信号，测量IF信号中的至少一个信号损害，并且预失真I和Q基带信号以补偿所测量的 信号障碍。

公开(公告)号：US06985518B2

公开(公告)日：2006-01-10

申请号：US10017158

申请日：2001-12-14

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/707 ,  H04B7/02

CPC分类号： H04B1/7115 ,  H04B1/7093 ,  H04B2201/709727

摘要： An adaptive generalized matched filter (AGMF) rake receiver system includes a rake receiver and an AGMF weight determination module. The rake receiver is coupled to a spread spectrum input signal and applies a vector of weight signals to the spread spectrum input signal to compensate for dependant noise and generate a decision variable. The AGMF weight determination module monitors the decision variable and generates the vector of weight signals, wherein optimal values for the vector of weight signals are calculated by the AGMF weight determination module by varying the vector of weight signals until the signal to noise ratio of the decision variable reaches a peak value

公开(公告)号：US08457255B2

公开(公告)日：2013-06-04

申请号：US12553285

申请日：2009-09-03

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04L27/06

CPC分类号： H04B1/71057 ,  H04L25/03178 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0042 ,  H04L2027/0046 ,  H04L2027/0067 ,  H04L2027/0085

摘要： A method of improving sensitivity in the demodulation of a received signal by a receiver over an arbitrary measurement time epoch, said method comprising the steps of correlating said received signal with a local replica of pseudo noise code in a coherent fashion creating a correlation signal and utilizing a Viterbi phase state keying trellis demodulation with a variable resolution of phase states over 0 to 360° to demodulate the radio frequency phase trajectory of said correlation signal throughout the measurement time epoch for improving sensitivity in the demodulation of a received signal.

摘要翻译： 一种提高接收机在任意测量时间周期上解调接收信号的灵敏度的方法，所述方法包括以下步骤：将所述接收信号与相干方式的伪噪声码的局部副本相关，产生相关信号并利用 在0到360°的相位状态的可变分辨率的维特比相位状态键控网格解调，以在整个测量时间周期解调所述相关信号的射频相位轨迹，以改善接收信号的解调中的灵敏度。

公开(公告)号：US08219044B2

公开(公告)日：2012-07-10

申请号：US12785607

申请日：2010-05-24

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/04

CPC分类号： H03C3/40 ,  H04B1/0475 ,  H04B1/30

摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures at least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.

摘要翻译： 用于直接转换发射机的反馈补偿检测器包括基带处理器，直接上变频器，天线以及损伤检测和补偿反馈电路。 基带处理器产生同相（I）基带信号和正交相位（Q）基带信号。 直接上变频器耦合到基带处理器，并且将I和Q基带信号与RF载波信号组合以产生RF输出信号。 天线耦合到直接上变频器，并发射RF输出信号。 损伤检测和补偿反馈电路耦合到RF输出信号和I和Q基带信号。 损伤检测和补偿反馈电路对RF输出信号进行降频转换以产生中频（IF）信号，测量IF信号中的至少一个信号损害，并且预失真I和Q基带信号以补偿所测量的 信号障碍。

公开(公告)号：US07242709B2

公开(公告)日：2007-07-10

申请号：US11285250

申请日：2005-11-22

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： H04B1/00

CPC分类号： H04B1/7115 ,  H04B1/7093 ,  H04B2201/709727

摘要： An adaptive generalized matched filter (AGMF) rake receiver system includes a rake receiver and an AGMF weight determination module. The rake receiver is coupled to a spread spectrum input signal and applies a vector of weight signals to the spread spectrum input signal to compensate for dependant noise and generate a decision variable. The AGMF weight determination module monitors the decision variable and generates the vector of weight signals, wherein optimal values for the vector of weight signals are calculated by the AGMF weight determination module by varying the vector of weight signals until the signal to noise ratio of the decision variable reaches a peak value.

摘要翻译： 自适应广义匹配滤波器（AGMF）耙式接收机系统包括耙式接收机和AGMF权重确定模块。 瑞克接收机耦合到扩展频谱输入信号，并将加权信号矢量施加到扩展频谱输入信号以补偿相关噪声并产生决定变量。 AGMF加权确定模块监视判定变量并产生加权信号的向量，其中由权重信号权重确定模块通过改变权重信号的向量来计算权重信号的向量的最佳值，直到判决的信噪比 变量达到峰值。

公开(公告)号：US20120253736A1

公开(公告)日：2012-10-04

申请号：US13491945

申请日：2012-06-08

申请人： Jorgen S. Nielsen

发明人： Jorgen S. Nielsen

IPC分类号： G06F15/00

CPC分类号： H03C3/40 ,  H04B1/0475 ,  H04B1/30

摘要： A feedback compensation detector for a direct conversion transmitter includes a baseband processor, a direct up-converter, an antenna, and an impairment detection and compensation feedback circuit. The baseband processor generates an in-phase (I) baseband signal and a quadrature-phase (Q) baseband signal. The direct up-converter is coupled to the baseband processor, and combines the I and Q baseband signals with an RF carrier signal to generate an RF output signal. The antenna is coupled to the direct up-converter, and transmits the RF output signal. The impairment detection and compensation feedback circuit is coupled to the RF output signal and the I and Q baseband signals. The impairment detection and compensation feedback circuit down-converts the RF output signal to generate an intermediate frequency (IF) signal, measures as least one signal impairment in the IF signal, and pre-distorts the I and Q baseband signals to compensate for the measured signal impairment.

摘要翻译： 用于直接转换发射机的反馈补偿检测器包括基带处理器，直接上变频器，天线以及损伤检测和补偿反馈电路。 基带处理器产生同相（I）基带信号和正交相位（Q）基带信号。 直接上变频器耦合到基带处理器，并且将I和Q基带信号与RF载波信号组合以产生RF输出信号。 天线耦合到直接上变频器，并发射RF输出信号。 损伤检测和补偿反馈电路耦合到RF输出信号和I和Q基带信号。 损伤检测和补偿反馈电路对RF输出信号进行降频转换以产生中频（IF）信号，测量IF信号中的至少一个信号损害，并且预失真I和Q基带信号以补偿所测量的 信号障碍。