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1. 发明授权

US06895045B2 Balancing amplitude and phase 失效
公开(公告)号：US06895045B2
公开(公告)日：2005-05-17
申请号：US10122992
申请日：2002-04-15
申请人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
发明人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
IPC分类号： H03C3/02 , H03C5/00 , H04L27/00 , H04L27/01 , H04L27/18 , H04L27/22 , H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L27/0014 , H04L27/22 , H04L2027/0016 , H04L2027/0024
摘要： A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.

2. 发明授权

US08792545B2 Balancing amplitude and phase 有权
标题翻译：平衡振幅和相位
公开(公告)号：US08792545B2
公开(公告)日：2014-07-29
申请号：US12352303
申请日：2009-01-12
申请人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
发明人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L27/0014 , H04L27/22 , H04L2027/0016 , H04L2027/0024
摘要： A system for balancing a signal having I and Q components includes means for cross correlating the I and Q components to produce a cross correlation product; means for adjusting the gain of each I and Q signal component in accordance with said cross correlation product; and means for adding one component with the adjustable gain of the other component to produce a phase-balanced signal.
摘要翻译：用于平衡具有I和Q分量的信号的系统包括用于互相关联I和Q分量以产生互相关乘积的装置; 用于根据所述互相关乘积调整每个I和Q信号分量的增益的装置; 以及用于添加具有另一部件的可调增益的一个分量以产生相位平衡信号的装置。

3. 发明授权

US06377620B1 Balancing amplitude and phase 有权
标题翻译：平衡振幅和相位
公开(公告)号：US06377620B1
公开(公告)日：2002-04-23
申请号：US09233791
申请日：1999-01-19
申请人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
发明人： Fatih M. Özlütürk , Stephen G. Dick , Leonid Kazakevich
IPC分类号： H03H730
CPC分类号： H04L27/0014 , H04L27/22 , H04L2027/0016 , H04L2027/0024
摘要： The present invention balances the amplitude and phase of a received QPSK signal that may have been corrupted during transmission. The system determines the amplitude of the I and Q symbols of a received signal, compares them, and applies a correction to one or both channels to correct for amplitude imbalance. For phase imbalance, the system calculates the cross-correlation of the I and Q symbols which should average to zero. A correction factor is derived from the cross-correlation and applied to both channels, returning the phase cross-correlation to zero. The output from the system is a signal corrected in both amplitude and phase.
摘要翻译：本发明平衡在发送期间可能被破坏的接收的QPSK信号的幅度和相位。系统确定接收信号的I和Q符号的幅度，将其进行比较，并对一个或两个信道进行校正，以校正幅度不平衡。对于相位不平衡，系统计算应平均为零的I和Q符号的互相关。校正因子从互相关导出并应用于两个通道，将相位互相关返回到零。系统的输出是在幅度和相位上均校正的信号。

4. 发明申请

US20120320952A1 RECEIVER FOR PRODUCING PHASE CORRECTED SIGNALS 失效
标题翻译：生产相位校正信号的接收器
公开(公告)号：US20120320952A1
公开(公告)日：2012-12-20
申请号：US13594447
申请日：2012-08-24
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04B1/7115
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： A method for receiving at least one of a plurality of channels in a communication signal includes receiving a spread spectrum communication signal, demodulating the spread spectrum communication signal using a rake receiver and a pseudo-noise pilot signal for a selected channel, despreading the demodulated signal of a selected channel, performing a QPSK hard decision in association with a complex conjugate of the despread signal to produce a correction signal, and mixing the correction signal to a rake receiver output to remove relative phase error without an absolute phase reference, to produce a corrected signal.
摘要翻译：一种用于在通信信号中接收多个信道中的至少一个的方法包括：接收扩展频谱通信信号，使用瑞克接收机对所述扩频通信信号进行解调，以及对所选择的信道解调伪噪声导频信号，解扩解调信号与所述解扩展信号的复共轭相关联地执行QPSK硬判决以产生校正信号，并将所述校正信号混合到瑞克接收机输出以消除相对相位误差而不进行绝对相位参考，以产生校正信号。

5. 发明申请

US20110188546A1 WIRELESS TRANSMIT/RECEIVE UNIT (WTRU) FOR CARRIER OFFSET RECOVERY 有权
标题翻译：无线传输/接收单元（WTRU）用于载波偏移恢复
公开(公告)号：US20110188546A1
公开(公告)日：2011-08-04
申请号：US13086091
申请日：2011-04-13
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04B1/707
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： A wireless transmit/receive unit (WTRU) for carrier offset recovery. An adaptive matched filter produces a filtered signal. A rake receiver provides relative path values of multipath components. A mixer generates channel impulse response estimates. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor determines a symbol value of the despread channel signal. A complex conjugate processor generates a complex conjugate of the symbol value as a correction signal. A phase-locked loop produces a phase correction signal to recover carrier offset.
摘要翻译：用于载波偏移恢复的无线发射/接收单元（WTRU）。自适应匹配滤波器产生滤波信号。耙式接收器提供多径分量的相对路径值。混频器产生信道脉冲响应估计。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器确定解扩频道信号的符号值。复共轭处理器产生符号值的复共轭作为校正信号。锁相环产生相位校正信号以恢复载波偏移。

6. 发明授权

US06498784B1 Cancellation of pilot and traffic signals 有权
标题翻译：取消飞行员和交通信号灯
公开(公告)号：US06498784B1
公开(公告)日：2002-12-24
申请号：US09175174
申请日：1998-10-20
申请人： Fatih M. Özlütürk
发明人： Fatih M. Özlütürk
IPC分类号： H04B320
CPC分类号： H04B1/7103 , H04B1/7097 , H04B1/7107 , H04B1/71075 , H04B2201/70701
摘要： A global pilot and unwanted traffic signal canceler for a spread spectrum communication system receiver that reduces their contributive noise effects. The present invention effectively cancels the global pilot and unwanted, active traffic signals prior to decoding a desired traffic signal at the receiver. The system and method decreases the bit error rate (BER) yielding an increased signal-to-noise ratio.
摘要翻译：用于扩频通信系统接收机的全局导频和不需要的业务信号消除器，减少其贡献噪声影响。本发明在接收机解码期望业务信号之前，有效地消除了全局导频和不需要的有效业务信号。该系统和方法降低了误码率（BER），从而提高了信噪比。

7. 发明授权

US06480530B2 Processing for improved performance and reduced pilot 有权
标题翻译：处理改进性能和减少飞行员
公开(公告)号：US06480530B2
公开(公告)日：2002-11-12
申请号：US10113186
申请日：2002-04-01
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04L2730
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： The present invention is a user equipment (UE), including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
摘要翻译：本发明是一种用户设备（UE），其包括用于在通信信号中接收多个信道中的一个的接收机和方法。自适应匹配滤波器通过使用加权信号产生滤波信号。瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器接收所选信道的解扩频道信号并产生校正信号。锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

8. 发明授权

US06483868B2 Processing for improved performance and reduced pilot 有权
公开(公告)号：US06483868B2
公开(公告)日：2002-11-19
申请号：US10008411
申请日：2001-11-13
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04L2730
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： A digital spread spectrum communication system employing pilot-aided coherent multipath demodulation effects a substantial reduction in global-pilot and assigned-pilot overheads. The system and method uses a QPSK-modulated data signal whereby the modulated data is removed and the recovered carrier is used for channel amplitude and phase estimation. The resulting signal has no data modulation and is used as a pseudo-pilot signal. In conjunction with the pseudo-pilot signal, a multiple-input phase-locked loop is employed further eliminating errors due to carrier-offset by using a plurality of pseudo-pilot signals. A pilot signal is required to resolve absolute phase ambiguity, but at a greatly reduced magnitude.

9. 发明授权

US06366607B1 Processing for improved performance and reduced pilot 失效
标题翻译：处理改进性能和减少飞行员
公开(公告)号：US06366607B1
公开(公告)日：2002-04-02
申请号：US09078417
申请日：1998-05-14
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： H04L2730
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： A digital spread spectrum communication system employing pilot-aided coherent multipath demodulation effects a substantial reduction in global-pilot and assigned-pilot overheads. The system and method uses a QPSK-modulated data signal whereby the modulated data is removed and the recovered carrier is used for channel amplitude and phase estimation. The resulting signal has no data modulation and is used as a pseudo-pilot signal. In conjunction with the pseudo-pilot signal, a multiple-input phase-locked loop is employed further eliminating errors due to carrier-offset by using a plurality of pseudo-pilot signals. A pilot signal is required to resolve absolute phase ambiguity, but at a greatly reduced magnitude.
摘要翻译：采用导频辅助相干多路径解调的数字扩频通信系统实际上降低了全局导频和分配的导频开销。该系统和方法使用QPSK调制的数据信号，由此去除调制数据，并将恢复的载波用于信道幅度和相位估计。所得到的信号没有数据调制，并被用作伪导频信号。结合伪导频信号，还采用多输入锁相环，通过使用多个伪导频信号来消除由载波偏移引起的误差。需要一个导频信号来解决绝对相位模糊度，但幅度大大降低。

10. 发明授权

US06707845B2 Processing for improved performance and reduced pilot 有权
标题翻译：处理改进性能和减少飞行员
公开(公告)号：US06707845B2
公开(公告)日：2004-03-16
申请号：US10357869
申请日：2003-02-03
申请人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
发明人： Fatih M. Özlütürk , David K. Mesecher , Alexander M. Jacques
IPC分类号： A04B1713
CPC分类号： H04B1/7085 , H04B1/30 , H04B1/707 , H04B1/70755 , H04B1/7093 , H04B1/7115 , H04B2201/70701 , H04L25/0212 , H04L27/0014 , H04L2027/0067
摘要： The present invention is a communication system, including a receiver and method for receiving one of a plurality of channels in a communication signal. An adaptive matched filter produces a filtered signal by using a weighting signal. A rake receiver produces a filter weighting signal using a pseudo-noise signal generator. A channel despreader despreads the filtered signal using the pseudo-noise signal generated to produce a despread channel signal of the selected channel. A pilot channel despreader despreads the filtered signal using a pseudo-noise signal generator to produce a despread pilot signal of the pilot channel. A hard decision processor receives the despread channel signal of the selected channel and produces a correction signal. A phase-locked loop utilizes at least the despread pilot signal and produces a phase correction signal which is applied to produce phase-corrected channel signals.
摘要翻译：本发明是一种通信系统，包括用于在通信信号中接收多个信道中的一个的接收机和方法。自适应匹配滤波器通过使用加权信号产生滤波信号。瑞克接收机使用伪噪声信号发生器产生滤波器加权信号。信道去扩展器使用所生成的伪噪声信号来对经滤波的信号进行解扩，以产生所选信道的解扩频道信号。导频信道解扩器使用伪噪声信号发生器对经滤波的信号进行解扩，以产生导频信道的解扩导频信号。硬决策处理器接收所选信道的解扩频道信号并产生校正信号。锁相环至少使用解扩导频信号并产生相位校正信号，该信号被施加以产生相位校正的信道信号。

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