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31. 发明授权

US06963732B2 Subsampling communication receiver architecture with relaxed IFA readout timing 有权
标题翻译：采用宽松的IFA读出时序对通信接收机架构进行采样
公开(公告)号：US06963732B2
公开(公告)日：2005-11-08
申请号：US10132436
申请日：2002-04-25
申请人： Khurram Muhammad , Dirk Leipold
发明人： Khurram Muhammad , Dirk Leipold
IPC分类号： H03H15/00 , H03H19/00 , H04B1/28 , H04B1/707 , H04L27/24 , H04B1/00
CPC分类号： H03H15/00 , H03H19/004 , H04B1/0003 , H04B1/0025 , H04B1/28 , H04L27/24
摘要： A first periodic voltage waveform (20) is downconverted into a second periodic voltage waveform (35, 36). A plurality of temporally distinct samples (SA1, SA2, . . . ) respectively indicative of areas under corresponding fractional-cycles of the first voltage waveform are obtained. The samples are combined to produce the second voltage waveform, and are also manipulated to implement a filtering operation such that the second voltage waveform represents a downconverted, filtered version of the first voltage waveform. The second waveform is driven by an amplifier stage (25), and the second waveform can be advantageously constructed so as to permit the amplifier stage to perform internal resets, offset corrections and other ancillary amplifier stage adjustments without losing information in the first waveform.
摘要翻译：第一周期性电压波形（20）被下变频成第二周期性电压波形（35,36）。获得分别表示第一电压波形的相应分数周期下的面积的多个时间上不同的样本（SA 1，SA 2 ...）。将样本组合以产生第二电压波形，并且还被操纵以实现滤波操作，使得第二电压波形表示第一电压波形的下变换的滤波版本。第二波形由放大器级（25）驱动，并且第二波形可以有利地构造成允许放大器级执行内部复位，偏移校正和其它辅助放大器级调整，而不会丢失第一波形中的信息。

32. 发明申请

US20050212606A1 Wireless communications device having type-II all-digital phase-locked loop (PLL) 有权
标题翻译：具有II型全数字锁相环（PLL）的无线通信设备
公开(公告)号：US20050212606A1
公开(公告)日：2005-09-29
申请号：US11122670
申请日：2005-05-04
申请人： Robert Staszewski , Dirk Leipold , Khurram Muhammad
发明人： Robert Staszewski , Dirk Leipold , Khurram Muhammad
IPC分类号： H03F1/02 , H03F1/32 , H03L7/093 , H03L7/099 , H03L7/107 , H03L7/00
CPC分类号： H03L7/1075 , H03F1/0211 , H03F1/3282 , H03L7/093 , H03L7/0991 , H03L7/107 , H03L2207/50
摘要： System and method for providing type-II (and higher order) phase-locked loops (PLLs) with a fast signal acquisition mode. A preferred embodiment comprises a wireless communication device having a loop filter with a proportional loop gain path (proportional loop gain circuit 1115) and an integral loop gain block (integral loop gain block 1120). The proportional loop gain path is used during signal acquisition to provide large loop bandwidth, hence fast signal acquisition of a desired signal. Then, during the PLL's signal tracking phase, the integral loop gain block is enabled and its output is combined with output from the proportional loop gain path to provide higher order filtering of the desired signal. An offset that may be present due to the use of the proportional loop gain path can be measured and subtracted to help improve signal tracking settling times.
摘要翻译：用于提供具有快速信号采集模式的II型（和更高阶）锁相环（PLL）的系统和方法。优选实施例包括具有带有比例环路增益路径（比例环路增益电路1115）和积分环路增益块（积分环路增益块1120）的环路滤波器的无线通信设备。在信号采集期间使用比例环路增益路径来提供较大的环路带宽，从而快速获取所需信号的信号。然后，在PLL的信号跟踪阶段期间，使用积分环路增益模块，并将其输出与比例环路增益路径的输出相结合，以提供所需信号的高阶滤波。可以测量和减去由于使用比例环路增益路径而可能存在的偏移量，以帮助改善信号跟踪稳定时间。

33. 发明申请

US20050130618A1 Sampling mixer with asynchronous clock and signal domains 有权
标题翻译：具有异步时钟和信号域的采样混频器
公开(公告)号：US20050130618A1
公开(公告)日：2005-06-16
申请号：US11028995
申请日：2005-01-03
申请人： Robert Staszewski , Khurram Muhammad , Yo-Chuol Ho , Dirk Leipold
发明人： Robert Staszewski , Khurram Muhammad , Yo-Chuol Ho , Dirk Leipold
IPC分类号： H03D7/12 , H04B1/10 , H04B1/06 , H04B7/00 , H04L7/00
CPC分类号： H03D7/125 , H04B1/1036
摘要： A mixer 1100 with a plurality of signal paths typically requires separate clock generating hardware for each signal path. However, the redundancy of having multiple clock generating hardware significantly increases power consumption and integrated circuit area when the mixer 1100 is integrated into silicon. A method and apparatus 1125 containing a circuit for generating a set of clock signals that can be shared by the different signal paths is presented. Advantage is taken of the significant capacitance difference between different sampling capacitors in the mixer and the superposition property.
摘要翻译：具有多个信号路径的混频器1100通常需要用于每个信号路径的单独的时钟产生硬件。然而，当混合器1100集成到硅中时，具有多个时钟产生硬件的冗余显着地增加了功耗和集成电路面积。提出了一种包含用于生成可由不同信号路径共享的一组时钟信号的电路的方法和装置1125。利用混频器中不同采样电容器之间的显着电容差和叠加特性。

34. 发明申请

US20100167655A1 RF TRANSMISSION LEAKAGE MITIGATOR, METHOD OF MITIGATING AN RF TRANSMISSION LEAKAGE AND CDMA TRANCEIVER EMPLOYING THE SAME 有权
标题翻译： RF传输泄漏减轻器，减少RF传输泄漏的方法和使用其的CDMA检测器
公开(公告)号：US20100167655A1
公开(公告)日：2010-07-01
申请号：US12721930
申请日：2010-03-11
申请人： Khurram Muhammad , Dirk Leipold
发明人： Khurram Muhammad , Dirk Leipold
IPC分类号： H04B1/00
CPC分类号： H03C5/00 , H04B1/525 , H04B1/707
摘要： The present invention provides an RF transmission leakage mitigator for use with a full-duplex, wireless transceiver. In one embodiment, the RF transmission leakage mitigator includes an inversion generator configured to provide an RF transmission inversion signal of an interfering transceiver RF transmission to a receiving portion of the transceiver thereby creating a residual leakage signal. Additionally, the RF transmission leakage mitigator also includes a residual processor coupled to the inversion generator and configured to adjust the RF transmission inversion signal of the interfering transceiver RF transmission based on reducing the residual leakage signal to a specified level.
摘要翻译：本发明提供了一种与全双工无线收发器一起使用的RF传输泄漏缓解器。在一个实施例中，RF传输泄漏减轻器包括反相发生器，其被配置为将干扰收发器RF传输的RF发射反转信号提供给收发器的接收部分，从而产生残余泄漏信号。此外，RF传输泄漏缓解器还包括耦合到反向发生器并被配置为基于将剩余泄漏信号减小到指定电平来调整干扰收发器RF传输的RF发射反转信号的残余处理器。

35. 发明授权

US07706755B2 Digital, down-converted RF residual leakage signal mitigating RF residual leakage 有权
标题翻译：数字，降频转换的RF残留泄漏信号可减轻RF残留泄漏
公开(公告)号：US07706755B2
公开(公告)日：2010-04-27
申请号：US11270121
申请日：2005-11-09
申请人： Khurram Muhammad , Dirk Leipold
发明人： Khurram Muhammad , Dirk Leipold
IPC分类号： H04B1/40
CPC分类号： H03C5/00 , H04B1/525 , H04B1/707
摘要： The present invention provides an RF transmission leakage mitigator for use with a full-duplex, wireless transceiver. In one embodiment, the RF transmission leakage mitigator includes an inversion generator configured to provide an RF transmission inversion signal of an interfering transceiver RF transmission to a receiving portion of the transceiver thereby creating a residual leakage signal. Additionally, the RF transmission leakage mitigator also includes a residual processor coupled to the inversion generator and configured to adjust the RF transmission inversion signal of the interfering transceiver RF transmission based on reducing the residual leakage signal to a specified level.
摘要翻译：本发明提供了一种与全双工无线收发器一起使用的RF传输泄漏缓解器。在一个实施例中，RF传输泄漏减轻器包括反相发生器，其被配置为将干扰收发器RF传输的RF发射反转信号提供给收发器的接收部分，从而产生残余泄漏信号。此外，RF传输泄漏缓解器还包括耦合到反向发生器并被配置为基于将剩余泄漏信号减小到指定电平来调整干扰收发器RF传输的RF发射反转信号的残余处理器。

36. 发明申请

US20090196384A1 Direct Radio Frequency (RF) Sampling With Recursive Filtering Method 审中-公开
标题翻译：直接射频（RF）采样递归滤波方法
公开(公告)号：US20090196384A1
公开(公告)日：2009-08-06
申请号：US12334268
申请日：2008-12-12
申请人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
发明人： Robert B. Staszewski , Khurram Muhammad , Kenneth J. Maggio , Dirk Leipold
IPC分类号： H03D1/04
CPC分类号： H03D7/125 , H04B1/1036
摘要： A radio receiver 2000 with a sampling mixer 1100 for creating a discrete-time sample stream by directly sampling an RF current with history and rotating capacitors 1111 and 1112, wherein the accumulated charge on the rotating capacitors is read-out to produce a sample. The mixer provides immunity to noise glitches by predicting the occurrence of the glitch (or detecting a significant difference between observed and predicted samples) and creating corrected samples for the corrupted samples. These corrected samples can be created with special circuitry 1933 (digital) or in the mixer 1100 (analog).
摘要翻译：具有采样混合器1100的无线电接收机2000，用于通过用历史和旋转电容器1111和1112直接采样RF电流来产生离散时间采样流，其中读出旋转电容器上的累积电荷以产生样本。混合器通过预测毛刺的发生（或检测观察到的和预测的样品之间的显着差异）并为损坏的样品产生校正的样品来提供对噪声毛刺的免疫。这些校正样本可以用专用电路1933（数字）或混合器1100（模拟）来创建。

37. 发明授权

US07532874B2 Offset balancer, method of balancing an offset and a wireless receiver employing the balancer and the method 有权
标题翻译：偏移平衡器，平衡偏移的方法和采用平衡器的无线接收器及其方法
公开(公告)号：US07532874B2
公开(公告)日：2009-05-12
申请号：US11270122
申请日：2005-11-09
申请人： Khurram Muhammad , Dirk Leipold
发明人： Khurram Muhammad , Dirk Leipold
IPC分类号： H04B7/00 , H04B1/10
CPC分类号： H03D3/008
摘要： The present invention provides an offset balancer for use with a differential mixer employing a wireless reception and an offset quantifier configured to indicate an existing DC offset of the mixer corresponding to an existing second-order intercept point applicable to the wireless reception. In one embodiment, the offset balancer includes an offset adjuster coupled to the offset quantifier and configured to provide an offset adjustment to the existing DC offset based on increasing the existing second-order intercept point.
摘要翻译：本发明提供一种与使用无线接收的差分混频器一起使用的偏移平衡器和配置为指示对应于可应用于无线接收的现有二阶截取点的混频器的现有DC偏移的偏移量化器。在一个实施例中，偏移平衡器包括偏移调整器，该偏移调整器耦合到偏移量化器并且被配置为基于增加现有的二阶截取点来提供对现有DC偏移的偏移调整。

38. 发明申请

US20090027127A1 System and Method for Amplifier Gain Measurement and Compensation 有权
标题翻译：放大器增益测量和补偿的系统和方法
公开(公告)号：US20090027127A1
公开(公告)日：2009-01-29
申请号：US11847961
申请日：2007-08-30
申请人： Khurram Muhammad , Dirk Leipold , Chandana Fernando
发明人： Khurram Muhammad , Dirk Leipold , Chandana Fernando
IPC分类号： H03G3/00
CPC分类号： H03G3/30 , H03F3/19 , H03F2200/294 , H03F2200/336 , H03F2200/468
摘要： A system and method for amplifier gain measurement and compensation. A method for compensating a signal gain of an amplifier circuit includes determining a desired gain for the amplifier circuit, determining an operating temperature of the amplifier circuit, adjusting a set of signal gains based on the operating temperature to produce a set of adjusted signal gains, determining a desired gain setting based on the desired gain and the set of signal gains, and providing the desired gain setting to the amplifier circuit.
摘要翻译：一种用于放大器增益测量和补偿的系统和方法。用于补偿放大器电路的信号增益的方法包括确定放大器电路的期望增益，确定放大器电路的工作温度，基于工作温度调整一组信号增益以产生一组经调整的信号增益，基于期望的增益和所述一组信号增益确定期望的增益设置，以及向放大器电路提供期望的增益设置。

39. 发明授权

US07463873B2 Wireless communications device having type-II all-digital phase-locked loop (PLL) 有权
标题翻译：具有II型全数字锁相环（PLL）的无线通信设备
公开(公告)号：US07463873B2
公开(公告)日：2008-12-09
申请号：US11122670
申请日：2005-05-04
申请人： Robert B. Staszewski , Dirk Leipold , Khurram Muhammad
发明人： Robert B. Staszewski , Dirk Leipold , Khurram Muhammad
IPC分类号： H03L7/093
CPC分类号： H03L7/1075 , H03F1/0211 , H03F1/3282 , H03L7/093 , H03L7/0991 , H03L7/107 , H03L2207/50
摘要： System and method for providing type-II (and higher order) phase-locked loops (PLLs) with a fast signal acquisition mode. A preferred embodiment comprises a wireless communication device having a loop filter with a proportional loop gain path (proportional loop gain circuit 1115 ) and an integral loop gain block (integral loop gain block 1120 ). The proportional loop gain path is used during signal acquisition to provide large loop bandwidth, hence fast signal acquisition of a desired signal. Then, during the PLL's signal tracking phase, the intergral loop gain block is enabled and its output is combined with output from the proportional loop gain path to provide higher order filtering of the desired signal. An offset that may be present due to the use of the proportional loop gain path can be measured and subtracted to help improve signal tracking settling times.
摘要翻译：用于提供具有快速信号采集模式的II型（和更高阶）锁相环（PLL）的系统和方法。优选实施例包括具有带有比例环路增益路径（比例环路增益电路1115）和积分环路增益块（积分环路增益块1120）的环路滤波器的无线通信设备。在信号采集期间使用比例环路增益路径来提供较大的环路带宽，从而快速获取所需信号的信号。然后，在PLL的信号跟踪阶段期间，使用积分环路增益模块，并将其输出与比例环路增益路径的输出相结合，以提供所需信号的高阶滤波。可以测量和减去由于使用比例环路增益路径而可能存在的偏移量，以帮助改善信号跟踪稳定时间。

40. 发明申请

US20070105509A1 RF transmission leakage mitigator, method of mitigating an RF transmission leakage and CDMA tranceiver employing the same 有权
标题翻译： RF传输泄漏减轻器，减轻RF传输泄漏的方法以及采用其的CDMA接收机
公开(公告)号：US20070105509A1
公开(公告)日：2007-05-10
申请号：US11270121
申请日：2005-11-09
申请人： Khurram Muhammad , Dirk Leipold
发明人： Khurram Muhammad , Dirk Leipold
IPC分类号： H03C1/52 , H04B1/68
CPC分类号： H03C5/00 , H04B1/525 , H04B1/707
摘要： The present invention provides an RF transmission leakage mitigator for use with a full-duplex, wireless transceiver. In one embodiment, the RF transmission leakage mitigator includes an inversion generator configured to provide an RF transmission inversion signal of an interfering transceiver RF transmission to a receiving portion of the transceiver thereby creating a residual leakage signal. Additionally, the RF transmission leakage mitigator also includes a residual processor coupled to the inversion generator and configured to adjust the RF transmission inversion signal of the interfering transceiver RF transmission based on reducing the residual leakage signal to a specified level.
摘要翻译：本发明提供了一种与全双工无线收发器一起使用的RF传输泄漏缓解器。在一个实施例中，RF传输泄漏减轻器包括反相发生器，其被配置为将干扰收发器RF传输的RF发射反转信号提供给收发器的接收部分，从而产生残余泄漏信号。此外，RF传输泄漏缓解器还包括耦合到反向发生器并被配置为基于将剩余泄漏信号减小到指定电平来调整干扰收发器RF传输的RF发射反转信号的残余处理器。

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