公开(公告)号：JP2011041298A

公开(公告)日：2011-02-24

申请号：JP2010206744

申请日：2010-09-15

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： BALLANTYNE GARY JOHN ,  SAHOTA GURKANWAL SINGH

IPC: H03L7/107 ,  H03L7/093

CPC classification number: H03L7/107 ,  H03L7/093

Abstract: PROBLEM TO BE SOLVED: To provide a phase lock loop (PLL) system having locking and tracking modes of operation. SOLUTION: The PLL includes a voltage controlled oscillator (VCO) outputting a signal at a desired frequency. A phase detector is coupled to an output from the VCO. The phase detector compares a phase of the signal outputted from the VCO with a phase of a reference signal. A loop filter 601 is coupled to the VCO and the phase detector. The loop filter 601 includes a switch 603. When the switch 603 is set at a vertical position, the loop filter 601 enters the locking operation mode to lock the phase of the VCO signal with the phase of the reference signal. The loop filter can be put in the tracking operation mode by setting the switch 603 at a horizontal position. In the tracking operation mode, the phase of the VCO signal is adjusted to track the phase of the reference signal. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供具有锁定和跟踪操作模式的锁相环（PLL）系统。 解决方案：PLL包括以期望频率输出信号的压控振荡器（VCO）。 相位检测器耦合到VCO的输出端。 相位检测器将从VCO输出的信号的相位与参考信号的相位进行比较。 环路滤波器601耦合到VCO和相位检测器。 环路滤波器601包括开关603.当开关603设置在垂直位置时，环路滤波器601进入锁定操作模式，以基准信号的相位锁定VCO信号的相位。 通过将开关603设置在水平位置，可以将环路滤波器置于跟踪操作模式。 在跟踪操作模式中，调整VCO信号的相位以跟踪参考信号的相位。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010022009A

公开(公告)日：2010-01-28

申请号：JP2009188040

申请日：2009-08-14

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： VLADIMIR APARIN ,  BALLANTYNE GARY JOHN ,  PERSICO CHARLES J

IPC: H04B1/40 ,  H04B1/10 ,  H04B7/005

Abstract: PROBLEM TO BE SOLVED: To provide an adaptive filter (430) for transmission leak signal cancellation. SOLUTION: There is described an adaptive filter, suitable for manufacturing on an RF integrated circuit, to be used for transmission (TX) leak cancellation in a wireless full-duplex communication system. The adaptive filter includes adders (530, 540) and an adaptive estimator (510). The adder receives a signal having a TX leak signal and an estimate signal having an estimate of the TX leak signal, the estimate signal is subtracted from the input signal, and an output signal having the attenuated TX leak signal is provided. The adaptive estimator receives the output signal and a reference signal having a first version of a transmission signal, estimates the TX leak signal in the input signal on the basis of the output signal and the reference signal, and provides the estimate signal. The adaptive estimator may also utilize an LMS algorithm to suppress, to a minimum, a mean square error between the TX leak signal in the input signal and the TX leak signal estimate in the estimate signal. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供用于传输泄漏信号消除的自适应滤波器（430）。 解决方案：描述了一种适用于在RF集成电路上制造的自适应滤波器，用于无线全双工通信系统中的传输（TX）泄漏消除。 自适应滤波器包括加法器（530,540）和自适应估计器（510）。 加法器接收具有TX泄漏信号的信号和具有TX泄漏信号的估计的估计信号，从输入信号中减去估计信号，并提供具有衰减的TX泄漏信号的输出信号。 自适应估计器接收输出信号和具有传输信号的第一版本的参考信号，基于输出信号和参考信号估计输入信号中的TX泄漏信号，并提供估计信号。 自适应估计器还可以利用LMS算法将输入信号中的TX泄漏信号与估计信号中的TX泄漏信号估计之间的均方误差降至最小。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：DE60331651D1

公开(公告)日：2010-04-22

申请号：DE60331651

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H03F1/32 ,  H03F3/66

Abstract: An amplitude modulated source signal (102) is received, where this signal has a source frequency bandwidth and a source envelope. A dummy envelope is computed that would yield a constant if the dummy envelope and source envelope were to be combined. An amplitude modulated dummy signal (105) is generated, where this dummy signal exhibits the computed, dummy signal envelope and has a prescribed frequency bandwidth different than the source frequency bandwidth. The source and dummy signals are added to form a combined signal (113), which is directed to an input (114a) of a nonlinear circuit (114), that is, one that exhibits amplitude dependent nonlinearity. Signals of the dummy frequency bandwidth and any intermodulation products are filtered from the output, thereby providing a linearized output (118) corresponding to the original, source signal.

公开(公告)号：AT542305T

公开(公告)日：2012-02-15

申请号：AT04811159

申请日：2004-11-15

Applicant: QUALCOMM INC

Inventor： APARIN VLADIMIR ,  BALLANTYNE GARY JOHN ,  PERSICO CHARLES J

IPC: H04B1/52

公开(公告)号：ES2342884T3

公开(公告)日：2010-07-16

申请号：ES03742287

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H03F1/32 ,  H03F3/66

Abstract: Un procedimiento (400) de linealización, que comprende las operaciones de: recibir (402) una señal (102) fuente modulada en amplitud que presenta un ancho de banda de frecuencias fuente y una envolvente fuente; calcular (404) múltiples envolventes ficticias que proporcionen una constante predeterminada cuando la envolvente fuente y las envolventes ficticias fueran a combinarse; crear (406) múltiples señales (105, 105A, 105B) ficticias moduladas en amplitud que presenten envolventes ficticias correspondientes de las múltiples envolventes ficticias y donde cada una de las múltiples señales (105, 105A, 105B) ficticias moduladas en amplitud presenta un ancho de banda de frecuencias ficticias que difiere del ancho de banda de frecuencias fuente y del ancho de banda de frecuencias de las otras señales (105, 105A, 105B) ficticias moduladas en amplitud; sumar (408) la señal (102) fuente y las múltiples señales (105, 105A, 105B) ficticias para formar una señal (113) combinada; dirigir (410) la señal (113) combinada a una entrada de un módulo (114) de procesamiento que presenta una no linealidad dependiente de la amplitud; y filtrar (412) la salida (114B) que incluye la señal (102) fuente y las señales (105, 105A, 105B) ficticias para proporcionar una salida (118) linealizada.

公开(公告)号：AU2003280464B2

公开(公告)日：2008-08-28

申请号：AU2003280464

申请日：2003-06-26

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H03F1/32 ,  H03F3/66

Abstract: An amplitude modulated source signal (102) is received, where this signal has a source frequency bandwidth and a source envelope. A dummy envelope is computed that would yield a constant if the dummy envelope and source envelope were to be combined. An amplitude modulated dummy signal (105) is generated, where this dummy signal exhibits the computed, dummy signal envelope and has a prescribed frequency bandwidth different than the source frequency bandwidth. The source and dummy signals are added to form a combined signal (113), which is directed to an input (114a) of a nonlinear circuit (114), that is, one that exhibits amplitude dependent nonlinearity. Signals of the dummy frequency bandwidth and any intermodulation products are filtered from the output, thereby providing a linearized output (118) corresponding to the original, source signal.

公开(公告)号：DE60321344D1

公开(公告)日：2008-07-10

申请号：DE60321344

申请日：2003-06-28

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H04B1/10 ,  H03F1/32

Abstract: A signal processing method, applied in a wireless communications module having a receive path, prevents a nonlinear device in the receive path from using an amplitude modulated transmit or other bleed-over signal in the receive path to modulate a non-amplitude modulated jammer signal on the receive path (or to further modulate an already amplitude modulated jammer signal). The bleed-over signal is conditioned by adding one or more amplitude modulated dummy signal(s) having an envelope that complements an envelope of the bleed-over signal, forcing the nonlinear circuit to operate linearly with respect to the jammer signal. Output of the amplifier may be filtered to remove signals having bandwidths of the dummy signal(s), bleed-over signal, jammer signal, and any intermodulation products generated by introducing the dummy signal(s).

公开(公告)号：AT525808T

公开(公告)日：2011-10-15

申请号：AT09707171

申请日：2009-02-06

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H03M3/04

Abstract: Techniques for performing digital-to-analog conversion with first-order or higher-order hold using a simple analog circuit for signal reconstruction and employing feedback control techniques are described. In one design, a digital-to-analog conversion circuit includes an inverse model circuit, a feedback circuit, a zero-order hold (ZOH) circuit, and an analog circuit. The inverse model circuit processes a digital input signal and provides a first digital signal. The feedback circuit receives the first digital signal and an analog output signal from the analog circuit, performs low frequency noise filtering, and provides a second digital signal. The ZOH circuit converts the second digital signal from digital to analog with zero-order hold and provides an analog input signal for the analog circuit. The analog circuit operates on the analog input signal and provides the analog output signal. The analog circuit may be a simple circuit having one or more poles.

公开(公告)号：HK1082128A1

公开(公告)日：2006-05-26

申请号：HK06102197

申请日：2006-02-18

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H04B20090101 ,  H03F20090101 ,  H03F1/32 ,  H04B1/10

Abstract: A signal processing method, applied in a wireless communications module having a receive path, prevents a nonlinear device in the receive path from using an amplitude modulated transmit or other bleed-over signal in the receive path to modulate a non-amplitude modulated jammer signal on the receive path (or to further modulate an already amplitude modulated jammer signal). The bleed-over signal is conditioned by adding one or more amplitude modulated dummy signal(s) having an envelope that complements an envelope of the bleed-over signal, forcing the nonlinear circuit to operate linearly with respect to the jammer signal. Output of the amplifier may be filtered to remove signals having bandwidths of the dummy signal(s), bleed-over signal, jammer signal, and any intermodulation products generated by introducing the dummy signal(s).

公开(公告)号：BR0312221A

公开(公告)日：2005-04-12

申请号：BR0312221

申请日：2003-06-28

Applicant: QUALCOMM INC

Inventor： BALLANTYNE GARY JOHN

IPC: H03F1/32 ,  H04B1/10

Abstract: A signal processing method, applied in a wireless communications module having a receive path, prevents a nonlinear device in the receive path from using an amplitude modulated transmit or other bleed-over signal in the receive path to modulate a non-amplitude modulated jammer signal on the receive path (or to further modulate an already amplitude modulated jammer signal). The bleed-over signal is conditioned by adding one or more amplitude modulated dummy signal(s) having an envelope that complements an envelope of the bleed-over signal, forcing the nonlinear circuit to operate linearly with respect to the jammer signal. Output of the amplifier may be filtered to remove signals having bandwidths of the dummy signal(s), bleed-over signal, jammer signal, and any intermodulation products generated by introducing the dummy signal(s).