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1.发明申请Method for modulating phase or frequency in a communication system using clock division 有权在使用时钟分频的通信系统中调制相位或频率的方法公开(公告)号：US20070024382A1
公开(公告)日：2007-02-01
申请号：US11440343
申请日：2006-05-24
申请人： Jeff Zachan , David Hartman , Ming Lin , Morten Damgaard , Scott Kee
发明人： Jeff Zachan , David Hartman , Ming Lin , Morten Damgaard , Scott Kee
IPC分类号： H03L7/00
CPC分类号： H04L27/2092 , H03C3/0933 , H03C3/0966 , H03C3/0983 , H03L7/1976 , H03L2207/12 , H04L27/2017 , H04L27/2046
摘要： A direct division modulator is provided. The direct division modulator includes a symbol mapper converting the input data from a binary bitstream to a desired frequency deviation, such as where the frequency deviation data encodes the information from the bitstream. A converter generates a divide value using the desired frequency deviation information, and a summer adds an average value to the divide value. A converter quantizes the divide value and shapes quantization noise associated with the quantized divide value. A divider modulates a reference signal with the quantized divide value and generates an output signal.
摘要翻译： 提供了直接分频调制器。 直接分频调制器包括将输入数据从二进制比特流转换为期望的频率偏差的符号映射器，例如频率偏差数据对来自比特流的信息进行编码的地方。 A转换器使用期望的频率偏差信息产生除法值，并且加法器将平均值加到除法值。 A转换器对分频值进行量化，并形成与量化除法相关联的量化噪声。 分频器用量化除法器调制参考信号并产生输出信号。
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2.发明授权Method for modulating phase or frequency in a communication system using clock division 有权在使用时钟分频的通信系统中调制相位或频率的方法公开(公告)号：US07417514B2
公开(公告)日：2008-08-26
申请号：US11440343
申请日：2006-05-24
申请人： Jeff Zachan , David Hartman , Ming Lin , Morten Damgaard , Scott Kee
发明人： Jeff Zachan , David Hartman , Ming Lin , Morten Damgaard , Scott Kee
IPC分类号： H03C3/06
CPC分类号： H04L27/2092 , H03C3/0933 , H03C3/0966 , H03C3/0983 , H03L7/1976 , H03L2207/12 , H04L27/2017 , H04L27/2046
摘要： A direct division modulator is provided. The direct division modulator includes a symbol mapper converting the input data from a binary bitstream to a desired frequency deviation, such as where the frequency deviation data encodes the information from the bitstream. A converter generates a divide value using the desired frequency deviation information, and a summer adds an average value to the divide value. A converter quantizes the divide value and shapes quantization noise associated with the quantized divide value. A divider modulates a reference signal with the quantized divide value and generates an output signal.
摘要翻译： 提供了直接分频调制器。 直接分频调制器包括将输入数据从二进制比特流转换为期望的频率偏差的符号映射器，例如频率偏差数据对来自比特流的信息进行编码的地方。 A转换器使用期望的频率偏差信息产生除法值，并且加法器将平均值加到除法值。 A转换器对分频值进行量化，并形成与量化除法相关联的量化噪声。 分频器用量化除法器调制参考信号并产生输出信号。
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公开(公告)号：US07103127B2
公开(公告)日：2006-09-05
申请号：US09823316
申请日：2001-03-30
CPC分类号： H03L7/099 , H03B2201/025 , H03B2201/0291 , H03J2200/10 , H03L5/00 , H03L7/087 , H03L7/113
摘要： Systems for controlling the frequency of the output signal of a controllable oscillator in a frequency synthesizer are provided. One such system comprises a controllable oscillator and a frequency control circuit. The controllable oscillator is configured to generate an output signal that has a predefined frequency. The controllable oscillator is also configured with a plurality of operational states that are controlled by the frequency control circuit. Each operational state of the controllable oscillator defines a distinct frequency for the output signal of the controllable oscillator. The frequency control circuit receives the output signal of the controllable oscillator and determines the distinct frequency for the output signal that best approximates the predefined frequency. The frequency control circuit may also provide a control signal to the controllable oscillator that is configured to change the controllable oscillator to the operational state corresponding to the distinct frequency that best approximates the predefined frequency.
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公开(公告)号：US08019292B2
公开(公告)日：2011-09-13
申请号：US11827185
申请日：2007-07-11
申请人： Rahul Magoon , Scott Kee , Seyed-Ali Hajimiri , Ichiro Aoki , Roberto Aparicio Joo , Morten Damgaard , Setu Mohta , Geoff Hatcher
发明人： Rahul Magoon , Scott Kee , Seyed-Ali Hajimiri , Ichiro Aoki , Roberto Aparicio Joo , Morten Damgaard , Setu Mohta , Geoff Hatcher
IPC分类号： H04B1/40
CPC分类号： H03F1/02 , G01R19/04 , H03F1/32 , H03F1/52 , H03F3/19 , H03F2200/102 , H03F2200/324 , H03F2200/378 , H03F2200/393 , H03F2200/451 , H03F2200/453 , H03F2200/456 , H03F2200/462 , H03F2200/471 , H03F2200/541 , H03F2200/99 , H03G3/3047
摘要： A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.
摘要翻译： 提供了一种用于控制放大器功率的系统。 该系统包括接收电压信号并产生衰减的电压包络信号的电压包络检测器。 电流包络检测器接收电流信号并产生衰减电流包络信号。 控制器接收功率电平数据并产生电压包络信号和电流包络信号的衰减控制数据。 检测器接收电压包络信号和电流包络信号，并且基于电压包络信号和电流包络信号中的较大者产生控制信号。 功率放大器电平控制器接收控制信号并产生功率放大器电平控制信号。
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公开(公告)号：US08032102B2
公开(公告)日：2011-10-04
申请号：US12008888
申请日：2008-01-15
IPC分类号： H04B1/10
摘要： A system for correcting a second order intermodulation product in a direct conversion receiver is provided. The system includes a cross-covariance system receiving a data signal and a second order intermodulation estimate signal and generating a cross-covariance value. An auto-covariance system receives the second order intermodulation estimate signal and generates an auto covariance value. A buffer system stores a second order intermodulation product correction factor. A divider receives the cross-covariance value, the auto-covariance value and the second order intermodulation product correction factor and generates a running average second order intermodulation product correction factor.
摘要翻译： 提供一种用于在直接转换接收机中校正二阶互调产物的系统。 该系统包括接收数据信号和二阶互调估计信号并产生交叉协方差值的互协方差系统。 自动协方差系统接收二阶互调估计信号并产生自协方差值。 缓冲系统存储二阶互调产物校正因子。 分频器接收交叉协方差值，自协方差值和二阶互调乘积校正因子，并生成运行平均二阶互调乘积校正因子。
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6.发明授权System and method for allowing a TDMA/CDMA portable transceiver to operate with closed loop power control 有权用于允许TDMA / CDMA便携式收发器在闭环功率控制下操作的系统和方法公开(公告)号：US07369871B2
公开(公告)日：2008-05-06
申请号：US10915186
申请日：2004-08-10
CPC分类号： H03F1/0211 , H03F1/0233 , H03F2200/294 , H03F2200/372 , H03G3/3047
摘要： A method for a closed power control feedback loop allows a single portable transceiver architecture to be used for systems in which a transmit signal including both a phase modulated (PM) component and an amplitude modulated (AM) component are supplied to a power amplifier and in systems in which the transmit signal has only a PM component supplied to a power amplifier. By injecting the inverse of the AM portion of the desired transmit signal into the closed power control feedback loop, the feedback loop will not cancel the AM portion of the signal, thus allowing a system where both a PM component and an AM component of the transmit signal are present at the output of the power amplifier to function using a closed power control feedback loop.
摘要翻译： 用于闭合功率控制反馈环路的方法允许单个便携式收发器架构用于其中包括相位调制（PM）分量和调幅（AM）分量两者的发射信号被提供给功率放大器的系统，并且在 其中发射信号仅具有提供给功率放大器的PM分量的系统。 通过将期望的发射信号的AM部分的反相注入到闭合功率控制反馈环路中，反馈回路将不会消除信号的AM部分，从而允许其中PM分量和发射的AM分量两者的系统 信号存在于功率放大器的输出端，以使用闭合功率控制反馈回路工作。
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公开(公告)号：US20060270375A1
公开(公告)日：2006-11-30
申请号：US11137196
申请日：2005-05-24
申请人： Norman Beamish , William Domino , Morten Damgaard
发明人： Norman Beamish , William Domino , Morten Damgaard
IPC分类号： H04B1/10
摘要： Embodiments of a receiver impairment estimation and correction system and method that can be implemented in a low intermediate frequency receiver system are disclosed. In one embodiment, among others, a method for operating a receiver is disclosed that comprises receiving a radio frequency signal, downconverting the radio frequency signal to a downconverted signal comprising an in-phase component and quadrature-phase component, buffering the downconverted signal in a memory, estimating receiver impairments associated with the in-phase component and the quadrature-phase component for a defined time period, and compensating for the receiver impairments for each defined time period.
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公开(公告)号：US07082169B2
公开(公告)日：2006-07-25
申请号：US10207320
申请日：2002-07-29
IPC分类号： H03K7/06
CPC分类号： H03C3/0983 , H03C3/0966 , H03C5/00 , H04L27/0002 , H04L27/2017
摘要： A mirror translation loop upconverter that is capable of upconverting both constant envelope and non-constant envelope modulation formats is disclosed. Embodiments of the invention provide the ability to upconvert a transmit signal that includes only a phase-modulated component, only an amplitude-modulated component, or both a phase-modulated component and an amplitude-modulated component. If the transmit signal includes both a phase-modulated signal component and an amplitude-modulated signal component, the phase-modulated signal component and the amplitude-modulated signal component are supplied to a pair of phase shifters. The phase shifters alter the phase of the phase-modulated signal by an amount related to the amplitude of the amplitude-modulated signal. The phase shifters oppositely alter the phase of the phase-modulated signal, and therefore supply complementary phase versions of the phase-modulated signal. The phase-altered phase-modulated signals from the phase shifters are then supplied to a pair of translation loops. The translation loops are arranged in mirror architecture so that each translation loop receives the phase-altered phase-modulated signals. Each translation loop upconverts the signals and supplies a vector. The vectors supplied by the two translation loops are constant in magnitude, and have complementary phase. The two vectors are added together to provide a signal to a power amplifier. The signal represents both the phase and amplitude information to be transmitted.
摘要翻译： 公开了能够上变频恒定包络和非恒定包络调制格式的镜像平移环上变频器。 本发明的实施例提供将仅包括相位调制分量，仅调幅分量，或相位调制分量和幅度调制分量两者的发射信号上转换的能力。 如果发送信号包括相位调制信号分量和幅度调制信号分量，则相位调制信号分量和幅度调制信号分量被提供给一对移相器。 移相器将相位调制信号的相位改变与幅度调制信号的振幅相关的量。 移相器相反地改变相位调制信号的相位，并因此提供相位调制信号的互补相位版本。 然后将来自移相器的相位改变的相位调制信号提供给一对平移环路。 平移环路以镜像架构布置，使得每个平移环路接收相位改变的相位调制信号。 每个平移循环将信号上变频并提供向量。 由两个平移环提供的向量在幅度上是恒定的，并且具有互补相位。 将两个矢量相加在一起以向功率放大器提供信号。 信号表示要发送的相位和幅度信息。
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9.发明授权Multiple step switched translation loop for power amplifier feedback control 有权用于功率放大器反馈控制的多步切换平移环路公开(公告)号：US06792282B1
公开(公告)日：2004-09-14
申请号：US09666698
申请日：2000-09-21
IPC分类号： H04B102
CPC分类号： H03G3/3047 , H03G2201/103 , H03G2201/202 , H03G2201/206 , H03G2201/307
摘要： A translation loop modulator and power amplifier in a phase and amplitude modulated transmission environment includes a translation loop having a phase locked loop and that is configured to receive a first modulated signal (PM) and that is also configured to provide a frequency specific modulated signal. The invention also includes a power amplifier configured to receive the frequency specific modulated signal, a variable gain element configured to provide a second modulated signal (AM) to the power amplifier and a switching element configured to receive a portion of an output of the translation loop and a portion of an output power of the power amplifier. The switching element is configured to apply the output portion of the translation loop to an input of the translation loop during a first time period and apply the detected output power portion of the power amplifier to the input of the translation loop during a second time period, thus allowing the phase locked loop in the translation loop to correct for any phase shift caused by the power amplifier.
摘要翻译： 在相位和幅度调制传输环境中的平移环路调制器和功率放大器包括具有锁相环的平移环路，并且被配置为接收第一调制信号（PM），并且还被配置为提供频率特定调制信号。 本发明还包括被配置为接收频率特定调制信号的功率放大器，被配置为向功率放大器提供第二调制信号（AM）的可变增益元件和被配置为接收转换回路的输出的一部分的开关元件 和功率放大器的输出功率的一部分。 开关元件被配置为在第一时间段期间将平移环路的输出部分施加到平移环路的输入端，并且在第二时间周期期间将功率放大器的检测输出功率部分施加到平移环路的输入端， 从而允许平移环路中的锁相环校正由功率放大器引起的任何相移。
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10.发明授权System for closed loop power control using a linear or a non-linear power amplifier 有权使用线性或非线性功率放大器进行闭环功率控制的系统公开(公告)号：US06670849B1
公开(公告)日：2003-12-30
申请号：US09650987
申请日：2000-08-30
IPC分类号： H03G320
CPC分类号： H03G3/3042 , H03F1/02 , H03F2200/294 , H03F2200/372 , H04W52/52
摘要： A system for a closed power control feedback loop allows for the use of a non-linear amplifier for amplifying a phase modulated (PM) signal while introducing an inverse version of the desired amplitude modulated (AM) signal into the feedback loop using a variable gain element. By introducing an inverse version of the desired AM portion of the signal into the power control feedback loop, the non-linear, and highly efficient, power amplifier may be used to amplify only the PM portion of the signal, while the AM portion is introduced by the power control feedback loop. In another aspect of the invention, an inverse version of the AM portion of the desired transmit signal is introduced into the power control feedback loop of an amplifier that is amplifying both a phase modulated signal and an amplitude modulated signal. By introducing an inverse version of the desired AM signal into the power control feedback loop, the power control feedback loop may not cancel the AM component present at the output of the power amplifier. In yet another aspect of the invention, the desired AM signal is injected into the feedback loop along with the power control reference signal.
摘要翻译： 用于闭合功率控制反馈回路的系统允许使用非线性放大器来放大相位调制（PM）信号，同时使用可变增益将所需幅度调制（AM）信号的逆版本引入反馈环路 元件。 通过将信号的期望的AM部分的逆版本引入功率控制反馈回路中，可以使用非线性和高效的功率放大器来仅放大信号的PM部分，同时引入AM部分 通过功率控制反馈回路。 在本发明的另一方面，将期望的发送信号的AM部分的逆版本引入放大器的功率控制反馈环路，该放大器正在放大相位调制信号和幅度调制信号。 通过将所需AM信号的逆版本引入功率控制反馈回路中，功率控制反馈回路可能不会消除存在于功率放大器输出端的AM分量。 在本发明的另一方面，所需的AM信号与功率控制参考信号一起被注入到反馈回路中。
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