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公开(公告)号：US07242912B2
公开(公告)日：2007-07-10
申请号：US10631166
申请日：2003-07-31
申请人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
IPC分类号： H04B1/40
CPC分类号： H04B1/0003 , H03L7/085 , H03L7/087 , H03L7/091 , H03L7/099 , H03L7/187 , H03L7/199 , H03L7/23 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.
摘要翻译： 包括生成具有可变频率的参考信号的晶体振荡器电路的收发器电路和频率修改电路的射频（RF）设备的组件可以以各种方式被划分，例如作为一个或多个单独的集成电路。 频率修改电路可以被实现为包括数字控制的晶体振荡器（“DCXO”）电路和晶体的晶体振荡器电路的一部分。 频率修改电路可以包括至少一个可变电容器件，并且可以用于产生具有可调频率的参考信号。 可调参考信号可以被提供给RF装置的其他部件，和/或RF装置可以被配置为向基带处理器电路提供可调参考信号。 自动频率控制（AFC）电路可以与RF电路的其它组件集成，并且可以基于例如从温度传感器接收的信号来生成用于频率修改电路的频率控制信号。 数模转换器（DAC）电路可以与RF电路的其他部件集成，以实现从基带处理器电路到RF电路的全数字频率控制通信。
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公开(公告)号：US07221921B2
公开(公告)日：2007-05-22
申请号：US10730404
申请日：2003-12-08
申请人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto M. Marques , Lysander Lim , G. Tyson Tuttle , Aslamali A. Rafi , Tod Paulus , Gregory T. Uehara , Jeffrey W. Scott , Richard T. Behrens , Donald A. Kerth , G. Diwakar Vishakhadatta , Vishnu S. Srinivasan , Caiyi Wang
CPC分类号： H04B1/30 , H03J2200/10 , H04L27/0002
摘要： Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.
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3.发明申请公开(公告)号：US20100166124A1
公开(公告)日：2010-07-01
申请号：US12715361
申请日：2010-03-01
申请人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
发明人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
CPC分类号： H04B1/28 , H04B1/0003 , H04B1/38 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.
摘要翻译： 射频（RF）接收机包括接收机模拟电路和接收机数字电路。 接收器模拟电路驻留在第一集成电路内，并且接收器数字电路位于第二集成电路内。 第二集成电路通过一位数字接口耦合到第一集成电路。 接收机模拟电路接收RF信号并处理所接收的RF信号以产生数字信号。 接收机模拟电路将数字信号提供给接收机数字电路。 接收机数字电路包括数字下变频器电路，其将数字信号与中频（IF）本地振荡器（LO）信号混合以产生数字下变频信号。 接收机数字电路还包括数字滤波器电路，其对数字下变频信号进行滤波以产生经滤波的数字信号。
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公开(公告)号：US07228109B2
公开(公告)日：2007-06-05
申请号：US10074676
申请日：2002-02-12
申请人： Tod Paulus , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
发明人： Tod Paulus , Donald A. Kerth , Richard T. Behrens , Jeffrey W. Scott , G. Diwakar Vishakhadatta , G. Tyson Tuttle , Vishnu S. Srinivasan
IPC分类号： H04B1/40
CPC分类号： H04L25/061 , H04B1/0003 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency receiver circuitry includes a down-converter circuitry, an analog-to-digital converter circuitry, and a DC offset reduction circuitry. The down-converter circuitry accepts a received radio-frequency signal and processes the radio-frequency signal to provide an in-phase down-converted signal and a quadrature down-converted signal to the analog-to-digital converter circuitry. The analog-to-digital converter circuitry converts the in-phase and quadrature down-converted signals to an in-phase digital output signal and a quadrature digital output signal, respectively. The DC offset reduction circuitry couples to the analog-to-digital converter circuitry, and tends to reduce a DC offset transmitted to the in-phase and quadrature digital output signals.
摘要翻译： 射频接收器电路包括下变频器电路，模数转换器电路和DC偏移减小电路。 下变换器电路接收接收的射频信号并处理射频信号以向模数转换器电路提供同相下变频信号和正交下变频信号。 模数转换器电路将同相和正交下变频信号分别转换为同相数字输出信号和正交数字输出信号。 DC偏移降低电路耦合到模数转换器电路，并且倾向于减少传输到同相和正交数字输出信号的DC偏移。
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公开(公告)号：US07024221B2
公开(公告)日：2006-04-04
申请号：US10075099
申请日：2002-02-12
申请人： Tod Paulus , Richard T. Behrens , Vishnu S. Srinivasan , Mark S. Spurbeck , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
发明人： Tod Paulus , Richard T. Behrens , Vishnu S. Srinivasan , Mark S. Spurbeck , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
CPC分类号： H04B1/0003 , H04B1/28 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry coupled together. The receiver analog circuitry receives an RF signal. The receiver analog circuitry processes the received RF signal and generates a digital signal that it provides to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal provided by a receiver analog circuitry with a digital intermediate frequency (IF) local oscillator signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal. The digital filter circuitry provides a notch at a frequency that corresponds to a residual DC offset of the receiver analog circuitry.
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公开(公告)号：US07702362B2
公开(公告)日：2010-04-20
申请号：US11287995
申请日：2005-11-28
申请人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
发明人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
CPC分类号： H04B1/28 , H04B1/0003 , H04B1/38 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.
摘要翻译： 射频（RF）接收机包括接收机模拟电路和接收机数字电路。 接收器模拟电路驻留在第一集成电路内，并且接收器数字电路位于第二集成电路内。 第二集成电路通过一位数字接口耦合到第一集成电路。 接收机模拟电路接收RF信号并处理所接收的RF信号以产生数字信号。 接收机模拟电路将数字信号提供给接收机数字电路。 接收机数字电路包括数字下变频器电路，其将数字信号与中频（IF）本地振荡器（LO）信号混合以产生数字下变频信号。 接收机数字电路还包括数字滤波器电路，其对数字下变频信号进行滤波以产生经滤波的数字信号。
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公开(公告)号：US08224259B2
公开(公告)日：2012-07-17
申请号：US12715361
申请日：2010-03-01
申请人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
发明人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
CPC分类号： H04B1/28 , H04B1/0003 , H04B1/38 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.
摘要翻译： 射频（RF）接收机包括接收机模拟电路和接收机数字电路。 接收器模拟电路驻留在第一集成电路内，并且接收器数字电路位于第二集成电路内。 第二集成电路通过一位数字接口耦合到第一集成电路。 接收机模拟电路接收RF信号并处理所接收的RF信号以产生数字信号。 接收机模拟电路将数字信号提供给接收机数字电路。 接收机数字电路包括数字下变频器电路，其将数字信号与中频（IF）本地振荡器（LO）信号混合以产生数字下变频信号。 接收机数字电路还包括数字滤波器电路，其对数字下变频信号进行滤波以产生经滤波的数字信号。
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公开(公告)号：US06970717B2
公开(公告)日：2005-11-29
申请号：US10075122
申请日：2002-02-12
申请人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
发明人： Richard T. Behrens , Tod Paulus , Mark S. Spurbeck , Vishnu S. Srinivasan , Donald A. Kerth , Jeffrey W. Scott , G. Tyson Tuttle , G. Diwakar Vishakhadatta
CPC分类号： H04B1/28 , H04B1/0003 , H04B1/38 , H04B1/406 , H04B15/02 , H04B15/04 , H04B2215/064
摘要： A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.
摘要翻译： 射频（RF）接收机包括接收机模拟电路和接收机数字电路。 接收器模拟电路驻留在第一集成电路内，并且接收器数字电路位于第二集成电路内。 第二集成电路通过一位数字接口耦合到第一集成电路。 接收机模拟电路接收RF信号并处理所接收的RF信号以产生数字信号。 接收机模拟电路将数字信号提供给接收机数字电路。 接收机数字电路包括数字下变频器电路，其将数字信号与中频（IF）本地振荡器（LO）信号混合以产生数字下变频信号。 接收机数字电路还包括数字滤波器电路，其对数字下变频信号进行滤波以产生经滤波的数字信号。
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公开(公告)号：US20070054629A1
公开(公告)日：2007-03-08
申请号：US10730404
申请日：2003-12-08
申请人： James Maligeorgos , Augusto Marques , Lysander Lim , G. Tuttle , Aslamali Rafi , Tod Paulus , Gregory Uehara , Jeffrey Scott , Richard Behrens , Donald Kerth , G. Vishakhadatta , Vishnu Srinivasan , Caiyi Wang
发明人： James Maligeorgos , Augusto Marques , Lysander Lim , G. Tuttle , Aslamali Rafi , Tod Paulus , Gregory Uehara , Jeffrey Scott , Richard Behrens , Donald Kerth , G. Vishakhadatta , Vishnu Srinivasan , Caiyi Wang
IPC分类号： H04B1/38
CPC分类号： H04B1/30 , H03J2200/10 , H04L27/0002
摘要： Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.
摘要翻译： 包括生成具有可变频率的参考信号的晶体振荡器电路的收发器电路和频率修改电路的射频（RF）设备的组件可以以各种方式被划分，例如作为一个或多个单独的集成电路。 频率修改电路可以被实现为包括数字控制的晶体振荡器（“DCXO”）电路和晶体的晶体振荡器电路的一部分。 频率修改电路可以包括至少一个可变电容器件，并且可以用于产生具有可调频率的参考信号。 可调参考信号可以被提供给RF装置的其他部件，和/或RF装置可以被配置为向基带处理器电路提供可调参考信号。 自动频率控制（AFC）电路可以与RF电路的其它组件集成，并且可以基于例如从温度传感器接收的信号来生成用于频率修改电路的频率控制信号。 数模转换器（DAC）电路可以与RF电路的其他部件集成，以实现从基带处理器电路到RF电路的全数字频率控制通信。
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10.发明授权公开(公告)号：US07676210B2
公开(公告)日：2010-03-09
申请号：US11227797
申请日：2005-09-15
IPC分类号： H04B1/10
摘要： A method is disclosed for performing dual mode image rejection calibration in a receiver. A first image correction factor is acquired for use in a receiver system using a first known signal associated with a first signal band during a startup mode. The first image correction factor is adjusted incrementally during a normal operation mode. A radio frequency (RF) signal associated with the first signal band is received using the first image correction factor during the normal operation mode.
摘要翻译： 公开了一种用于在接收机中执行双模式拒绝校准的方法。 在启动模式期间，使用与第一信号频带相关联的第一已知信号在接收机系统中获取第一图像校正因子。 在正常操作模式期间，第一图像校正因子被递增地调整。 在正常操作模式期间使用第一图像校正因子接收与第一信号频带相关联的射频（RF）信号。
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