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公开(公告)号：US07155193B2
公开(公告)日：2006-12-26
申请号：US10806682
申请日：2004-03-22
IPC分类号： H04B1/38
摘要： A multi-channel filtering system for use with a transceiver includes a front-end multi-pole, multi-throw switch, a back-end multi-pole, multi-throw switch, and a plurality of filters. The front-end switch includes a receive pole, a transmit pole, and a plurality of switch throws. The back-end switch also includes a receive pole, a transmit pole, and a plurality of switch throws. Each of the plurality of filters has first and second ports, each first port coupled to one of the switch throws of the front-end switch, and each second port coupled to one of the switch throws of the back-end switch. Using this configuration, filters of differing bandwidths can be switched in during signal reception and/or transmission, thereby tailoring the communication rate to the particular conditions.
摘要翻译： 用于收发器的多通道滤波系统包括前端多极，多掷开关，后端多极，多掷开关和多个滤波器。 前端开关包括接收极，发射极和多个开关掷。 后端开关还包括接收极，发射极和多个开关掷。 多个滤波器中的每一个具有第一和第二端口，每个第一端口耦合到前端开关的开关引脚之一，并且每个第二端口耦合到后端开关的一个开关引脚。 使用该配置，可以在信号接收和/或传输期间切换不同带宽的滤波器，从而根据特定条件定制通信速率。
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2.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07965988B2
公开(公告)日：2011-06-21
申请号：US12575458
申请日：2009-10-07
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a method for off-line calibration of a radio frequency (RF) communication system may include one or more of the following: enabling an off-line calibration mode for an RF communication system; generating an off-line calibration signal; applying to a frequency converter a first off-line calibration signal corresponding to the generated off-line calibration signal; translating the first off-line calibration signal into a second off-line calibration signal; evaluating one or more calibration adjustment signals associated with the calibration signal to reduce error in the communication system, wherein the one or more calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances; storing one or more calibration adjustment signals; disabling the off-line calibration mode; applying a communication signal; and adjusting the communication signal based on the stored one or more calibration adjustment signals.
摘要翻译： 用于射频（RF）通信系统的离线校准的方法的示例可以包括以下中的一个或多个：启用用于RF通信系统的离线校准模式; 产生离线校准信号; 向频率转换器施加对应于所生成的离线校准信号的第一离线校准信号; 将所述第一离线校准信号转换为第二离线校准信号; 评估与所述校准信号相关联的一个或多个校准调节信号以减少所述通信系统中的误差，其中所述一个或多个校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位中的至少一个相关联的不平衡参数 不平衡 存储一个或多个校准调整信号; 禁用离线校准模式; 应用通信信号; 以及基于所存储的一个或多个校准调整信号来调整通信信号。
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公开(公告)号：US20110133783A1
公开(公告)日：2011-06-09
申请号：US12630601
申请日：2009-12-03
摘要： An interpolation circuit for comparing an input voltage signal with an interpolated reference signal derived from a first reference voltage signal and a second reference voltage signal may include a transconductive circuit configured to generate a first differential current signal proportional to a difference between the first reference voltage signal and the input voltage signal and a second differential current signal proportional to a difference between the second reference voltage signal and the input voltage signal, an intermediate circuit configured to generate a third differential current signal, and a transinductive circuit configured to generate an output voltage signal having a first polarity if a value of the input voltage signal is greater than a value of the interpolated reference signal and a second polarity if the value of the input signal is less than the value of the interpolated reference signal.
摘要翻译： 用于将输入电压信号与从第一参考电压信号和第二参考电压信号导出的内插参考信号进行比较的内插电路可以包括经导电电路，其经配置以产生与第一参考电压信号 以及输入电压信号和与第二参考电压信号和输入电压信号之间的差成比例的第二差分电流信号，被配置为产生第三差分电流信号的中间电路和被配置为产生输出电压信号的传感电路 如果输入电压信号的值大于插值参考信号的值，则具有第一极性，如果输入信号的值小于内插参考信号的值，则具有第二极性。
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4.发明申请APPARATUS AND METHOD FOR CALIBRATION OF GAIN AND/OR PHASE IMBALANCE AND/OR DC OFFSET IN A COMMUNICATION SYSTEM 有权用于在通信系统中校准增益和/或相位不平衡和/或直流偏移的装置和方法公开(公告)号：US20100022199A1
公开(公告)日：2010-01-28
申请号：US12575457
申请日：2009-10-07
IPC分类号： H04B1/40
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a radio frequency (RF) receiver system for communication may include a receive channel frequency converter configured to provide a second receive calibration signal during a receive calibration mode based on a first receive calibration signal and a receive reference signal. The system may include a receive pre-distortion module coupled to the receive channel frequency converter. The receive pre-distortion module may be configured to provide a fourth receive calibration signal during the receive calibration mode based on a third receive calibration signal and one or more receive calibration adjustment signals. The one or more receive calibration adjustment signals may comprise an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances.
摘要翻译： 用于通信的射频（RF）接收机系统的示例可以包括接收信道频率转换器，其被配置为在基于第一接收校准信号和接收参考信号的接收校准模式期间提供第二接收校准信号。 该系统可以包括耦合到接收信道频率转换器的接收预失真模块。 接收预失真模块可以被配置为在接收校准模式期间基于第三接收校准信号和一个或多个接收校准调整信号来提供第四接收校准信号。 一个或多个接收校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位不平衡中的至少一个相关联的不平衡参数。
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公开(公告)号：US20080284531A1
公开(公告)日：2008-11-20
申请号：US12122635
申请日：2008-05-16
申请人： Craig A. Hornbuckle
发明人： Craig A. Hornbuckle
IPC分类号： H03L7/085
CPC分类号： H03L7/1976
摘要： A fractional-N synthesized chirp generator includes a fractional-N synthesizer and a digital ramp synthesizer. The fractional-N synthesizer has a frequency synthesizer and a sigma-delta modulator module. The fractional-N synthesizer is configured to receive a reference frequency input signal and a frequency control value. The fractional-N synthesizer is configured to transform the reference frequency signal and the frequency control value to a chirped radio frequency (RF) output signal in a deterministic manner. The digital ramp synthesizer is configured to receive the reference frequency input signal and configured to generate the frequency control value utilizing the reference frequency input signal. The digital ramp synthesizer is further configured to provide the frequency control value to the fractional-N synthesizer. The frequency control value varies with time.
摘要翻译： 分数N合成啁啾发生器包括分数N合成器和数字斜坡合成器。 分数N合成器具有频率合成器和Σ-Δ调制器模块。 分数N合成器被配置为接收参考频率输入信号和频率控制值。 分数N合成器被配置为以确定的方式将参考频率信号和频率控制值转换成啁啾射频（RF）输出信号。 数字斜坡合成器被配置为接收参考频率输入信号并被配置为利用参考频率输入信号产生频率控制值。 数字斜坡合成器还被配置为向小数N合成器提供频率控制值。 频率控制值随时间变化。
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6.发明申请Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US20070298733A1
公开(公告)日：2007-12-27
申请号：US11590278
申请日：2006-10-30
IPC分类号： H04B1/04
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： A radio frequency transceiver for off-line transmit and receive calibrations includes: a transmit pre-distortion module configured to receive a transmit calibration signal during a transmit calibration mode, a transmit communication signal during a transmit communication operation mode, and one or more transmit calibration adjustment signals; a transmit channel frequency converter; and a transmit calibration module configured to provide the one or more transmit calibration adjustment signals and the transmit calibration signal to the transmit pre-distortion module. It may also include a receive channel frequency converter; a receive pre-distortion module configured to receive a receive calibration signal during the receive calibration mode, a receive communication signal during a receive communication operation mode, and one or more receive calibration adjustment signals; and a receive calibration module configured to provide the one or more receive calibration adjustment signals to the receive pre-distortion module and a receive calibration signal to the transmit pre-distortion module.
摘要翻译： 用于离线发射和接收校准的射频收发器包括：发射预失真模块，被配置为在发射校准模式期间接收发射校准信号，在发射通信操作模式期间接收发射校准信号，以及一个或多个发射校准 调整信号; 发射信道变频器; 以及发射校准模块，被配置为将所述一个或多个发射校准调整信号和所述发射校准信号提供给所述发射预失真模块。 它还可以包括接收频道变频器; 接收预失真模块，被配置为在接收校准模式期间接收接收校准信号，接收通信操作模式期间的接收通信信号以及一个或多个接收校准调整信号; 以及接收校准模块，其被配置为向所述接收预失真模块提供所述一个或多个接收校准调整信号，以及向所述发射预失真模块提供接收校准信号。
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7.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07907916B2
公开(公告)日：2011-03-15
申请号：US12575457
申请日：2009-10-07
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a radio frequency (RF) receiver system for communication may include a receive channel frequency converter configured to provide a second receive calibration signal during a receive calibration mode based on a first receive calibration signal and a receive reference signal. The system may include a receive pre-distortion module coupled to the receive channel frequency converter. The receive pre-distortion module may be configured to provide a fourth receive calibration signal during the receive calibration mode based on a third receive calibration signal and one or more receive calibration adjustment signals. The one or more receive calibration adjustment signals may comprise an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances.
摘要翻译： 用于通信的射频（RF）接收机系统的示例可以包括接收信道频率转换器，其被配置为在基于第一接收校准信号和接收参考信号的接收校准模式期间提供第二接收校准信号。 该系统可以包括耦合到接收信道频率转换器的接收预失真模块。 接收预失真模块可以被配置为在接收校准模式期间基于第三接收校准信号和一个或多个接收校准调整信号来提供第四接收校准信号。 一个或多个接收校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位不平衡中的至少一个相关联的不平衡参数。
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8.发明申请APPARATUS AND METHOD FOR CALIBRATION OF GAIN AND/OR PHASE IMBALANCE AND/OR DC OFFSET IN A COMMUNICATION SYSTEM 有权用于在通信系统中校准增益和/或相位不平衡和/或直流偏移的装置和方法公开(公告)号：US20100022200A1
公开(公告)日：2010-01-28
申请号：US12575458
申请日：2009-10-07
IPC分类号： H04B1/40
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： An example of a method for off-line calibration of a radio frequency (RF) communication system may include one or more of the following: enabling an off-line calibration mode for an RF communication system; generating an off-line calibration signal; applying to a frequency converter a first off-line calibration signal corresponding to the generated off-line calibration signal; translating the first off-line calibration signal into a second off-line calibration signal; evaluating one or more calibration adjustment signals associated with the calibration signal to reduce error in the communication system, wherein the one or more calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances; storing one or more calibration adjustment signals; disabling the off-line calibration mode; applying a communication signal; and adjusting the communication signal based on the stored one or more calibration adjustment signals.
摘要翻译： 用于射频（RF）通信系统的离线校准的方法的示例可以包括以下中的一个或多个：启用用于RF通信系统的离线校准模式; 产生离线校准信号; 向频率转换器施加对应于所生成的离线校准信号的第一离线校准信号; 将所述第一离线校准信号转换为第二离线校准信号; 评估与所述校准信号相关联的一个或多个校准调节信号以减少所述通信系统中的误差，其中所述一个或多个校准调整信号可以包括与DC偏移相关联的偏移参数和与增益和相位中的至少一个相关联的不平衡参数 不平衡 存储一个或多个校准调整信号; 禁用离线校准模式; 应用通信信号; 以及基于所存储的一个或多个校准调整信号来调整通信信号。
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9.发明授权Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system 有权用于在通信系统中校准增益和/或相位不平衡和/或DC偏移的装置和方法公开(公告)号：US07620373B2
公开(公告)日：2009-11-17
申请号：US11590278
申请日：2006-10-30
CPC分类号： H04B17/14 , H04B7/08 , H04B17/101 , H04B17/104
摘要： A radio frequency transceiver for off-line transmit and receive calibrations includes: a transmit pre-distortion module configured to receive a transmit calibration signal during a transmit calibration mode, a transmit communication signal during a transmit communication operation mode, and one or more transmit calibration adjustment signals; a transmit channel frequency converter; and a transmit calibration module configured to provide the one or more transmit calibration adjustment signals and the transmit calibration signal to the transmit pre-distortion module. It may also include a receive channel frequency converter; a receive pre-distortion module configured to receive a receive calibration signal during the receive calibration mode, a receive communication signal during a receive communication operation mode, and one or more receive calibration adjustment signals; and a receive calibration module configured to provide the one or more receive calibration adjustment signals to the receive pre-distortion module and a receive calibration signal to the transmit pre-distortion module.
摘要翻译： 用于离线发射和接收校准的射频收发器包括：发射预失真模块，被配置为在发射校准模式期间接收发射校准信号，在发射通信操作模式期间接收发射校准信号，以及一个或多个发射校准 调整信号; 发射信道变频器; 以及发射校准模块，被配置为将所述一个或多个发射校准调整信号和所述发射校准信号提供给所述发射预失真模块。 它还可以包括接收频道变频器; 接收预失真模块，被配置为在接收校准模式期间接收接收校准信号，接收通信操作模式期间的接收通信信号以及一个或多个接收校准调整信号; 以及接收校准模块，其被配置为向所述接收预失真模块提供所述一个或多个接收校准调整信号，以及向所述发射预失真模块提供接收校准信号。
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公开(公告)号：US20080152047A1
公开(公告)日：2008-06-26
申请号：US11644949
申请日：2006-12-26
申请人： David A. Rowe
发明人： David A. Rowe
IPC分类号： H03D1/00
摘要： A channelization filter communication system comprises: a channelization filtering system, a calibration unit, amplifiers, communication channel frequency converters and a baseband processor. The channelization filtering system includes a selector input configured to receive a communication channel filter selector signal and selectable communication channel filter elements. The selectable communication channel filter elements include one or more resistors formed of a first resistor type and one or more capacitors formed of a first capacitor type. The calibration unit includes a calibration signal generator configured to provide a calibration signal and a frequency measurement unit. The calibration signal generator includes one or more resistors formed of the same first resistor type and one or more capacitors formed of the same first capacitor type. The frequency measurement unit includes a first input configured to receive the calibration signal and an output configured to provide information representing the frequency of the calibration signal.
摘要翻译： 信道化滤波器通信系统包括：信道化滤波系统，校准单元，放大器，通信信道频率转换器和基带处理器。 信道化滤波系统包括被配置为接收通信信道滤波器选择器信号和可选择的通信信道滤波器元件的选择器输入。 可选择的通信信道滤波器元件包括由第一电阻器类型和由第一电容器类型形成的一个或多个电容器形成的一个或多个电阻器。 校准单元包括被配置为提供校准信号和频率测量单元的校准信号发生器。 校准信号发生器包括由相同的第一电阻器类型和由相同的第一电容器类型形成的一个或多个电容器形成的一个或多个电阻器。 频率测量单元包括被配置为接收校准信号的第一输入和被配置为提供表示校准信号的频率的信息的输出。
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