Digital wideband closed loop phase modulator with modulation gain calibration
    1.
    发明授权
    Digital wideband closed loop phase modulator with modulation gain calibration 有权
    带调制增益校准的数字宽带闭环相位调制器

    公开(公告)号:US09225562B2

    公开(公告)日:2015-12-29

    申请号:US13405583

    申请日:2012-02-27

    IPC分类号: H04L27/12 H04L25/03 H04L27/20

    摘要: One embodiment of the present invention relates to a modulation system having a phase locked loop and an adaptive control. The phased lock loop is configured to receive an input signal and an adaptive signal. The input signal is an unmodulated signal, such as a phase component or phase signal. The phase locked loop is also configured to provide an error signal and an output signal. The error signal indicates one or more modulation errors. The output signal is a modulated version of the input signal that has been corrected using the adaptive signal to mitigate the one or more modulation errors.

    摘要翻译: 本发明的一个实施例涉及一种具有锁相环和自适应控制的调制系统。 相位锁定环被配置为接收输入信号和自适应信号。 输入信号是未调制信号,例如相位分量或相位信号。 锁相环也被配置为提供误差信号和输出信号。 误差信号表示一个或多个调制误差。 输出信号是使用自适应信号校正的输入信号的调制版本,以减轻一个或多个调制误差。

    Estimation and compensation of oscillator nonlinearities
    2.
    发明授权
    Estimation and compensation of oscillator nonlinearities 有权
    振荡器非线性的估计和补偿

    公开(公告)号:US08098104B2

    公开(公告)日:2012-01-17

    申请号:US12578105

    申请日:2009-10-13

    IPC分类号: G01R23/00 H03L7/00

    摘要: A device may include an oscillator circuit, a control circuit, a frequency detector circuit, and a processor circuit. The oscillator circuit may include a frequency control input to output an oscillator signal. The frequency of the oscillator signal depends on an input signal applied to the frequency control input. The control circuit is configured to apply a first input signal value, a second input signal value, and a third input signal value to the frequency control input. The frequency detector circuit is configured to detect the first frequency value of the oscillator signal when the first input signal value is applied to the frequency control input, a second frequency value of the oscillator signal when the second input signal value is applied to the frequency control input, and a third frequency value of the oscillator signal when the third input signal value is applied to the frequency control input.

    摘要翻译: 设备可以包括振荡器电路,控制电路,频率检测器电路和处理器电路。 振荡器电路可以包括用于输出振荡器信号的频率控制输入。 振荡器信号的频率取决于施加到频率控制输入的输入信号。 控制电路被配置为向频率控制输入施加第一输入信号值,第二输入信号值和第三输入信号值。 频率检测器电路被配置为当第一输入信号值被施加到频率控制输入时检测振荡器信号的第一频率值,当第二输入信号值被施加到频率控制时,振荡器信号的第二频率值 输入和第三频率值,当第三输入信号值被施加到频率控制输入时。

    DIGITAL WIDEBAND CLOSED LOOP PHASE MODULATOR WITH MODULATION GAIN CALIBRATION
    3.
    发明申请
    DIGITAL WIDEBAND CLOSED LOOP PHASE MODULATOR WITH MODULATION GAIN CALIBRATION 有权
    数字宽带闭环相位调制器,具有调制增益校准

    公开(公告)号:US20130223564A1

    公开(公告)日:2013-08-29

    申请号:US13405583

    申请日:2012-02-27

    IPC分类号: H04L27/20

    摘要: One embodiment of the present invention relates to a modulation system having a phase locked loop and an adaptive control. The phased lock loop is configured to receive an input signal and an adaptive signal. The input signal is an unmodulated signal, such as a phase component or phase signal. The phase locked loop is also configured to provide an error signal and an output signal. The error signal indicates one or more modulation errors. The output signal is a modulated version of the input signal that has been corrected using the adaptive signal to mitigate the one or more modulation errors.

    摘要翻译: 本发明的一个实施例涉及一种具有锁相环和自适应控制的调制系统。 相位锁定环被配置为接收输入信号和自适应信号。 输入信号是未调制信号,例如相位分量或相位信号。 锁相环也被配置为提供误差信号和输出信号。 误差信号表示一个或多个调制误差。 输出信号是使用自适应信号校正的输入信号的调制版本,以减轻一个或多个调制误差。

    Phase Locked Loop, Transceiver Device and Method for Generating an Oscillator Signal
    5.
    发明申请
    Phase Locked Loop, Transceiver Device and Method for Generating an Oscillator Signal 有权
    锁相环,收发器装置和产生振荡器信号的方法

    公开(公告)号:US20080106341A1

    公开(公告)日:2008-05-08

    申请号:US11925379

    申请日:2007-10-26

    IPC分类号: H03L7/085 H03L7/08

    CPC分类号: H03L7/093 H03L7/18

    摘要: A phase locked loop has a controlled oscillator for outputting an oscillator signal depending on a control signal. A comparator generates a comparison result from a comparison between a reference frequency signal and a feedback signal derived from the oscillator signal. The phase locked loop also has a filter block for filtering the comparison result and for deriving the control signal from the comparison result, where the filter block has a loop filter and a rejection filter for the frequency-selective attenuation of at least one first interference frequency in the comparison result.

    摘要翻译: 锁相环具有受控振荡器,用于根据控制信号输出振荡器信号。 比较器从参考频率信号和从振荡器信号导出的反馈信号之间的比较产生比较结果。 锁相环还具有用于对比较结果进行滤波和从比较结果导出控制信号的滤波器块,其中滤波器块具有环路滤波器和用于至少一个第一干扰频率的频率选择衰减的抑制滤波器 在比较结果中。

    Phase locked loop, transceiver device and method for generating an oscillator signal
    8.
    再颁专利
    Phase locked loop, transceiver device and method for generating an oscillator signal 有权
    锁相环,收发器装置和用于产生振荡器信号的方法

    公开(公告)号:USRE44879E1

    公开(公告)日:2014-05-06

    申请号:US13440521

    申请日:2012-04-05

    IPC分类号: H03L7/00

    CPC分类号: H03L7/093 H03L7/18

    摘要: A phase locked loop has a controlled oscillator for outputting an oscillator signal depending on a control signal. A comparator generates a comparison result from a comparison between a reference frequency signal and a feedback signal derived from the oscillator signal. The phase locked loop also has a filter block for filtering the comparison result and for deriving the control signal from the comparison result, where the filter block has a loop filter and a rejection filter for the frequency-selective attenuation of at least one first interference frequency in the comparison result.

    摘要翻译: 锁相环具有受控振荡器,用于根据控制信号输出振荡器信号。 比较器从参考频率信号和从振荡器信号导出的反馈信号之间的比较产生比较结果。 锁相环还具有用于对比较结果进行滤波和从比较结果导出控制信号的滤波器块,其中滤波器块具有环路滤波器和用于至少一个第一干扰频率的频率选择衰减的抑制滤波器 在比较结果中。

    Phase locked loop, transceiver device and method for generating an oscillator signal
    9.
    发明授权
    Phase locked loop, transceiver device and method for generating an oscillator signal 有权
    锁相环,收发器装置和用于产生振荡器信号的方法

    公开(公告)号:US07692498B2

    公开(公告)日:2010-04-06

    申请号:US11925379

    申请日:2007-10-26

    IPC分类号: H03L7/00

    CPC分类号: H03L7/093 H03L7/18

    摘要: A phase locked loop has a controlled oscillator for outputting an oscillator signal depending on a control signal. A comparator generates a comparison result from a comparison between a reference frequency signal and a feedback signal derived from the oscillator signal. The phase locked loop also has a filter block for filtering the comparison result and for deriving the control signal from the comparison result, where the filter block has a loop filter and a rejection filter for the frequency-selective attenuation of at least one first interference frequency in the comparison result.

    摘要翻译: 锁相环具有受控振荡器,用于根据控制信号输出振荡器信号。 比较器从参考频率信号和从振荡器信号导出的反馈信号之间的比较产生比较结果。 锁相环还具有用于对比较结果进行滤波和从比较结果导出控制信号的滤波器块,其中滤波器块具有环路滤波器和用于至少一个第一干扰频率的频率选择衰减的抑制滤波器 在比较结果中。

    Bitwidth reduction in loop filters used for digital PLLS
    10.
    发明授权
    Bitwidth reduction in loop filters used for digital PLLS 失效
    用于数字PLLS的环路滤波器的带宽减少

    公开(公告)号:US08598929B1

    公开(公告)日:2013-12-03

    申请号:US13664536

    申请日:2012-10-31

    IPC分类号: H03L7/06

    摘要: The disclosed invention relates to a digital phase locked loop having a switchable digital loop filter configured to selectively operate at different levels of resolution. The digital phase locked loop has a phase frequency detector that determines a phase difference between a reference signal and a feedback signal and to convert the phase difference to a digital word. A digital loop filter filters the digital word to generate a control word. A bit shift network modifies the digital word in a manner that switches the resolution of the digital loop filter between two or more distinct resolution states that comprise a bit sequence located at different positions in the digital word. The two or more distinct resolution states allow the digital loop filter to provide a low resolution (high amplitude) for a settling state of operation and a high resolution (low amplitude) for a locked state of operation.

    摘要翻译: 所公开的本发明涉及一种具有可切换数字环路滤波器的数字锁相环,其被配置为选择性地以不同的分辨率水平进行操作。 数字锁相环具有相位频率检测器,其确定参考信号和反馈信号之间的相位差,并将相位差转换为数字字。 数字环路滤波器对数字字进行滤波以产生控制字。 位移网络以使数字环路滤波器的分辨率在两个或多个不同分辨率状态之间切换的方式修改数字字,该状态包括位于数字字中的不同位置的位序列。 两个或更多个不同的分辨率状态允许数字环路滤波器为操作的建立状态提供低分辨率(高幅度),并且对于锁定操作状态提供高分辨率(低幅度)。