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公开(公告)号：US08953581B1
公开(公告)日：2015-02-10
申请号：US12778624
申请日：2010-05-12
申请人： Gordon Alexander Charles , Lance Robert Doherty , Thor Nelson Juneau , Mark Alan Lemkin , Jonathan Simon , Zhenqiang Ye
发明人： Gordon Alexander Charles , Lance Robert Doherty , Thor Nelson Juneau , Mark Alan Lemkin , Jonathan Simon , Zhenqiang Ye
CPC分类号： H04W56/001 , H04J3/0652 , H04J3/0658 , H04L7/04 , H04L7/048 , H04W56/003
摘要： A system for synchronizing nodes in a wireless network comprises a first node and a second node. The first node comprising a transmitter, a receiver, and a first time keeper. The second node comprising a transmitter, a receiver, a second time keeper, a timing error measurer for making a timing error measurement between the first time keeper and the second time keeper. The second timekeeper is adjusted to target minimizing the timing error measurement.
摘要翻译： 用于同步无线网络中的节点的系统包括第一节点和第二节点。 第一节点包括发射器，接收器和第一时间保持器。 第二节点包括发射器，接收器，第二时间保持器，用于在第一时间保持器和第二时间保持器之间进行定时误差测量的定时误差测量器。 第二个计时器被调整为目标，以最小化定时误差测量。
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公开(公告)号：US08222965B1
公开(公告)日：2012-07-17
申请号：US12877732
申请日：2010-09-08
CPC分类号： H03C3/0916 , H03C3/0941 , H03C3/0958 , H03C3/0975 , H03C2200/0008
摘要： A modulator for modulating a radio frequency signal comprises a voltage controlled oscillator, a first feedback path, and a second feedback path. The first feedback path is coupled between a detector output and the voltage controlled oscillator. The second feedback path is coupled between the detector output and the voltage controlled oscillator. The detector is coupled to a divided down output of the voltage controlled oscillator and a reference clock.
摘要翻译： 用于调制射频信号的调制器包括压控振荡器，第一反馈路径和第二反馈路径。 第一反馈路径耦合在检测器输出和压控振荡器之间。 第二反馈路径耦合在检测器输出和压控振荡器之间。 检测器耦合到压控振荡器的分频输出和参考时钟。
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公开(公告)号：US08558728B1
公开(公告)日：2013-10-15
申请号：US13559909
申请日：2012-07-27
IPC分类号： H03M1/50
CPC分类号： H03L7/08 , G01R31/31709 , H03L7/18
摘要： Phase noise in a first clock signal is measured using a time to digital converter (TDC) by determining variations in the phase delay between the first clock signal and a second clock signal. The TDC can include first and second series interconnections of delay elements, first and second sets of latches, and processing circuitry coupled to the latches and configured to determine the phase delay. The TDC can include a series interconnection of delay elements, latches, and circuitry configured to selectively adjust the control signal connected to the delay elements based on the output of the latches. The phase noise measurement can be used in a sampling circuit, so as to produce a second data signal from a first data signal based on the first clock signal and the measured phase noise.
摘要翻译： 通过确定第一时钟信号和第二时钟信号之间的相位延迟的变化，使用时间数字转换器（TDC）测量第一时钟信号中的相位噪声。 TDC可以包括延迟元件的第一和第二串联互连，第一和第二锁存器组以及耦合到锁存器并被配置为确定相位延迟的处理电路。 TDC可以包括延迟元件，锁存器和配置为基于锁存器的输出选择性地调整连接到延迟元件的控制信号的电路的串联互连。 可以在采样电路中使用相位噪声测量，以便基于第一时钟信号和所测量的相位噪声从第一数据信号产生第二数据信号。
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公开(公告)号：US09246436B2
公开(公告)日：2016-01-26
申请号：US13550033
申请日：2012-07-16
CPC分类号： H04B1/18 , H03D7/1441 , H03D7/1466 , H04B1/10 , H04B1/30
摘要： A method and device for receiving a wireless signal is provided. The device includes a passive mixer having a first input node, a second input node, and at least one output node. An oscillator is coupled to the first input node of the mixer. The output of a buffer is coupled to the second input node of the mixer. An antenna is operatively coupled to the input node of the buffer. The buffer is configured to provide isolation from the mixer.
摘要翻译： 提供了一种用于接收无线信号的方法和装置。 该设备包括具有第一输入节点，第二输入节点和至少一个输出节点的无源混频器。 振荡器耦合到混频器的第一输入节点。 缓冲器的输出耦合到混频器的第二输入节点。 天线可操作地耦合到缓冲器的输入节点。 缓冲器被配置为提供与混合器的隔离。
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公开(公告)号：US08699406B1
公开(公告)日：2014-04-15
申请号：US12778617
申请日：2010-05-12
申请人： Gordon Alexander Charles , Lance Robert Doherty , Thor Nelson Juneau , Mark Alan Lemkin , Jonathan Simon , Zhenqiang Ye
发明人： Gordon Alexander Charles , Lance Robert Doherty , Thor Nelson Juneau , Mark Alan Lemkin , Jonathan Simon , Zhenqiang Ye
CPC分类号： H04W56/001 , H04J3/0652 , H04J3/0658 , H04L7/04 , H04L7/048 , H04W56/003
摘要： A system for maintaining synchronization of nodes in a wireless network comprises a child node and a parent node. The child node comprising a transmitter, a receiver, and a first time keeper. The parent node comprising a transmitter, a receiver, a second time keeper. The parent node receiver is active for a guardband and wherein the guardband is adjusted to maintain synchronization of the parent node with the child node.
摘要翻译： 用于维持无线网络中节点同步的系统包括子节点和父节点。 子节点包括发射器，接收器和第一时间保持器。 父节点包括发射机，接收机，第二时间守护者。 父节点接收器对于保护带是有效的，并且其中调整保护带以保持父节点与子节点的同步。
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公开(公告)号：US20140018028A1
公开(公告)日：2014-01-16
申请号：US13550033
申请日：2012-07-16
IPC分类号： H04B1/18
CPC分类号： H04B1/18 , H03D7/1441 , H03D7/1466 , H04B1/10 , H04B1/30
摘要： A method and device for receiving a wireless signal is provided. The device includes a passive mixer having a first input node, a second input node, and at least one output node. An oscillator is coupled to the first input node of the mixer. The output of a buffer is coupled to the second input node of the mixer. An antenna is operatively coupled to the input node of the buffer. The buffer is configured to provide isolation from the mixer.
摘要翻译： 提供了一种用于接收无线信号的方法和装置。 该设备包括具有第一输入节点，第二输入节点和至少一个输出节点的无源混频器。 振荡器耦合到混频器的第一输入节点。 缓冲器的输出耦合到混频器的第二输入节点。 天线可操作地耦合到缓冲器的输入节点。 缓冲器被配置为提供与混合器的隔离。
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