公开(公告)号：US20080116991A1

公开(公告)日：2008-05-22

申请号：US11985812

申请日：2007-11-16

Applicant: Eric Gagnon ,  Chun-Yun Jian

Inventor： Eric Gagnon ,  Chun-Yun Jian

IPC: H03H7/38 ,  H03H3/00 ,  H04B1/38

CPC classification number: H03H9/0542 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03H9/0552 ,  Y10T29/49016 ,  Y10T29/49117 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A filter package is provided with a support structure, a filter device having terminals, impedance matching circuits formed on the support structure and electrically connected to at least some of the terminals of the filter device, and at least one electrical ground structure electrically connected to the impedance matching circuits. Moreover, the filter package has an outer housing to contain the support structure, filter device, impedance matching circuits, and at least one ground structure.

Abstract translation: 滤波器封装设置有支撑结构，具有端子的滤波器装置，形成在支撑结构上并电连接到过滤器装置的至少一些端子的阻抗匹配电路，以及至少一个电接地结构，电连接到 阻抗匹配电路。 此外，过滤器封装具有外壳，以容纳支撑结构，过滤器装置，阻抗匹配电路和至少一个接地结构。

公开(公告)号：US06711230B1

公开(公告)日：2004-03-23

申请号：US10255835

申请日：2002-09-27

Applicant: Charles Nicholls ,  Gregory Carleton ,  Philippe Wu ,  Yu Yang ,  Eric Gagnon

Inventor： Charles Nicholls ,  Gregory Carleton ,  Philippe Wu ,  Yu Yang ,  Eric Gagnon

IPC: H03L706

CPC classification number: H03L7/18 ,  G04G3/00 ,  G04G7/00 ,  G04G7/02 ,  H03L1/026 ,  H03L7/093 ,  H03L7/148

Abstract: An input reference timing signal oscillator of a phase-locked loop has a computer algorithm which adaptively models the multiple frequencies of an oscillator following a training period. The oscillator is part of a phase-locked loop and the oscillation frequency thereof is controlled in response to the phase detector output. The computer algorithm processes the control signal applied to the oscillator. The computer algorithm updates the characteristics of the model relating to the aging and temperature of the oscillator, using for example, a Kalman filter as an adaptive filter. By the algorithm, the subsequent model predicts the future frequency state of the oscillator on which it was trained. The predicted frequency of the model functions as a reference to correct the frequency of the oscillator in the event that no input reference timing signal is available. With the model updating algorithm, oscillators of low stability performance may be used as cellular base station reference oscillator.

Abstract translation: 锁相环的输入参考定时信号振荡器具有在训练周期之后对振荡器的多个频率进行自适应建模的计算机算法。 振荡器是锁相环的一部分，并且其振荡频率响应于相位检测器输出而被控制。 计算机算法处理施​​加到振荡器的控制信号。 计算机算法使用例如卡尔曼滤波器作为自适应滤波器来更新与振荡器的老化和温度有关的模型的特性。 通过该算法，随后的模型预测了被训练的振荡器的未来频率状态。 在没有输入参考定时信号可用的情况下，模型的预测频率用作校正振荡器频率的参考。 利用模型更新算法，低稳定性能的振荡器可以用作蜂窝基站参考振荡器。

公开(公告)号：US06417712B1

公开(公告)日：2002-07-09

申请号：US09669874

申请日：2000-09-27

Applicant: R. Douglas Beards ,  John J. Nisbet ,  Qi Tang ,  Eric Gagnon

Inventor： R. Douglas Beards ,  John J. Nisbet ,  Qi Tang ,  Eric Gagnon

IPC: H03K513

CPC classification number: H03H11/22 ,  H03C3/40 ,  H03H11/24 ,  H03K2005/00169 ,  H03K2005/00176 ,  H03K2005/00286

Abstract: Sine and cosine weighting functions are applied to phase quadrature versions of an input signal to be phase shifted, and the weighted results are summed to provide a phase shifted output signal with an amplitude which is relatively independent of the phase shift. A weighting circuit comprises two translinear sine shaping circuits having differential current outputs providing weighting signals from input currents supplied thereto, the input currents of the two sine shaping circuits being offset relative to one another so that the differential current outputs of the two sine shaping circuits are provided in accordance with a sine function and a cosine function, respectively, of a control signal.

Abstract translation: 正弦和余弦加权函数被应用于要相移的输入信号的相位正交版本，并且将加权结果相加以提供具有相对独立于相移的幅度的相移输出信号。 一个加权电路包括两个具有差分电流输出的交叉线性正弦整形电路，该电流输出从提供给其的输入电流提供加权信号，两个正弦整形电路的输入电流相对于彼此偏移，使得两个正弦整形电路的差分电流输出为 分别根据控制信号的正弦函数和余弦函数提供。