公开(公告)号：US08055233B2

公开(公告)日：2011-11-08

申请号：US12108509

申请日：2008-04-24

申请人： Hong Yean Hsieh ,  Chao-Cheng Lee ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chao-Cheng Lee ,  Chia-Liang Lin

IPC分类号： H04B1/18

CPC分类号： H03D7/1441 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/1466 ,  H03D2200/0088

摘要： A high linearity mixer circuit includes a commutation network comprising four switches to provide an electrical coupling between a first pair of circuit nodes and a second pair of circuit nodes, whereas the coupling has two states and is controlled by a pair of complementary logical signals. The mixer circuit further comprises a first pair of current-sourcing devices coupled to the first pair of circuit nodes and a second pair of current-sourcing devices coupled to the second pair of circuit nodes. The mixer circuit further includes a pair of capacitors to provide AC coupling, either between the first pair of circuit nodes and a first external circuit, or between the second pair of circuit nodes and a second external circuit.

摘要翻译： 高线性混频器电路包括一个包括四个开关的换向网络，以在第一对电路节点和第二对​​电路节点之间提供电耦合，而耦合具有两个状态并由一对互补逻辑信号控制。 混频器电路还包括耦合到第一对电路节点的第一对电流源装置和耦合到第二对电路节点的第二对电流源装置。 混频器电路还包括一对电容器，用于在第一对电路节点和第一外部电路之间或第二对电路节点之间提供AC耦合，以及第二外部电路。

公开(公告)号：US20080268805A1

公开(公告)日：2008-10-30

申请号：US12108509

申请日：2008-04-24

申请人： Hong Yean Hsieh ,  Chao-Cheng Lee ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chao-Cheng Lee ,  Chia-Liang Lin

IPC分类号： H04B1/16

CPC分类号： H03D7/1441 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/1466 ,  H03D2200/0088

摘要： A high linearity mixer circuit includes a commutation network comprising four switches to provide an electrical coupling between a first pair of circuit nodes and a second pair of circuit nodes, whereas the coupling has two states and is controlled by a pair of complementary logical signals. The mixer circuit further comprises a first pair of current-sourcing devices coupled to the first pair of circuit nodes and a second pair of current-sourcing devices coupled to the second pair of circuit nodes. The mixer circuit further includes a pair of capacitors to provide AC coupling, either between the first pair of circuit nodes and a first external circuit, or between the second pair of circuit nodes and a second external circuit.

摘要翻译： 高线性混频器电路包括一个包括四个开关的换向网络，以在第一对电路节点和第二对​​电路节点之间提供电耦合，而耦合具有两个状态并由一对互补逻辑信号控制。 混频器电路还包括耦合到第一对电路节点的第一对电流源装置和耦合到第二对电路节点的第二对电流源装置。 混频器电路还包括一对电容器，用于在第一对电路节点和第一外部电路之间或第二对电路节点之间提供AC耦合，以及第二外部电路。

公开(公告)号：US20070069931A1

公开(公告)日：2007-03-29

申请号：US11342119

申请日：2006-01-27

申请人： Hong-Yean Hsieh ,  Chia-Liang Lin

发明人： Hong-Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H03M3/00

CPC分类号： H03M3/38 ,  H03M3/458

摘要： A self-calibrating continuous-time delta-sigma modulator determines whether time constants of its internal integrators are too large or too small by injecting a calibrating sequence into the modulator and examining a correlation between the calibrating sequence and a modulator output sequence. Then the time constants of the internal integrators are adjusted accordingly. In one embodiment, the correlation is exploited based on matching a noise transfer function of the modulator using an adaptive filter based on a least mean square (LMS) algorithm.

摘要翻译： 自校准连续时间Δ-Σ调制器通过向调制器中注入校准序列并检查校准序列与调制器输出序列之间的相关性来确定其内部积分器的时间常数是否过大或过小。 然后调整内部积分器的时间常数。 在一个实施例中，基于使用基于最小均方（LMS）算法的自适应滤波器来匹配调制器的噪声传递函数来利用相关性。

公开(公告)号：US07663437B2

公开(公告)日：2010-02-16

申请号：US12101203

申请日：2008-04-11

申请人： Hong Yean Hsieh ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H03F3/45

CPC分类号： H03F1/26 ,  H03F3/45192 ,  H03F2203/45646

摘要： A low flicker noise operational amplifier comprises two circuit branches of the same topology and a plurality of current source pairs. For each current source pair, the two current sources are commutatively steered into the two circuit branches via two sets of differential pair in a manner controlled by a pair of complementary logical signal.

摘要翻译： 低闪烁噪声运算放大器包括相同拓扑的两个电路分支和多个电流源对。 对于每个电流源对，两个电流源以由一对互补逻辑信号控制的方式经由两组差分对被相互导向到两个电路分支中。

公开(公告)号：US20080252373A1

公开(公告)日：2008-10-16

申请号：US12101203

申请日：2008-04-11

申请人： Hong Yean Hsieh ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H03F3/45

CPC分类号： H03F1/26 ,  H03F3/45192 ,  H03F2203/45646

摘要： A low flicker noise operational amplifier comprises two circuit branches of the same topology and a plurality of current source pairs. For each current source pair, the two current sources are commutatively steered into the two circuit branches via two sets of differential pair in a manner controlled by a pair of complementary logical signal.

摘要翻译： 低闪烁噪声运算放大器包括相同拓扑的两个电路分支和多个电流源对。 对于每个电流源对，两个电流源以由一对互补逻辑信号控制的方式经由两组差分对被相互导向到两个电路分支中。

公开(公告)号：US20070008200A1

公开(公告)日：2007-01-11

申请号：US11389990

申请日：2006-03-27

申请人： Hong-Yean Hsieh ,  Chia-Liang Lin

发明人： Hong-Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H03M1/10

CPC分类号： H03M3/38

摘要： A primary delta-sigma modulator converts a continuous-time input signal into a discrete-time output sequence. A calibration circuit comprising an auxiliary delta-sigma modulator estimates percentage error in an integrator time constant and adjusts the time constant of at least one integrator in the primary delta-sigma modulator accordingly. The auxiliary delta-sigma modulator and the primary delta-sigma modulator use integrators with substantially similar circuit designs. The percentage error in the time constant of the integrator in the auxiliary delta-sigma modulator, and correspondingly the percentage error in time constant of the integrator in the primary delta-sigma modulator, is estimated by injecting a calibrating sequence into the auxiliary delta-sigma modulator and examining a correlation between an error sequence and an output sequence of the auxiliary delta-sigma modulator.

摘要翻译： 原始Δ-Σ调制器将连续时间输入信号转换成离散时间输出序列。 包括辅助Δ-Σ调制器的校准电路估计积分器时间常数中的百分比误差，并且相应地调整主Δ-Σ调制器中的至少一个积分器的时间常数。 辅助Δ-Σ调制器和主Δ-Σ调制器使用具有基本相似的电路设计的积分器。 辅助Δ-Σ调制器中积分器的时间常数百分比误差，以及相应的初级Δ-Σ调制器中积分器的时间常数百分比误差，通过将校准序列注入辅助Δ-Σ 调制器并检查辅助Δ-Σ调制器的误差序列和输出序列之间的相关性。

公开(公告)号：US08223819B2

公开(公告)日：2012-07-17

申请号：US11548250

申请日：2006-10-10

申请人： Hong-Yean Hsieh ,  Chia-Liang Lin

发明人： Hong-Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H04B1/00

CPC分类号： G06F7/582

摘要： Systems and methods for generating spectrally shaped pseudo random noise sequences are described, which may include generating an L-level PN sequence, where L is an integer greater than 1; up-sampling the PN sequence by a factor of M, where M is an integer greater than 1; and filtering the up-sampled PN sequence using a finite impulse response (FIR) filter of length M, where the coefficients of the FIR filter are chosen from a set of pre-determined values.

摘要翻译： 描述了用于产生频谱形状的伪随机噪声序列的系统和方法，其可以包括生成L级PN序列，其中L是大于1的整数; 以PN为因子对PN序列进行上采样，其中M为大于1的整数; 并使用长度为M的有限脉冲响应（FIR）滤波器对上采样的PN序列进行滤波，其中FIR滤波器的系数从一组预定值中选择。

公开(公告)号：US08160516B2

公开(公告)日：2012-04-17

申请号：US12179540

申请日：2008-07-24

申请人： Hong Yean Hsieh ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H04B1/04

CPC分类号： H03D7/1441 ,  H03D7/1433 ,  H03D7/1458

摘要： A low flicker noise active mixer comprises a trans-conductance section, a switching quad, and a load section. The trans-conductance section converts a voltage signal pair into a first current signal pair. The switching quad converts the first current signal pair into a second signal pair in a manner controlled by a LO (local oscillator) signal pair. The load section provides a loading to the second current signal pair using a pair of commutative active loads to convert the second current signal pair into an output voltage signal pair.

摘要翻译： 低闪烁噪声主动混频器包括跨导部分，开关四极和负载部分。 跨导部分将电压信号对转换成第一电流信号对。 开关四极管以由LO（本地振荡器）信号对控制的方式将第一电流信号对转换为第二信号对。 负载部分使用一对可交换有功负载来向第二电流信号对提供负载，以将第二电流信号对转换成输出电压信号对。

公开(公告)号：US20110182390A1

公开(公告)日：2011-07-28

申请号：US12691847

申请日：2010-01-22

申请人： Chia-Liang Lin ,  Gerchih Chou ,  Hong-Yean Hsieh

发明人： Chia-Liang Lin ,  Gerchih Chou ,  Hong-Yean Hsieh

IPC分类号： H04L7/00

CPC分类号： H03L7/0807 ,  H03L1/022 ,  H03L7/08

摘要： A representative method of serial link transceiver without external reference clock is disclosed. The method includes: receiving an incoming signal; generating a local timing under control of a control code; generating a temperature sensor code by sensing a local temperature; generating a logical signal by detecting a presence of the incoming signal; adjusting the control code in a closed loop manner to make the local timing match that of the incoming signal and recording the control code and a value of the temperature sensor code as part of a template when the logical signal is asserted; and synthesizing the control code in accordance with the template when the logical signal is not asserted.

摘要翻译： 公开了一种具有无外部参考时钟的串行链路收发器的代表性方法。 该方法包括：接收输入信号; 在控制码的控制下产生本地时序; 通过感测局部温度产生温度传感器代码; 通过检测输入信号的存在来产生逻辑信号; 以闭环方式调节控制码，使本地时序与输入信号相匹配，并在逻辑信号被断言时记录控制码和温度传感器代码的值作为模板的一部分; 以及当所述逻辑信号不被断言时，根据所述模板合成所述控制码。

公开(公告)号：US20090029668A1

公开(公告)日：2009-01-29

申请号：US12179540

申请日：2008-07-24

申请人： Hong Yean Hsieh ,  Chia-Liang Lin

发明人： Hong Yean Hsieh ,  Chia-Liang Lin

IPC分类号： H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1433 ,  H03D7/1458

摘要： A low flicker noise active mixer comprises a trans-conductance section, a switching quad, and a load section. The trans-conductance section converts a voltage signal pair into a first current signal pair. The switching quad converts the first current signal pair into a second signal pair in a manner controlled by a LO (local oscillator) signal pair. The load section provides a loading to the second current signal pair using a pair of commutative active loads to convert the second current signal pair into an output voltage signal pair.

摘要翻译： 低闪烁噪声主动混频器包括跨导部分，开关四极和负载部分。 跨导部分将电压信号对转换成第一电流信号对。 开关四极管以由LO（本地振荡器）信号对控制的方式将第一电流信号对转换为第二信号对。 负载部分使用一对可交换有功负载来向第二电流信号对提供负载，以将第二电流信号对转换成输出电压信号对。