公开(公告)号：US20120275122A1

公开(公告)日：2012-11-01

申请号：US13096808

申请日：2011-04-28

申请人： Gregory E. Howard ,  Amneh Akour ,  Yanli Fan ,  Karlheinz Muth ,  Mark W. Morgan

发明人： Gregory E. Howard ,  Amneh Akour ,  Yanli Fan ,  Karlheinz Muth ,  Mark W. Morgan

IPC分类号： H05K1/18 ,  H01L25/00 ,  H01B11/04

CPC分类号： H01P1/184 ,  H01L23/66 ,  H01L2223/6638 ,  H01L2924/0002 ,  H01P3/026 ,  H05K1/0245 ,  H05K2201/09245 ,  H01L2924/00

摘要： An apparatus is provided. The apparatus generally comprises a plurality of pairs of differential transmission lines. The plurality of pairs of differential transmission lines includes a set of pairs of differential transmission lines with each pair of differential transmission lines from the set of pairs of differential transmission lines including at least one twist to alternate current direction. Also, the plurality of differential transmission lines are arranged such that alternating current directions substantially eliminate cross-talk across the plurality of pairs of differential transmission lines.

摘要翻译： 提供了一种装置。 该装置通常包括多对差动传输线。 多对差动传输线包括一组差动传输线，其中每对差动传输线对包括至少一个扭转到交替电流方向的差动传输线对。 此外，多个差动传输线被布置成使得交流方向基本上消除了多对差动传输线之间的串扰。

公开(公告)号：US07012467B2

公开(公告)日：2006-03-14

申请号：US10796954

申请日：2004-03-10

申请人： Mark W. Morgan ,  Yanli Fan

发明人： Mark W. Morgan ,  Yanli Fan

IPC分类号： H03F3/45

CPC分类号： H03F3/45085 ,  H03F3/45484

摘要： An apparatus for compensating operating current in an amplifier device when supply voltage to the amplifier device decreases below a predetermined value at an input voltage supply locus includes: (a) A first control circuit coupled with the input voltage supply locus. The first control circuit generates an output signal at an output locus when the supply voltage decreases below the predetermined value. (b) A second control circuit coupled with the output locus and coupled with the amplifier device. The second control circuit effects the compensating in response to the output signal.

摘要翻译： 一种用于在放大器装置的电源电压降低到输入电压供应轨迹下的预定值时补偿放大器装置中的工作电流的装置包括：（a）与输入电压供应轨迹相连的第一控制电路。 当电源电压降低到预定值以下时，第一控制电路在输出轨迹处产生输出信号。 （b）与输出轨迹耦合并与放大器装置耦合的第二控制电路。 第二控制电路响应于输出信号而进行补偿。

公开(公告)号：US07893746B1

公开(公告)日：2011-02-22

申请号：US12578895

申请日：2009-10-14

申请人： Yuxiang Zheng ,  Hao Liu ,  Yanli Fan ,  Mark W. Morgan

发明人： Yuxiang Zheng ,  Hao Liu ,  Yanli Fan ,  Mark W. Morgan

IPC分类号： H03H11/26

CPC分类号： H03H11/26 ,  H03K5/151 ,  H03K2005/00045 ,  H04L25/03885 ,  H04L25/14

摘要： For differential signal transmission (especially in high speed applications), intra-pair skew between paths carrying complementary portions of a differential signal can significantly affect performance. Conventional de-skew circuits employ simple filters (i.e., low-pass filters) to operate as delay elements to account for skew; however, these filters can distort the differential signal, which can also adverse affect performance. Here, an all-pass, adjustable delay element and de-skew circuit are provided to allow for compensation of skew without degrading the differential signal as conventional circuit do and, thus, having better performance characteristics.

摘要翻译： 对于差分信号传输（特别是在高速应用中），承载差分信号互补部分的路径之间的对内偏移可能会显着影响性能。 传统的去偏移电路采用简单的滤波器（即，低通滤波器）作为延迟元件来操作以解决偏斜; 然而，这些滤波器可以使差分信号失真，这也可能不利地影响性能。 这里，提供全通可调延迟元件和去偏斜电路，以允许偏差的补偿，而不会像传统电路那样降低差分信号，并因此具有更好的性能特性。

公开(公告)号：US20100090772A1

公开(公告)日：2010-04-15

申请号：US12250340

申请日：2008-10-13

申请人： Yaqi Hu ,  Yanli Fan ,  Mark W. Morgan ,  Huawen Jin

发明人： Yaqi Hu ,  Yanli Fan ,  Mark W. Morgan ,  Huawen Jin

IPC分类号： H03K3/02

CPC分类号： H03K3/0231 ,  H03K3/011

摘要： In the many microelectronics applications, delays present in circuitry can affect both the design and the function of the circuitry. One example of delays impacting the function of a circuit is a relaxation oscillator, where delays present in comparator circuits and latches can cause its frequency to vary beyond desired ranges. Here, a relaxation circuit with delay compensation is described.

摘要翻译： 在许多微电子应用中，电路中存在的延迟会影响电路的设计和功能。 影响电路功能的延迟的一个例子是张弛振荡器，其中存在于比较器电路和锁存器中的延迟可导致其频率变化超出期望的范围。 这里描述具有延迟补偿的弛豫电路。

公开(公告)号：US07570108B2

公开(公告)日：2009-08-04

申请号：US10695604

申请日：2003-10-28

申请人： Mark W. Morgan ,  Yanli Fan ,  Hector Torres

发明人： Mark W. Morgan ,  Yanli Fan ,  Hector Torres

IPC分类号： G06G7/12 ,  G06G7/26

CPC分类号： G05F1/56

摘要： An apparatus for regulating voltage for at least one differential transistor pair having a voltage follower buffer, the voltage follower section having a first voltage-temperature response, includes: (a) a differential amplifier having two input loci and an output locus, a first input locus of the two input loci receiving a reference voltage; (b) a temperature responsive unit coupled between the output locus and ground; and (c) a feedback line coupled between the temperature responsive unit and a second input locus of the two input loci. The temperature responsive unit has a second voltage-temperature response similar to the first voltage-temperature response.

摘要翻译： 一种用于调节具有电压跟随器缓冲器的至少一个差分晶体管对的电压的装置，所述电压跟随器部分具有第一电压 - 温度响应，包括：（a）具有两个输入轨迹和输出轨迹的差分放大器，第一输入 接收参考电压的两个输入轨迹的轨迹; （b）耦合在输出轨迹和地之间的温度响应单元; 和（c）耦合在温度响应单元和两个输入轨迹的第二输入轨迹之间的反馈线。 温度响应单元具有类似于第一电压 - 温度响应的第二电压 - 温度响应。

公开(公告)号：US08324949B2

公开(公告)日：2012-12-04

申请号：US12901313

申请日：2010-10-08

申请人： Alexander Cherkassky ,  David Elwart ,  Huanzhang Huang ,  Li Yang ,  Matt Rowley ,  Mark W. Morgan ,  Yanli Fan ,  Yonghui Tang

发明人： Alexander Cherkassky ,  David Elwart ,  Huanzhang Huang ,  Li Yang ,  Matt Rowley ,  Mark W. Morgan ,  Yanli Fan ,  Yonghui Tang

IPC分类号： H03K3/017

CPC分类号： H03K5/1565 ,  G06F1/10

摘要： Quadrature clocking schemes are widely used in modern communications systems, but often suffer from phase imbalance. Conventional solutions that attempt to address this phase imbalance, however, are generally large and use a substantial amount of power. Here, however, a correction circuit is provided that can locally correct for phase imbalance without the need for bulky and high power consuming circuitry.

摘要翻译： 正交计时方案广泛应用于现代通信系统，但往往遭受相位不平衡。 然而，试图解决这一阶段不平衡的传统解决方案通常很大，并且使用大量的功率。 然而，这里提供了一种校正电路，其可以在不需要庞大和高功耗的电路的情况下局部校正相位不平衡。

公开(公告)号：US08213638B2

公开(公告)日：2012-07-03

申请号：US11708874

申请日：2007-02-20

申请人： Yanli Fan ,  Mark W. Morgan

发明人： Yanli Fan ,  Mark W. Morgan

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04L2025/03375

摘要： Methods and apparatus to provide an equalizer for analog adaptive control are disclosed. An example equalizer described herein includes a high frequency amplifier to receive an input signal and to amplify a high frequency portion of the input signal, a low frequency amplifier to receive the input signal and to amplify a low frequency portion of the input signal, and a weight factor controller to control a gain of the high frequency amplifier and a gain of the low frequency amplifier.

摘要翻译： 公开了提供用于模拟自适应控制的均衡器的方法和装置。 本文所述的示例均衡器包括用于接收输入信号并放大输入信号的高频部分的高频放大器，用于接收输入信号并放大输入信号的低频部分的低频放大器，以及 权重因子控制器来控制高频放大器的增益和低频放大器的增益。

公开(公告)号：US20120086489A1

公开(公告)日：2012-04-12

申请号：US12901313

申请日：2010-10-08

申请人： Alexander Cherkassky ,  David Elwart ,  Huanzhang Huang ,  Li Yang ,  Matt Rowley ,  Mark W. Morgan ,  Yanli Fan ,  Yonghui Tang

发明人： Alexander Cherkassky ,  David Elwart ,  Huanzhang Huang ,  Li Yang ,  Matt Rowley ,  Mark W. Morgan ,  Yanli Fan ,  Yonghui Tang

IPC分类号： H03K3/017

CPC分类号： H03K5/1565 ,  G06F1/10

摘要： Quadrature clocking schemes are widely used in modern communications systems, but often suffer from phase imbalance. Conventional solutions that attempt to address this phase imbalance, however, are generally large and use a substantial amount of power. Here, however, a correction circuit is provided that can locally correct for phase imbalance without the need for bulky and high power consuming circuitry.

摘要翻译： 正交计时方案广泛应用于现代通信系统，但往往遭受相位不平衡。 然而，试图解决这一阶段不平衡的传统解决方案通常很大，并且使用大量的功率。 然而，这里提供了一种校正电路，其可以在不需要庞大和高功耗的电路的情况下局部校正相位不平衡。

公开(公告)号：US08049534B2

公开(公告)日：2011-11-01

申请号：US12705833

申请日：2010-02-15

申请人： Yaqi Hu ,  Yanli Fan ,  Mark W. Morgan

发明人： Yaqi Hu ,  Yanli Fan ,  Mark W. Morgan

IPC分类号： H03F3/45

CPC分类号： H03K19/017518 ,  H04L25/0272

摘要： In bipolar CMOS or BiCMOS process technologies, drivers (such as mixed mode or hybrid mode drivers) using both bipolar and CMOS transistors (i.e., field effect transistors or FETs) may have undesirable properties, such as reduced speed, ringing, latch-up, or lower electrostatic discharge (ESD) performance. Here, a mixed or hybrid mode driver is provided that employs a current steering circuit (instead of voltages driven differential pair(s) as is done with conventional drivers) to generate pull-down currents that precisely match the voltages in the pull-up portions of driver. It increases the speed and produces smaller output common-mode voltage fluctuation over conventional drivers. Thus, the driver provided here can be produced in BiCMOS process technologies without the undesirable effects of conventional drivers.

摘要翻译： 在双极CMOS或BiCMOS工艺技术中，使用双极和CMOS晶体管（即场效应晶体管或FET）的驱动器（例如混合模式或混合模式驱动器）可能具有不希望的性能，例如速度降低，振铃，闭锁， 或更低的静电放电（ESD）性能。 这里，提供混合或混合模式驱动器，其采用当前转向电路（代替如常规驱动器所做的电压驱动差分对））产生精确匹配上拉部分中的电压的下拉电流 的司机。 与常规驱动器相比，它提高了速度并产生较小的输出共模电压波动。 因此，这里提供的驱动器可以以BiCMOS工艺技术生产，而不会产生常规驱动器的不良影响。

公开(公告)号：US07894517B2

公开(公告)日：2011-02-22

申请号：US11986900

申请日：2007-11-27

申请人： Hao Liu ,  Yanli Fan ,  Mark W. Morgan ,  Mohammed R. Islam

发明人： Hao Liu ,  Yanli Fan ,  Mark W. Morgan ,  Mohammed R. Islam

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03057 ,  H04L2025/03445

摘要： A self-calibrating, adaptive equalization system for generating an ideal digital signal is disclosed. The adaptive equalization system includes an equalizer and a high-gain buffer. The equalizer includes a first equalizer loop that feeds-back a control voltage to the equalizer and the high-gain buffer that includes a second equalizer loop that feeds-back a high-pass-to-low-pass filter ratio signal. Each of the first and second equalizer loops has a high-pass and a low-pass filter, rectifying circuits for each of the filters, and an integrating circuit that compares signal energy output from the rectifiers. The adaptive equalization system generates an ideal digital signal.

摘要翻译： 公开了一种用于产生理想数字信号的自校准自适应均衡系统。 自适应均衡系统包括均衡器和高增益缓冲器。 均衡器包括将控制电压反馈到均衡器的第一均衡器回路和包括反馈高通到低通滤波器比率信号的第二均衡器回路的高增益缓冲器。 第一和第二均衡器回路中的每一个具有高通滤波器和低通滤波器，用于每个滤波器的整流电路以及用于比较整流器输出的信号能量的积分电路。 自适应均衡系统产生理想的数字信号。