公开(公告)号：US08891707B2

公开(公告)日：2014-11-18

申请号：US12761411

申请日：2010-04-16

申请人： Chi-Lun Lo ,  Chia-Hsin Wu ,  Tsung-Ling Li

发明人： Chi-Lun Lo ,  Chia-Hsin Wu ,  Tsung-Ling Li

IPC分类号： H04B1/10 ,  H04B1/30

CPC分类号： H04B1/30

摘要： A receiving device includes: a mixer module arranged to receive an input signal to generate a down-converted output; a first active filter, the first active filter arranged to receive the down-converted output and perform an active filtering process upon the down-converted output to generate a first filtered output; a passive filter, the passive filter arranged to receive the first filtered output and perform a passive filtering process upon the first filtered output to generate a second filtered output; and a processing circuit, the processing circuit arranged to receive the second filtered output and process the second filtered output to generate an output signal corresponding to the input signal.

摘要翻译： 接收装置包括：混合器模块，被布置成接收输入信号以产生下变频输出; 第一有源滤波器，所述第一有源滤波器被布置为接收所述经下变频的输出，并且对所述经下变频的输出执行有源滤波处理以产生第一滤波输出; 无源滤波器，无源滤波器被布置为接收第一滤波输出并且在第一滤波输出上执行无源滤波处理以产生第二滤波输出; 以及处理电路，所述处理电路被布置为接收所述第二滤波输出并处理所述第二滤波输出以产生对应于所述输入信号的输出信号。

公开(公告)号：US08183849B2

公开(公告)日：2012-05-22

申请号：US12464114

申请日：2009-05-12

申请人： Chia-Hsin Wu

发明人： Chia-Hsin Wu

IPC分类号： G05F3/08 ,  G01R35/04

CPC分类号： H03F1/30 ,  G05F3/262

摘要： A calibration apparatus includes: a first circuit arranged for generating a reference voltage with respect to a first circuit element according to a reference current flowing to the first circuit element, a second circuit arranged for generating an output voltage according to a tunable current, and an adjusting circuit coupled to the first circuit and the second circuit for adjusting the tunable current to a target current value according to the reference voltage and the output voltage.

摘要翻译： 校准装置包括：第一电路，被配置为根据流向第一电路元件的参考电流产生相对于第一电路元件的参考电压;第二电路，被布置成根据可调谐电流产生输出电压;以及 调整电路，耦合到第一电路和第二电路，用于根据参考电压和输出电压将可调谐电流调整到目标电流值。

公开(公告)号：US07714657B2

公开(公告)日：2010-05-11

申请号：US12033656

申请日：2008-02-19

申请人： Chia-hsin Wu

发明人： Chia-hsin Wu

IPC分类号： H03G3/10

CPC分类号： H03F3/195 ,  H03F1/0261 ,  H03F1/22 ,  H03F1/302 ,  H03F2200/09 ,  H03F2200/18 ,  H03F2200/27 ,  H03F2200/294 ,  H03F2200/36 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/492

摘要： An amplifier includes an amplifier module coupled to an input node, and an attenuating module. The attenuating module includes an attenuation resistor coupled to the input node, and an impedance compensation module coupled to the input node. The impedance compensation module compensates an input impedance when an input RF signal is attenuated by the attenuating module.

摘要翻译： 放大器包括耦合到输入节点的放大器模块和衰减模块。 衰减模块包括耦合到输入节点的衰减电阻器和耦合到输入节点的阻抗补偿模块。 当输入RF信号被衰减模块衰减时，阻抗补偿模块补偿输入阻抗。

公开(公告)号：US20090131006A1

公开(公告)日：2009-05-21

申请号：US11942743

申请日：2007-11-20

申请人： Chia-Hsin Wu

发明人： Chia-Hsin Wu

IPC分类号： H04B1/16

CPC分类号： H03D7/166 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D7/165 ,  H03D2200/0025 ,  H04L2027/0016

摘要： An apparatus, an integrated circuit, and a method of compensating I/Q (inphase/quadrature) phase mismatch. The apparatus comprises a mixer, a phase detector, and a calibration controller. The mixer mixes an inphase calibration signal with an inphase component of a local oscillation signal to generate a first signal, mixes a quadrature calibration signal with a quadrature component of the local oscillation signal to generate a second signal, and mixes an incoming RF signal with the local oscillation signal to demodulate the incoming RF signal. The phase detector coupled to the mixer, determines a phase difference between the first and second signals. The calibration controller coupled to the phase detector, adjusts phases of the inphase and quadrature calibration signals such that the phase difference is substantially 90 degrees.

摘要翻译： 一种装置，集成电路和补偿I / Q（同相/正交）相位失配的方法。 该装置包括混合器，相位检测器和校准控制器。 混频器将同相校准信号与本地振荡信号的同相分量混合以产生第一信号，将正交校准信号与本地振荡信号的正交分量混合以产生第二信号，并将输入的RF信号与 本地振荡信号来解调输入的RF信号。 耦合到混频器的相位检测器确定第一和第二信号之间的相位差。 耦合到相位检测器的校准控制器调整同相和正交校准信号的相位，使得相位差基本上为90度。

公开(公告)号：US07477918B2

公开(公告)日：2009-01-13

申请号：US11382108

申请日：2006-05-08

申请人： Chia-Hsin Wu

发明人： Chia-Hsin Wu

IPC分类号： H04M1/00 ,  H04B7/00

CPC分类号： H04B1/0096

摘要： A radio-frequency receiver. The radio-frequency receiver includes a first and second low noise amplifier (LNA), a local oscillating module, and a first, second, and third mixer. The first LNA amplifies a first RF signal. The local oscillating module generates a first, second and third local oscillating signals. The first local oscillating signal is generated according to the second local oscillating signal. The first mixer mixes the first RF signal with the first local oscillating signal to generate an intermediate frequency signal. The second LNA amplifies a second RF signal. The second and third mixers can be operated in two modes. The second and third mixers mix the intermediate frequency signal to generate a first and second baseband signal respectively in the first mode, and the second and third mixers mix the second RF signal with the second and third oscillating frequency respectively in a second mode.

摘要翻译： 射频接收机。 射频接收机包括第一和第二低噪声放大器（LNA），本地振荡模块以及第一，第二和第三混频器。 第一个LNA放大第一个RF信号。 本地振荡模块产生第一，第二和第三局部振荡信号。 第一本地振荡信号根据第二本地振荡信号产生。 第一混频器将第一RF信号与第一本地振荡信号混频以产生中频信号。 第二LNA放大第二RF信号。 第二和第三混合器可以在两种模式下操作。 第二和第三混频器混合中频信号以在第一模式下分别产生第一和第二基带信号，第二和第三混频器分别在第二模式中混合第二RF信号与第二和第三振荡频率。

公开(公告)号：US20070259643A1

公开(公告)日：2007-11-08

申请号：US11382108

申请日：2006-05-08

申请人： Chia-Hsin Wu

发明人： Chia-Hsin Wu

IPC分类号： H04B1/26 ,  H04B15/00

CPC分类号： H04B1/0096

摘要： A radio-frequency receiver. The radio-frequency receiver includes a first and second low noise amplifier (LNA), a local oscillating module, and a first, second, and third mixer. The first LNA amplifies a first RF signal. The local oscillating module generates a first, second and third local oscillating signals. The first local oscillating signal is generated according to the second local oscillating signal. The first mixer mixes the first RF signal with the first local oscillating signal to generate an intermediate frequency signal. The second LNA amplifies a second RF signal. The second and third mixers can be operated in two modes. The second and third mixers mix the intermediate frequency signal to generate a first and second baseband signal respectively in the first mode, and the second and third mixers mix the second RF signal with the second and third oscillating frequency respectively in a second mode.

摘要翻译： 射频接收机。 射频接收机包括第一和第二低噪声放大器（LNA），本地振荡模块以及第一，第二和第三混频器。 第一个LNA放大第一个RF信号。 本地振荡模块产生第一，第二和第三局部振荡信号。 第一本地振荡信号根据第二本地振荡信号产生。 第一混频器将第一RF信号与第一本地振荡信号混频以产生中频信号。 第二LNA放大第二RF信号。 第二和第三混合器可以在两种模式下操作。 第二和第三混频器混合中频信号以在第一模式下分别产生第一和第二基带信号，第二和第三混频器分别在第二模式中混合第二RF信号与第二和第三振荡频率。

公开(公告)号：US06559751B2

公开(公告)日：2003-05-06

申请号：US09970237

申请日：2001-10-02

申请人： Shen-Iuan Liu ,  Chia-Hsin Wu

发明人： Shen-Iuan Liu ,  Chia-Hsin Wu

IPC分类号： H01F500

CPC分类号： H01F17/0013 ,  H01L27/08

摘要： The present invention provides an inductor device with a first input/output terminal and a second input/output terminal. The inductor device comprises a first coil and a second coil. The first coil has a first inner coil and a first outer coil surrounding the first inner coil. The first inner coil has a first connect portion connecting to the first input/output terminal and a second connect portion. The first outer coil has a third connect portion and a fourth connect portion connecting to the second input/output terminal. The second coil located has a second inner coil and a second outer coil surrounding the second inner coil. The second inner coil has a fifth connect portion and a sixth connect portion connecting to the second connect portion. The second outer coil has a seventh connect portion connecting to the fifth connect portion and a eighth connect portion connecting to the third connect portion.

公开(公告)号：US20110069797A1

公开(公告)日：2011-03-24

申请号：US12761411

申请日：2010-04-16

申请人： Chi-Lun Lo ,  Chia-Hsin Wu ,  Tsung-Ling Li

发明人： Chi-Lun Lo ,  Chia-Hsin Wu ,  Tsung-Ling Li

IPC分类号： H04B1/10

CPC分类号： H04B1/30

摘要： A receiving device includes: a mixer module arranged to receive an input signal to generate a down-converted output; a first active filter, the first active filter arranged to receive the down-converted output and perform an active filtering process upon the down-converted output to generate a first filtered output; a passive filter, the passive filter arranged to receive the first filtered output and perform a passive filtering process upon the first filtered output to generate a second filtered output; and a processing circuit, the processing circuit arranged to receive the second filtered output and process the second filtered output to generate an output signal corresponding to the input signal.

摘要翻译： 接收装置包括：混合器模块，被布置成接收输入信号以产生下变频输出; 第一有源滤波器，所述第一有源滤波器被布置为接收所述经下变频的输出，并且对所述经下变频的输出执行有源滤波处理以产生第一滤波输出; 无源滤波器，无源滤波器被布置为接收第一滤波输出并且在第一滤波输出上执行无源滤波处理以产生第二滤波输出; 以及处理电路，所述处理电路被布置为接收所述第二滤波输出并处理所述第二滤波输出以产生对应于所述输入信号的输出信号。

公开(公告)号：US20100301920A1

公开(公告)日：2010-12-02

申请号：US12474456

申请日：2009-05-29

申请人： Chia-Hsin Wu

发明人： Chia-Hsin Wu

IPC分类号： G06F7/44

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0043 ,  H03D2200/0084

摘要： A mixer is provided. The transconductance stage receives an input signal through an input node and outputs an output signal through an output node. The transconductance stage includes a first transistor coupled between the output node and a first power node, having a first gate coupled to the input node, and operating in a saturation region, a second transistor coupled to the first power node, having a second gate coupled to the input node, and operating in a sub-threshold region, a first biasing circuit providing a first bias voltage, and a third transistor coupled between the output node and the second transistor, and having a third gate coupled to the first bias voltage. The switching quad is coupled to the output node and generates a translation current according to the output signal. The transimpedance amplifier transforms the translation current to a corresponding voltage.

摘要翻译： 提供混音器。 跨导级通过输入节点接收输入信号，并通过输出节点输出输出信号。 跨导级包括耦合在输出节点和第一功率节点之间的第一晶体管，其具有耦合到输入节点的第一栅极并且在饱和区域中工作，耦合到第一功率节点的第二晶体管具有第二栅极耦合 并且在子阈值区域中工作，提供第一偏置电压的第一偏置电路和耦合在输出节点和第二晶体管之间的第三晶体管，并且具有耦合到第一偏置电压的第三栅极。 开关四极管耦合到输出节点，并根据输出信号产生平移电流。 跨阻放大器将平移电流转换为相应的电压。

公开(公告)号：US20100056095A1

公开(公告)日：2010-03-04

申请号：US12202612

申请日：2008-09-02

申请人： Chia-Hsin WU

发明人： Chia-Hsin WU

IPC分类号： H03D7/14

CPC分类号： H03D7/18 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0084

摘要： A mixer is provided. The mixer comprises a Gilbert cell mixer core, a pair of load devices, a transconductor cell, and a current injection branch. The Gilbert cell mixer core has first and second nodes, receives a first differential input signal, and provides a differential output signal at the first nodes. The load devices are respectively coupled between the first nodes of the Gilbert cell mixer core and a first fixed voltage. The transconductor cell is coupled between the second nodes and a second fixed voltage and receives a second differential input signal. The dynamic current injection branch comprises first and second pairs of MOS transistors each connected in parallel and having drains commonly coupled to a corresponding second node and gates receiving a third differential input signal. There is a phase difference of 90° between the first and third differential input signals.

摘要翻译： 提供混音器。 混合器包括吉尔伯特电池混频器核心，一对负载装置，跨导电池和电流注入分支。 吉尔伯特单元混频器内核具有第一和第二节点，接收第一差分输入信号，并在第一节点处提供差分输出信号。 负载设备分别耦合在吉尔伯特单元混频器核心的第一节点和第一固定电压之间。 跨导电池耦合在第二节点和第二固定电压之间并且接收第二差分输入信号。 动态电流注入分支包括第一和第二对MOS晶体管，每个MOS晶体管并联连接并且具有共同耦合到对应的第二节点的漏极，并且接收第三差分输入信号的栅极。 在第一和第三差分输入信号之间存在90°的相位差。