公开(公告)号：US08044716B1

公开(公告)日：2011-10-25

申请号：US12984477

申请日：2011-01-04

申请人： Wayne Loeb ,  King Chun Tsai

发明人： Wayne Loeb ,  King Chun Tsai

IPC分类号： H03F1/14

CPC分类号： H03G1/0088 ,  H03F1/0261 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/245 ,  H03F3/45085 ,  H03F3/602 ,  H03F2200/09 ,  H03F2200/18 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/21139 ,  H03F2203/21178 ,  H03F2203/45731 ,  H04B1/0483

摘要： An adjustable, segmented amplifier including (i) a first fixed stage configured to amplify an analog signal in accordance with a fixed amplification, and provide the analog signal amplified in accordance with the fixed amplification to a first common node. The adjustable, segmented amplifier further includes an adjustable stage comprising a plurality of independently selectable parallel amplifier segments, wherein the adjustable stage is configured to (i) amplify the analog signal provided to the first common node in accordance with an adjustable amplification that is adjustable depending upon a number of the independently selectable parallel amplifier segments having been selected to amplify the analog signal provided to the first common node, and (ii) provide the analog signal amplified in accordance with the fixed amplification and amplified in accordance with the adjustable amplification to the second common node.

摘要翻译： 一种可调节分段放大器，包括：（i）第一固定级，被配置为根据固定放大放大模拟信号，并将根据固定放大放大的模拟信号提供给第一公共节点。 可调分段放大器还包括可调节级，其包括多个可独立选择的并联放大器段，其中可调节级被配置为（i）根据可调整的放大倍数来放大提供给第一公共节点的模拟信号 在多个独立可选择的并联放大器段被选择以放大提供给第一公共节点的模拟信号之后，以及（ii）提供根据固定放大器放大的模拟信号，并根据可调放大倍数放大到 第二个公共节点。

公开(公告)号：US07962116B1

公开(公告)日：2011-06-14

申请号：US12287928

申请日：2008-10-15

申请人： King Chun Tsai ,  Lawrence Tse ,  George Chien

发明人： King Chun Tsai ,  Lawrence Tse ,  George Chien

IPC分类号： H04B1/16

CPC分类号： H03G3/3042 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0025 ,  H03D2200/0043 ,  H03G3/3052

摘要： A receiver includes a Gilbert cell mixer comprising an input transconductance stage. The input transconductance stage includes first and second transistors receiving an input signal and providing a first gain characteristic that is substantially non-linear over an operating frequency range of the receiver. Third and fourth transistors receive the input signal and provide a second gain characteristic that is substantially non-linear over the operating range of the receiver. A combined gain characteristic of the input transconductance stage is based on the first and second gain characteristics and is substantially linear over the operating frequency range of the receiver.

摘要翻译： 接收机包括具有输入跨导级的吉尔伯特单元混合器。 输入跨导级包括接收输入信号的第一和第二晶体管，并且在接收器的工作频率范围上提供基本上非线性的第一增益特性。 第三和第四晶体管接收输入信号并提供在接收器的工作范围上基本上非线性的第二增益特性。 输入跨导级的组合增益特性基于第一和第二增益特性，并且在接收器的工作频率范围上基本上是线性的。

公开(公告)号：US07817998B1

公开(公告)日：2010-10-19

申请号：US11322019

申请日：2005-12-29

申请人： Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Tyson Leistiko

发明人： Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Tyson Leistiko

IPC分类号： H04M7/20

CPC分类号： H04W56/003 ,  H04B1/40 ,  H04B17/21

摘要： A packet-based wireless transceiver that transmits and receives data packets comprises a receiver including a mixer that converts signal frequencies and a baseband circuit that communicates with the mixer and that includes an amplifier. A receiver voltage offset calibration circuit adjusts a receiver voltage offset at the baseband circuit at times synchronized with the data packets and includes a calibration signal generator that outputs calibration signals to first and second inputs of the baseband circuit and a calibration adjustment circuit that communicates with the calibration signal generator and that adjusts the calibration signal to reduce the voltage offset based on an output of the amplifier.

摘要翻译： 发送和接收数据分组的基于分组的无线收发器包括接收机，该接收机包括转换信号频率的混频器和与混频器通信并包括放大器的基带电路。 接收机电压偏移校准电路在与数据分组同步的同时调整基带电路的接收机电压偏移，并且包括将校准信号输出到基带电路的第一和第二输入的校准信号发生器以及与基带电路通信的校准调节电路 校准信号发生器，并且根据放大器的输出调整校准信号以减小电压偏移。

公开(公告)号：US07808322B1

公开(公告)日：2010-10-05

申请号：US11656576

申请日：2007-01-23

申请人： Sang Won Son ,  King Chun Tsai ,  Yuan-Ju Chao ,  Lawrence Tse

发明人： Sang Won Son ,  King Chun Tsai ,  Yuan-Ju Chao ,  Lawrence Tse

IPC分类号： H03F3/18

CPC分类号： H03G3/3042

摘要： A system comprises a variable gain amplifier (VGA) that amplifies an input signal with a gain that is based on a gain control signal. A power amplifier receives an output of the VGA. Memory switches between at least two of N output power settings each including a predetermined reference value and a predetermined gain offset value. The memory substantially concurrently changes from the predetermined reference value and the predetermined gain offset value of a prior one of the N output power settings to the predetermined reference value and the predetermined gain offset value of a current one of the N output power settings, where N is an integer greater than one. A gain control adjuster adjusts the gain control signal based on an output of the power amplifier and the predetermined reference value and gain offset value of the current one of the N output power settings.

摘要翻译： 系统包括可变增益放大器（VGA），其以基于增益控制信号的增益放大输入信号。 功率放大器接收VGA的输出。 存储器在N个输出功率设置中的至少两个之间切换，每个输出功率设置包括预定的参考值和预定的增益偏移值。 存储器基本上同时从N个输出功率设置中的先前的一个的预定参考值和预定增益偏移值改变为N个输出功率设置中的当前参考值和预定增益偏移值，其中N 是大于1的整数。 增益控制调节器基于功率放大器的输出和N个输出功率设置中的当前一个的预定参考值和增益偏移值来调节增益控制信号。

公开(公告)号：US07751164B1

公开(公告)日：2010-07-06

申请号：US12154706

申请日：2008-05-27

申请人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse ,  King Chun Tsai

发明人： Xiaodong Jin ,  Sehat Sutardja ,  Lawrence Tse ,  King Chun Tsai

IPC分类号： H02H9/00 ,  H02H3/22 ,  H03K17/16

CPC分类号： H01L23/66 ,  H01L24/06 ,  H01L24/48 ,  H01L24/49 ,  H01L27/0251 ,  H01L2223/6611 ,  H01L2223/6655 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/4809 ,  H01L2224/48091 ,  H01L2224/48092 ,  H01L2224/484 ,  H01L2224/49113 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/14 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/19104 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H01L2224/45099 ,  H01L2924/00

摘要： A method for reducing a parasitic capacitance of an electrostatic discharge (ESD) protection circuit for an integrated circuit (IC) includes providing an ESD protection circuit including a plurality of transistors; coupling one end of a resistor to a shared drain of the plurality of transistors; and coupling an opposite end of the resistor to at least one of an input pad of the IC, a blocking capacitor of the IC and a transistor in the IC.

摘要翻译： 一种用于降低集成电路（IC）的静电放电（ESD）保护电路的寄生电容的方法包括提供包括多个晶体管的ESD保护电路; 将电阻器的一端耦合到所述多个晶体管的共享漏极; 以及将所述电阻器的相对端耦合到所述IC的输入焊盘，所述IC的隔离电容器和所述IC中的晶体管中的至少一个。

公开(公告)号：US07610022B1

公开(公告)日：2009-10-27

申请号：US10794563

申请日：2004-03-05

申请人： Swee-Ann Teo ,  King Chun Tsai ,  Sang Won Son

发明人： Swee-Ann Teo ,  King Chun Tsai ,  Sang Won Son

IPC分类号： H04B1/38

CPC分类号： H03H11/04 ,  H03H11/1291

摘要： Apparatus, systems, and methods implementing techniques for filtering signals are described. A filter circuit receives an input signal and produces a corresponding filtered signal. The filter circuit has a transfer function that relates the filtered signal to the input signal. The transfer function includes at least one pole and at least one zero, where at least one of the zeros corresponds to a first frequency, and at least one of the poles corresponds to a second frequency. The apparatus also includes a negative-transconductance circuit that is coupled to the filter circuit and that increases a magnitude of a component of the filtered signal that corresponds to the second frequency.

摘要翻译： 描述了实现滤波信号技术的装置，系统和方法。 滤波器电路接收输入信号并产生相应的滤波信号。 滤波器电路具有将滤波后的信号与输入信号相关联的传递函数。 传递函数包括至少一个极和至少一个零，其中至少一个零对应于第一频率，并且至少一个极对应于第二频率。 该装置还包括负跨导电路，其耦合到滤波器电路并且增加对应于第二频率的滤波信号的分量的幅度。

公开(公告)号：US07440742B1

公开(公告)日：2008-10-21

申请号：US11280027

申请日：2005-11-16

申请人： King Chun Tsai ,  Lawrence Tse ,  George Chien

发明人： King Chun Tsai ,  Lawrence Tse ,  George Chien

IPC分类号： H04B1/16

CPC分类号： H03G3/3042 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0025 ,  H03D2200/0043 ,  H03G3/3052

摘要： A gain calibration circuit comprises a generator that generates a constant overdrive voltage that biases a radio frequency (RF) mixer. A reference signal generator generates a reference signal. A comparator receives the reference signal and a second signal that is a function of a mixer bias current flowing through the RF mixer and that generates a difference signal. An adjustment circuit adjusts a transconductance gain of the RF mixer based on the difference signal.

摘要翻译： 增益校准电路包括产生偏置射频（RF）混频器的恒定过驱动电压的发生器。 参考信号发生器产生参考信号。 比较器接收参考信号和作为流过RF混频器并且产生差分信号的混频器偏置电流的函数的第二信号。 调整电路基于差分信号来调整RF混频器的跨导增益。

公开(公告)号：US07230491B1

公开(公告)日：2007-06-12

申请号：US11175943

申请日：2005-07-05

申请人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien

发明人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien

IPC分类号： H03G3/10

CPC分类号： H03G1/0029 ,  H03G1/007 ,  H03G2201/103

摘要： A bias circuit for biasing a linear input stage of an amplifier comprises a first MOS device having a size. A second MOS device has a size and is arranged with the first MOS device in a cascode configuration. The second MOS device is operated in a saturation region. A third MOS device has a size and biases the first MOS device in a triode region. A bias switch ratio of the size of the first MOS device to the size of the third MOS device is greater than one.

摘要翻译： 用于偏置放大器的线性输入级的偏置电路包括具有大小的第一MOS器件。 第二MOS器件具有尺寸并与第一MOS器件配置成共源共栅配置。 第二MOS器件在饱和区域中工作。 第三MOS器件具有尺寸并偏置三极管区域中的第一MOS器件。 第一MOS器件的尺寸与第三MOS器件的尺寸的偏置开关比大于1。

公开(公告)号：US07006824B1

公开(公告)日：2006-02-28

申请号：US10238475

申请日：2002-09-10

申请人： Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Tyson Leistiko

发明人： Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Tyson Leistiko

IPC分类号： H04B1/44 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W56/003 ,  H04B1/40 ,  H04B17/21

摘要： A packet-based wireless transceiver that transmits and receives data packets includes a transceiver component having an adjustable performance parameter. A calibration circuit adjusts the performance parameter of the transceiver component at times synchronized with the data packets. A calibration signal generator generates calibration signals based on the performance parameter and outputs the calibration signals to the transceiver component. A comparator receives the outputs of the transceiver component and generates a difference signal. A calibration adjustment circuit communicates with the calibration signal generator and the comparator and adjusts the performance parameter to reduce the difference signal. Alternately, a reference signal generator generates a reference signal. A comparator receives the reference signal and a second signal from the transceiver component and generates a difference signal. A calibration adjustment circuit adjusts the performance parameter of the transceiver to reduce the difference signal.

摘要翻译： 发送和接收数据分组的基于分组的无线收发器包括具有可调整性能参数的收发机组件。 校准电路在与数据包同步的同时调整收发器组件的性能参数。 校准信号发生器根据性能参数生成校准信号，并将校准信号输出到收发器组件。 比较器接收收发器部件的输出并产生差分信号。 校准调节电路与校准信号发生器和比较器通信，并调整性能参数以减小差分信号。 或者，参考信号发生器产生参考信号。 比较器从收发器部件接收参考信号和第二信号，并产生差分信号。 校准调整电路调整收发器的性能参数以减小差分信号。

公开(公告)号：US06987326B1

公开(公告)日：2006-01-17

申请号：US11033202

申请日：2005-01-11

申请人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Shuran Wei

发明人： Xiaodong Jin ,  Lawrence Tse ,  King Chun Tsai ,  George Chien ,  Shuran Wei

IPC分类号： H01L23/49

CPC分类号： H01L24/49 ,  H01L23/60 ,  H01L23/66 ,  H01L24/06 ,  H01L24/48 ,  H01L2223/6611 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/45015 ,  H01L2224/4809 ,  H01L2224/48091 ,  H01L2224/484 ,  H01L2224/49113 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01014 ,  H01L2924/01033 ,  H01L2924/14 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/20752 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H01L2224/45099 ,  H01L2924/00

摘要： An impedance matching circuit is provided for an IC arranged on a package that matches an impedance of an external load. The circuit includes a package, an IC that is arranged on the package, and an impedance matching circuit. The impedance matching circuit includes a first bondwire arranged on the package that has one end that communicates with the external load and an opposite end that communicates with said IC, a capacitance element arranged on the IC, and a second bondwire arranged on the package that has one end that communicates with the external load and an opposite end that communicates with one end of said capacitance element.

摘要翻译： 针对布置在与外部负载的阻抗匹配的封装上的IC提供阻抗匹配电路。 电路包括封装，布置在封装上的IC和阻抗匹配电路。 阻抗匹配电路包括布置在封装上的第一接合线，其具有与外部负载连通的一端和与所述IC连通的相对端，布置在IC上的电容元件和布置在封装上的第二接合线， 与外部负载连通的一端和与所述电容元件的一端连通的相对端。