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21. 发明授权

US07262665B1 Active bias circuit for low-noise amplifiers 有权
标题翻译：低噪声放大器的主动偏置电路
公开(公告)号：US07262665B1
公开(公告)日：2007-08-28
申请号：US11523423
申请日：2006-09-19
申请人： Xiaodong Jin , Shuran Wei
发明人： Xiaodong Jin , Shuran Wei
IPC分类号： H03G3/10
CPC分类号： H03F1/26 , H03F1/30 , H03F3/343 , H03F2200/294 , H03F2200/372 , H03F2200/504
摘要： A low-noise amplifier with a first amplification circuit that includes a control terminal, a first terminal, and a second terminal that communicates with a first reference voltage. An impedance load that communicates with the first terminal and a feedback circuit that comprises a current source that communicates with a second reference voltage. A comparator circuit that includes a first input, a second input and an output that communicates with the control terminal. A first impedance that communicates with the current source and the first input and that generates a predetermined reference voltage based on a reference current generated by the current source and a second impedance that communicates with the second input and the impedance load wherein the feedback circuit compares a voltage, based on an output current associated with the first terminal, with the reference voltage to generate a bias signal that is applied to the control terminal.
摘要翻译：一种具有第一放大电路的低噪声放大器，包括控制端子，第一端子和与第一参考电压连通的第二端子。与第一端子通信的阻抗负载和包括与第二参考电压通信的电流源的反馈电路。比较器电路，其包括与控制端子通信的第一输入端，第二输入端和输出端。第一阻抗，其与电流源和第一输入端通信，并且基于由电流源产生的参考电流产生预定参考电压，以及与第二输入和阻抗负载通信的第二阻抗，其中反馈电路将基于与第一端子相关联的输出电流的电压与参考电压产生施加到控制端子的偏置信号。

22. 发明授权

US07253690B1 Method and apparatus for an LNA with high linearity and improved gain control 有权
标题翻译：具有高线性度和改进的增益控制的LNA的方法和装置
公开(公告)号：US07253690B1
公开(公告)日：2007-08-07
申请号：US11650681
申请日：2007-01-08
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： H03F3/04
CPC分类号： H03F1/26 , H03F1/223 , H03F1/301 , H03F1/3205 , H03F1/34 , H03F3/345 , H03F3/45475 , H03F2200/294 , H03F2200/372 , H03F2200/456
摘要： A low noise amplifier (LNA) comprises a bias circuit having an output. A first transistor includes a control input that communicates with the bias circuit, a first terminal that generates a LNA output current and a second terminal. A device communicates with the second terminal of the first transistor, includes a variable resistor, and has a resistance that is modulated in response to an input signal to the LNA.
摘要翻译：低噪声放大器（LNA）包括具有输出的偏置电路。第一晶体管包括与偏置电路通信的控制输入端，产生LNA输出电流的第一端子和第二端子。设备与第一晶体管的第二端子通信，包括可变电阻器，并且具有响应于LNA的输入信号而被调制的电阻。

23. 发明授权

US07230494B1 Method and apparatus for an LNA with high linearity and improved gain control 有权
标题翻译：具有高线性度和改进的增益控制的LNA的方法和装置
公开(公告)号：US07230494B1
公开(公告)日：2007-06-12
申请号：US11175560
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： H03F3/04
CPC分类号： H03G1/0029 , H03G1/007 , H03G2201/103
摘要： A method of amplifying an input signal comprises providing a semiconductor die, forming an LNA input stage having a transconductance, on the semiconductor die, and desensitizing the LNA input stage transconductance to variations in process and environmental conditions.
摘要翻译：放大输入信号的方法包括在半导体管芯上提供形成具有跨导的LNA输入级的半导体管芯，以及将LNA输入级跨导脱敏到工艺和环境条件的变化。

24. 发明授权

US07099646B1 Signal mixer having a single-ended input and a differential output 有权
标题翻译：信号混频器具有单端输入和差分输出
公开(公告)号：US07099646B1
公开(公告)日：2006-08-29
申请号：US10764580
申请日：2004-01-27
申请人： Xiaodong Jin , Lawrence Tse
发明人： Xiaodong Jin , Lawrence Tse
IPC分类号： H04B1/26
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/145 , H03D7/1458 , H03D7/1491 , H03D2200/0023 , H03D2200/0088
摘要： A single-ended-to-differential mixer includes a differential input circuit having a single-ended input. The differential input circuit is responsive to a single-ended input signal to generate first and second signals. The single-ended-to-differential mixer includes a passive tank circuit in communication between a reference voltage and the differential input circuit. The single-ended-to-differential mixer includes a mixer circuit in communication with the differential input circuit and responsive to the first and second signals and a second input signal to generate a differential mixer output signal.
摘要翻译：单端到差分混频器包括具有单端输入的差分输入电路。差分输入电路响应于单端输入信号以产生第一和第二信号。单端到差分混频器包括在参考电压和差分输入电路之间通信的无源电路。单端到差分混频器包括与差分输入电路通信并响应于第一和第二信号的混频器电路和第二输入信号以产生差分混频器输出信号。

25. 发明授权

US07088187B1 Method and apparatus for an LNA with high linearity and improved gain control 有权
标题翻译：具有高线性度和改进的增益控制的LNA的方法和装置
公开(公告)号：US07088187B1
公开(公告)日：2006-08-08
申请号：US11049211
申请日：2005-02-02
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： H03F3/04
CPC分类号： H03G1/0029 , H03G1/007 , H03G2201/103
摘要： A low noise amplifier (LNA) comprises an input stage to amplify an input signal, the input stage having a transconductance that has reduced gain variations in response to changes in process and environmental conditions. The input stage includes a first transistor. A second transistor communicates with the first transistor. A bias circuit biases the first transistor in a triode region and the second transistor in a saturation region, wherein an input of the LNA communicates with a control terminal of the first transistor.
摘要翻译：低噪声放大器（LNA）包括用于放大输入信号的输入级，输入级具有响应于过程和环境条件变化而减小的增益变化的跨导。输入级包括第一晶体管。第二晶体管与第一晶体管通信。偏置电路将三极管区域中的第一晶体管和饱和区域中的第二晶体管偏置，其中LNA的输入与第一晶体管的控制端子通信。

26. 发明授权

US07009308B1 Methods and apparatus for improving high frequency input/output performance 有权
标题翻译：改善高频输入/输出性能的方法和装置
公开(公告)号：US07009308B1
公开(公告)日：2006-03-07
申请号：US11034979
申请日：2005-01-13
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： A circuit that eliminates an off-chip inductive component connected between an integrated circuit (IC) arranged on a package and an external load comprises a package and an IC that is arranged on the package. A first bondwire arranged on the package has one end that communicates with the external load and an opposite end that communicates with the IC. A second bondwire located on the package has one end that communicates with the external load and an opposite end that communicates with the IC.
摘要翻译：消除连接在布置在封装上的集成电路（IC）和外部负载之间的片外感应元件的电路包括布置在封装上的封装和IC。布置在封装上的第一接合线具有与外部负载连通的一端和与IC连通的相对端。位于封装上的第二接合线具有与外部负载连通的一端和与IC连通的相对端。

27. 发明授权

US07002220B1 ESD protection circuit 失效
标题翻译： ESD保护电路
公开(公告)号：US07002220B1
公开(公告)日：2006-02-21
申请号：US10397454
申请日：2003-03-26
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： H01L23/62
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： An electrostatic discharge (ESD) protection circuit is provided for protecting transistors of an integrated circuit (IC) from ESD. The ESD protection circuit includes n transistors with n gates and less than n drains where n is an integer greater than 1. At least m resistors have first ends that communicate with at least one of the transistors of the IC, a blocking capacitor of the IC, an input pad of the IC, and an output pad of the IC, and second ends that connect to corresponding drain terminals of said drains where m is an integer greater than or equal to n/2.
摘要翻译：提供了一种静电放电（ESD）保护电路，用于保护集成电路（IC）的晶体管与ESD。 ESD保护电路包括具有n个栅极且小于n个漏极的n个晶体管，其中n是大于1的整数。至少m个电阻器具有与IC的至少一个晶体管，IC的隔离电容器，，IC的输入焊盘和IC的输出焊盘，以及连接到所述漏极的相应漏极端子的第二端，其中m是大于或等于n / 2的整数。

28. 发明申请

US20120025911A1 Low Noise Amplifier with Current Bleeding Branch 有权
标题翻译：低噪声放大器，具有电流出血分支
公开(公告)号：US20120025911A1
公开(公告)日：2012-02-02
申请号：US12894144
申请日：2010-09-30
申请人： Zhongwu Zhao , Xiaodong Jin
发明人： Zhongwu Zhao , Xiaodong Jin
IPC分类号： H03F1/22 , H03F3/45 , H03F3/04
CPC分类号： H03F3/45201 , H03F1/223 , H03F2200/294 , H03F2200/451 , H03F2203/45336 , H03F2203/45491 , H03F2203/45494 , H03F2203/45696 , H03F2203/45726 , H03G1/0029
摘要： An LNA circuit for providing a wide range of gain while maintaining the output headroom. In a radio frequency (RF) receiver, the signal received by the receiver may be extremely small. For a transmitter in a short distance, the received signal may be relatively strong. A low power amplifier usually is used to amplify the input signal. The LNA has to be designed to accommodate a wide range of gain. A convention LNA circuit supporting a wide range of gain often suffers from reduced output headroom due to increased current through the load resistor. The present invention discloses the use of current bleeding branch to allow a portion of current to flow through the current bleeding branch and consequently reduces the current that would have flown through the load resistor. Consequently, the voltage across the load resistor may be maintained low to allow adequate output headroom.
摘要翻译： LNA电路，用于提供宽范围的增益，同时保持输出净空。在射频（RF）接收机中，由接收机接收的信号可能非常小。对于短距离的发射机，接收的信号可能相对较强。低功率放大器通常用于放大输入信号。 LNA必须设计成适应广泛的收益。支持宽范围增益的常规LNA电路通常由于通过负载电阻的电流增加而导致输出净空减少。本发明公开了使用流出血分支以允许电流的一部分流过电流出血支路，从而减少了将流过负载电阻器的电流。因此，可以将负载电阻器两端的电压维持在低电平以允许足够的输出净空。

29. 发明授权

US08027644B2 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US08027644B2
公开(公告)日：2011-09-27
申请号：US12881226
申请日：2010-09-14
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A transceiver system includes a first receive path with a first antenna configured to receive first signals, a first configuration switch, a first low noise amplifier configured to amplify the first signals, a second configuration switch, and a receiver. The first receive path is selectively configured to supply the amplified first signals to the receiver via the first antenna, the first configuration switch, the first low noise amplifier, and the second configuration switch. A second receive path includes a second antenna configured to receive second signals, a second low noise amplifier configured to amplify the second signals, the second configuration switch, and the receiver. The second receive path (i) includes fewer configuration switches than the first receive path and (ii) is selectively configured to supply the amplified second signals to the receiver via the second antenna, the second low noise amplifier, and the second configuration switch.
摘要翻译：收发机系统包括具有被配置为接收第一信号的第一天线的第一接收路径，第一配置开关，被配置为放大第一信号的第一低噪声放大器，第二配置开关和接收器。第一接收路径被选择性地配置为经由第一天线，第一配置开关，第一低噪声放大器和第二配置开关将放大的第一信号提供给接收器。第二接收路径包括被配置为接收第二信号的第二天线，配置成放大第二信号的第二低噪声放大器，第二配置开关和接收器。第二接收路径（i）包括比第一接收路径更少的配置开关，以及（ii）被选择性地配置为经由第二天线，第二低噪声放大器和第二配置开关将经放大的第二信号提供给接收机。

30. 发明授权

US07796952B1 Transceiver system including dual low-noise amplifiers 有权
标题翻译：收发系统包括双低音放大器
公开(公告)号：US07796952B1
公开(公告)日：2010-09-14
申请号：US10701626
申请日：2003-11-06
申请人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
发明人： Xiaodong Jin , Sehat Sutardja , Lawrence Tse
IPC分类号： H04B1/38
CPC分类号： H04B1/0064 , H04B7/0805
摘要： A system for communicating information signals includes a receiver in selective communication with a first antenna and a second antenna. The receiver is configured to selectively receive information signals via the first or second antenna. The system includes a first low-noise amplifier in communication with the first antenna and in selective communication with the receiver. The first low-noise amplifier is configured to amplify a first information signal received by the first antenna to generate a first amplified signal. The system includes a second low-noise amplifier in communication with the second antenna and in selective communication with the receiver. At least the first and second low-noise amplifiers are formed on a monolithic substrate. The second low-noise amplifier is configured to amplify a second information signal received by the second antenna to generate a second amplified signal. Either the first or second amplified signal is selectively applied to the receiver.
摘要翻译：用于传送信息信号的系统包括与第一天线和第二天线选择性通信的接收机。接收器被配置为经由第一或第二天线选择性地接收信息信号。该系统包括与第一天线通信并与接收机选择性通信的第一低噪声放大器。第一低噪声放大器被配置为放大由第一天线接收的第一信息信号以产生第一放大信号。该系统包括与第二天线通信并与接收机选择性通信的第二低噪声放大器。至少第一和第二低噪声放大器形成在单片基板上。第二低噪声放大器被配置为放大由第二天线接收的第二信息信号以产生第二放大信号。第一或第二放大信号被选择性地施加到接收器。

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