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11. 发明授权

US08331884B1 Voltage regulator for high performance RF systems 有权
标题翻译：用于高性能RF系统的稳压器
公开(公告)号：US08331884B1
公开(公告)日：2012-12-11
申请号：US12893604
申请日：2010-09-29
申请人： Swee-Ann Teo , Lawrence Tse , Yonghua Song
发明人： Swee-Ann Teo , Lawrence Tse , Yonghua Song
IPC分类号： H04B1/04 , H04B1/06
CPC分类号： H04B1/40 , H03G3/004
摘要： A voltage regulator for a radio frequency circuit including a master regulator circuit, a first slave regulator circuit, and a first radio frequency subcircuit. The master regulator circuit is configured to i) receive a reference voltage signal and a feedback signal and ii) output a control voltage signal based on the reference voltage signal and the feedback signal. The first slave regulator circuit is configured to i) receive the control voltage signal and ii) output a first regulated supply voltage signal based on the control voltage signal. The first radio frequency subcircuit is configured to receive the first regulated supply voltage signal. The control voltage signal corresponds to a desired supply voltage for the first radio frequency subcircuit.
摘要翻译：一种用于射频电路的电压调节器，包括主调节器电路，第一从调节器电路和第一射频子电路。主调节器电路被配置为i）接收参考电压信号和反馈信号，以及ii）基于参考电压信号和反馈信号输出控制电压信号。第一从调节器电路被配置为i）接收控制电压信号，以及ii）基于控制电压信号输出第一稳压电源电压信号。第一射频分支电路被配置为接收第一稳压电源电压信号。控制电压信号对应于第一射频子电路的期望电源电压。

12. 发明授权

US07855604B1 Protection circuit and method for RF power amplifiers in WLAN transceivers 有权
标题翻译： WLAN收发器中RF功率放大器的保护电路和方法
公开(公告)号：US07855604B1
公开(公告)日：2010-12-21
申请号：US12351040
申请日：2009-01-09
申请人： Shuran Wei , Lawrence Tse , Sehat Sutardja
发明人： Shuran Wei , Lawrence Tse , Sehat Sutardja
IPC分类号： H03F1/52
CPC分类号： H03F1/52 , H03F1/523 , H03F3/45183 , H03F3/72 , H03F2200/372 , H03F2200/471 , H03F2200/78 , H03F2203/45544 , H03F2203/45622 , H03F2203/45638
摘要： A transmitter system includes a transmitter with a power amplifier. An antenna communicates with the power amplifier. A protection circuit generates a sensed signal that varies with an impedance of the antenna and reduces an output of the power amplifier in response to the sensed signal exceeding a predetermined threshold.
摘要翻译：发射机系统包括具有功率放大器的发射机。天线与功率放大器通信。保护电路产生随着天线的阻抗而变化的感测信号，并且响应于超过预定阈值的感测信号而减小功率放大器的输出。

13. 发明授权

US07653408B1 Self-adaptive transmit power control for wireless network 有权
标题翻译：用于无线网络的自适应发射功率控制
公开(公告)号：US07653408B1
公开(公告)日：2010-01-26
申请号：US10962376
申请日：2004-10-08
申请人： Milind Kopikare , Brian Bosso , Lawrence Tse
发明人： Milind Kopikare , Brian Bosso , Lawrence Tse
IPC分类号： H04B7/00
CPC分类号： H04W52/16
摘要： A wireless network apparatus includes a receive circuit, a transmit circuit, and a processor. The receive circuit receives a first signal over a wireless link. The first signal represents packets of first data. The transmit circuit transmits a second signal over the wireless link at a power level indicated by a transmit power control signal. The second signal represents packets of second data. The processor determines a link quality of the wireless link based on the first signal. The processor selects one of a plurality of link quality thresholds based on the power level. The processor compares the link quality to the selected one of the plurality of link quality thresholds. The processor generates the transmit power control signal based on the comparison.
摘要翻译：无线网络装置包括接收电路，发射电路和处理器。接收电路通过无线链路接收第一信号。第一个信号表示第一个数据的数据包。发射电路以由发射功率控制信号指示的功率电平在无线链路上发送第二信号。第二信号表示第二数据的分组。处理器基于第一信号来确定无线链路的链路质量。处理器基于功率电平来选择多个链路质量阈值中的一个。处理器将链路质量与所选择的多个链路质量阈值中的一个进行比较。处理器基于比较来生成发射功率控制信号。

14. 发明授权

US07463095B1 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：US07463095B1
公开(公告)日：2008-12-09
申请号：US11890738
申请日：2007-08-07
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： An analog signal processing circuit comprises a bias circuit, a first circuit including a control input that communicates with the bias circuit, a first terminal that generates an output current, and a second terminal, and a device that communicates with the second terminal of the first circuit, that includes a variable resistor, and that has a resistance that is modulated in response to an input signal to the analog signal processing circuit.
摘要翻译：模拟信号处理电路包括偏置电路，包括与偏置电路通信的控制输入的第一电路，产生输出电流的第一端子和第二端子，以及与第一端子的第二端子通信的装置电路，其包括可变电阻器，并且具有响应于模拟信号处理电路的输入信号而被调制的电阻。

15. 发明授权

US07167045B1 System and method for modifying output power of an information communication system 有权
标题翻译：用于修改信息通信系统的输出功率的系统和方法
公开(公告)号：US07167045B1
公开(公告)日：2007-01-23
申请号：US10861481
申请日：2004-06-07
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： H03G5/16 , H03F3/26
CPC分类号： H03G3/3042
摘要： A system for communicating information includes a variable gain amplifier (VGA) responsive to an input signal and a gain control signal for controlling a gain of the VGA. The system also includes a power amplifier responsive to the VGA. An output power level of the power amplifier is compared to a predetermined reference value to generate the gain control signal. The gain control signal is offset by a gain offset value. To change the output power level of the power amplifier from a first output power level to a second output power level, a first predetermined reference value and a first gain offset value associated with the first output power level are changed substantially concurrently to a second predetermined reference value and a second gain offset value, respectively, associated with the second output power level.
摘要翻译：用于传送信息的系统包括响应于输入信号的可变增益放大器（VGA）和用于控制VGA增益的增益控制信号。该系统还包括一个响应于VGA的功率放大器。将功率放大器的输出功率电平与预定参考值进行比较，以产生增益控制信号。增益控制信号被增益偏移值偏移。为了将功率放大器的输出功率电平从第一输出功率电平改变到第二输出功率电平，与第一输出功率电平相关联的第一预定参考值和第一增益偏移值基本同时地改变为第二预定参考值和与第二输出功率电平相关联的第二增益偏移值。

16. 发明授权

US07064600B1 Limit swing charge pump and method thereof 失效
标题翻译：限位摆动电荷泵及其方法
公开(公告)号：US07064600B1
公开(公告)日：2006-06-20
申请号：US10703375
申请日：2003-11-07
申请人： Jun Ming , Randy Tsang , Lawrence Tse
发明人： Jun Ming , Randy Tsang , Lawrence Tse
IPC分类号： G05F1/10
CPC分类号： H03L7/0896
摘要： A charge pump comprising a charge pump core including output switches. The charge pump core, in response to a drive signal, to generate a charge pump output. A limit swing generator, in response to an input signal, to generate the drive signal to control the charge pump core. The drive signal having voltage levels including a high level and a low level. The limit swing generator including at least one voltage generator to control the voltage levels of the drive signal such that the drive signal tracks a process variable of the output switches. The at least one voltage generator including at least one diode or diode connected device.
摘要翻译：一种电荷泵，包括包括输出开关的电荷泵芯。电荷泵芯，响应于驱动信号，产生电荷泵输出。极限摆动发生器响应于输入信号，产生驱动信号以控制电荷泵芯。具有包括高电平和低电平的电压电平的驱动信号。限位摆动发生器包括至少一个电压发生器，以控制驱动信号的电压电平，使得驱动信号跟踪输出开关的过程变量。所述至少一个电压发生器包括至少一个二极管或二极管连接的装置。

17. 发明授权

US06977444B1 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：US06977444B1
公开(公告)日：2005-12-20
申请号：US11034093
申请日：2005-01-12
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： H01L23/48 , H01L23/49 , H01L23/60 , H01L23/66
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 input circuit for an integrated circuit (IC), which is mounted on a package having an input pin, rejects signal energy at a first frequency. A first bondwire arranged on the package has one end that communicates with the pin and an opposite end that communicates with components of the IC. A second bondwire located on the package has one end that communicates with the pin and an opposite end that communicates with a capacitance. The capacitance and an inductance of the first and second bondwires resonate at the first frequency to reject signal energy at the first frequency. Bondwires are also used to eliminate external components such as resonant components and impedance matching circuits to reduce cost.
摘要翻译：用于集成电路（IC）的输入电路，其安装在具有输入引脚的封装上，以第一频率拒绝信号能量。布置在封装上的第一接合线具有与引脚连通的一端和与IC的部件连通的相对端。位于封装上的第二接合线具有与销连通的一端和与电容连通的相对端。第一和第二键合线的电容和电感以第一频率谐振以在第一频率处抑制信号能量。 Bondwires也用于消除诸如谐振元件和阻抗匹配电路的外部元件，以降低成本。

18. 发明授权

US06856200B1 Protection circuit and method for RF power amplifiers in WLAN tranceivers 有权
标题翻译： WLAN收发器中RF功率放大器的保护电路和方法
公开(公告)号：US06856200B1
公开(公告)日：2005-02-15
申请号：US10246870
申请日：2002-09-19
申请人： Shuran Wei , Lawrence Tse , Sehat Sutardja
发明人： Shuran Wei , Lawrence Tse , Sehat Sutardja
IPC分类号： H03C1/62 , H03F1/52 , H03F3/45 , H03F3/72
CPC分类号： H03F1/52 , H03F1/523 , H03F3/45183 , H03F3/72 , H03F2200/372 , H03F2200/471 , H03F2200/78 , H03F2203/45544 , H03F2203/45622 , H03F2203/45638
摘要： A protection circuit for a power amplifier of a radio frequency transmitter includes a sensing circuit that generates a sensed signal based on an output of the power amplifier. A reference signal generator generates a reference signal. A comparator communicates with the sensing circuit and the reference signal generator and outputs a first state when the reference signal exceeds the sensed signal and a second state when the sensed signal exceeds the reference signal. A turn off circuit turns off the power amplifier when the comparator is in the second state.
摘要翻译：用于射频发射机的功率放大器的保护电路包括基于功率放大器的输出产生感测信号的感测电路。参考信号发生器产生参考信号。比较器与检测电路和参考信号发生器进行通信，当参考信号超过感测信号时，比较器输出第一状态，当感测信号超过参考信号时，比较器输出第二状态。当比较器处于第二状态时，关断电路关闭功率放大器。

19. 发明授权

US06819187B1 Limit swing charge pump and method thereof 有权
标题翻译：限位摆动电荷泵及其方法
公开(公告)号：US06819187B1
公开(公告)日：2004-11-16
申请号：US10195047
申请日：2002-07-12
申请人： Jun Ming , Randy Tsang , Lawrence Tse
发明人： Jun Ming , Randy Tsang , Lawrence Tse
IPC分类号： H03L700
CPC分类号： H03L7/0896
摘要： A charge pump comprising a charge pump core including output switches. The charge pump core, in response to a drive signal, to generate a charge pump output. A limit swing generator, in response to an input signal, to generate the drive signal to control the charge pump core. The drive signal having voltage levels including a high level and a low level. The limit swing generator including at least one voltage generator to control the voltage levels of the drive signal such that the drive signal tracks a process variable of the output switches.
摘要翻译：一种电荷泵，包括包括输出开关的电荷泵芯。电荷泵芯，响应于驱动信号，产生电荷泵输出。极限摆动发生器响应于输入信号，产生驱动信号以控制电荷泵芯。具有包括高电平和低电平的电压电平的驱动信号。限位摆动发生器包括至少一个电压发生器，以控制驱动信号的电压电平，使得驱动信号跟踪输出开关的过程变量。

20. 发明授权

US06747520B1 Limit swing charge pump and method thereof 有权
标题翻译：限位摆动电荷泵及其方法
公开(公告)号：US06747520B1
公开(公告)日：2004-06-08
申请号：US10219225
申请日：2002-08-13
申请人： Jun Ming , Randy Tsang , Lawrence Tse
发明人： Jun Ming , Randy Tsang , Lawrence Tse
IPC分类号： H03L700
CPC分类号： H03L7/0896
摘要： A charge pump comprising a charge pump core including output switches. The charge pump core, in response to a drive signal, to generate a charge pump output. A limit swing generator, in response to an input signal, to generate the drive signal to control the charge pump core. The drive signal having voltage levels including a high level and a low level. The limit swing generator including at least one voltage generator to control the voltage levels of the drive signal such that the drive signal tracks a process variable of the output switches. The at least one voltage generator including at least one diode or diode connected device.
摘要翻译：一种电荷泵，包括包括输出开关的电荷泵芯。电荷泵芯，响应于驱动信号，产生电荷泵输出。极限摆动发生器响应于输入信号，产生驱动信号以控制电荷泵芯。具有包括高电平和低电平的电压电平的驱动信号。限位摆动发生器包括至少一个电压发生器，以控制驱动信号的电压电平，使得驱动信号跟踪输出开关的过程变量。所述至少一个电压发生器包括至少一个二极管或二极管连接的装置。

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