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31. 发明授权

US07006824B1 Frame/packet-based calibration for wireless transceivers 有权
标题翻译：无线收发器的帧/分组校准
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。

32. 发明授权

US06987326B1 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：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。

33. 发明授权

US06911739B1 Methods and apparatus for improving high frequency input/output performance 有权
公开(公告)号：US06911739B1
公开(公告)日：2005-06-28
申请号：US10397402
申请日：2003-03-26
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.

34. 发明授权

US08731122B1 Spurious component reduction 有权
标题翻译：杂散成分减少
公开(公告)号：US08731122B1
公开(公告)日：2014-05-20
申请号：US13154205
申请日：2011-06-06
申请人： King Chun Tsai
发明人： King Chun Tsai
IPC分类号： H04B1/10
CPC分类号： H04L25/03828 , H04L27/364
摘要： A filter includes, in at least one aspect, one or more differential inputs to receive one or more differential input signals, a first filter stage to provide one or more primary poles corresponding to a first frequency associated with the one or more differential input signals, a second filter stage coupled with the first filter stage to provide one or more secondary poles corresponding to a second frequency associated with the one or more differential input signals, the second frequency and the first frequency having a predefined relationship, and one or more differential outputs coupled with the second filter stage to provide one or more differential output signals.
摘要翻译：滤波器在至少一个方面包括用于接收一个或多个差分输入信号的一个或多个差分输入端，第一滤波器级以提供一个或多个对应于与一个或多个差分输入信号相关联的第一频率的主极，第二滤波器级与第一滤波器级耦合以提供对应于与一个或多个差分输入信号相关联的第二频率的一个或多个辅助极，第二频率和第一频率具有预定关系，以及一个或多个差分输出与第二滤波器级耦合以提供一个或多个差分输出信号。

35. 发明授权

US08014477B1 Receiver employing selectable A/D sample clock frequency 有权
标题翻译：接收机采用可选择的A / D采样时钟频率
公开(公告)号：US08014477B1
公开(公告)日：2011-09-06
申请号：US11592357
申请日：2006-11-02
申请人： King Chun Tsai , Patrick Clement , David Cousinard
发明人： King Chun Tsai , Patrick Clement , David Cousinard
IPC分类号： H03D1/04
CPC分类号： H03M3/458 , H01L51/524 , H03M1/004 , H03M1/12
摘要： A receiver is set forth that includes a tuner circuit and a converter circuit. The tuner circuit provides an analog signal corresponding to a modulated signal that is received on a selected channel. The converter circuit includes a sample clock that is used to convert the analog signal to a digital signal at a conversion rate corresponding to the frequency of the sample clock. The sample clock is selectable between at least two different clock frequencies.
摘要翻译：提出了包括调谐器电路和转换器电路的接收器。调谐器电路提供对应于在所选频道上接收的调制信号的模拟信号。转换器电路包括采样时钟，该采样时钟用于以与采样时钟的频率对应的转换速率将模拟信号转换为数字信号。采样时钟可在至少两个不同的时钟频率之间选择。

36. 发明授权

US07890132B2 Systems and methods for calibrating power regulated communication circuitry 有权
标题翻译：用于校准功率调节通信电路的系统和方法
公开(公告)号：US07890132B2
公开(公告)日：2011-02-15
申请号：US12775694
申请日：2010-05-07
申请人： George Chien , King Chun Tsai , Sang Won Son , Alireza Shirvani Mahdavi , Qiong Sun , Leycheoh Lim
发明人： George Chien , King Chun Tsai , Sang Won Son , Alireza Shirvani Mahdavi , Qiong Sun , Leycheoh Lim
IPC分类号： H04B7/00
CPC分类号： H04W52/52 , H04B17/102 , H04B17/13
摘要： Systems and methods are provided for calibrating the control mechanism in a communication circuit to allow the communication circuit to maintain a desired output power level. The communication circuit includes a variable gain adjustment circuit and a power amplifier, which operate together to provide an output power level. A control circuit controls the variable gain adjustment circuit based on a default gain parameter, a high power threshold, and a low power threshold. A calibration circuit in the control circuit calibrates a default gain parameter to provide a desired output power. A power detector can detect the desired output power level to provide an output power measurement. The calibration circuit calibrates upper and lower power thresholds to provide an acceptable range of power variation around the output power measurement.
摘要翻译：提供了用于校准通信电路中的控制机构以允许通信电路保持期望的输出功率电平的系统和方法。通信电路包括可变增益调整电路和功率放大器，其一起工作以提供输出功率电平。控制电路基于默认增益参数，高功率阈值和低功率阈值来控制可变增益调整电路。控制电路中的校准电路校准默认增益参数以提供期望的输出功率。功率检测器可以检测期望的输出功率电平以提供输出功率测量。校准电路校准上限和下限功率阈值，以提供输出功率测量周围功率变化范围的可接受范围。

37. 发明授权

US07863976B1 Adjustable segmented power amplifier 有权
标题翻译：可调分段功率放大器
公开(公告)号：US07863976B1
公开(公告)日：2011-01-04
申请号：US12212598
申请日：2008-09-17
申请人： Wayne A. Loeb , King Chun Tsai
发明人： Wayne A. 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 stage in an amplifier. The adjustable stage generally comprises a first common node, a second common node and a plurality of independently selectable parallel amplifier segments. Each of the parallel segments may have an input at the first common node and an output at the second common node, a transistor and an inductor to resonate with a capacitance at a base of the transistor. The present invention advantageously provides a relatively compact power amplifier with an extended output power range at which the amplifier is highly efficient. In preferred embodiments, the input and output matching characteristics are generally independent of the number of selected output amplifier segments.
摘要翻译：放大器中的可调节级。可调节级通常包括第一公共节点，第二公共节点和多个可独立选择的并行放大器段。每个并行段可以具有在第一公共节点处的输入和第二公共节点处的输出，晶体管和电感器，以与晶体管的基极处的电容谐振。本发明有利地提供了一种具有扩展输出功率范围的相对紧凑的功率放大器，在该功率范围内放大器是高效率的。在优选实施例中，输入和输出匹配特性通常与选择的输出放大器段的数量无关。

38. 发明授权

US07761067B1 Iterative filter circuit calibration 失效
标题翻译：迭代滤波电路校准
公开(公告)号：US07761067B1
公开(公告)日：2010-07-20
申请号：US10830117
申请日：2004-04-21
申请人： King Chun Tsai , Sang Won Son , Wayne A. Loeb
发明人： King Chun Tsai , Sang Won Son , Wayne A. Loeb
IPC分类号： H01Q11/12 , H04B1/04
CPC分类号： H04B1/30 , H03H7/12 , H03H2007/013 , H03H2210/012 , H03H2210/015 , H03J2200/10 , H04B1/0475 , H04B1/1638
摘要： Apparatus, systems, and methods implementing techniques for calibrating a filter circuit. A comparator generates an output based on a filter output amplitude signal and a reference amplitude signal. A calibration logic unit receives the comparator output and produces a component code that is used by the filter circuit to adjust one or more component values.
摘要翻译：用于校准滤波电路的技术的装置，系统和方法。比较器基于滤波器输出幅度信号和参考幅度信号产生输出。校准逻辑单元接收比较器输出并产生由滤波器电路用于调整一个或多个分量值的分量代码。

39. 发明授权

US07190230B1 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：US07190230B1
公开(公告)日：2007-03-13
申请号：US11435995
申请日：2006-05-17
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： H03F3/193 , H03F1/223
摘要： A low noise amplifier (LNA) comprises an amplifier having an inverting input, a non-inverting input and an output. A first transistor has a control input that communicates with said output of said amplifier, a first terminal that generates a LNA output current and a second terminal that communicates with said inverting input. A device communicates with said second terminal of said first transistor, includes an output and has a resistance that is modulated in response to an input voltage to said LNA. The device is a variable resistor.
摘要翻译：低噪声放大器（LNA）包括具有反相输入，非反相输入和输出的放大器。第一晶体管具有与所述放大器的所述输出通信的控制输入端，产生LNA输出电流的第一端子和与所述反相输入端通信的第二端子。与所述第一晶体管的所述第二端子通信的装置包括输出端，并具有响应于所述LNA的输入电压而被调制的电阻。该器件是一个可变电阻器。

40. 发明授权

US07177620B1 Mixer constant linear range biasing apparatus and method 有权
标题翻译：混合器恒定线性范围偏置装置及方法
公开(公告)号：US07177620B1
公开(公告)日：2007-02-13
申请号：US10388920
申请日：2003-03-14
申请人： King Chun Tsai , Lawrence Tse
发明人： King Chun Tsai , Lawrence Tse
IPC分类号： H04B1/28 , H04B1/26
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0043 , H03D2200/0084 , H03D2200/0096
摘要： A Gilbert cell mixer for a wireless transceiver includes a first stage that performs voltage to current conversions and that includes first and second transistors that are operated in a saturation region and third and fourth transistors that are operated in a triode region. A second stage communicates with the first stage and that performs frequency conversion. A biasing circuit communicates with the first stage to maintain a substantially constant input linear range over temperature and process variations.
摘要翻译：用于无线收发器的吉尔伯特单元混合器包括执行电压到电流转换的第一级，并且包括在饱和区域中操作的第一和第二晶体管以及在三极管区域中操作的第三和第四晶体管。第二级与第一级通信并执行频率转换。偏置电路与第一级通信，以保持温度和过程变化之间基本恒定的输入线性范围。

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