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61. 发明授权

US07230491B1 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：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。

62. 发明授权

US07215933B1 Local transmitter output power control system for wireless applications 有权
标题翻译：本地发射机输出功率控制系统，适用于无线应用
公开(公告)号：US07215933B1
公开(公告)日：2007-05-08
申请号：US10253364
申请日：2002-09-24
申请人： Lawrence Tse , Shuran Wei , George Chien
发明人： Lawrence Tse , Shuran Wei , George Chien
IPC分类号： H04Q11/12
CPC分类号： H04W52/08 , H04W52/04 , H04W52/286
摘要： A local transmitter power control system for a radio frequency transmitter of a wireless local area network device includes a transmitter that transmits RF signals. A sensor detects at least one of amplitude and power of said RF signals and generates a sensed signal. The gain adjuster includes a comparator that receives an amplitude signal and/or a power signal detected by the sensor. The comparator compares the amplitude and/or power to the threshold signal. The gain of the transmitter is adjusted accordingly.
摘要翻译：用于无线局域网设备的射频发射机的本地发射机功率控制系统包括发射RF信号的发射机。传感器检测所述RF信号的幅度和功率中的至少一个并产生感测信号。增益调节器包括一个比较器，它接收由传感器检测到的振幅信号和/或功率信号。比较器将幅度和/或功率与阈值信号进行比较。变送器的增益相应调整。

63. 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。

64. 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。

65. 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.

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