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1. 发明授权

US07463103B2 Chaotic signal generator for ultra wide band communication system 有权
标题翻译：用于超宽带通信系统的混沌信号发生器
公开(公告)号：US07463103B2
公开(公告)日：2008-12-09
申请号：US11428786
申请日：2006-07-05
申请人： Kwang Du Lee , Chang Soo Yang , Kyu Hwan An , Kyuong Ree Kim
发明人： Kwang Du Lee , Chang Soo Yang , Kyu Hwan An , Kyuong Ree Kim
IPC分类号： H03L7/07
CPC分类号： H04B1/7174
摘要： In a chaotic signal generator, a first signal generator generates a first signal. The first signal includes a first fundamental wave having a preset first frequency and a plurality of harmonic waves of the first fundamental wave. A second signal generator generates a second signal. The second signal includes a second fundamental wave having a preset second frequency and a plurality of harmonic waves of the second fundamental wave. Also, a mixer mixes the first signal from the first signal generator with the second signal from the second signal generator to generate a chaotic signal having a sum frequency of the first and second signals and the harmonic waves of the first and second signals. A filter passes a signal of a preset band out of the chaotic signal from the mixer.
摘要翻译：在混沌信号发生器中，第一信号发生器产生第一信号。第一信号包括具有预设第一频率和第一基波的多个谐波的第一基波。第二信号发生器产生第二信号。第二信号包括具有预设的第二频率和第二基波的多个谐波的第二基波。此外，混频器将来自第一信号发生器的第一信号与来自第二信号发生器的第二信号混合，以产生具有第一和第二信号的和频和第一和第二信号的谐波的混沌信号。滤波器将来自混频器的混沌信号中的预设频带的信号传递出去。

2. 发明申请

US20070075873A1 LOCATION AWARENESS SYSTEM USING RFID AND WIRELESS CONNECTIVITY APPARATUS FOR LOCATION AWARENESS SYSTEM USED THEREIN 审中-公开
标题翻译：使用RFID和无线连接装置的位置感知系统用于位置识别系统
公开(公告)号：US20070075873A1
公开(公告)日：2007-04-05
申请号：US11537201
申请日：2006-09-29
申请人： Chang Soo Yang , Jeong Suk Lee , Sang Do Cho , Kwang Du Lee , Wan Chul Yang , Kyu Hwan An , Jong In Na , Ki Hwan Kim , Sang Gyu Park , Sang Yub Lee
发明人： Chang Soo Yang , Jeong Suk Lee , Sang Do Cho , Kwang Du Lee , Wan Chul Yang , Kyu Hwan An , Jong In Na , Ki Hwan Kim , Sang Gyu Park , Sang Yub Lee
IPC分类号： G08B5/22
CPC分类号： H04W64/00 , G01S5/0081 , G01S5/0226 , G01S5/14 , G01S13/878 , G07C5/008 , H04W24/00 , H04W48/16
摘要： A location awareness system using RFID and a wireless communication apparatus for the location awareness are provided. The location awareness system includes a RFID tag, a wireless communication apparatus for location awareness, more than three anchors, a coordinator, and a server. The wireless communication apparatus identifies the target object with the RFID attached through communicating with the RFID tag. The anchors receive information about the identified target object and measuring a distance by communication with the wireless communication apparatus using a predetermined wireless communication scheme. The coordinator collects the measure distance and the information from each of the anchors. The server calculates a location of the target object by receiving information about the measured distances and the target objects from the coordinator and calculating the location of the wireless communication apparatus using the received information.
摘要翻译：提供了使用RFID的位置感知系统和用于位置感知的无线通信装置。位置感知系统包括RFID标签，用于位置感知的无线通信装置，三个以上的锚点，协调器和服务器。无线通信装置通过与RFID标签通信来附着RFID来识别目标对象。锚点通过使用预定的无线通信方案与无线通信装置进行通信来接收关于所识别的目标对象的信息并测量距离。协调员从每个锚收集测量距离和信息。服务器通过从协调器接收关于测量距离的信息和目标对象并使用接收到的信息来计算无线通信装置的位置来计算目标对象的位置。

3. 发明申请

US20110221528A1 BALUN FUNCTION WITH REFERENCE ENHANCEMENT IN SINGLE-ENDED PORT 有权
标题翻译：具有单端口参考增强的BALUN功能
公开(公告)号：US20110221528A1
公开(公告)日：2011-09-15
申请号：US12722966
申请日：2010-03-12
申请人： Kyu Hwan An , Yunseo Park , Chang-Ho Lee
发明人： Kyu Hwan An , Yunseo Park , Chang-Ho Lee
IPC分类号： H03F1/56
CPC分类号： H03F3/45475 , H03F2200/09 , H03F2203/45731
摘要： Systems and methods are provided for a transformer or balun function with reference enhancement. The systems and methods may include a transformer having at least a primary winding and a secondary winding for reference enhancement, where the primary winding includes a center tap, where the secondary winding includes a first port and a second port, and an electrical connection that electrically connects the second port and the center tap of the primary winding to provide a common reference for the primary winding and the secondary winding. The primary winding of the transformer may be configured to receive differential outputs of a power amplifier, and the transformer may be configured to convert the differential outputs from a balanced signal to an unbalanced signal available at the first port of the secondary winding.
摘要翻译：为变压器或平衡 - 不平衡变换器提供了参考增强的系统和方法。系统和方法可以包括具有至少初级绕组和用于参考增强的次级绕组的变压器，其中初级绕组包括中心抽头，其中次级绕组包括第一端口和第二端口，以及电连接，其电气连接初级绕组的第二端口和中心抽头以为初级绕组和次级绕组提供公共参考。变压器的初级绕组可以被配置为接收功率放大器的差分输出，并且变压器可以被配置为将来自平衡信号的差分输出转换成在次级绕组的第一端口处可用的不平衡信号。

4. 发明申请

US20110221522A1 SHARING OF INDUCTOR INTERSTAGE MATCHING IN PARALLEL AMPLIFICATION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统并联放大系统中电感器间隔匹配的共享
公开(公告)号：US20110221522A1
公开(公告)日：2011-09-15
申请号：US12722993
申请日：2010-03-12
申请人： Kyu Hwan An , Yunseo Park , Wangmyong Woo , Chang-Ho Lee
发明人： Kyu Hwan An , Yunseo Park , Wangmyong Woo , Chang-Ho Lee
IPC分类号： H03F1/00
CPC分类号： H03F3/24 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/45179 , H03F2200/387 , H03F2200/411 , H03F2200/534 , H03F2200/541 , H03F2203/21139 , H03F2203/21142
摘要： A power amplifier system can include a plurality of driver amplifiers and a plurality of power amplifiers, where each driver amplifier and power amplifier includes at least one respective input port and at least one respective output port. The power amplifier system also includes a shared inductive device that provides common interstage matching between the respective output ports of the plurality of driver amplifiers and the respective input ports of the plurality of power amplifiers. The shared inductive device can be a shared inductor or a shared transformer.
摘要翻译：功率放大器系统可以包括多个驱动器放大器和多个功率放大器，其中每个驱动器放大器和功率放大器包括至少一个相应的输入端口和至少一个相应的输出端口。功率放大器系统还包括共享电感装置，其在多个驱动器放大器的相应输出端口和多个功率放大器的相应输入端口之间提供共同的级间匹配。共享电感器件可以是共享电感器或共享变压器。

5. 发明授权

US07768353B2 Systems and methods for switching mode power amplifier control 有权
标题翻译：用于开关模式功率放大器控制的系统和方法
公开(公告)号：US07768353B2
公开(公告)日：2010-08-03
申请号：US12138965
申请日：2008-06-13
申请人： Jaejoon Chang , Ki Seok Yang , Kyu Hwan An , Wangmyong Woo , Chang-Ho Lee , Younsuk Kim , Hyogun Bae , Kijoong Kim , Shinichi Iizuka
发明人： Jaejoon Chang , Ki Seok Yang , Kyu Hwan An , Wangmyong Woo , Chang-Ho Lee , Younsuk Kim , Hyogun Bae , Kijoong Kim , Shinichi Iizuka
IPC分类号： H03G3/10
CPC分类号： H03F1/0272 , H03F3/24 , H03F2200/408 , H03F2200/411 , H03F2200/462
摘要： Embodiments of the invention may provide for enhancement systems and methods for a power amplifier output control system. In an example embodiment, driver amplifier control may be provided in conjunction with power amplifier control to improve the power efficiency and/or dynamic range of the transmitter system. Furthermore, control over the driver amplifier may allow for relaxed power control slope, which may lessens the burden of digital to analog converters (DACs) in transmitter systems such as cellular transmitter systems. Also, systems and methods in accordance with example embodiments of the invention may provide a less sensitive solution to operational environment variations such as temperature, battery power voltage and implementation IC process.
摘要翻译：本发明的实施例可以提供用于功率放大器输出控制系统的增强系统和方法。在示例实施例中，可以结合功率放大器控制来提供驱动器放大器控制，以提高发射机系统的功率效率和/或动态范围。此外，对驱动器放大器的控制可以允许松弛的功率控制斜率，这可以减轻诸如蜂窝发射机系统的发射机系统中的数模转换器（DAC）的负担。而且，根据本发明的示例性实施例的系统和方法可以提供对诸如温度，电池电源电压和实施IC过程的操作环境变化的较不敏感的解决方案。

6. 发明申请

US20100148866A1 Systems and Methods for Power Amplifiers with Voltage Boosting Multi-Primary Transformers 有权
标题翻译：具有电压提升多主变压器功率放大器的系统和方法
公开(公告)号：US20100148866A1
公开(公告)日：2010-06-17
申请号：US12711480
申请日：2010-02-24
申请人： Chang-Ho Lee , Kyu Hwan An , Ki Seok Yang , Jaejoon Chang , Wangmyong Woo , Younsuk Kim , Haksun Kim , Ockgoo Lee , Dong Ho Lee , Hyungwook Kim , Joy Laskar
发明人： Chang-Ho Lee , Kyu Hwan An , Ki Seok Yang , Jaejoon Chang , Wangmyong Woo , Younsuk Kim , Haksun Kim , Ockgoo Lee , Dong Ho Lee , Hyungwook Kim , Joy Laskar
IPC分类号： H03F1/00 , H01F41/06
CPC分类号： H03F3/211 , H01F2017/0046 , H03F1/3211 , H03F3/195 , H03F3/45183 , H03F3/45475 , H03F3/604 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03F2203/21139 , H03F2203/21157 , H03F2203/45704 , H03F2203/45706 , H03F2203/45731 , Y10T29/49071
摘要： Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port. The systems and methods may also include a plurality of primary windings each having a first number of turns, where each primary winding is connected to at least one output port of the plurality of power amplifiers, and a single secondary winding inductively coupled to the plurality of primary windings, where the secondary winding includes a second number of turns greater than the first number of turns.
摘要翻译：可以为功率放大器系统提供系统和方法。系统和方法可以包括多个功率放大器，其中每个功率放大器包括至少一个输出端口。系统和方法还可以包括多个初级绕组，每个初级绕组具有第一圈数，其中每个初级绕组连接到多个功率放大器的至少一个输出端口，以及感应耦合到多个初级绕组，其中次级绕组包括大于第一匝数的第二匝数。

7. 发明申请

US20080164941A1 Systems and methods for power amplifiers with voltage boosting multi-primary transformers 有权
标题翻译：具有升压型多原子变压器的功率放大器的系统和方法
公开(公告)号：US20080164941A1
公开(公告)日：2008-07-10
申请号：US11964646
申请日：2007-12-26
申请人： Chang-Ho Lee , Kyu Hwan An , Ki Seok Yang , Jaejoon Chang , Wangmyong Woo , Younsuk Kim , Haksun Kim , Ockgoo Lee , Dong Ho Lee , Hyungwook Kim , Joy Laskar
发明人： Chang-Ho Lee , Kyu Hwan An , Ki Seok Yang , Jaejoon Chang , Wangmyong Woo , Younsuk Kim , Haksun Kim , Ockgoo Lee , Dong Ho Lee , Hyungwook Kim , Joy Laskar
IPC分类号： H03F3/68 , H03F3/00
CPC分类号： H03F3/211 , H01F2017/0046 , H03F1/3211 , H03F3/195 , H03F3/45183 , H03F3/45475 , H03F3/604 , H03F2200/451 , H03F2200/537 , H03F2200/541 , H03F2203/21139 , H03F2203/21157 , H03F2203/45704 , H03F2203/45706 , H03F2203/45731 , Y10T29/49071
摘要： Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port. The systems and methods may also include a plurality of primary windings each having a first number of turns, where each primary winding is connected to at least one output port of the plurality of power amplifiers, and a single secondary winding inductively coupled to the plurality of primary windings, where the secondary winding includes a second number of turns greater than the first number of turns.
摘要翻译：可以为功率放大器系统提供系统和方法。系统和方法可以包括多个功率放大器，其中每个功率放大器包括至少一个输出端口。系统和方法还可以包括多个初级绕组，每个初级绕组具有第一圈数，其中每个初级绕组连接到多个功率放大器的至少一个输出端口，以及感应耦合到多个初级绕组，其中次级绕组包括大于第一匝数的第二匝数。

8. 发明授权

US08125276B2 Sharing of inductor interstage matching in parallel amplification system for wireless communication systems 有权
标题翻译：在无线通信系统的并行放大系统中共享电感级间匹配
公开(公告)号：US08125276B2
公开(公告)日：2012-02-28
申请号：US12722993
申请日：2010-03-12
申请人： Kyu Hwan An , Yunseo Park , Wangmyong Woo , Chang-Ho Lee
发明人： Kyu Hwan An , Yunseo Park , Wangmyong Woo , Chang-Ho Lee
IPC分类号： H03F3/68 , H03F3/191
CPC分类号： H03F3/24 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/45179 , H03F2200/387 , H03F2200/411 , H03F2200/534 , H03F2200/541 , H03F2203/21139 , H03F2203/21142
摘要： A power amplifier system can include a plurality of driver amplifiers and a plurality of power amplifiers, where each driver amplifier and power amplifier includes at least one respective input port and at least one respective output port. The power amplifier system also includes a shared inductive device that provides common interstage matching between the respective output ports of the plurality of driver amplifiers and the respective input ports of the plurality of power amplifiers. The shared inductive device can be a shared inductor or a shared transformer.
摘要翻译：功率放大器系统可以包括多个驱动器放大器和多个功率放大器，其中每个驱动器放大器和功率放大器包括至少一个相应的输入端口和至少一个相应的输出端口。功率放大器系统还包括共享电感装置，其在多个驱动器放大器的相应输出端口和多个功率放大器的相应输入端口之间提供共同的级间匹配。共享电感器件可以是共享电感器或共享变压器。

9. 发明授权

US08106712B2 Systems and methods for self-mixing adaptive bias circuit for power amplifier 有权
标题翻译：用于功率放大器的自混合自适应偏置电路的系统和方法
公开(公告)号：US08106712B2
公开(公告)日：2012-01-31
申请号：US12623136
申请日：2009-11-20
申请人： Dong Ho Lee , Kyu Hwan An , Chang-Ho Lee , Joy Laskar
发明人： Dong Ho Lee , Kyu Hwan An , Chang-Ho Lee , Joy Laskar
IPC分类号： H03F3/04
CPC分类号： H03F1/3205 , H03F1/0261 , H03F1/223 , H03F3/45475 , H03F2200/18
摘要： Systems and methods for providing a self-mixing adaptive bias circuit that may include a mixer, low-pass filter or a phase shifter, and a bias feeding block. The self-mixing adaptive bias circuit may generate an adaptive bias signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit increases the bias voltage or bias current such that the amplifier will save current consumption at low power operation levels and obtain better linearity at high power operation levels compared to conventional biasing techniques. Moreover, the adaptive bias output signal can be used to cancel the third-order intermodulation terms (IM3) to further enhance the linearity as a secondary effect.
摘要翻译：用于提供可以包括混频器，低通滤波器或移相器的自混合自适应偏置电路的系统和方法以及偏置馈电块。自混合自适应偏置电路可以根据输入信号功率电平产生自适应偏置信号。随着输入功率电平上升，自适应偏置电路增加了偏置电压或偏置电流，使得放大器可以在低功率运行电平下节省电流消耗，并且与常规偏置技术相比，在高功率运行电平下获得更好的线性度。此外，自适应偏置输出信号可以用于消除三阶互调项（IM3），以进一步增强作为次级效应的线性。

10. 发明授权

US07961048B2 Integrated power amplifiers for use in wireless communication devices 有权
标题翻译：用于无线通信设备的集成功率放大器
公开(公告)号：US07961048B2
公开(公告)日：2011-06-14
申请号：US12623164
申请日：2009-11-20
申请人： Michael Alan Oakley , Dong Ho Lee , Kyu Hwan An , Chang-Ho Lee , Joy Laskar
发明人： Michael Alan Oakley , Dong Ho Lee , Kyu Hwan An , Chang-Ho Lee , Joy Laskar
IPC分类号： H03F3/68
CPC分类号： H03F3/45188 , H03F1/0288 , H03F3/211 , H03F3/604
摘要： An integrated power amplifier can include a carrier amplifier, where the carrier amplifier is connected to a first quarter wave transformer at the input of the carrier amplifier. In addition, the power amplifier can further include at least one peaking amplifier connected in parallel with the carrier amplifier; a first differential combining structure, where the first combining structure includes a first plurality of quarter wave transformers that are configured to combine respective first differential outputs of the carrier amplifier in phase to generate a first single-ended output signal, and a second differential combining structure, where the second combining structures includes a second plurality of quarter wave transformers that are configured to combine respective second differential outputs of the at least one peaking amplifier in phase to generate a second single-ended output signal, where the first single-ended output signal and the second single-ended output signal are combinable in-phase to provide an overall output.
摘要翻译：集成功率放大器可以包括载波放大器，其中载波放大器在载波放大器的输入处连接到第一四分之一波长的变压器。此外，功率放大器还可以包括与载波放大器并联连接的至少一个峰值放大器; 第一差分组合结构，其中所述第一组合结构包括第一多个四分之一波长变换器，其被配置为相位地组合所述载波放大器的相应的第一差分输出以产生第一单端输出信号，以及第二差分组合结构，其中所述第二组合结构包括第二多个四分之一波长变换器，其被配置为组合所述至少一个峰值放大器的相应的第二差分输出以产生第二单端输出信号，其中所述第一单端输出信号并且第二单端输出信号可同步地组合以提供总体输出。

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