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31. 发明申请

US20090174515A1 Compact Multiple Transformers 有权
标题翻译：紧凑型多变压器
公开(公告)号：US20090174515A1
公开(公告)日：2009-07-09
申请号：US11970995
申请日：2008-01-08
申请人： Dong Ho Lee , Ki Seok Yang , Chang-Ho Lee , Haksun Kim , Joy Laskar
发明人： Dong Ho Lee , Ki Seok Yang , Chang-Ho Lee , Haksun Kim , Joy Laskar
IPC分类号： H01F27/28
CPC分类号： H01F27/2804
摘要： Example embodiments of the invention may provide systems and methods for multiple transformers. The systems and methods may include a first transformer that may include a first primary winding and a first secondary winding, where the first primary winding may be inductively coupled to the first secondary winding, where the first transformer may be associated with a first rotational current flow direction in the first primary winding. The systems and methods may further include a second transformer that may include a second primary winding and a second secondary winding, where the second primary winding may be inductively coupled to the second secondary winding, where the second transformer may be associated with a second rotational current flow direction opposite the first rotational current flow direction in the second primary winding, where a first section of the first primary winding may be positioned adjacent to a second section of the second primary winding, and where the adjacent first and second sections may include a substantially same first linear current flow direction.
摘要翻译：本发明的示例性实施例可以提供用于多个变压器的系统和方法。系统和方法可以包括可以包括第一初级绕组和第一次级绕组的第一变压器，其中第一初级绕组可以感应耦合到第一次级绕组，其中第一变压器可以与第一转子电流方向在第一次初级绕组。所述系统和方法还可以包括可包括第二初级绕组和第二次级绕组的第二变压器，其中第二初级绕组可以感应耦合到第二次级绕组，其中第二变压器可以与第二转子电流相关联流动方向与第二初级绕组中的第一旋转电流流动方向相反，其中第一初级绕组的第一部分可以邻近第二初级绕组的第二部分定位，并且其中相邻的第一和第二部分可以包括基本上相同的第一线性电流流动方向。

32. 发明申请

US20090079509A1 LC QUADRATURE OSCILLATOR HAVING PHASE AND AMPLITUDE MISMATCH COMPENSATOR 失效
标题翻译：具有相位和幅度误差补偿器的LC QUADRATURE振荡器
公开(公告)号：US20090079509A1
公开(公告)日：2009-03-26
申请号：US11859523
申请日：2007-09-21
申请人： Sangjin Byun , Chang-Ho Lee , Haksun Kim , Joy Laskar
发明人： Sangjin Byun , Chang-Ho Lee , Haksun Kim , Joy Laskar
IPC分类号： H03B5/18 , H03K3/03
CPC分类号： H03B27/00 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B2200/0078
摘要： Embodiments of the invention may provide for an LC quadrature oscillator that includes two LC oscillators that are cross-coupled with each other to generate I/Q clock signals and a phase and amplitude mismatch compensator. The phase and amplitude mismatch detector may include an amplitude mismatch detectors a transconductor, and a capacitor for compensating for both phase and amplitude mismatches between I/Q clock signals generated in the LC quadrature oscillator.
摘要翻译：本发明的实施例可以提供一种LC正交振荡器，其包括彼此交叉耦合以产生I / Q时钟信号的两个LC振荡器以及相位和幅度失配补偿器。相位和幅度失配检测器可以包括跨导体的幅度失配检测器和用于补偿在LC正交振荡器中产生的I / Q时钟信号之间的相位和幅度失配的电容器。

33. 发明申请

US20070281629A1 Systems, Methods and Apparatuses for Complementary Metal Oxide Semiconductor (CMOS) Antenna Switches Using Switched Resonators 有权
标题翻译：使用开关谐振器的互补金属氧化物半导体（CMOS）天线开关的系统，方法和装置
公开(公告)号：US20070281629A1
公开(公告)日：2007-12-06
申请号：US11754103
申请日：2007-05-25
申请人： Minsik Ahn , Chang-Ho Lee , Jaejoon Chang , Wangmyong Woo , Haksun Kim , Joy Laskar
发明人： Minsik Ahn , Chang-Ho Lee , Jaejoon Chang , Wangmyong Woo , Haksun Kim , Joy Laskar
IPC分类号： H04B1/44
CPC分类号： H04B1/48
摘要： Systems and methods may be provided for a CMOS RF antenna switch. The systems and methods for the CMOS RF antenna switch may include an antenna that is operative to transmit and receive signals over at least one radio frequency (RF) band, and a transmit switch coupled to the antenna, where the transmit switch is enabled to transmit a respective first signal to the antenna and disabled to prevent transmission of the first signal to the antenna the systems and methods for the CMOS RF antenna switch may further include a receiver switch coupled to the antenna, where the receiver switch forms a filter when enabled and a resonant circuit when disabled, where the filter provides for reception of a second signal received by the antenna, and where the resonant circuit blocks reception of at least the first signal.
摘要翻译：可以为CMOS RF天线开关提供系统和方法。 CMOS RF天线开关的系统和方法可以包括可操作以通过至少一个射频（RF）频带发送和接收信号的天线，以及耦合到天线的发射开关，其中发射开关能够传输对天线的相应的第一信号并且禁止阻止第一信号传输到天线，用于CMOS RF天线开关的系统和方法还可以包括耦合到天线的接收器开关，其中接收器开关在启用时形成滤波器，并且在禁用时的谐振电路，其中滤波器提供用于接收由天线接收的第二信号，并且其中谐振电路阻止至少第一信号的接收。

34. 发明授权

US07936215B2 Multi-segment primary and multi-turn secondary transformer for power amplifier systems 有权
标题翻译：用于功率放大器系统的多段主，多匝二次变压器
公开(公告)号：US07936215B2
公开(公告)日：2011-05-03
申请号：US12416268
申请日：2009-04-01
申请人： Chang-Ho Lee , Ockgoo Lee , Jeonghu Han , Kyu Hwan An , Hyungwook Kim , Dong Ho Lee , Ki Seok Yang , Haksun Kim , Joy Laskar
发明人： Chang-Ho Lee , Ockgoo Lee , Jeonghu Han , Kyu Hwan An , Hyungwook Kim , Dong Ho Lee , Ki Seok Yang , Haksun Kim , Joy Laskar
IPC分类号： H03F1/00
CPC分类号： H03F1/565 , H01F27/2804 , H03F3/195 , H03F3/211 , H03F3/45475 , H03F2200/387 , H03F2200/391 , H03F2200/399 , H03F2200/402 , H03F2200/451 , H03F2200/541 , H03F2203/45138 , Y10T29/5313
摘要： Embodiments of the invention may provide for power amplifier systems and methods. The systems and methods may include a power amplifier that generates a first differential output signal and a second differential output signal, a primary winding comprised of a plurality of primary segments, where a first end of each primary segment is connected to a first common input port and a second end of each primary segment is connected to a second common input port, where the first common input port is operative to receive the first differential output signal, and where the second common input port is operative to receive the second differential output signal, and a single secondary winding inductively coupled to the plurality of primary segments.
摘要翻译：本发明的实施例可以提供功率放大器系统和方法。系统和方法可以包括产生第一差分输出信号和第二差分输出信号的功率放大器，由多个主要段组成的初级绕组，其中每个主要段的第一端连接到第一公共输入端口并且每个主要段的第二端连接到第二公共输入端口，其中第一公共输入端口用于接收第一差分输出信号，并且其中第二公共输入端口用于接收第二差分输出信号，以及电感耦合到所述多个初级段的单个次级绕组。

35. 发明授权

US07812701B2 Compact multiple transformers 有权
标题翻译：紧凑型多变压器
公开(公告)号：US07812701B2
公开(公告)日：2010-10-12
申请号：US11970995
申请日：2008-01-08
申请人： Dong Ho Lee , Ki Seok Yang , Chang-Ho Lee , Haksun Kim , Joy Laskar
发明人： Dong Ho Lee , Ki Seok Yang , Chang-Ho Lee , Haksun Kim , Joy Laskar
IPC分类号： H01F5/00
CPC分类号： H01F27/2804
摘要： Example embodiments of the invention may provide systems and methods for multiple transformers. The systems and methods may include a first transformer that may include a first primary winding and a first secondary winding, where the first primary winding may be inductively coupled to the first secondary winding, where the first transformer may be associated with a first rotational current flow direction in the first primary winding. The systems and methods may further include a second transformer that may include a second primary winding and a second secondary winding, where the second primary winding may be inductively coupled to the second secondary winding, where the second transformer may be associated with a second rotational current flow direction opposite the first rotational current flow direction in the second primary winding, where a first section of the first primary winding may be positioned adjacent to a second section of the second primary winding, and where the adjacent first and second sections may include a substantially same first linear current flow direction.
摘要翻译：本发明的示例性实施例可以提供用于多个变压器的系统和方法。系统和方法可以包括可以包括第一初级绕组和第一次级绕组的第一变压器，其中第一初级绕组可以感应耦合到第一次级绕组，其中第一变压器可以与第一转子电流方向在第一次初级绕组。所述系统和方法还可以包括可包括第二初级绕组和第二次级绕组的第二变压器，其中第二初级绕组可以感应耦合到第二次级绕组，其中第二变压器可以与第二转子电流相关联流动方向与第二初级绕组中的第一旋转电流流动方向相反，其中第一初级绕组的第一部分可以邻近第二初级绕组的第二部分定位，并且其中相邻的第一和第二部分可以包括基本上相同的第一线性电流流动方向。

36. 发明授权

US07738841B2 Systems, methods and apparatuses for high power complementary metal oxide semiconductor (CMOS) antenna switches using body switching and external component in multi-stacking structure 有权
标题翻译：高功率互补金属氧化物半导体（CMOS）天线开关的系统，方法和装置，使用身体切换和多层叠结构中的外部组件
公开(公告)号：US07738841B2
公开(公告)日：2010-06-15
申请号：US11855950
申请日：2007-09-14
申请人： Minsik Ahn , Chang-Ho Lee , Jaejoon Chang , Wangmyong Woo , Haksun Kim , Joy Laskar
发明人： Minsik Ahn , Chang-Ho Lee , Jaejoon Chang , Wangmyong Woo , Haksun Kim , Joy Laskar
IPC分类号： H04B1/44
CPC分类号： H03K17/693 , H03K17/063 , H03K17/102 , H03K2017/066 , H03K2217/0018 , H04B1/48
摘要： Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SPDT switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz, 1.9 GHz and 2.1 GHz according to an embodiment of the invention. The CMOS antenna switch may include both a receiver switch and a transmit switch. The receiver switch may utilize a multi-stack transistor with body substrate switching and attachment of external capacitor between drain and gate to block high power signals from the transmit path as well as to maintain low insertion loss at the receiver path. Exemplary embodiments of the CMOS antenna switch may provide for 38 dBm P 0.1 dB at multi bands (e.g., 900 MHz, 1.8 GHz, and 2.1 GHz). In addition, −60 dBc second and third harmonic performance up to 30 dBm input, may be obtained according to example embodiments of the invention.
摘要翻译：本发明的实施例可以提供可被称为CMOS SPDT开关的CMOS天线开关。根据本发明的实施例，CMOS天线开关可以以多个频率操作，可能约为900MHz，1.9GHz和2.1GHz。 CMOS天线开关可以包括接收器开关和发送开关。接收器开关可以利用具有主体衬底切换的多层晶体管，并且在漏极和栅极之间附接外部电容器以阻挡来自发射路径的高功率信号以及在接收器路径处保持较低的插入损耗。 CMOS天线开关的示例性实施例可以在多频带（例如，900MHz，1.8GHz和2.1GHz）处提供38dBm P 0.1dB。此外，根据本发明的示例性实施例，可以获得高达30dBm输入的-60dBc的二次和三次谐波性能。

37. 发明申请

US20080272849A1 Active Baluns 失效
标题翻译：主动平衡不平衡
公开(公告)号：US20080272849A1
公开(公告)日：2008-11-06
申请号：US11970192
申请日：2008-01-07
申请人： Dong Ho Lee , Ki Seok Yang , Yunseok Kim , Sanghee Kim , Hyogeun Bae , Kijoong Kim , Li Lee , Songcheol Hong , Chang-Ho Lee , Haksun Kim , Joy Laskar
发明人： Dong Ho Lee , Ki Seok Yang , Yunseok Kim , Sanghee Kim , Hyogeun Bae , Kijoong Kim , Li Lee , Songcheol Hong , Chang-Ho Lee , Haksun Kim , Joy Laskar
IPC分类号： H03H11/32
CPC分类号： H03H11/32 , H03F1/223 , H03F3/195 , H03F3/4508 , H03F3/45179 , H03F3/45632 , H03F2200/06 , H03F2203/45301 , H03F2203/45304 , H03F2203/45306 , H03F2203/45318 , H03F2203/45562 , H03F2203/45631 , H03F2203/45644 , H03F2203/45648 , H03F2203/45702
摘要： Example embodiments of the invention may provide for active baluns. An example active balun may include a resonator that may convert a single-ended input signal to at least two differential input signals, and a differential switching block that includes first and second transistors that each receive a respective one of the at least two differential input signals from the resonator, where the first and second transistors may be cross-coupled to each other to provide a first differential output signal and a second differential output signal. An example active balun may further include one or more loads connected to the first and second differential output signals, and one or more stacked inverters that may provide a first output port and a second output port, where the first output port may be responsive to the first differential output signal and the second output port may be responsive to the second differential output signal.
摘要翻译：本发明的示例性实施例可以提供主动巴伦。示例性主动平衡 - 不平衡变换器可以包括可以将单端输入信号转换为至少两个差分输入信号的谐振器，以及包括第一和第二晶体管的差分开关块，每个晶体管接收至少两个差分输入信号中的相应一个其中所述第一和第二晶体管可以彼此交叉耦合以提供第一差分输出信号和第二差分输出信号。主动平衡 - 不平衡变换器的示例还可以包括连接到第一和第二差分输出信号的一个或多个负载，以及可以提供第一输出端口和第二输出端口的一个或多个堆叠逆变器，其中第一输出端口可以响应于第一差分输出信号和第二输出端口可以响应于第二差分输出信号。

38. 发明授权

US08463280B1 Heterogeneous mobile networking 有权
标题翻译：异构移动网络
公开(公告)号：US08463280B1
公开(公告)日：2013-06-11
申请号：US12712777
申请日：2010-02-25
申请人： Kyutae Lim , Joy Laskar , Ara Chakrabarti
发明人： Kyutae Lim , Joy Laskar , Ara Chakrabarti
IPC分类号： G06F15/16
CPC分类号： H04W36/32 , H04W4/029 , H04W28/26 , H04W72/048 , Y02D70/142 , Y02D70/164
摘要： A method and process for establishing a mapped network of access points for a user of a wireless device is provided. A unique and customized network is selected from cellular connections, private wireless connections, public wireless connections, and wireless card connections such that a unique and personalized control of wireless connectivity may be established. Greater wireless resources are thus made available and provide for greater connectivity and improved battery life for a user's device.
摘要翻译：提供了一种用于为无线设备的用户建立接入点的映射网络的方法和过程。从蜂窝连接，专用无线连接，公共无线连接和无线卡连接中选择独特且定制的网络，从而可以建立独特且个性化的无线连接控制。因此，更大的无线资源可用，并为用户的设备提供更大的连接性和改善的电池寿命。

39. 发明授权

US07454185B2 Wideband I/Q signal generation device 有权
标题翻译：宽带I / Q信号发生装置
公开(公告)号：US07454185B2
公开(公告)日：2008-11-18
申请号：US11089219
申请日：2005-03-24
申请人： Yun-Seo Park , Sang-Hyun Woo , Hwan-Seok Song , Seong-Soo Lee , Chang-Ho Lee , Joy Laskar
发明人： Yun-Seo Park , Sang-Hyun Woo , Hwan-Seok Song , Seong-Soo Lee , Chang-Ho Lee , Joy Laskar
IPC分类号： H04B1/10
CPC分类号： H03D7/165 , H03H7/20 , H03H7/21 , H03H2007/0192
摘要： An apparatus for generating an in-phase/quadrature-phase (I/Q) signal in a wireless transceiver is disclosed, including a local oscillator for generating an oscillation signal, and first and second mixers for mixing an oscillation signal with a transmission/reception signal to convert the transmission/reception signal into a baseband or high-frequency signal. The apparatus includes a phase locked circuit for controlling the local oscillator, and a polyphase filter installed between the local oscillator and the mixers, for separating the oscillation signal from the local oscillator into an I signal and a Q signal depending on a control signal from the phase locked circuit, and outputting the separated I and Q signals to the first and second mixers, respectively.
摘要翻译：公开了一种用于在无线收发机中产生同相/正交相（I / Q）信号的装置，包括用于产生振荡信号的本地振荡器，以及用于将振荡信号与发送/接收混合的第一和第二混频器信号将发送/接收信号转换为基带或高频信号。该装置包括用于控制本地振荡器的锁相电路和安装在本地振荡器和混频器之间的多相滤波器，用于将振荡信号与本地振荡器分离成I信号和Q信号，这取决于来自并且将分离的I和Q信号分别输出到第一和第二混频器。

40. 发明授权

US07113008B2 Frequency mixing apparatus 有权
标题翻译：混频装置
公开(公告)号：US07113008B2
公开(公告)日：2006-09-26
申请号：US11222011
申请日：2005-09-08
申请人： Bevin George Perumana , Sudipto Chakraborty , Chang-Ho Lee , Joy Laskar , Sang-Hyun Woo
发明人： Bevin George Perumana , Sudipto Chakraborty , Chang-Ho Lee , Joy Laskar , Sang-Hyun Woo
IPC分类号： H03B19/00
CPC分类号： H03D7/125
摘要： A frequency mixing apparatus is provided. In the frequency mixing apparatus, a PMOS transistor is coupled to an NMOS transistor in a cascode configuration and an LO signal is applied to the bulks of the PMOS and NMOS transistors so that an input signal applied to their gates is mixed with the LO signal. High isolation between the bulks and gates of the transistors resulting from application of the LO signal to the bulks prevents leakage of the LO signal, thereby decreasing a DC offset voltage. This renders the frequency mixing applicable to a DCR. Also, due to the cascade configuration similar to an inverter configuration, the frequency mixing apparatus can be incorporated in an FPGA of a MODEM in SDR applications. Frequency mixing based on switching of a threshold voltage decreases a noise factor and enables frequency mixing in a low supply voltage range, thereby decreasing power consumption.
摘要翻译：提供了一种混频装置。在频率混合装置中，PMOS晶体管以共源共栅配置耦合到NMOS晶体管，并且LO信号施加到PMOS和NMOS晶体管的体积，使得施加到其栅极的输入信号与LO信号混合。通过将LO信号施加到体积而产生的晶体管的大块和栅极之间的高隔离防止了LO信号的泄漏，从而减小了DC偏移电压。这使得频率混合适用于DCR。另外，由于与逆变器配置相似的级联配置，所以可将混频装置并入SDR应用中的MODEM的FPGA中。基于阈值电压的切换的频率混合降低了噪声因子，并且能够在低电源电压范围内进行频率混合，从而降低功耗。

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