公开(公告)号：US20090067541A1

公开(公告)日：2009-03-12

申请号：US11851007

申请日：2007-09-06

Applicant: Sangjin Byun ,  Kwanwoo Kim ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

Inventor： Sangjin Byun ,  Kwanwoo Kim ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

IPC: H04L27/00

CPC classification number: H03F1/0294 ,  H03F1/3282 ,  H03F3/24 ,  H03F2200/451 ,  H04L27/364

Abstract: Embodiments of the invention may provide for a digital LINC (linear amplification with nonlinear components) transmitter. The digital LINC transmitter may include a signal component separator, at least one digital delay modulator, a frequency synthesizer, at least one power amplifier, a power combiner, an antenna, and a mismatch compensator. Additionally, systems and methods may be provided for compensating for phase and amplitude mismatches between two signal paths.

Abstract translation: 本发明的实施例可以提供数字LINC（具有非线性分量的线性放大）发射机。 数字LINC发射机可以包括信号分量分离器，至少一个数字延迟调制器，频率合成器，至少一个功率放大器，功率组合器，天线和不匹配补偿器。 另外，可以提供用于补偿两个信号路径之间的相位和幅度失配的系统和方法。

公开(公告)号：US07449934B2

公开(公告)日：2008-11-11

申请号：US11585465

申请日：2006-10-24

Applicant: Sang-Hyun Woo ,  Jin-Sung Park ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Sang-Hyun Woo ,  Jin-Sung Park ,  Chang-Ho Lee ,  Joy Laskar

IPC: G06F7/44

CPC classification number: H03D7/1441 ,  H03D7/1458 ,  H03D2200/0043 ,  H03D2200/0084

Abstract: Provided is a mixer for use in a direct conversion receiver. The mixer includes Field Effect Transistors (FETs), a current source (IBias), two load resistors (RLoad), another FET, and two inductors L1 and L2. The FET M21 constitutes a current bleeding circuitry and the other components except for the two inductors L1 and L2 constitute a so-called Gilbert cell mixer.

Abstract translation: 提供一种用于直接转换接收机的混频器。 混频器包括场效应晶体管（FET），电流源（IBias），两个负载电阻（RLoad），另一个FET和两个电感器L 1和L 2。 FET M 21构成电流泄放电路，除了两个电感器L 1和L 2之外的其它部件构成所谓的吉尔伯特细胞混合器。

公开(公告)号：US20080214130A1

公开(公告)日：2008-09-04

申请号：US12034570

申请日：2008-02-20

Applicant: Jongmin Park ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

Inventor： Jongmin Park ,  Kyutae Lim ,  Chang-Ho Lee ,  Haksun Kim ,  Joy Laskar

IPC: H04B1/18

CPC classification number: H04W8/005 ,  H04W16/14 ,  H04W16/22

Abstract: Systems and methods may be provided for threshold determinations for spectrum sensing. The systems and methods may include receiving a false alarm rate, where the false alarm rate is associated with false occupancy identifications of a spectrum segment, determining a noise floor as a function of a noise figure and characteristics of a multi-resolution spectrum sensing (MRSS) window, and calculating a sensing threshold based at least in part upon the false alarm rate and the noise floor. The systems and methods may also include determining whether a portion of an RF spectrum is occupied based at least in part on the calculated sensing threshold.

Abstract translation: 可以提供用于频谱感测的阈值确定的系统和方法。 系统和方法可以包括接收误报率，其中误报率与频谱段的假占用标识相关联，确定作为噪声系数和多分辨率频谱感测特性（MRSS）的函数的本底噪声 ）窗口，并且至少部分地基于所述误报率和所述本底噪声来计算感测阈值。 系统和方法还可以包括至少部分地基于所计算的感测阈值来确定RF频谱的一部分是否被占用。

公开(公告)号：US20080180947A1

公开(公告)日：2008-07-31

申请号：US11964432

申请日：2007-12-26

Applicant: Eun Seok Jang ,  Sung Keun Lee ,  Jae Ho Lee ,  Chang Ho Lee ,  Yong Kon Lee ,  Oh Sang Kwon ,  Dae Heung Lee ,  Seung Hyun Kim ,  Jin Seo Park

Inventor： Eun Seok Jang ,  Sung Keun Lee ,  Jae Ho Lee ,  Chang Ho Lee ,  Yong Kon Lee ,  Oh Sang Kwon ,  Dae Heung Lee ,  Seung Hyun Kim ,  Jin Seo Park

IPC: F21V33/00

CPC classification number: G02F1/133604

Abstract: Disclosed is a printed circuit board, on which a holder for fixing a lamp is mounted, is disposed on an upper surface of a bottom cover, and an inverter supplying a driving voltage to the lamp is disposed on a lower surface of the bottom cover. The printed circuit board is electrically connected to the holder as a conductive pattern is embedded in the printed circuit board. The connector is directly mounted on the inverter, or it is connected to the inverter via a wire. In this case, the connector is also connected to the printed circuit board. Therefore, the connector of the inverter and the connector of the printed circuit board are electrically connected.

Abstract translation: 公开了一种印刷电路板，其上安装有用于固定灯的保持器，布置在底盖的上表面上，并且向底盖的下表面设置向灯提供驱动电压的逆变器。 当印刷电路板嵌入印刷电路板中时，印刷电路板电连接到保持器。 连接器直接安装在变频器上，或通过电线连接到变频器。 在这种情况下，连接器也连接到印刷电路板。 因此，逆变器的连接器和印刷电路板的连接器电连接。

公开(公告)号：US07403075B2

公开(公告)日：2008-07-22

申请号：US11345716

申请日：2006-02-02

Applicant: Rajarshi Mukhopadhyay ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

Inventor： Rajarshi Mukhopadhyay ,  Sebastien Nuttinck ,  Yun-Seo Park ,  Sang-Woong Yoon ,  Sang-Hyun Woo ,  Hyun-Il Kang ,  Chang-Ho Lee ,  Joy Laskar

IPC: H03B1/00

CPC classification number: H03B5/1231 ,  H03B5/1203 ,  H03B5/124 ,  H03B5/1256 ,  H03B2200/007

Abstract: Disclosed is an ultra wide band signal generator. The ultra wide band signal generator generates a signal of a required frequency using a harmonic signal having a frequency range of a ultra wide band (UWB). The ultra wide band signal generator includes an active inductor for generating harmonic signals having power strengths substantially equal to each other within a non-linear operation range, the tunable active inductor capable of tuning a value thereof, an oscillator for amplifying and outputting the harmonic signals generated from the active inductor by frequency-transiting the harmonic signals into high frequency bands, and a filter for selectively outputting one of the harmonic signals output from the oscillator.

Abstract translation: 公开了一种超宽带信号发生器。 超宽带信号发生器使用具有超宽带（UWB）的频率范围的谐波信号产生所需频率的信号。 超宽带信号发生器包括有源电感器，用于产生具有在非线性运行范围内彼此基本相等的功率强度的谐波信号，该可调谐有源电感器能调谐其值，用于放大和输出谐波信号的振荡器 通过将谐波信号频率转换成高频带从有源电感器产生的滤波器以及用于选择性地输出从振荡器输出的谐波信号之一的滤波器。

公开(公告)号：US20080172516A1

公开(公告)日：2008-07-17

申请号：US11819601

申请日：2007-06-28

Applicant: Yun-Hee Shin ,  Han-Gu Sohn ,  Young-Min Lee ,  Ho-Cheol Lee ,  Soo-Young Kim ,  Dong-Hyuk Lee ,  Chang-Ho Lee

Inventor： Yun-Hee Shin ,  Han-Gu Sohn ,  Young-Min Lee ,  Ho-Cheol Lee ,  Soo-Young Kim ,  Dong-Hyuk Lee ,  Chang-Ho Lee

IPC: G06F12/02

CPC classification number: G06F12/02

Abstract: A multiprocessor system and method thereof are provided. The example multiprocessor system may include first and second processors, a dynamic random access memory having a memory cell array, the memory cell array including a first memory bank coupled to the first processor through a first port, second and fourth memory banks coupled to the second processor through a second port, and a third memory bank shared and connected with the first and second processors through the first and second ports, and a bank address assigning unit for assigning bank addresses to select individually the first and second memory banks, as the same bank address through the first and second ports, so that starting addresses for the first and second memory banks become equal in booting, and assigning bank addresses to select the third memory bank, as different bank addresses through the first and second ports, and assigning, through the second port, bank addresses to select the fourth memory bank, as the same bank address as a bank address to select the third memory bank through the first port.

Abstract translation: 提供了一种多处理器系统及其方法。 示例性多处理器系统可以包括第一和第二处理器，具有存储单元阵列的动态随机存取存储器，所述存储单元阵列包括通过第一端口耦合到第一处理器的第一存储器组，耦合到第二存储器组的第二存储器组和第四存储器组 处理器通过第二端口和通过第一和第二端口与第一和第二处理器共享并连接的第三存储器组，以及用于分配存储体地址以选择单独地选择第一和第二存储体的存储体地址分配单元，如同样的 通过第一和第二端口的存储器地址，使得第一和第二存储器组的起始地址在引导中变得相等，并且通过第一和第二端口分配存储体地址以选择第三存储体作为不同的存储体地址， 通过第二个端口，银行地址选择第四个存储器，作为银行地址作为银行地址，选择第三个存储器 银行通过第一个港口。

公开(公告)号：US20080106188A1

公开(公告)日：2008-05-08

申请号：US11777204

申请日：2007-07-12

Applicant: Seok-Hwan Hwang ,  Young-Kook Kim ,  Yoon-Hyun Kwak ,  Chang-Ho Lee

Inventor： Seok-Hwan Hwang ,  Young-Kook Kim ,  Yoon-Hyun Kwak ,  Chang-Ho Lee

IPC: H01J1/62 ,  C07F7/02 ,  C07F7/04

CPC classification number: C07F7/0814 ,  C07F7/081 ,  Y10S428/917

Abstract: Silanylamine-based compounds represented by Formula 1 are provided. Methods of preparing the compounds and organic light emitting devices including organic layers comprising the silanylamine-based compounds are also provided. The silanylamine-based compounds have excellent electrical stability and electron transporting capabilities. Thus, the silanylamine-based compounds may be effectively used for red, green, blue, and white fluorescent and phosphorescent materials used to form hole injection layers, hole transport layers, and emissive layers in organic light emitting devices. Organic light emitting devices using these compounds have high efficiency, low driving voltages, high luminance and long lifetimes.

Abstract translation: 提供了由式1表示的基于硅烷基胺的化合物。 还提供了制备化合物的方法和包括含有硅烷基胺类化合物的有机层的有机发光器件。 基于硅烷基胺的化合物具有优异的电稳定性和电子传输能力。 因此，基于硅烷基胺的化合物可以有效地用于用于在有机发光器件中形成空穴注入层，空穴传输层和发射层的红，绿，蓝和白色荧光和磷光材料。 使用这些化合物的有机发光器件具有高效率，低驱动电压，高亮度和长寿命。

公开(公告)号：US20080079653A1

公开(公告)日：2008-04-03

申请号：US11857322

申请日：2007-09-18

Applicant: Minsik Ahn ,  Chang-Ho Lee ,  Changhyuk Cho ,  Jaejoon Chang ,  Wangmyong Woo ,  Haksun Kim ,  Joy Laskar

Inventor： Minsik Ahn ,  Chang-Ho Lee ,  Changhyuk Cho ,  Jaejoon Chang ,  Wangmyong Woo ,  Haksun Kim ,  Joy Laskar

IPC: H03K17/687 ,  H01Q1/00

CPC classification number: H03K17/693 ,  H03K17/063 ,  H03K17/102 ,  H03K2217/0018 ,  H04B1/48

Abstract: Embodiments of the invention may provide for a CMOS antenna switch, which may be referred to as a CMOS SP4T switch. The CMOS antenna switch may operate at a plurality of frequencies, perhaps around 900 MHz and 1.9 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 tuning to block high power signals from the transmit path as well as to maintain low insertion loss at the receiver path. On the other hand, in the transmit switch, a body substrate tuning technique may be applied to maintain high power delivery to the antenna. Example embodiments of the CMOS antenna switch may provide for 31 dBm P 1 dB at both bands (e.g., 900 MHz and 1.8 GHz). In addition, a 0.9 dB and −1.1 dB insertion loss at 900 MHz and 1.9 GHz, respectively, may be obtained according to example embodiments of the invention.

Abstract translation: 本发明的实施例可以提供CMOS天线开关，其可以被称为CMOS SP4T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，可能大约在900MHz和1.9GHz。 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调谐的多层晶体管来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低的插入损耗。 另一方面，在发送开关中，可以应用主体衬底调谐技术来保持对天线的高功率输送。 CMOS天线开关的示例实施例可以在两个频带（例如，900MHz和1.8GHz）处提供31dBm的P 1 dB。 此外，根据本发明的示例实施例，可以分别获得在900MHz和1.9GHz处的0.9dB和-1.1dB的插入损耗。

公开(公告)号：US20080001556A1

公开(公告)日：2008-01-03

申请号：US11898312

申请日：2007-09-11

Applicant: Hyun-Il Shin ,  Jae Lee ,  Chang-Ho Lee

Inventor： Hyun-Il Shin ,  Jae Lee ,  Chang-Ho Lee

IPC: H05B41/36

CPC classification number: H05B41/2855 ,  H05B37/03

Abstract: A circuit for sensing an open-circuit lamp is provided. The circuit includes a reference voltage output unit, a voltage sensor, and a comparator. The reference voltage output unit provides a reference voltage. The voltage sensor detects a sensed voltage corresponding to a status of a lamp. The status of the lamp includes an open-circuit status and a closed-circuit status. The comparator compares the sensed voltage with the reference voltage and outputs a result indicating the status of the lamp.

Abstract translation: 提供了用于感测开路灯的电路。 电路包括参考电压输出单元，电压传感器和比较器。 参考电压输出单元提供参考电压。 电压传感器检测对应于灯状态的感测电压。 灯的状态包括开路状态和闭路状态。 比较器将检测到的电压与参考电压进行比较，并输出指示灯状态的结果。

公开(公告)号：US07315045B2

公开(公告)日：2008-01-01

申请号：US11045688

申请日：2005-01-28

Applicant: Chang Ho Lee ,  Hae Yong Lee ,  Choon Kon Kim

Inventor： Chang Ho Lee ,  Hae Yong Lee ,  Choon Kon Kim

IPC: H01L27/15 ,  H01L31/12 ,  H01L33/00

CPC classification number: C30B29/406 ,  C30B25/02 ,  C30B25/18 ,  H01L21/0242 ,  H01L21/0243 ,  H01L21/02458 ,  H01L21/0254 ,  H01L21/0262 ,  H01L33/007 ,  H01S5/0213 ,  H01S2304/12 ,  Y10T428/24628

Abstract: The present invention relates to a sapphire/gallium nitride laminate, wherein a curvature radius thereof is positioned on the right side of a first curve plotted from the following functional formula (I): Y=Y0+A·e−(x−1)/T  (I) wherein Y is the curvature radius (m) of a sapphire/gallium nitride laminate, X is the thickness (μm) of a gallium nitride film, Y0 is 5.47±0.34, A is 24.13±0.50, and T is 0.56±0.04. The inventive laminate can be advantageously used in the manufacture of a high quality electronic device.

Abstract translation: 蓝宝石/氮化镓层压板本发明涉及蓝宝石/氮化镓层压板，其曲率半径位于从以下功能式（I）绘制的第一曲线的右侧：<？in-line-formula description =“In-line 公式“end =”lead“？> Y = Y <0> Ae - （x-1）/ T（I）<？in-line-formula description =” 其中Y是蓝宝石/氮化镓层叠体的曲率半径（μm），X是氮化镓膜的厚度（mum），Y <0 为5.47±0.34，A为24.13±0.50，T为0.56±0.04。 本发明的层压板可以有利地用于制造高质量的电子设备。