公开(公告)号：US06594072B2

公开(公告)日：2003-07-15

申请号：US10195672

申请日：2002-07-15

申请人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

发明人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

IPC分类号： H01S300

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for the all optical recovery of the clock signal from an arbitrary optical data signal. The method involves two stages. A first stage preprocesses the optical signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The output of the preprocessing stage is fed to a clock recovery stage, which consists of a symmetric interferometer that locks on to the inherent clock signal by using the second stage input signal to trigger two optical sources to self oscillate at the clock rate. In a preferred embodiment the second stage is implemented via SOAs integrated in the arms of an interferometer, with two DFB lasers as terminuses. The output of the interferometer is an optical clock signal at the clock rate of the original input.

公开(公告)号：US06563621B2

公开(公告)日：2003-05-13

申请号：US09849441

申请日：2001-05-04

申请人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Mohammad Laham ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

发明人： Bharat Dave ,  Doruk Engin ,  Kwang Kim ,  Mohammad Laham ,  Julio Martinez ,  Olga Nedzhvetskaya ,  Jithamithra Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Buu Thai

IPC分类号： H04B1002

CPC分类号： H04B10/299 ,  H04L7/0075

摘要： A method and circuit are presented for the all optical recovery of the clock signal from an arbitrary optical data signal. The method involves two stages. A first stage preprocesses the optical signal by converting a NRZ signal to a PRZ signal, or if the input optical signal is RZ, by merely amplifying it. In a preferred embodiment this stage is implemented via an integrated SOA in each arm of an asymmetric interferometric device. The output of the preprocessing stage is fed to a clock recovery stage, which consists of a symmetric interferometer that locks on to the inherent clock signal by using the second stage input signal to trigger two optical sources to self oscillate at the clock rate. In a preferred embodiment the second stage is implemented via SOAs integrated in the arms of an interferometer, with two DFB lasers as terminuses. The output of the interferometer is an optical clock signal at the clock rate of the original input.

公开(公告)号：US6147555A

公开(公告)日：2000-11-14

申请号：US174715

申请日：1998-10-19

申请人： Richard D. Posner ,  Kwang Kim ,  Stefan Klein ,  Wayne Roberts ,  Gregory French

发明人： Richard D. Posner ,  Kwang Kim ,  Stefan Klein ,  Wayne Roberts ,  Gregory French

IPC分类号： H03F1/32 ,  H03F1/26 ,  H03F1/36 ,  H03G5/16

CPC分类号： H03F1/3241 ,  H03F1/3229

摘要： A method and apparatus reduce the out-of-band frequency components of an RF amplified signal, preferably a CDMA signal, which has a carrier frequency which is not known in advance. The apparatus and method feature locating the frequency of the incoming signal by examining an RF output signal having both in-band frequency components and out-of-band frequency components. Typically the output signal is generated using a high-power, Class A/B amplifier. Once the frequency of the carrier has been determined, the out-of-band components are used to generate control signals which, in, for example, a feedback or feedforward circuitry, reduce the energy of the out-of-band signals and thereby provide a more linear amplifier transfer function.

摘要翻译： 一种方法和装置降低了RF放大信号（优选CDMA信号）的带外频率分量，其具有预先不知道的载波频率。 该装置和方法通过检查具有带内频率分量和带外频率分量两者的RF输出信号来定位输入信号的频率。 通常，使用大功率A / B类放大器产生输出信号。 一旦已经确定了载波的频率，则使用带外分量来产生控制信号，所述控制信号在例如反馈或前馈电路中降低带外信号的能量，从而提供 更线性的放大器传递函数。

公开(公告)号：US20090153987A1

公开(公告)日：2009-06-18

申请号：US12332942

申请日：2008-12-11

申请人： Kwang Kim ,  Ki-Bum Park

发明人： Kwang Kim ,  Ki-Bum Park

IPC分类号： G02B7/02 ,  H01L41/00

CPC分类号： H02N2/025 ,  G02B7/102

摘要： A linear motor and a camera module having the linear motor are provided. The linear motor includes: a piezoelectric substrate generating a vibration mode in a longitudinal direction on the basis of an applied voltage; first and second shafts coupled to both sides of the piezoelectric substrate with the piezoelectric substrate interposed therebetween; and a moving member coupled to at least one of the first and second shafts to be movable in the longitudinal direction of the first and second shafts and connected to a camera lens on one side. Accordingly, it is possible to remove a dead zone with a simple structure, to prevent an unnecessary increase in thickness, not to cause a stoppage at the time of moving a camera lens, to cause a small amount of tilt to enable a linear control, and to contribute to a decrease in thickness and a compactness of a mobile terminal.

摘要翻译： 提供具有线性电动机的线性电动机和摄像机模块。 线性电动机包括：压电基板，其基于施加的电压在长度方向上产生振动模式; 耦合到压电基板的两侧的第一和第二轴，其间插入压电基板; 以及移动构件，其联接到所述第一和第二轴中的至少一个，以能够在所述第一和第二轴的纵向方向上移动并且在一侧上连接到相机透镜。 因此，可以以简单的结构去除死区，以防止不必要的厚度增加，不会在移动相机镜头时造成停止，导致少量的倾斜使得能够进行线性控制， 并且有助于移动终端的厚度的减小和紧凑性。

公开(公告)号：US20080101526A1

公开(公告)日：2008-05-01

申请号：US11969404

申请日：2008-01-04

申请人： Lionel D'LUNA ,  Mark Chambers ,  Thomas Hughes ,  Kwang Kim ,  Sathish Radhakrishnan

发明人： Lionel D'LUNA ,  Mark Chambers ,  Thomas Hughes ,  Kwang Kim ,  Sathish Radhakrishnan

IPC分类号： H03D3/24

CPC分类号： G11C7/04 ,  G06F13/4243 ,  G11C7/1066 ,  G11C7/22 ,  G11C7/222 ,  G11C11/401 ,  G11C11/4076 ,  G11C11/4093 ,  G11C29/02 ,  G11C29/022 ,  G11C29/023 ,  G11C29/028 ,  H03K2005/00052 ,  H03L7/0805 ,  H03L7/0812 ,  H03L7/183 ,  H03L7/23

摘要： A system and method are used to allow high speed communication between a circuit and an external device. The system and method include a PLL with multiple phased outputs configured to be controlled digitally, a deskew PLL configured to align a clock of controller circuitry to interface circuitry, and a phase interpolated voltage controlled delay line configured to phase shift incoming signals. Analog design techniques of phase interpolation accurately position clocks and strobe signals that are required for high speed interfaces. The high speed interface is for transmitting and receiving signals from the external device, for example, a DDR DRAM.

摘要翻译： 一种系统和方法用于允许电路和外部设备之间的高速通信。 该系统和方法包括配置为被数字控制的多个相控输出的PLL，被配置为将控制器电路的时钟与接口电路对准的偏移校准PLL以及被配置为相移输入信号的相位内插电压控制延迟线。 相位插值的模拟设计技术可精确定位高速接口所需的时钟和选通信号。 高速接口用于从外部设备发送和接收信号，例如DDR DRAM。

公开(公告)号：US07272840B2

公开(公告)日：2007-09-18

申请号：US10647134

申请日：2003-08-25

申请人： Young-min Cheong ,  Kwang Kim ,  Dae-hwan Kim ,  Jin-won Lee

发明人： Young-min Cheong ,  Kwang Kim ,  Dae-hwan Kim ,  Jin-won Lee

IPC分类号： G11B7/08 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/0933 ,  G11B7/0935 ,  G11B7/0956

摘要： An objective lens driving apparatus used with an optical pickup includes a base, a holder provided on the base, a blade on which an objective lens is mounted, an elastic support body elastically supporting the blade and which is capable of moving with respect to the holder, a pair of magnetic members installed on the base to face each other, and a coil assembly including a focus coil, a tracking coil, and a tilt coil, the coil assembly being installed at the blade so as to be disposed between the magnetic members. Thus, coils needed to change the position of an objective lens are incorporated into a single coil assembly and are arranged between a pair of magnets, and an installation space is small so that the apparatus can be made compact.

摘要翻译： 与光学拾取器一起使用的物镜驱动装置包括基座，设置在基座上的保持器，安装有物镜的刀片，弹性支撑体，其弹性地支撑刀片，并且能够相对于保持器移动 ，一对安装在基座上的磁性构件，以及包括聚焦线圈，跟踪线圈和倾斜线圈的线圈组件，线圈组件安装在叶片处，以便设置在磁性构件之间 。 因此，需要改变物镜位置的线圈被并入单个线圈组件中并且被布置在一对磁体之间，并且安装空间小，使得该装置可以被制造得紧凑。

公开(公告)号：US20070181871A1

公开(公告)日：2007-08-09

申请号：US11279850

申请日：2006-04-14

申请人： Chung Song ,  Kang Kim ,  Gi Ryu ,  Yong Xu ,  Kwang Kim ,  Myung Lee

发明人： Chung Song ,  Kang Kim ,  Gi Ryu ,  Yong Xu ,  Kwang Kim ,  Myung Lee

IPC分类号： H01L29/08 ,  H01L35/24 ,  H01L51/00

CPC分类号： H01L51/0525 ,  H01L51/0094 ,  H01L51/105

摘要： The present invention provides a low-voltage organic thin film transistor having a gate dielectric layer of ultra-thin metal oxide self-grown on a metal gate electrode by O2 plasma process. The metal gate electrode is deposited on a plastic or glass substrate. By directly oxidizing the gate electrode by using O2 plasma process, the gate dielectric layer of metal oxide is formed with a thickness of several nanometers on the gate electrode. The organic semiconductor layer is deposited on the gate dielectric layer, and source/drain electrodes are formed on the organic semiconductor layer. Before the organic semiconductor layer is formed, an organic molecular monolayer may be formed on the gate dielectric layer by using molecular self-assembly technique. The gate dielectric layer may be formed at room temperature to about 100° C.

摘要翻译： 本发明提供一种低压有机薄膜晶体管，其具有通过O 2等离子体工艺在金属栅电极上自生长的超薄金属氧化物的栅介电层。 金属栅电极沉积在塑料或玻璃基板上。 通过使用O 2等离子体工艺直接氧化栅电极，在栅电极上形成金属氧化物的栅极电介质层，其厚度为几纳米。 有机半导体层沉积在栅极电介质层上，在有机半导体层上形成源极/漏极。 在形成有机半导体层之前，可以通过使用分子自组装技术在栅介质层上形成有机分子单层。 栅介电层可以在室温至约100℃下形成

公开(公告)号：US20070133991A1

公开(公告)日：2007-06-14

申请号：US11606670

申请日：2006-11-29

申请人： Won Lee ,  Heuk Park ,  Kwang Kim

发明人： Won Lee ,  Heuk Park ,  Kwang Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/007

摘要： Provided are an encoder and/or decoder for an OCDMA (optical code division multiple access) and a method thereof. The encoder and/or decoder includes: a demultiplexer outputting multi-wavelength optical signals through paths varying with a wavelength using a plurality of first fused couplers having different coupling coefficients; and a multiplexer selecting the signals of predetermined wavelengths out of output signals from the demultiplexer using a plurality of second fused couplers symmetric to the plurality of first fused couplers and generating a PN code corresponding to the selected wavelengths.

摘要翻译： 提供了一种用于OCDMA（光码分多址）的编码器和/或解码器及其方法。 编码器和/或解码器包括：解复用器，其通过使用具有不同耦合系数的多个第一熔接耦合器以波长变化的路径输出多波长光信号; 以及多路复用器，使用与所述多个第一融合耦合器对称的多个第二融合耦合器，从所述解复用器输出的输出信号中选择预定波长的信号，并产生对应于所选波长的PN码。

公开(公告)号：US20070097854A1

公开(公告)日：2007-05-03

申请号：US11399115

申请日：2006-04-05

申请人： Hwan Chung ,  Heuk Park ,  Kwang Kim

发明人： Hwan Chung ,  Heuk Park ,  Kwang Kim

IPC分类号： H04J11/00

CPC分类号： H04J14/005

摘要： Provided are an apparatus and a method for reducing a signal noise of an OCDMA receiver and an OCDMA receiver and method. The includes: a clock recovery unit extracting sine wave clock from an output signal of an OCDMA decoder including an MAI (multiple access interference) noise; a time gating unit separating an auto-correlation peak signal and the MAI noise from the output signal of the OCDMA decoder using the sine wave clock; and an optical interferometer removing an SI (signal interference) noise remaining in the auto-correlation peak signal.

摘要翻译： 提供了一种用于降低OCDMA接收机和OCDMA接收机的信号噪声的装置和方法以及方法。 包括：时钟恢复单元，从包括MAI（多址干扰）噪声的OCDMA解码器的输出信号提取正弦波时钟; 时间门控单元，使用正弦波时钟从OCDMA解码器的输出信号中分离自相关峰值信号和MAI噪声; 以及去除自相关峰值信号中残留的SI（信号干扰）噪声的光学干涉仪。

公开(公告)号：US20070026283A1

公开(公告)日：2007-02-01

申请号：US11542896

申请日：2006-10-04

申请人： Anthony LaConti ,  William Titterington ,  Larry Swette ,  Ricardo Leon ,  Kwang Kim

发明人： Anthony LaConti ,  William Titterington ,  Larry Swette ,  Ricardo Leon ,  Kwang Kim

IPC分类号： H01M8/10 ,  H01M8/02 ,  H01M4/88 ,  H01M4/94

CPC分类号： C25B9/10 ,  C25B9/04 ,  C25B9/08 ,  C25B9/206 ,  H01M8/0232 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0273 ,  H01M8/04104 ,  H01M8/1004 ,  H01M8/248 ,  H01M2008/1095

摘要： Electrolysis cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. A multi-layer metal screen for defining a first fluid cavity is placed in contact with the outer face of the anode, and an electrically-conductive, compressible, spring-like, porous pad for defining a second fluid cavity is placed in contact with the outer face of the cathode. The porous pad comprises a mat of carbon fibers bound together with one or more, preferably thermoplastic, resins, the mat having a density of about 0.2-1.5 g/cm3. Cell frames are placed in peripheral contact with the metal screen and the compression pad for peripherally containing fluids present therewithin. Electrically-conductive separators are placed in contact with the metal screen and the compression pad for axially containing fluids present therewithin. A plurality of the cells may be arranged in series in a bipolar configuration without requiring a separate compression pad between cells (for gas pressure differentials up to about 400 psi or greater). The invention is also directed to a fuel cell wherein the pad replaces the carbon fiber paper or carbon fiber cloth in contact with the cathode or anode.