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    Apparatus and method of decreasing speed of sensorless brush less direct current (BLDC) motor
    4.
    发明授权
    Apparatus and method of decreasing speed of sensorless brush less direct current (BLDC) motor 有权
    无刷直流无刷直流电机降速的装置及方法

    公开(公告)号：US09287807B2

    公开(公告)日：2016-03-15

    申请号：US14119519

    申请日：2012-09-28

    申请人： Sang-Hyun Lee

    发明人： Sang-Hyun Lee

    IPC分类号： H02P6/00 ,  H02P3/14 ,  H02P6/18 ,  H02P6/24

    CPC分类号： H02P3/14 ,  H02P6/182 ,  H02P6/24

    摘要： Disclosed herein is an apparatus of a sensorless brush less direct current (BLDC) motor capable of rapidly driving the BLDC motor at a decreased speed. The apparatus includes: a switching unit configured to switch a direct current (DC) power depending on a plurality of pulse width modulation (PWM) signals to generate a three-phase alternating current (AC) power and apply the generated three-phase AC power to the BLDC motor to drive the BDLC motor; a plurality of voltage dividers configured to divide voltages of reverse electromotive forces generated in the BLDC motor; and a controlling unit configured to calculate a current rotation speed of the BLDC motor using output signals of the plurality of voltage dividers, generate the plurality of PWM signals depending on the calculated current rotation speed and a command rotation speed and output the plurality of PWM signals to the switching unit, divide a rotation phase angle of the BLDC motor into a speed decreasing region and a zero crossing point (ZCP) detecting region in the case of decreasing a rotation speed of the BLDC motor, decrease the rotation speed of the BLDC motor in the case in which the rotation phase angle of the BLDC motor is in the speed decreasing region, and detect ZCPs of the reverse electromotive forces in the case in which the rotation phase angle of the BLDC motor is in the ZCP detecting region. The apparatus may very rapidly decrease a speed of the BLDC motor to a required speed.

    摘要翻译： 本发明公开了一种能够以较低速度快速驱动BLDC电动机的无传感器刷少直流电动机（BLDC）电动机的装置。 该装置包括：开关单元，被配置为根据多个脉冲宽度调制（PWM）信号切换直流（DC）功率，以产生三相交流（AC）电力，并将产生的三相交流电 到BLDC电机驱动BDLC电机; 多个分压器，被配置为分配在所述BLDC电动机中产生的反向电动势的电压; 以及控制单元，被配置为使用所述多个分压器的输出信号来计算所述BLDC电动机的当前转速，根据所计算的当前转速和指令旋转速度产生所述多个PWM信号，并输出所述多个PWM信号 在切换单元中，在降低BLDC电动机的转速的情况下，将BLDC电动机的旋转相位角分为减速区域和过零点（ZCP）检测区域，降低BLDC电动机的转速 在BLDC电动机的旋转相位角处于减速区域的情况下，并且在BLDC电动机的旋转相位角处于ZCP检测区域的情况下，检测反向电动势的ZCP。 该装置可以非常快速地将BLDC电动机的速度降低到所需的速度。

    Light guide plate and liquid crystal display device including the same
    6.
    发明授权
    Light guide plate and liquid crystal display device including the same 有权
    导光板和包括其的液晶显示装置

    公开(公告)号：US08908124B2

    公开(公告)日：2014-12-09

    申请号：US12845273

    申请日：2010-07-28

    申请人： Sang-Hyun Lee ,  Byoung-Ku Kim ,  Won Taek Moon ,  Young-Ik Hwang

    发明人： Sang-Hyun Lee ,  Byoung-Ku Kim ,  Won Taek Moon ,  Young-Ik Hwang

    IPC分类号： G02F1/1335 ,  F21V8/00

    CPC分类号： G02B6/0036 ,  G02B6/0061 ,  G02B6/0068

    摘要： A light guide plate for a backlight unit of a liquid crystal display device includes one side surface where light from a first light source is incident; the other side surface opposite to the one side surface; a front surface combining the one and the other one side surfaces; and a rear surface including a plurality of light guide patterns, each of the plurality of light guide patterns including a protruding portion and a groove portion, wherein one of the protruding portion and the groove portion is positioned at a center of the other one of the protruding portion and the groove portion.

    摘要翻译： 用于液晶显示装置的背光单元的导光板包括：来自第一光源的光入射的一个侧面; 所述另一侧表面与所述一个侧表面相对; 组合一个和另一个侧表面的前表面; 以及包括多个导光图案的后表面，所述多个导光图案中的每一个包括突出部分和凹槽部分，其中所述突出部分和所述凹槽部分中的一个位于所述另一个的中心 突出部和槽部。

    Copolymer comprising 4-hydroxybutyrate unit and lactate unit and its manufacturing method
    7.
    发明授权
    Copolymer comprising 4-hydroxybutyrate unit and lactate unit and its manufacturing method 有权
    包含4-羟基丁酸酯单元和乳酸单元的共聚物及其制备方法

    公开(公告)号：US08383379B2

    公开(公告)日：2013-02-26

    申请号：US12312635

    申请日：2007-11-21

    申请人： Si-Jae Park ,  Taek-Ho Yang ,  Hye-Ok Kang ,  Sang-Hyun Lee ,  Eun-Jeong Lee ,  Tae-Wan Kim ,  Sang-Yup Lee

    发明人： Si-Jae Park ,  Taek-Ho Yang ,  Hye-Ok Kang ,  Sang-Hyun Lee ,  Eun-Jeong Lee ,  Tae-Wan Kim ,  Sang-Yup Lee

    IPC分类号： C12N9/00 ,  C07H21/04 ,  A01N63/00

    CPC分类号： C08G63/06 ,  C12N9/1025 ,  C12N15/8243 ,  C12N15/8245 ,  C12P7/625

    摘要： The present invention relates to a copolymer comprising 4-hydroxybutyrate monomer unit and lactate monomer unit, a copolymer 4-hydroxybutyrate monomer unit, lactate monomer unit and 3-hydroxyalkanoate, or their preparing method. More specifically, the present invention relates to a method for preparing a copolymer comprising lactate monomer; 4-hydroxybutyrate monomer; and optionally 3-hydroxyalkanoate, wherein the method comprises culturing a cell or plant comprising the gene of enzyme converting lactate and 3-hydroxyalkanoate into lactyl-CoA and 3-hydroxyalkanoyl-CoA, respectively, phosphotransbutylase gene, butyrate kinase gene and polyhydroxyalkanoate synthase gene together, and the copolymer made by the method. The copolymer of the present invention is a biodegradable polymer being able to be usefully used instead of conventional synthetic plastic, and the copolymer can be used for medical use.

    摘要翻译： 本发明涉及包含4-羟基丁酸酯单体单元和乳酸酯单体单元，共聚物4-羟基丁酸酯单体单元，乳酸酯单体单元和3-羟基链烷酸酯的共聚物或其制备方法。 更具体地说，本发明涉及制备包含乳酸酯单体的共聚物的方法; 4-羟基丁酸酯单体; 和任选的3-羟基链烷酸酯，其中所述方法包括分别将含有转化乳酸盐和3-羟基链烷酸酯的酶的基因的细胞或植物分别培养成乳酰基-CoA和3-羟基烷酰基-CoA，磷酸转移酶基因，丁酸酯激酶基因和聚羟基链烷酸酯合酶基因 和通过该方法制备的共聚物。 本发明的共聚物是能够有效地代替常规合成塑料的可生物降解聚合物，该共聚物可用于医疗用途。

    ENVIRONMENT-RESISTANT MODULE, MICROPACKAGE AND METHODS OF MANUFACTURING SAME
    8.
    发明申请
    ENVIRONMENT-RESISTANT MODULE, MICROPACKAGE AND METHODS OF MANUFACTURING SAME 有权
    环保型模块，微型封装及其制造方法

    公开(公告)号：US20120032346A1

    公开(公告)日：2012-02-09

    申请号：US13273402

    申请日：2011-10-14

    申请人： Khalil Najafi ,  Sang-Hyun Lee ,  Sang Woo Lee

    发明人： Khalil Najafi ,  Sang-Hyun Lee ,  Sang Woo Lee

    IPC分类号： H01L23/48 ,  H01L21/60 ,  H01L21/58

    CPC分类号： B81B3/0018 ,  B81B7/0038 ,  B81B7/0058 ,  B81B7/0064 ,  B81C1/00134 ,  H01L2224/16225 ,  H01L2924/1461 ,  H01L2924/00

    摘要： An environment-resistant module which provides both thermal and vibration isolation for a packaged micromachined or MEMS device is disclosed. A microplatform and a support structure for the microplatform provide the thermal and vibration isolation. The package is both hermetic and vacuum compatible and provides vertical feedthroughs for signal transfer. A micromachined or MEMS device transfer method is also disclosed that can handle a wide variety of individual micromachined or MEMS dies or wafers, in either a hybrid or integrated fashion. The module simultaneously provides both thermal and vibration isolation for the MEMS device using the microplatform and the support structure which may be fabricated from a thin glass wafer that is patterned to create crab-leg shaped suspension tethers or beams.

    摘要翻译： 公开了一种为封装的微加工或MEMS器件提供热隔离和隔振的环境保护模块。 用于微平台的微平台和支撑结构提供热隔离和隔振。 该封装兼具密封性和真空性，并提供信号传输的垂直馈通。 还公开了微加工或MEMS器件转移方法，其可以以混合或集成的方式处理各种各样的微机械加工或MEMS管芯或晶片。 该模块同时提供使用微平台和支撑结构的MEMS器件的热隔离和隔振，该支撑结构可以由图案化以形成螃蟹腿形悬挂系绳或梁的薄玻璃晶片制造。

    APPARATUS AND METHOD FOR CAMPING ON IN MOBILE COMMUNICATION TERMINAL
    9.
    发明申请
    APPARATUS AND METHOD FOR CAMPING ON IN MOBILE COMMUNICATION TERMINAL 审中-公开
    用于移动通信终端的装置和方法

    公开(公告)号：US20110117951A1

    公开(公告)日：2011-05-19

    申请号：US12948980

    申请日：2010-11-18

    申请人： Sang-Hyun Lee

    发明人： Sang-Hyun Lee

    IPC分类号： H04W72/04

    CPC分类号： H04W72/02 ,  H04W24/00

    摘要： An apparatus and a method for obtaining a service in a weak electric field in a mobile communication terminal are provided. In the method, whether one or more frequencies that meet reception signal strength of a certain threshold exist among all frequencies on which camp-on is possible is determined. When it is determined that the one or more frequencies that meet the reception signal strength of the certain threshold do not exist, camp-on is attempted for one or more frequencies that are expected to exist and have been set in advance.

    摘要翻译： 提供了一种用于在移动通信终端中获取弱电场中的服务的装置和方法。 在该方法中，确定满足可能进行驻扎的所有频率中存在一定阈值的接收信号强度的一个或多个频率。 当确定不存在满足特定阈值的接收信号强度的一个或多个频率时，尝试针对期望存在的并预先设置的一个或多个频率进行驻留。

    ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS
    10.
    发明申请
    ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS 有权
    具有多个天线的无线通信系统中的自适应传输和接收方法及装置

    公开(公告)号：US20110059700A1

    公开(公告)日：2011-03-10

    申请号：US12874629

    申请日：2010-09-02

    申请人： Yun-Hee Kim ,  Kwang-Soon Kim ,  Sang-Hyun Lee ,  Kyu-Jong Hwang ,  Kyung-Hi Chang

    发明人： Yun-Hee Kim ,  Kwang-Soon Kim ,  Sang-Hyun Lee ,  Kyu-Jong Hwang ,  Kyung-Hi Chang

    IPC分类号： H04B7/00

    CPC分类号： H04L1/0003 ,  H04B7/0417 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  Y02D70/1244 ,  Y02D70/142 ,  Y02D70/444

    摘要： Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data.

    摘要翻译： 公开了一种在多天线无线通信系统中的自适应发射和接收方法和装置。 发送模式包括不同的主发送模式，每个发送模式包括基于STBC的子发送模式和基于SM的子发送模式中的一个或两个。 接收机计算STBC性能参数和SM性能参数，发射机使用参数来确定具有最大数据速率的主发射模式，并选择用于最小化功耗的子发射模式。 发射机根据选择的发射模式对输入数据进行信道编码，调制和天线映射，并将结果输出到接收机。 接收机天线/符号解调并对接收的数据进行通道解码。