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    • 2. 发明授权
    • Hair brush for hot curling
    • 毛刷烫发
    • US08196592B2
    • 2012-06-12
    • US12832969
    • 2010-07-08
    • Jin Ho Choi
    • Jin Ho Choi
    • A45D6/02A45D24/16
    • A46B17/00A45D20/52A45D24/16A46B13/005A46B2200/104
    • A hair brush for hot curling includes a body, a closing cap, a connection member and a brush part. The body made of ceramic coated aluminum includes holes through which a steel teeth of the brush part protrudes. The closing cap engages with the body formed by assembling segmented portions. The connection member for connecting the segmented portions of the body includes a body part and an insertion groove to which the body is inserted. The brush part includes a handle part and a fastening part, a first end of which is connected to the handle part and a second end is engaged with one end of the assembled body. An iron core is formed by twisting two or more wires, one end of which is securely engaged within the fastening part, a plurality of the steel teeth being formed on the iron core in a circumferential direction thereof.
    • 用于热卷曲的毛刷包括主体,封闭盖,连接构件和刷部。 由陶瓷涂层铝制成的主体包括刷部的钢齿突出的孔。 封闭盖与通过组装分段部分形成的主体接合。 用于连接主体的分段部分的连接构件包括主体部分和插入主体的插入槽。 刷部分包括手柄部分和紧固部分,其第一端连接到手柄部分,并且第二端部与组装体的一端接合。 铁芯通过将两根或多根线材扭曲而形成,其中一根线材牢固地接合在紧固部件内,多个钢齿沿铁芯沿圆周方向形成。
    • 5. 发明授权
    • Adaptive beamforming method in an IMT-2000 system
    • IMT-2000系统中的自适应波束成形方法
    • US06380892B1
    • 2002-04-30
    • US09540986
    • 2000-03-31
    • Jin Ho ChoiHee Gul ParkYoon Oh Yang
    • Jin Ho ChoiHee Gul ParkYoon Oh Yang
    • H01Q324
    • H01Q3/2605
    • An adaptive beamforming apparatus and method of an array antenna in a communication system. First, a tentative symbol decision value is obtained by processing a traffic signal vector, and a final updated coefficient value is obtained by performing a least mean square (LMS) algorithm at least once with respect to the tentative symbol decision value and a pilot signal vector on the assumption that the tentative symbol decision value is a transmitted symbol value. Then an adaptive beam which corresponds to a final symbol decision value is formed using the traffic signal vector and the final updated coefficient value.
    • 一种通信系统中的阵列天线的自适应波束成形装置和方法。 首先,通过处理交通信号矢量获得暂定符号判定值,并且通过相对于暂定符号判定值至少一次执行最小均方(LMS)算法和导频信号矢量来获得最终更新系数值 假设假定符号判定值是发送符号值。 然后使用交通信号矢量和最终更新的系数值形成对应于最终符号判定值的自适应波束。
    • 6. 发明授权
    • Apparatus and method for measuring the amount of the current in battery cells using a plurality of sensing resistors
    • 使用多个感测电阻器测量电池单元中的电流量的装置和方法
    • US07696727B2
    • 2010-04-13
    • US11394907
    • 2006-03-31
    • Jin Ho Choi
    • Jin Ho Choi
    • H02J7/16H02J7/00
    • G01R15/002G01R1/203G01R19/16542G01R31/3606G01R31/3631
    • Disclosed is an apparatus for measuring an amount of current in battery cells. The apparatus includes: a plurality of resistors (R1, R2, and R3) connected in parallel; a main chip connected to both ends of one (R1) of the plurality of resistors, detecting voltage across the connected resistor, and adding up the amount of current on the basis of the detected voltage; a multiplexer selecting one of the other resistors (R2 and R3) when the amount of current added up at the main chip exceeds a predetermined threshold value; and a plurality of switches connected to the plurality of resistors respectively, and switched on/off by an output signal of the multiplexer. Thereby, it is possible to prevent damage to the surrounding components caused by the generation of heat from the single detection resistor, and detect a more precise amount of current in the battery cells.
    • 公开了一种用于测量电池单元中的电流量的装置。 该装置包括:并联连接的多个电阻器(R1,R2和R3); 连接到所述多个电阻器中的一个(R1)的两端的主芯片,检测所连接的电阻器两端的电压,并根据检测到的电压相加电流量; 当在主芯片上相加的电流量超过预定阈值时,多路复用器选择其它电阻器(R2和R3)之一; 以及分别连接到多个电阻器的多个开关,并由多路复用器的输出信号接通/断开。 因此,可以防止由于单个检测电阻器产生的热量而导致的周围部件的损坏,并且能够检测电池单元中更精确的电流量。
    • 7. 发明申请
    • Digital-to-Analog Converter for display device
    • 用于显示设备的数模转换器
    • US20090046083A1
    • 2009-02-19
    • US12222379
    • 2008-08-07
    • Sang Suk KimJin Ho Choi
    • Sang Suk KimJin Ho Choi
    • G06F3/038
    • G09G3/20G09G2330/028
    • A digital-to-analog converter (DAC) for a display device is provided. The DAC includes an amplifier and a current decoder. The amplifier receives a gradation voltage with respect to upper bits in data of k bits through a non-inverting input terminal, and varies the input gradation voltage according to a voltage applied to an inverting input terminal. The current decoder allows a predetermined constant current to flow therethrough according to input data of lower bits, which do not include the upper bits, to thereby vary the voltage applied to the inverting input terminal. The current decoder further adjusts the gradation voltage outputted by the amplifier according to the varied voltage.
    • 提供了一种用于显示设备的数模转换器(DAC)。 DAC包括放大器和电流解码器。 放大器通过非反相输入端子接收关于k位数据中的高位的灰度电压,并且根据施加到反相输入端子的电压来改变输入灰度电压。 当前的解码器允许预定的恒定电流根据不包括高位的较低位的输入数据流过,从而改变施加到反相输入端的电压。 电流解码器还根据变化的电压进一步调节放大器输出的灰度电压。