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    • 4. 发明授权
    • Direct seeder
    • 直播机
    • US07603956B2
    • 2009-10-20
    • US12067435
    • 2006-02-06
    • Oh-Seob NohKwang-Ho Park
    • Oh-Seob NohKwang-Ho Park
    • A01C7/00A01C9/00
    • A01C7/006A01C7/06Y02P60/16Y02P60/214Y02P60/23
    • The present invention relates to a direct seeder. A fertilizer receptacle and a seed receptacle integrally formed with each other in the conventional art are separated from each other. A single fertilizer receptacle and a single seed receptacle are used in place of a plurality of fertilizer receptacles and a plurality of seed receptacles according to the conventional art. The fertilizer receptacle and seed receptacle are installed to be positioned so low that fertilizer and seeds can be easily poured into the fertilizer receptacle and seed receptacle. A screw conveyor for removing the traces of tractor wheels is installed on the direct seeder.
    • 本发明涉及一种直播机。 在传统技术中一体形成的肥料容器和种子容器彼此分离。 使用单个肥料容器和单个种子容器代替根据常规技术的多个肥料容器和多个种子容器。 肥料容器和种子容器的安装位置如此之低,使得肥料和种子可以很容易地倒入肥料容器和种子容器中。 用于除去拖拉机轮的痕迹的螺旋输送机安装在直接播种机上。
    • 6. 发明授权
    • Process for preparing pale-colored and transparent alkyl glycosides
    • 制备淡色和透明的烷基糖苷的方法
    • US06504018B1
    • 2003-01-07
    • US09554639
    • 2000-05-17
    • Tae-Hee WooDong-Hyuh ChoKwang-Ho Park
    • Tae-Hee WooDong-Hyuh ChoKwang-Ho Park
    • C07G1100
    • C07H13/06
    • A process for preparing pale-colored and transparent alkyl glycosides by reacting glucose and high fatty alcohol in presence of an acid catalyst is disclosed. The process comprises the steps of admixing, reacting, neutralizing, distilling, diluting and bleaching. In the above process, the reaction step is controlled by a product color and an amount of unreacted glucose, the neutralizing step is controlled by alkali metal oxdie powders having a specific surface area of more than 30 m2/g and the product color, the distilling step is controlled an unreacted residual fatty alcohol, and the diluting step is controlled by refined ion water and sealed vessel without oxygen. Further, the process provides a method of recycling collected fatty alcohol without being refined.
    • 公开了一种在酸催化剂存在下通过葡萄糖和高脂肪醇反应制备淡色和透明的烷基糖苷的方法。 该方法包括混合,反应,中和,蒸馏,稀释和漂白的步骤。 在上述方法中,反应步骤由产物颜色和未反应葡萄糖的量控制,中和步骤由比表面积大于30m 2 / g的碱金属氧化物粉末和产品颜色,蒸馏 控制未反应的残余脂肪醇,稀释步骤由精制离子水和无氧密封容器控制。 此外,该方法提供了在不精炼的情况下回收收集的脂肪醇的方法。
    • 7. 发明授权
    • Apparatus for reducing moire interference in color cathode ray tubes
    • 用于减少彩色阴极射线管中的莫尔干涉的装置
    • US5777698A
    • 1998-07-07
    • US615447
    • 1996-03-14
    • Kwang Ho Park
    • Kwang Ho Park
    • H01J29/56H04N3/22H04N5/21
    • H04N3/22
    • An apparatus for reducing Moire interference in a color cathode ray tube produced due to inconsistent spacing of scanning lines with respect to the dot pitches of a shadow mask during the display of video signals. The apparatus includes a sync signal dividing section for dividing by 2 horizontal and vertical sync signals separated from an input video signal, a vertical position control signal output section for outputting to a vertical position control section a voltage signal which varies according to a scanning Moire control signal selectively inputted by a user, and a horizontal position control signal output section for outputting to a horizontal oscillation control section a voltage signal which varies according to a video Moire control signal selectively inputted by the user, so that the vertical position of the even or odd scanning lines as well as the horizontal position of the even or odd image dots are adjusted to suppress the Moire interference.
    • 由于在显示视频信号期间由于扫描线的间隔与荫罩的点间距不一致而产生的彩色阴极射线管中的Moir + E,acu e + EE干扰的装置。 该装置包括:一个同步信号分割部分,用于分割与输入视频信号分离的2个水平和垂直同步信号;垂直位置控制信号输出部分,用于向垂直位置控制部分输出根据扫描莫尔+ E,acu e + EE控制信号,以及水平位置控制信号输出部,其向水平振荡控制部输出根据视频Moir + E,acu + EE控制信号选择性地变化的电压信号 使得偶数或奇数扫描线的垂直位置以及偶数或奇数像点的水平位置被调整以抑制Moir + E,acu e + EE干扰。
    • 8. 发明授权
    • Power supply for a raster center controller for a video display appliance
    • 用于视频显示设备的光栅中心控制器的电源
    • US5691609A
    • 1997-11-25
    • US673575
    • 1996-07-01
    • Kwang Ho Park
    • Kwang Ho Park
    • H04N3/16H04N3/00H04N3/18H04N3/227G09G1/04H01J29/70
    • H04N3/227
    • A power supply for a raster center controller for a video display appliance which can prevent picture movement phenomena of a cathode ray tube which are caused by unstable power supply to the raster center controller due to the change of the horizontal frequency. The power supply for a raster center controller includes coils, provided in a secondary winding of a flyback transformer, for generating and providing to the raster center controller a pulse voltage having a pulse width corresponding to that of a high voltage developed in the flyback transformer, first and second power supply sections, coupled between the coils and the raster center controller, for providing positive and negative supply voltages to the raster center controller by rectifying and performing charge/discharge operation with respect to the pulse voltage developed in the coils, respectively.
    • 一种用于视频显示设备的光栅中心控制器的电源,其可以防止由于水平频率的变化而导致的对光栅中心控制器的不稳定的电力供应而引起的阴极射线管的图像移动现象。 用于光栅中心控制器的电源包括设置在回扫变压器的次级绕组中的线圈,用于产生并向光栅中心控制器提供脉冲电压,脉冲电压具有与在回扫变压器中产生的高电压相对应的脉冲宽度, 耦合在线圈和光栅中心控制器之间的第一和第二电源部分,用于通过分别对线圈中产生的脉冲电压进行整流和执行充电/放电操作来向光栅中心控制器提供正和负电源电压。