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    • 41. 发明授权
    • Apparatus for easing impact on boom of excavator and method of controlling the same
    • 减轻对挖掘机吊臂影响的装置及其控制方法
    • US07934377B2
    • 2011-05-03
    • US11977650
    • 2007-10-25
    • Dong Soo KimJae Hoon LeeChun Seung LeeJae Hong KimJoong Seon JohEun Tae Jeung
    • Dong Soo KimJae Hoon LeeChun Seung LeeJae Hong KimJoong Seon JohEun Tae Jeung
    • F16D31/02
    • E02F9/2207E02F9/2285E02F9/2292F15B21/008F15B21/087F15B2211/20538F15B2211/20592F15B2211/3144F15B2211/329F15B2211/36F15B2211/6054F15B2211/6313F15B2211/6316F15B2211/6346F15B2211/7053F15B2211/8616
    • An apparatus for easing an impact on a boom of an excavator and a method of controlling the same are disclosed, which can minimize the vibration occurring in the boom due to the impact on a boom cylinder by actively controlling an amount of hydraulic fluid being supplied to the boom cylinder when the operation of the boom cylinder is suddenly stopped due to an operator's sudden manipulation of an operation lever for a working device. The apparatus includes first and second hydraulic pumps; a boom cylinder; a main control valve; an operation lever for supplying pilot signal pressure to a spool of the main control valve when an operator manipulates the operation lever; operation lever detection means for detecting boom up and boom down signal pressures according to an amount of manipulation of the operation lever; boom cylinder pressure detection means for detecting pressures generated in a large chamber and a small chamber of the boom cylinder; a controller for calculating and outputting a control signal of the main control valve if the boom cylinder has been suddenly stopped; and boom vibration preventing means for controlling the pilot signal pressure being supplied from the second hydraulic pump to the main control valve.
    • 公开了一种用于减轻对挖掘机的起重臂的冲击的装置及其控制方法,其可以通过主动地控制供给至动臂的液压流体的量来最小化由于对动臂缸的冲击而引起的动臂中产生的振动 当操作者突然操作用于工作装置的操作杆时,动臂缸的操作突然停止时的动臂缸。 该装置包括第一和第二液压泵; 动臂缸; 主控阀; 操作杆,用于当操作者操作操作杆时,将主控信号压力提供给主控制阀的阀芯; 操作杆检测装置,用于根据操作杆的操纵量检测吊杆上升和吊杆下降信号压力; 用于检测在动臂缸的大室和小室中产生的压力的动臂缸压力检测装置; 控制器,用于如果动臂缸突然停止则计算和输出主控制阀的控制信号; 以及用于控制从第二液压泵供给至主控制阀的先导信号压力的起重臂振动防止装置。
    • 43. 发明授权
    • Apparatus and method for hybrid detection of memory data
    • 用于存储器数据的混合检测的装置和方法
    • US07831881B2
    • 2010-11-09
    • US12230832
    • 2008-09-05
    • Heeseok EunJae Hong KimJun Jin Kong
    • Heeseok EunJae Hong KimJun Jin Kong
    • H04L1/00
    • G11C29/52G11C11/5642G11C29/00G11C2029/0411G11C2211/5634
    • The data detecting apparatus may provide a voltage comparison unit that compares a reference voltage, associated with a specific data bit from among a plurality of data bits stored in a memory cell, with a threshold voltage in the memory cell, a detection unit that detects a value of the specific data bit based on a result of the voltage comparison unit, and a decision unit that decides whether the specific data bit is successfully detected based on whether an error occurs in the detected data. The detection unit may re-detect a value of the specific data bit based on detection information with respect to at least one of an upper data bit and a lower data bit in relation to the specific data bit, in response to a result of the decision unit.
    • 数据检测装置可以提供电压比较单元,其将存储在存储单元中的多个数据位中的与特定数据位相关联的参考电压与存储单元中的阈值电压进行比较,检测单元检测 基于电压比较单元的结果的特定数据位的值,以及判定单元,其基于检测到的数据中是否发生错误来判定是否成功检测到特定数据位。 响应于决定的结果,检测单元可以基于关于特定数据比特的上位数据位和下位数据位中的至少一个的检测信息重新检测特定数据位的值 单元。