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    • 1. 发明授权
    • Steering system for wheeled construction equipment
    • 轮式施工设备转向系统
    • US09248855B2
    • 2016-02-02
    • US14364272
    • 2011-12-13
    • Hyung-Seok ParkSung-Yong Jo
    • Hyung-Seok ParkSung-Yong Jo
    • B62D5/09B62D6/00B62D5/06B62D5/093E02F9/22
    • B62D5/062B62D5/064B62D5/093B62D6/007E02F9/225
    • Disclosed is a steering system which is capable of ensuring that a wheeled excavator travels straight while being driven on a paved road. The steering system for wheeled construction equipment includes: a hydraulic oil pump; a steering motor connected to the hydraulic oil pump; a steering valve controlling the operation of the steering motor; a steering handle operating the steering motor and the steering valve according to steering manipulation by the driver; and a steering cylinder steered by the manipulation of the steering handle. The steering system further includes an idle mode control unit which converts working mode into a steering mode not having straight line driving recovery performance when working mode, in which working and driving are enabled, is selected, and which converts exclusive driving mode into a steering mode having the straight line driving recovery performance through a signal input when the exclusive driving mode, in which only driving is enabled, is selected.
    • 公开了一种转向系统,其能够确保轮式挖掘机在铺设的道路上被驱动时直线行进。 轮式施工设备的转向系统包括:液压油泵; 连接到液压油泵的转向马达; 控制转向电动机的操作的转向阀; 根据驾驶员的转向操纵操纵转向马达和转向阀的转向手柄; 以及通过操纵转向手柄转向的转向盘。 该转向系统还包括空转模式控制单元,其将工作模式转换成在选择工作和驾驶的工作模式下不具有直线驱动恢复性能的转向模式,并且将排他驾驶模式转换为转向模式 当选择仅驱动启动的排他驾驶模式时,通过信号输入具有直线驱动恢复性能。
    • 6. 发明申请
    • CHAIR FOR EASY-SITTING AND EASY-RISING MOTIONS
    • 主席轻松快乐的动作
    • US20130069407A1
    • 2013-03-21
    • US13701459
    • 2011-05-31
    • Won Seuk ParkHyung Seok Park
    • Won Seuk ParkHyung Seok Park
    • A61G5/14
    • A61G5/14F16F9/0209F16F13/007
    • A chair for easy-sitting and easy-rising motions includes: a seat plate; a base that contacts the ground under the seat plate and supports a structure of the chair; an extensible support unit whose upper end portion is pivotably fixed to a rear portion of the seat plate and lower end portion is pivotably fixed to a front portion of the base; a second support rod whose upper end portion is pivotably fixed to the front portion of the seat plate and lower end portion is pivotably fixed to the rear portion of the base; and a guide rod that guides pivotal movements of the extensible support unit and the second support rod. When a user's weight is applied to the seat plate, since the seat plate is slowly lowered by changing its angle, the user may easily and safely sit on the chair, and the user may also easily rise from the chair.
    • 一个容易坐姿和容易上升的动作的椅子包括:座板; 接触座板下面的地面并支撑椅子的结构的基座; 一个可伸缩的支撑单元,其上端可枢转地固定在座板的后部和下端部分上,可枢转地固定在基座的前部; 第二支撑杆,其上端部可枢转地固定到座板的前部,下端部可枢转地固定在基座的后部; 以及引导杆,其引导可伸展支撑单元和第二支撑杆的枢转运动。 当用户的重量施加到座板上时,由于座板通过改变其角度而被缓慢地降低,使用者可以容易且安全地坐在椅子上,使用者也可以容易地从椅子上升起。
    • 7. 发明授权
    • Nonvolatile memory, mapping control apparatus and method of the same
    • 非易失性存储器,映射控制装置及其方法相同
    • US07899974B2
    • 2011-03-01
    • US11330074
    • 2006-01-12
    • Hyung-seok Park
    • Hyung-seok Park
    • G06F12/00
    • G06F12/0246
    • A nonvolatile memory and a mapping control apparatus and method of the same are disclosed, whereby block state information is changed depending on an operation performed by the nonvolatile memory to efficiently access a flash memory. The mapping control apparatus comprises a nonvolatile memory that has an area divided into blocks and stores block state information representing the state of written data, and a control unit that determines a block for a data operation through the block state information when the data operation is performed in the nonvolatile memory, and that updates the block state information depending on the result of the performed data operation.
    • 公开了一种非易失性存储器及其映射控制装置及方法,根据由非易失性存储器执行的操作来改变块状态信息以有效地访问闪存。 映射控制装置包括非易失性存储器,该非易失性存储器具有被划分成块的区域并且存储表示写入数据的状态的块状态信息,以及控制单元,当执行数据操作时,通过块状态信息确定用于数据操作的块 在非易失性存储器中,并且根据执行的数据操作的结果来更新块状态信息。
    • 8. 发明授权
    • Flash memory and mapping control apparatus and method for flash memory
    • 闪存和闪存映射控制装置和方法
    • US07287117B2
    • 2007-10-23
    • US10893344
    • 2004-07-19
    • Tae-sun ChungHyung-seok ParkMyung-jin Jung
    • Tae-sun ChungHyung-seok ParkMyung-jin Jung
    • G06F12/00
    • G06F12/0246
    • A mapping algorithm for efficient access to a flash memory, wherein block state information that is changed through logical operations required by a processor is written in the flash memory according to a predetermined state transition algorithm and the changed information is referred to upon read/write operations. A mapping control apparatus for a flash memory according to the present invention includes a flash memory having regions divided on a block basis and containing block state information indicating the state of each block, each block including a predetermined number of sectors; and a processor for determining a sector on which a predetermined logical operation is to be performed based on the block state information and updating the block state information according to a predetermined state transition algorithm, when the logical operation is required for the flash memory.
    • 用于有效地访问闪速存储器的映射算法,其中根据预定的状态转换算法将由处理器所需的逻辑操作改变的块状态信息写入闪速存储器,并且在读/写操作中参考改变的信息 。 根据本发明的用于闪速存储器的映射控制装置包括闪存,其具有以块为基础划分的区域,并且包含指示每个块的状态的块状态信息,每个块包括预定数量的扇区; 以及处理器,用于当闪速存储器需要逻辑运算时,根据块状态信息确定要执行预定逻辑运算的扇区,并根据预定状态转换算法更新块状态信息。