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    • 58. 发明授权
    • Apparatus and method for controlling viewing of video signals
    • 用于控制视频信号观看的装置和方法
    • US06698019B1
    • 2004-02-24
    • US09640368
    • 2000-08-17
    • Do Hyun KimMyeong Joon Kang
    • Do Hyun KimMyeong Joon Kang
    • H04N716
    • H04N21/435H04N7/163H04N7/165H04N21/235H04N21/4348H04N21/4532H04N21/454H04N21/4753H04N21/84
    • An apparatus and method for controlling viewing of video programs. The apparatus includes a signal unit for receiving and processing a video signal, a decoding unit for decoding a grade code of a video program contained in the video signal, a key input unit for receiving control data from a user wherein the control data includes a secret number, a storage unit for prestoring a grade code and a secret number, and a control unit for comparing the decoded grade code with the prestored grade code, comparing the secret number inputted to the key input unit with the prestored secret number if the decoded grade code matches the prestored grade code, and outputting the video signal to the user if the secret numbers match.
    • 一种用于控制视频节目观看的装置和方法。 该装置包括用于接收和处理视频信号的信号单元,用于解码包含在视频信号中的视频节目的等级代码的解码单元,用于从用户接收控制数据的键输入单元,其中控制数据包括秘密 编号,用于预设等级代码和秘密号码的存储单元,以及用于将解码的等级代码与预存的等级代码进行比较的控制单元,如果解码的等级代码将输入到密钥输入单元的密码与预先存储的密码进行比较 代码与预存的等级代码相匹配,并且如果密码匹配则将视频信号输出给用户。
    • 60. 发明授权
    • System for preventing malfunction of a switching circuit for linear motor
    • 用于防止线性电机开关电路发生故障的系统
    • US06274953B1
    • 2001-08-14
    • US09544448
    • 2000-04-07
    • Ji Hyun HwangDo Hyun KimHyun Joo HwangJang Sung Chun
    • Ji Hyun HwangDo Hyun KimHyun Joo HwangJang Sung Chun
    • H02K4100
    • H02P6/006H02K29/08H02K41/03
    • There is disclosed a system for preventing malfunction of a switching circuit for a linear motor capable of preventing malfunction of the switching circuit due to magnet flux from the permanent magnet mounted on the movable element, the system including sensing magnets provided at a longitudinal one side of a movable element having a plurality of permanent magnets mounted thereon, a plurality of Hall sensors mounted on the stator element and used for controlling current flow into a plurality of armature coils by turning on/off a switching circuit, based upon the sensing of magnet flux generated from the sensing magnets, and dummy sensing magnet provided at one side end of the sensing magnet in such a manner that its polarity is opposite to that of the sensing magnet, and for preventing magnets flux generated from the plural permanent magnets from introducing into the plural Hall sensors.
    • 公开了一种用于防止用于线性电动机的开关电路的故障的系统,其能够防止由于安装在可移动元件上的永磁体的磁通量而导致的开关电路的故障,该系统包括设置在可动元件的纵向一侧的感测磁体 具有安装在其上的多个永磁体的可移动元件,安装在定子元件上的多个霍尔传感器,用于通过接通/断开开关电路来控制电流流入多个电枢线圈,基于磁通量 从感测磁体产生的虚拟感测磁体和设置在感测磁体的一个侧端处的虚拟感测磁体,使得其极性与感测磁体的极性相反,并且用于防止从多个永磁体产生的磁体引入到 多个霍尔传感器。