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    • 1. 发明公开
    • 오디오 앰프의 출력 제어장치 및 그 방법
    • 音频放大器的输出控制装置及其方法
    • KR1020110050094A
    • 2011-05-13
    • KR1020090106938
    • 2009-11-06
    • 엘지전자 주식회사
    • 남재호
    • H03F3/217H03G3/10
    • PURPOSE: An output control device of an audio amp and method thereof are provided to protect an audio amp and a speaker end circuit from a voltage such as surge by blocking an amplification of an audio amp according to abnormal voltage. CONSTITUTION: A power supply(110) changes a commercial AC power source provided from external side into a DC current by needing an audio amplifier. An audio amplifier(130) changeably amplifies an audio signal inputted according to an operating voltage provided from the power supply according to a gain control signal. A voltage distribution unit(150) drops a voltage into a constant voltage by distributing a voltage outputted from the power supply. An amplifier control unit(170) determines a voltage level provided from an audio amp through a detected signal through the voltage distribution unit.
    • 目的:提供音频放大器的输出控制装置及其方法,以通过根据异常电压阻止音频放大器的放大来保护音频放大器和扬声器端电路免受诸如浪涌的电压的影响。 构成:电源(110)通过需要音频放大器将从外部侧提供的商用交流电源改变成直流电流。 音频放大器(130)根据增益控制信号可变地放大根据从电源提供的工作电压输入的音频信号。 电压分配单元(150)通过分配从电源输出的电压将电压降低到恒定电压。 放大器控制单元(170)通过电压分配单元确定通过检测信号从音频放大器提供的电压电平。
    • 2. 发明授权
    • 오디오 앰프의 출력 제어장치 및 그 방법
    • 音频放大器的输出控制装置及其方法
    • KR101597363B1
    • 2016-02-24
    • KR1020090106938
    • 2009-11-06
    • 엘지전자 주식회사
    • 남재호
    • H03F3/217H03G3/10
    • 본발명은오디오앰프의증폭이득을전원공급기(Power Supply Unit; PSU)에서공급되는전원에따라조절하는오디오앰프의출력제어장치및 그방법에관한것으로, 외부로부터공급된상용교류전원을오디오앰프에서필요로하는직류전원으로변환하여출력하는전원공급기와, 상기전원공급기로부터공급된동작전압에따라구동하되입력된오디오신호를이득제어신호에따라가변증폭하여출력하는오디오앰프와, 상기전원공급기의출력단과접지사이에직렬로연결되어전원공급기에서출력되는전압을분배하여일정전압으로강하시키는전압분배부, 및상기전압분배부를통해검출된신호를통해오디오앰프로공급되는전압레벨을판단하고, 판단된전압레벨에대응되는이득제어값을메모리로부터추출하여오디오앰프의증폭이득을제어하는앰프제어부를포함한다.
    • 3. 发明公开
    • 인터페이스 설정 방법 및 그 방법을 채용한 디지털 방송 수신기
    • 用于设置用户界面电路和数字广播接收器的方法启用方法
    • KR1020110080914A
    • 2011-07-13
    • KR1020100001356
    • 2010-01-07
    • 엘지전자 주식회사
    • 남재호권오영
    • H04N5/44H04N5/445
    • H04N5/44H04N5/445H04N5/44543
    • PURPOSE: An interface setup method and a digital broadcasting receiver adopting the same are provided to differently set up the indication direction or starting location of a pointer outputted to a display screen according to whether a user is left-handed or right-handed. CONSTITUTION: A digital broadcasting receiver receives sensing information about a left hander and a right hander or pointing information from a remote controller(S101). The digital broadcasting receiver determines whether the input direction of a user is a right direction or a left direction with the sensing information or the pointing information(S102). If the input direction is the right direction, the digital broadcasting receiver sets up an interface for right direction(S104). If the input direction is the left direction, the digital broadcasting receiver sets up an interface for left direction(S103).
    • 目的:提供一种接口设置方法和采用该方法的数字广播接收机,以根据用户是左撇子还是右撇子来不同地设置输出到显示屏幕的指针的指示方向或开始位置。 构成:数字广播接收机从遥控器接收关于左手和右手的感测信息或指示信息(S101)。 数字广播接收机利用感测信息或指示信息确定用户的输入方向是正确方向还是左方向(S102)。 如果输入方向是正确的方向,则数字广播接收机设置用于右方向的接口(S104)。 如果输入方向是左方向,则数字广播接收机设置用于左方向的接口(S103)。