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    • 1. 发明公开
    • 싱글 엔드 디지털앰프에서의 팝노이즈 제거방법 및 그시스템
    • 在单端数字放大器中移除POP噪声的方法和系统,涉及移除音频噪声时,在单端模式下操作单端数字放大器时,电源开/关时发生故障
    • KR1020040098925A
    • 2004-11-26
    • KR1020030031253
    • 2003-05-16
    • 엔시트론 주식회사김민수최영하박경수
    • 최영하박경수김민수
    • H03K17/16
    • H03F1/305H03F3/2171H03F2200/03H03F2200/351
    • PURPOSE: A method and a system for removing pop noise in a single-ended digital amplifier are provided to reduce or remove the pop noise by changing only a signal supply order. CONSTITUTION: A method for removing pop noise in a single-ended digital amplifier includes a process for supplying logic driving power, a process for supplying a PWM(Pulse Width Modulation) signal, and a process for supplying a transistor operating voltage. The process for supplying logic driving power is to supply the logic driving power to operate a digital amplifier. The process for supplying a PWM signal is to supply a PWM signal modulated by a PWM processor to an input unit of the PWM amplifier. The process for supplying the transistor operating voltage is to apply the transistor operating voltage to the PWM amplifier after the PWM signal is supplied to the input unit of the PWM amplifier.
    • 目的:提供一种用于消除单端数字放大器中的爆音噪声的方法和系统,以通过仅改变信号供应顺序来减少或消除爆音噪声。 构成:用于消除单端数字放大器中的弹出噪声的方法包括用于提供逻辑驱动功率的处理,用于提供PWM(脉宽调制)信号的处理以及提供晶体管工作电压的处理。 提供逻辑驱动功率的过程是提供用于操作数字放大器的逻辑驱动功率。 提供PWM信号的过程是将由PWM处理器调制的PWM信号提供给PWM放大器的输入单元。 提供晶体管工作电压的过程是在将PWM信号提供给PWM放大器的输入单元之后,将晶体管工作电压施加到PWM放大器。
    • 5. 发明公开
    • 디지털 앰프용 필터 내장 스피커
    • 扬声器用于数字放大器的内置滤波器
    • KR1020130071822A
    • 2013-07-01
    • KR1020110139262
    • 2011-12-21
    • 엔시트론 주식회사
    • 김수명김민수윤형섭
    • H04R9/02
    • H04R9/02H04R3/08H04R3/12H04R9/06H04R2227/003
    • PURPOSE: A filter for digital amplification embedding speaker is provided to miniaturize a digital device directly connecting to a digital amplification without a separate low pass filter and to lighten a weight. CONSTITUTION: A filter for digital amplification embedding speaker comprises a frame (100), a vibration unit (110), an upper plate (120), a lower plate (130), a magnet (140), filler (150), an inductor (160) and a voice coil (170). The vibration unit generates sound wave being equipped in the frame. The upper plate is equipped in a lower part of the frame. The lower plate is equipped under the upper plate. The magnet is equipped between the upper plate and the lower plate. The filler is equipped in between the upper plate and the lower plate to penetrate the magnet. The inductor is winded on an outer circumference of the filler. The voice coil is combined to the vibration unit and performs piston movement by a magnetic field generated by an audio signal.
    • 目的:提供一种用于数字放大嵌入式扬声器的滤波器,以便在没有单独的低通滤波器的情况下将直接连接到数字放大器的数字设备小型化并减轻重量。 构成:用于数字放大嵌入扬声器的滤波器包括框架(100),振动单元(110),上板(120),下板(130),磁体(140),填料(150),电感器 (160)和音圈(170)。 振动单元产生装在框架中的声波。 上板装在框架的下部。 下板装在上板下面。 磁铁配置在上板和下板之间。 填料装在上板和下板之间以穿透磁体。 电感器缠绕在填料的外圆周上。 音圈组合到振动单元,并通过音频信号产生的磁场进行活塞运动。