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    • 3. 发明申请
    • APPARATUS AND METHOD FOR GENERATING TRACKING ERROR SIGNAL
    • 用于产生跟踪误差信号的装置和方法
    • US20080056081A1
    • 2008-03-06
    • US11684209
    • 2007-03-09
    • Tatsuhiro OtsukaKyung-geun LeeAn-sik JeongIn-joo Kim
    • Tatsuhiro OtsukaKyung-geun LeeAn-sik JeongIn-joo Kim
    • G11B7/0037
    • G11B7/0906G11B7/131G11B2007/0013
    • An apparatus and method for generating a tracking error signal (TES). A low level TES is prevented from being generated due to noise in an optical disk drive for reproducing a high-density multi-layered optical disk. The apparatus includes: an N-split optical reception element to receive light reflected by a disk loaded in the optical disk drive, a phase difference signal detection module to detect a plurality of phase difference signals using signals output from the N-split optical reception element, a pulse width modulation module to modulate pulse widths of the plurality of phase difference signals so that the pulse widths of the plurality of phase difference signals are magnified, and a difference detector to detect a difference between the plurality of phase difference signals whose pulse widths are modulated and outputting the detected difference as the TES. N may be a positive integer.
    • 一种用于产生跟踪误差信号(TES)的装置和方法。 由于用于再现高密度多层光盘的光盘驱动器中的噪声,防止产生低电平TES。 该装置包括:N分割光接收元件,用于接收由装载在光盘驱动器中的光反射的光;相差信号检测模块,用于使用从N分割光接收元件输出的信号来检测多个相位差信号 用于调制多个相位差信号的脉冲宽度的脉冲宽度调制模块,使多个相位差信号的脉冲宽度被放大;差分检测器,用于检测多个相位差信号的脉冲宽度 被调制并输出检测到的差异作为TES。 N可以是正整数。
    • 8. 发明授权
    • Image forming apparatus and method of controlling fusing temperature of the same
    • 图像形成装置及其熔接温度的控制方法
    • US08953964B2
    • 2015-02-10
    • US13617735
    • 2012-09-14
    • An-sik JeongYong-geun Kim
    • An-sik JeongYong-geun Kim
    • G03G15/20
    • G03G15/2039
    • An image forming apparatus having two or more different rated voltages, the image forming apparatus including a voltage detecting unit, which detects a voltage level of alternating current (AC) power supplied from outside of the image forming apparatus; a control unit, which outputs a control signal according to the detected voltage level; a fusion driving circuit, which controls a number of waveforms and phase of the AC power according to the control signal and outputs the controlled AC power as fusing power; and a fuser including a heat generating body having a negative temperature coefficient (NTC) characteristic, which receives the fusing power and generates resistance heat; and a heating member, which is heated by the heat generated by the resistance heat generating body and fuses an image formed on a printing medium.
    • 一种具有两个或多个不同额定电压的图像形成装置,所述图像形成装置包括电压检测单元,其检测从所述图像形成装置的外部提供的交流电(AC)电压的电压电平; 控制单元,其根据检测到的电压电平输出控制信号; 融合驱动电路,其根据控制信号控制交流电力的数量波形和相位,并输出受控交流电力作为融合功率; 以及定影器,其包括具有负温度系数(NTC)特性的发热体,其接收所述定影功率并产生电阻热; 以及由电阻发热体产生的热量加热并加热形成在打印介质上的图像的加热构件。