公开(公告)号：US20090040567A1

公开(公告)日：2009-02-12

申请号：US12144816

申请日：2008-06-24

Applicant: Se-tae KIM

Inventor： Se-tae KIM

IPC: H04N1/04

CPC classification number: H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04756 ,  H04N2201/04794

Abstract: An image forming apparatus includes an image carrying body, a driving unit which rotates the image carrying body in a medium supplying direction, a light scanning unit which comprises a light source and a beam deflecting unit to scan a light beam from the light source to and fro in a main scanning direction to form a scanning line having an image section and a non image section, and a controller which stops the driving unit if the light beam from the beam deflecting unit is on the image section, and drives the driving unit if the light beam is on the non image section.

Abstract translation: 图像形成装置包括：图像承载体;在介质供给方向上使图像承载体旋转的驱动单元;光扫描单元，包括光源和光束偏转单元，用于将来自光源的光束扫描到 在主扫描方向上形成具有图像部分和非图像部分的扫描线，以及如果来自光束偏转单元的光束在图像部分上而停止驱动单元的控制器，并驱动驱动单元如果 光束在非图像部分上。

公开(公告)号：US20070053386A1

公开(公告)日：2007-03-08

申请号：US11503980

申请日：2006-08-15

Applicant: Se-Tae Kim

Inventor： Se-Tae Kim

IPC: H01S3/00

CPC classification number: G03G15/326 ,  G03G15/043

Abstract: An apparatus and a method for controlling an optical power level are provided. The apparatus includes a power supply unit supplying power in response to an exposure control signal corresponding to an input image signal and a light scanning unit driven using the power and irradiating light having optical power corresponding to an input sample-and-hold signal onto a photosensitive drum.

Abstract translation: 提供了一种用于控制光功率电平的装置和方法。 该装置包括：电源单元，响应于与输入图像信号相对应的曝光控制信号和使用该功率驱动的光扫描单元供电;以及将具有与输入采样保持信号相对应的光功率的光照射到感光体上 鼓。

公开(公告)号：US06295261B1

公开(公告)日：2001-09-25

申请号：US09199277

申请日：1998-11-25

Applicant: Se-Tae Kim

Inventor： Se-Tae Kim

IPC: G11B700

CPC classification number: G11B19/28

Abstract: A method of controlling a revolution speed of a spindle motor in an optical disk drive. Target RPMs and actual PWM signal values for maintaining the target RPMs are calculated according to recording linear velocities of an optical disk, and stored in a memory. The spindle motor is controlled by a PWM signal value greater than an actual PWM signal value for maintaining a desired target RPM, until an RPM of the spindle motor reaches the target RPM. Further, the spindle motor is controlled by the actual PWM signal value for maintaining the target RPM, when the RPM of the spindle motor reaches the target RPM.

Abstract translation: 一种控制光盘驱动器中的主轴电动机的转速的方法。 根据记录的光盘的线速度计算用于维持目标RPM的目标RPM和实际PWM信号值，并存储在存储器中。 主轴电动机由大于实际PWM信号值的PWM信号值控制，以维持所需的目标转速，直至主轴电动机的转速达到目标转速。 此外，当主轴电机的RPM达到目标RPM时，主轴电机由实际的PWM信号值控制，用于维持目标RPM。