公开(公告)号：US08736196B2

公开(公告)日：2014-05-27

申请号：US12503303

申请日：2009-07-15

Applicant: Yun-Gun Lee ,  Ki-Bok Jang ,  Moon-Shik Kang ,  Sung-Kyu Park ,  Hyun-Ho Seo

Inventor： Yun-Gun Lee ,  Ki-Bok Jang ,  Moon-Shik Kang ,  Sung-Kyu Park ,  Hyun-Ho Seo

IPC: H05B37/02

CPC classification number: H05B41/2855 ,  G02F1/133604 ,  G09G3/342

Abstract: A backlight unit includes; a light source, an inverter which provides the light source with an input voltage, and a printed circuit board (“PCB”) connected to the light source, wherein the PCB includes a protection circuit which detects an open-lamp-protection voltage which varies according to a change of the input voltage and changes a reference voltage according to the change of the input voltage, wherein the protection circuit turns off the inverter when the detected open-lamp-protection voltage is higher than the changed reference voltage.

Abstract translation: 背光单元包括： 光源，向光源提供输入电压的逆变器，以及连接到光源的印刷电路板（“PCB”），其中PCB包括检测开关灯保护电压的保护电路，该保护电路变化 根据输入电压的变化，根据输入电压的变化来改变参考电压，其中当检测到的开路灯保护电压高于改变的参考电压时，保护电路关闭逆变器。

公开(公告)号：US09405170B2

公开(公告)日：2016-08-02

申请号：US13094226

申请日：2011-04-26

Applicant: Nam Jin Kim ,  Hyun Ho Seo

Inventor： Nam Jin Kim ,  Hyun Ho Seo

IPC: G03B3/10 ,  G03B13/36 ,  G03B17/20 ,  H04N5/232 ,  G02B7/36

CPC classification number: G03B13/36 ,  G02B7/36 ,  G03B17/20 ,  H04N5/23212 ,  H04N5/23293

Abstract: A method of continuous auto focusing a camera in a portable terminal is provided. The method includes setting an arbitrary area of a preview screen as a focus area, the preview screen being divided into at least one tracking area, focusing on a subject located within the focus area and fixing a focus of the subject, and adjusting the focus with respect to the focus area when a movement of the subject is detected within the tracking area that includes the focus area.

Abstract translation: 提供了一种将便携式终端中的相机连续自动聚焦的方法。 该方法包括将预览屏幕的任意区域设置为焦点区域，将预览屏幕分为至少一个跟踪区域，聚焦在位于焦点区域内的被摄体并且固定被摄体的焦点，并且用 当在包括对焦区域的跟踪区域内检测到被摄体的移动时，相对于对焦区域。

公开(公告)号：US20120121241A1

公开(公告)日：2012-05-17

申请号：US13094226

申请日：2011-04-26

Applicant: Nam Jin KIM ,  Hyun Ho SEO

Inventor： Nam Jin KIM ,  Hyun Ho SEO

IPC: G03B13/00

CPC classification number: G03B13/36 ,  G02B7/36 ,  G03B17/20 ,  H04N5/23212 ,  H04N5/23293

Abstract: A method of continuous auto focusing a camera in a portable terminal is provided. The method includes setting an arbitrary area of a preview screen as a focus area, the preview screen being divided into at least one tracking area, focusing on a subject located within the focus area and fixing a focus of the subject, and adjusting the focus with respect to the focus area when a movement of the subject is detected within the tracking area that includes the focus area.

Abstract translation: 提供了一种将便携式终端中的相机连续自动聚焦的方法。 该方法包括将预览屏幕的任意区域设置为焦点区域，将预览屏幕分为至少一个跟踪区域，聚焦在位于焦点区域内的被摄体并且固定被摄体的焦点，并且用 当在包括对焦区域的跟踪区域内检测到被摄体的移动时，相对于对焦区域。

公开(公告)号：US08346410B2

公开(公告)日：2013-01-01

申请号：US12576203

申请日：2009-10-08

Applicant: Hyun Ho Seo ,  Ki Lyuk Yong ,  Shi Hwan Oh ,  Hong Taek Choi ,  Seon Ho Lee ,  Jo Ryeong Yim ,  Yong Bok Kim ,  Hye Jin Lee

Inventor： Hyun Ho Seo ,  Ki Lyuk Yong ,  Shi Hwan Oh ,  Hong Taek Choi ,  Seon Ho Lee ,  Jo Ryeong Yim ,  Yong Bok Kim ,  Hye Jin Lee

IPC: G05D1/00

CPC classification number: B64G1/26 ,  B64G1/283 ,  B64G2001/245 ,  G05D1/0883

Abstract: Provided are an attitude control system and method of a spacecraft of an artificial satellite that may enhance a maneuverability and a controllability by simultaneously applying a reaction wheel and a thruster among drive units used to maneuver an attitude of the spacecraft of the artificial satellite. The attitude control system may include: a thruster-based attitude controller which control firing time of thrusters mounted on the spacecraft; and a reaction wheel-based attitude controller controlling driving of a reaction wheel mounted on the spacecraft. The spacecraft may include a plurality of reaction wheels. When a defect occurs in the spacecraft due to a partial malfunction of the reaction wheels, an attitude maneuverability of the spacecraft may be corrected by simultaneously applying the thruster-based attitude controller and the reaction wheel-based attitude controller.

Abstract translation: 提供了一种人造卫星的航天器的姿态控制系统和方法，其可以通过在用于操纵人造卫星的航天器的姿态的驱动单元中同时施加反作用轮和推进器来增强机动性和可控性。 姿态控制系统可以包括：基于推进器的姿态控制器，其控制安装在航天器上的推进器的点火时间; 以及控制驱动安装在航天器上的反作用轮的反作用轮式姿态控制器。 航天器可以包括多个反作用轮。 当由于反射轮的部分故障而在航天器中发生缺陷时，可以通过同时施加基于推进器的姿态控制器和基于反作用轮的姿态控制器来校正航天器的姿态机动性。

公开(公告)号：US20100091220A1

公开(公告)日：2010-04-15

申请号：US12503303

申请日：2009-07-15

Applicant: Yun-Gun LEE ,  Ki-Bok JANG ,  Moon-Shik KANG ,  Sung-Kyu PARK ,  Hyun-Ho SEO

Inventor： Yun-Gun LEE ,  Ki-Bok JANG ,  Moon-Shik KANG ,  Sung-Kyu PARK ,  Hyun-Ho SEO

IPC: H05B41/36 ,  G02F1/1335

CPC classification number: H05B41/2855 ,  G02F1/133604 ,  G09G3/342

Abstract: A backlight unit includes; a light source, an inverter which provides the light source with an input voltage, and a printed circuit board (“PCB”) connected to the light source, wherein the PCB includes a protection circuit which detects an open-lamp-protection voltage which varies according to a change of the input voltage and changes a reference voltage according to the change of the input voltage, wherein the protection circuit turns off the inverter when the detected open-lamp-protection voltage is higher than the changed reference voltage.

Abstract translation: 背光单元包括： 光源，向光源提供输入电压的逆变器，以及连接到光源的印刷电路板（“PCB”），其中PCB包括检测开关灯保护电压的保护电路，该保护电路变化 根据输入电压的变化，根据输入电压的变化来改变参考电压，其中当检测到的开路灯保护电压高于改变的参考电压时，保护电路关闭逆变器。

公开(公告)号：US20100168938A1

公开(公告)日：2010-07-01

申请号：US12576203

申请日：2009-10-08

Applicant: Hyun Ho Seo ,  Ki Lyuk Yong ,  Shi Hwan Oh ,  Hong Taek Choi ,  Seon Ho Lee ,  Jo Ryeong Yim ,  Yong Bok Kim ,  Hye Jin Lee

Inventor： Hyun Ho Seo ,  Ki Lyuk Yong ,  Shi Hwan Oh ,  Hong Taek Choi ,  Seon Ho Lee ,  Jo Ryeong Yim ,  Yong Bok Kim ,  Hye Jin Lee

IPC: G05D1/00 ,  B64G1/28 ,  B64G1/26

CPC classification number: B64G1/26 ,  B64G1/283 ,  B64G2001/245 ,  G05D1/0883

Abstract: Provided are an attitude control system and method of a spacecraft of an artificial satellite that may enhance a maneuverability and a controllability by simultaneously applying a reaction wheel and a thruster among drive units used to maneuver an attitude of the spacecraft of the artificial satellite. The attitude control system may include: a thruster-based attitude controller which control firing time of thrusters mounted on the spacecraft; and a reaction wheel-based attitude controller controlling driving of a reaction wheel mounted on the spacecraft. The spacecraft may include a plurality of reaction wheels. When a defect occurs in the spacecraft due to a partial malfunction of the reaction wheels, an attitude maneuverability of the spacecraft may be corrected by simultaneously applying the thruster-based attitude controller and the reaction wheel-based attitude controller.

Abstract translation: 提供了一种人造卫星的航天器的姿态控制系统和方法，其可以通过在用于操纵人造卫星的航天器的姿态的驱动单元中同时施加反作用轮和推进器来增强机动性和可控性。 姿态控制系统可以包括：基于推进器的姿态控制器，其控制安装在航天器上的推进器的点火时间; 以及控制驱动安装在航天器上的反作用轮的反作用轮式姿态控制器。 航天器可以包括多个反作用轮。 当由于反射轮的部分故障而在航天器中发生缺陷时，可以通过同时施加基于推进器的姿态控制器和基于反作用轮的姿态控制器来校正航天器的姿态机动性。

公开(公告)号：US20090159753A1

公开(公告)日：2009-06-25

申请号：US12341393

申请日：2008-12-22

Applicant: Jo Ryeong Yim ,  Shi Hwan Oh ,  Seon Ho Lee ,  Hyun Ho Seo ,  Yong Bok Kim ,  Hye Jin Lee ,  Hong Taek Choi ,  Ki Lyuk Yong

Inventor： Jo Ryeong Yim ,  Shi Hwan Oh ,  Seon Ho Lee ,  Hyun Ho Seo ,  Yong Bok Kim ,  Hye Jin Lee ,  Hong Taek Choi ,  Ki Lyuk Yong

IPC: B64G1/28

CPC classification number: B64G1/283 ,  B64G2001/245

Abstract: A reaction wheel momentum management method using a null space vector is provided. In accordance with this method, when any one of at least four reaction wheels used for triaxial control is made unavailable or degraded, a degraded wheel is used as long as possible for improving the mobility of the behavior of a satellite. The method provides momentum management for an N-number of reaction wheels W1, W2, . . . WN used for triaxial control of a satellite B by using a null space vector, and includes the steps of: (S10) measuring the current speed and momentum of the wheels in real time and comparing the measured current speed and momentum with a preset maximum speed and momentum; (S20) calculating a zero torque Tn based on a difference between the current speed and momentum and the maximum speed Wi,max and momentum Hi,max by the step (S10); (S30) adding the zero torque acquired by the step (S20) to a wheel torque Ta required for controlling and stabilizing the attitude of the satellite; and (S40) making the wheels reach an optimum bias momentum state by using the input torque of the wheels acquired by the step (S30).

Abstract translation: 提供了使用零空间矢量的反作用力矩管理方法。 根据该方法，当用于三轴控制的至少四个反作用轮中的任何一个使得不可用或劣化时，尽可能长时间地使用降级的轮来改善卫星的行为的移动性。 该方法为N个反作用轮W1，W2提供动量管理。 。 。 WN用于通过使用零空间矢量对卫星B进行三轴控制，并且包括以下步骤：（S10）实时测量车轮的当前速度和动量，并将测量的当前速度和动量与预设最大速度进行比较 和势头; （S20）通过步骤（S10），基于当前速度和动量与最大速度Wi，max和动量Hi，max之间的差计算零转矩Tn; （S30）将由步骤（S20）获取的零转矩加到控制和稳定卫星姿态所需的车轮转矩Ta上; （S40）通过使用由步骤（S30）获取的车轮的输入转矩使车轮达到最佳偏压动量状态。