公开(公告)号：US07158390B2

公开(公告)日：2007-01-02

申请号：US10901811

申请日：2004-07-29

申请人： Jae-Soon Choi ,  Dong-Hee Kim ,  Jae-Gon Seo ,  Hong-Gyu Han

发明人： Jae-Soon Choi ,  Dong-Hee Kim ,  Jae-Gon Seo ,  Hong-Gyu Han

IPC分类号： H02M3/335

CPC分类号： H02M7/523 ,  H02M3/33507 ,  H02M3/33569 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A converter is presented, including first and second switches coupled to an input power source to define a first conductive path, and third and fourth switches coupled to the input power source to define a second conductive path. A PWM unit turns on the switches in the order of the fourth, first, third, second, first, fourth, second, and third switches, and outputs pulse signals so that the first and fourth switches are turned on in overlapping intervals and the second and third switches are turned on in overlapping intervals.

摘要翻译： 提供A转换器，包括耦合到输入电源以限定第一导电路径的第一和第二开关，以及耦合到输入电源以限定第二导电路径的第三和第四开关。 PWM单元按照第四，第一，第三，第二，第一，第四，第二和第三开关的顺序接通开关，并且输出脉冲信号，使得第一和第四开关以重叠间隔被接通，而第二开关 并且以重叠的间隔打开第三开关。

公开(公告)号：US20050128772A1

公开(公告)日：2005-06-16

申请号：US10901811

申请日：2004-07-29

申请人： Jae-Soon Choi ,  Dong-Hee Kim ,  Jae-Gon Seo ,  Hong-Gyu Han

发明人： Jae-Soon Choi ,  Dong-Hee Kim ,  Jae-Gon Seo ,  Hong-Gyu Han

IPC分类号： H02M3/28 ,  H02M3/335 ,  H02M7/48 ,  H02M7/523

CPC分类号： H02M7/523 ,  H02M3/33507 ,  H02M3/33569 ,  H02M2007/4815 ,  Y02B70/1441

摘要： A converter is presented, including first and second switches coupled to an input power source to define a first conductive path, and third and fourth switches coupled to the input power source to define a second conductive path. A PWM unit turns on the switches in the order of the fourth, first, third, second, first, fourth, second, and third switches, and outputs pulse signals so that the first and fourth switches are turned on in overlapping intervals and the second and third switches are turned on in overlapping intervals.

摘要翻译： 提供A转换器，包括耦合到输入电源以限定第一导电路径的第一和第二开关，以及耦合到输入电源以限定第二导电路径的第三和第四开关。 PWM单元按照第四，第一，第三，第二，第一，第四，第二和第三开关的顺序接通开关，并且输出脉冲信号，使得第一和第四开关以重叠间隔被接通，而第二开关 并且以重叠的间隔打开第三开关。

公开(公告)号：US20110001433A1

公开(公告)日：2011-01-06

申请号：US12825635

申请日：2010-06-29

申请人： Dong-Hun LEE ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

发明人： Dong-Hun LEE ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： An LED light emitting device and a method of driving the same are provided, and technology that can uniformly sustain the magnitude of a channel current flowing to a plurality of LED channels is disclosed. The LED light emitting device includes: a plurality of LED channels that are formed with a plurality of LED elements that are continuously connected in series; and a constant current source that controls each channel current flowing to the plurality of LED channels according to a predetermined channel reference current to be a predetermined setting channel current, wherein the constant current source includes a plurality of operating amplifiers that control the magnitude of each of the channel currents, and a feedback voltage generating according to a predetermined offset reference current is input to a second input terminal of an operating amplifier for an offset setting period that sets an offset voltage of the plurality of operating amplifiers, a reference voltage generating according to a channel reference current is input to a first input terminal of the operating amplifier, and an offset voltage of each of the plurality of operating amplifiers is set so that an actual channel current may be identical to a predetermined setting channel current.

摘要翻译： 提供了一种LED发光器件及其驱动方法，并且公开了能够均匀地维持流向多个LED通道的沟道电流的大小的技术。 LED发光装置包括：多个LED通道，其形成有连续串联连接的多个LED元件; 以及恒定电流源，其根据预定的通道参考电流来控制流向所述多个LED通道的每个通道电流为预定设定通道电流，其中所述恒流源包括多个运算放大器，所述多个运算放大器控制每个 根据预定的偏移参考电流产生的通道电流和反馈电压被输入到运算放大器的第二输入端，用于设置多个运算放大器的偏移电压的偏移设置周期，根据 通道参考电流被输入到运算放大器的第一输入端，并且设置多个运算放大器中的每一个的偏移电压，使得实际的通道电流可以与预定的设定通道电流相同。

公开(公告)号：US08525433B2

公开(公告)日：2013-09-03

申请号：US12825635

申请日：2010-06-29

申请人： Dong-Hun Lee ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

发明人： Dong-Hun Lee ,  Kyung-Goo Lee ,  Hong-Gyu Han ,  Jung-Won Kim ,  Dong-Hee Kim

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： An LED light emitting device and a method of driving the same are provided, and technology that can uniformly sustain the magnitude of a channel current flowing to a plurality of LED channels is disclosed. The LED light emitting device includes: a plurality of LED channels that are formed with a plurality of LED elements that are continuously connected in series; and a constant current source that controls each channel current flowing to the plurality of LED channels according to a predetermined channel reference current to be a predetermined setting channel current, wherein the constant current source includes a plurality of operating amplifiers that control the magnitude of each of the channel currents, and a feedback voltage generating according to a predetermined offset reference current is input to a second input terminal of an operating amplifier for an offset setting period that sets an offset voltage of the plurality of operating amplifiers, a reference voltage generating according to a channel reference current is input to a first input terminal of the operating amplifier, and an offset voltage of each of the plurality of operating amplifiers is set so that an actual channel current may be identical to a predetermined setting channel current.

摘要翻译： 提供了一种LED发光器件及其驱动方法，并且公开了能够均匀地维持流向多个LED通道的沟道电流的大小的技术。 LED发光装置包括：多个LED通道，其形成有连续串联连接的多个LED元件; 以及恒定电流源，其根据预定的通道参考电流来控制流向所述多个LED通道的每个通道电流为预定设定通道电流，其中所述恒流源包括多个运算放大器，所述多个运算放大器控制每个 根据预定的偏移参考电流产生的通道电流和反馈电压被输入到运算放大器的第二输入端，用于设置多个运算放大器的偏移电压的偏移设置周期，根据 通道参考电流被输入到运算放大器的第一输入端，并且设置多个运算放大器中的每一个的偏移电压，使得实际的通道电流可以与预定的设定通道电流相同。

公开(公告)号：US20060177126A1

公开(公告)日：2006-08-10

申请号：US11245087

申请日：2005-10-07

申请人： Hong-Gyu Han

发明人： Hong-Gyu Han

IPC分类号： G06K9/62 ,  G06K9/40

CPC分类号： G06T5/005 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/20084

摘要： An apparatus for compensating an image by using a probabilistic neural network theory and a method thereof are disclosed. The image compensating apparatus includes: an error pixel detecting unit for detecting an error pixel generating an error among pixels included in a current image frame; and a neural network unit for storing a learning result of the current image frame by learning the current image frame and estimating a pixel value of the error pixel detected form the error pixel detecting unit by using the learning result of a previous image frame. The apparatus and method provides a high quality image to a user and can facilitate an artificial intelligence (AI) image compensating apparatus.

摘要翻译： 公开了一种利用概率神经网络理论补偿图像的方法及其方法。 图像补偿装置包括：误差像素检测单元，用于检测在当前图像帧中包括的像素之间产生误差的误差像素; 以及神经网络单元，用于通过学习当前图像帧来存储当前图像帧的学习结果，并且通过使用先前图像帧的学习结果来估计从误差像素检测单元检测到的误差像素的像素值。 该装置和方法向用户提供高质量的图像，并且可以促进人造智能（AI）图像补偿装置。