公开(公告)号：US20100327772A1

公开(公告)日：2010-12-30

申请号：US12825445

申请日：2010-06-29

申请人： Dong-Hun LEE ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Seok-Mun Choi

发明人： Dong-Hun LEE ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Seok-Mun Choi

IPC分类号： H05B41/36

CPC分类号： H05B33/0818 ,  H05B33/0827 ,  Y02B20/347

摘要： A control device and an LED light emitting device using the same are provided and technology of providing a high contrast ratio to the LED light emitting device and allowing the LED light emitting device to perform a stable operation is disclosed. The LED light emitting device includes a DC/DC converter reference voltage generator that generates a DC/DC converter reference voltage so that a minimum level of a channel voltage having a largest LED voltage drop agrees with a predetermined minimum reference voltage by detecting a plurality of channel voltages corresponding to LED voltage drops of each of a plurality of LED channels LED and an output voltage controller that controls an output voltage of the DC/DC converter using a distribution voltage corresponding to an output voltage and the DC/DC converter reference voltage.

摘要翻译： 提供了一种控制装置和使用其的LED发光装置，并且公开了向LED发光装置提供高对比度并允许LED发光装置执行稳定操作的技术。 LED发光装置包括DC / DC转换器参考电压发生器，其产生DC / DC转换器参考电压，使得具有最大LED电压降的通道电压的最小电平与预定的最小参考电压一致，通过检测多个 对应于多个LED通道LED中的每一个的LED电压降的通道电压以及使用对应于输出电压和DC / DC转换器参考电压的分配电压来控制DC / DC转换器的输出电压的输出电压控制器。

公开(公告)号：US07777464B2

公开(公告)日：2010-08-17

申请号：US11805872

申请日：2007-05-24

申请人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

发明人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

IPC分类号： G05F1/565

CPC分类号： H02M3/156

摘要： A mixed type frequency compensating circuit is disclosed. The mixed type frequency compensating circuit includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode. The proportional component sub-circuit amplifies the input voltage signal in a current mode. Accordingly, the mixed type frequency compensating circuit may occupy a small area in a semiconductor integrated circuit.

摘要翻译： 公开了一种混合型频率补偿电路。 混合型频率补偿电路包括电压放大器型频率补偿电路的整体分量子电路和跨导放大器型频率补偿电路的比例分量子电路。 积分分量子电路以电压模式放大输入电压信号。 比例分量子电路在当前模式下放大输入电压信号。 因此，混合型频率补偿电路可能在半导体集成电路中占据较小的面积。

公开(公告)号：US07750615B2

公开(公告)日：2010-07-06

申请号：US11888480

申请日：2007-08-01

申请人： Sang-Hwa Jung ,  Kyung-Goo Lee

发明人： Sang-Hwa Jung ,  Kyung-Goo Lee

IPC分类号： G05F1/40

CPC分类号： H02M3/156

摘要： The present invention relates to a converter and a driving method thereof. The converter uses an input voltage to generate an output voltage by a main switch's switching and applies power to a load, senses the current flowing to the main switch to generate a sense voltage, uses a first voltage corresponding to the current applied to the load and a sawtooth waveform signal having a first frequency to control a group frequency of the burst mode, controls the main switch's turn-on timing, and uses the first voltage and the sense voltage to determine whether to turn off the main switch, thereby controlling the main switch's switching. The converter determines the start and end of the period for switching according to the result of comparing the first voltage and the sawtooth waveform signal. Therefore, a converter for having a constant group frequency, preventing audible noise, and preventing output voltage ripple, and a driving method thereof, are provided.

摘要翻译： 本发明涉及一种转换器及其驱动方法。 转换器使用输入电压通过主开关的开关产生输出电压并向负载施加电力，感测流向主开关的电流以产生感测电压，使用与施加到负载的电流相对应的第一电压，以及 具有控制突发模式的组频率的第一频率的锯齿波形信号，控制主开关的导通定时，并且使用第一电压和感测电压来确定是否关闭主开关，从而控制主开关 开关切换。 根据比较第一电压和锯齿波形信号的结果，转换器确定用于切换的周期的开始和结束。 因此，提供了具有恒定组频率，防止可听见的噪声并且防止输出电压纹波的转换器及其驱动方法。

公开(公告)号：US20080106553A1

公开(公告)日：2008-05-08

申请号：US11935238

申请日：2007-11-05

申请人： Dong-Seop LEE ,  Kyung-Goo Lee

发明人： Dong-Seop LEE ,  Kyung-Goo Lee

IPC分类号： G09G5/02

CPC分类号： G09G5/00 ,  G09G3/2003 ,  G09G3/3607 ,  G09G5/02 ,  G09G2320/0613 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2340/0428 ,  G09G2340/14 ,  G09G2360/144

摘要： Provided is an apparatus and method for displaying a picture in a portable terminal. The method includes identifying a visibility color quality corresponding to the external brightness upon sensing of generation of a visibility control event, identifying external brightness, identifying a set color quality that is a color quality currently output to a display unit, comparing whether the visibility color quality is equal to the set color quality, and altering the set color quality into the visibility color quality when the comparison result is that the visibility color quality is not equal to the set color quality.

摘要翻译： 提供了一种用于在便携式终端中显示图像的装置和方法。 该方法包括在感测到可见度控制事件的产生时识别对应于外部亮度的可见度颜色质量，识别外部亮度，识别作为当前输出到显示单元的色彩质量的设定色彩质量，比较可见度色彩质量 等于设定的颜色质量，并且当比较结果是可见度颜色质量不等于设定的颜色质量时，将设置的颜色质量改变为可见度颜色质量。

公开(公告)号：US08934841B2

公开(公告)日：2015-01-13

申请号：US13194302

申请日：2011-07-29

申请人： Myung Geun Koh ,  Yi Kyu Min ,  Kyung Goo Lee ,  Byoung Il Son

发明人： Myung Geun Koh ,  Yi Kyu Min ,  Kyung Goo Lee ,  Byoung Il Son

IPC分类号： H04B7/00 ,  H04W76/02 ,  H04L29/06 ,  H04W12/00 ,  H04W12/02 ,  H04W84/18

CPC分类号： H04W76/02 ,  H04L63/0492 ,  H04L63/18 ,  H04W4/80 ,  H04W12/00 ,  H04W12/02 ,  H04W12/04 ,  H04W12/06 ,  H04W76/10 ,  H04W76/14 ,  H04W84/18

摘要： A Bluetooth communication method and system for enabling one Bluetooth device to rapidly connect to another Bluetooth device using an audio signal, and also enabling them to transmit data to each other are provided. The system includes first and second Bluetooth devices. The first Bluetooth device transforms authentication information required to establish a Bluetooth communication connection into an audio signal, and broadcasts the audio signal. The second Bluetooth device receives the audio signal and extracts the authentication information from the received audio signal. The second Bluetooth device establishes a Bluetooth communication channel with the first Bluetooth device, using the extracted authentication information.

摘要翻译： 一种蓝牙通信方法和系统，用于使一个蓝牙设备能够使用音频信号快速地连接到另一个蓝牙设备，并且还使得它们能够彼此传输数据。 该系统包括第一和第二蓝牙设备。 第一蓝牙设备将建立蓝牙通信连接所需的认证信息转换成音频信号，并且广播音频信号。 第二蓝牙设备接收音频信号并从接收到的音频信号中提取认证信息。 第二蓝牙设备使用提取的认证信息与第一蓝牙设备建立蓝牙通信信道。

公开(公告)号：US08648545B2

公开(公告)日：2014-02-11

申请号：US12825445

申请日：2010-06-29

申请人： Dong-Hun Lee ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Seok-Mun Choi

发明人： Dong-Hun Lee ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Seok-Mun Choi

IPC分类号： H05B37/02

CPC分类号： H05B33/0818 ,  H05B33/0827 ,  Y02B20/347

摘要： A control device and an LED light emitting device using the same are provided and technology of providing a high contrast ratio to the LED light emitting device and allowing the LED light emitting device to perform a stable operation is disclosed. The LED light emitting device includes a DC/DC converter reference voltage generator that generates a DC/DC converter reference voltage so that a minimum level of a channel voltage having a largest LED voltage drop agrees with a predetermined minimum reference voltage by detecting a plurality of channel voltages corresponding to LED voltage drops of each of a plurality of LED channels LED and an output voltage controller that controls an output voltage of the DC/DC converter using a distribution voltage corresponding to an output voltage and the DC/DC converter reference voltage.

摘要翻译： 提供了一种控制装置和使用其的LED发光装置，并且公开了向LED发光装置提供高对比度并允许LED发光装置执行稳定操作的技术。 LED发光装置包括DC / DC转换器参考电压发生器，其产生DC / DC转换器参考电压，使得具有最大LED电压降的通道电压的最小电平与预定的最小参考电压一致，通过检测多个 对应于多个LED通道LED中的每一个的LED电压降的通道电压以及使用对应于输出电压和DC / DC转换器参考电压的分配电压来控制DC / DC转换器的输出电压的输出电压控制器。

公开(公告)号：US20130009880A1

公开(公告)日：2013-01-10

申请号：US13312171

申请日：2011-12-06

申请人： Myung-Geun KOH ,  Tae-Youn KWON ,  Yi-Kyu MIN ,  Kyung-Goo LEE ,  Byoung-Il SON

发明人： Myung-Geun KOH ,  Tae-Youn KWON ,  Yi-Kyu MIN ,  Kyung-Goo LEE ,  Byoung-Il SON

IPC分类号： G06F3/02 ,  G06F3/033 ,  G06F3/041

CPC分类号： G06F3/04886 ,  G06F3/018 ,  G06F3/0233

摘要： Provided is a character inputting method and apparatus. The character inputting method includes displaying a first keypad on a touch screen while hiding a second keypad, sensing a touching of one of a plurality of regions partitioning the first keypad, dragging the touch releasing the touch to a position that is different than the touched region extracting a character of a region of the hidden second keypad, the extracted character being associated with a region of the hidden second keypad corresponding to the touched region of the first keypad, and displaying the extracted character of the second keypad on the touch screen.

摘要翻译： 提供一种字符输入方法和装置。 字符输入方法包括在隐藏第二键盘的同时在触摸屏上显示第一键盘，感测对划分第一键盘的多个区域中的一个区域的触摸，将触摸释放到不同于触摸区域的位置 提取所述隐藏的第二小键盘的区域的字符，所提取的字符与所述隐藏的第二键盘的与所述第一键盘的所触摸的区域相对应的区域相关联，并且在所述触摸屏上显示所提取的所述第二键盘的字符。

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：US20070273414A1

公开(公告)日：2007-11-29

申请号：US11805872

申请日：2007-05-24

申请人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

发明人： Sang-Hwa Jung ,  Dong-Hee Kim ,  Kyung-Goo Lee ,  Dong-Hoon Lee

IPC分类号： H03B19/00

CPC分类号： H02M3/156

摘要： A mixed type frequency compensating circuit is disclosed. The mixed type frequency compensating circuit includes an integral component sub-circuit of a voltage-amplifier-type frequency compensating circuit and a proportional component sub-circuit of a transconductance-amplifier-type frequency compensating circuit. The integral component sub-circuit amplifies an input voltage signal in a voltage mode. The proportional component sub-circuit amplifies the input voltage signal in a current mode. Accordingly, the mixed type frequency compensating circuit may occupy a small area in a semiconductor integrated circuit.

摘要翻译： 公开了一种混合型频率补偿电路。 混合型频率补偿电路包括电压放大器型频率补偿电路的整体分量子电路和跨导放大器型频率补偿电路的比例分量子电路。 积分分量子电路以电压模式放大输入电压信号。 比例分量子电路在当前模式下放大输入电压信号。 因此，混合型频率补偿电路可能在半导体集成电路中占据较小的面积。

公开(公告)号：US08923936B2

公开(公告)日：2014-12-30

申请号：US13194006

申请日：2011-07-29

申请人： Myung Geun Koh ,  Yi Kyu Min ,  Kyung Goo Lee ,  Byoung Il Son ,  Sung Ho Kim ,  Eun Jeong Kwon ,  Won Joon Lee

发明人： Myung Geun Koh ,  Yi Kyu Min ,  Kyung Goo Lee ,  Byoung Il Son ,  Sung Ho Kim ,  Eun Jeong Kwon ,  Won Joon Lee

IPC分类号： H04M1/00 ,  H04M1/02 ,  H04B1/38 ,  H04M1/725

CPC分类号： H04M1/0283 ,  H04B1/3888 ,  H04M1/72544

摘要： A mobile terminal and method for supporting an image display are provided. The mobile terminal includes a display unit for outputting images according to an operation of the mobile terminal, an exterior case for enclosing the display unit, a film layer arranged so as to cover the display unit and the exterior case, and including an image printed in an area thereof excluding a region corresponding to the display unit, a storage unit for pre-storing screen images that are associated with the image printed on the film layer and are to be output to the display unit according to the operation of the mobile terminal, and a control unit for controlling an operation to output the screen images stored in the storage unit to the display unit.

摘要翻译： 提供了一种用于支持图像显示的移动终端和方法。 移动终端包括用于根据移动终端的操作来输出图像的显示单元，用于封闭显示单元的外壳，以覆盖显示单元和外壳的方式布置的薄膜层，并且包括印刷在其中的图像 除了与显示单元相对应的区域之外的区域;存储单元，用于根据移动终端的操作，预先存储与打印在胶片层上的图像相关联的屏幕图像并将其输出到显示单元; 以及控制单元，用于控制将存储在存储单元中的屏幕图像输出到显示单元的操作。