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    • 15. 发明授权
    • Light emitting diode driving circuit having voltage detection
    • 具有电压检测的发光二极管驱动电路
    • US08144111B2
    • 2012-03-27
    • US12251176
    • 2008-10-14
    • Jin Hwan KimNam Kyu LeeDoo Ho YooYoung Jong Yoo
    • Jin Hwan KimNam Kyu LeeDoo Ho YooYoung Jong Yoo
    • G09G3/36
    • H05B33/0815G09G3/342G09G2320/064G09G2330/04H05B33/0827Y02B20/347
    • There is provided a driving circuit of a light emitting device. The driving circuit of a light emitting may include: a DC/DC converter converting an input DC voltage into an output DC voltage; a light emitting device block including a plurality of LED groups connected to an output terminal of the DC/DC converter; a current source circuit unit including a plurality of current sources; a voltage detection unit detecting the output DC voltage of the DC/DC converter; a minimum voltage detection unit detecting a minimum voltage among a plurality of voltages between the plurality of LED groups and the plurality of current sources, respectively; and a single comparator including a first non-inverting input terminal receiving the voltage detected by the voltage detection unit, a second non-inverting input terminal receiving the minimum voltage detected by the minimum voltage detection unit, and an inverting input terminal receiving a predetermined reference voltage.
    • 提供了一种发光装置的驱动电路。 发光的驱动电路可以包括:将输入DC电压转换为输出DC电压的DC / DC转换器; 发光器件块,包括连接到DC / DC转换器的输出端子的多个LED组; 包括多个电流源的电流源电路单元; 电压检测单元,检测DC / DC转换器的输出直流电压; 最小电压检测单元,分别检测所述多个LED组和所述多个电流源之间的多个电压中的最小电压; 以及单个比较器,包括接收由电压检测单元检测到的电压的第一非反相输入端子,接收由最小电压检测单元检测到的最小电压的第二非反相输入端子和接收预定参考值的反相输入端子 电压。
    • 16. 发明授权
    • Apparatus and method for recognizing code
    • 用于识别代码的装置和方法
    • US06981644B2
    • 2006-01-03
    • US10492305
    • 2002-05-13
    • Cheol Ho CheongNam Kyu LeeTack Don Han
    • Cheol Ho CheongNam Kyu LeeTack Don Han
    • G06K7/10
    • G06T1/0021
    • An apparatus and method for recognizing a code from a code image that is expressed physically or electronically and extracting data represented in the code image is provided. The method includes the steps of receiving a raw image in which a code image is contained, detecting a background image included in the raw image, extracting a code image region in which a background image is excluded, recognizing the shape and type of the code image and the color or shade represented in each of cells, converting the color or shade recognized from each of the cells into a corresponding character, number, or symbol and generating code data. The code image in which predetermined data are represented as colors or shades are received, and original colors or shades can be precisely discriminated regardless of an environment in which the code image is recognized.
    • 提供一种用于从物理或电子表示的代码图像中识别代码并提取代码图像中表示的数据的装置和方法。 该方法包括以下步骤:接收包含代码图像的原始图像,检测原始图像中包括的背景图像,提取其中排除背景图像的代码图像区域,识别代码图像的形状和类型 以及在每个单元格中表示的颜色或阴影,将从每个单元识别的颜色或阴影转换为相应的字符,数字或符号并生成代码数据。 接收预定数据被表示为颜色或阴影的代码图像,并且无论识别代码图像的环境如何,都可以精确地识别原始颜色或阴影。
    • 19. 发明授权
    • Energy recovery apparatus and method for plasma display panel
    • 等离子显示面板的能量回收装置及方法
    • US07605808B2
    • 2009-10-20
    • US10942052
    • 2004-09-16
    • Nam Kyu LeeBong Gyun KimBong Hwan KwonJang Hwan Cho
    • Nam Kyu LeeBong Gyun KimBong Hwan KwonJang Hwan Cho
    • G09G5/00
    • G09G3/2965
    • Disclosed are an energy recovery apparatus and method for a plasma display panel. The energy recovery apparatus includes a sustain voltage source for supplying a sustain voltage, a panel capacitor formed equivalently at a discharge cell, a first charging circuit for forming a first charging path when one side of the panel capacitor is charged, a second charging circuit for forming a second charging path when the other side of the panel capacitor is charged, a first power circuit for supplying the sustain voltage to the panel capacitor and forming the first charging path, and a second power circuit for supplying a ground voltage generated from a ground voltage source to the panel capacitor and forming the second charging path. The energy recovery apparatus and method according to the present invention can decrease components in number and reduce power consumption and manufacturing cost by charging the other side of the panel capacitor using a charging voltage of one side of the panel capacitor.
    • 公开了一种用于等离子体显示面板的能量回收装置和方法。 能量回收装置包括用于提供维持电压的维持电压源,在放电单元等效地形成的面板电容器,用于在面板电容器的一侧被充电时形成第一充电路径的第一充电电路;第二充电电路, 当面板电容器的另一侧被充电时,形成第二充电路径,用于向面板电容器提供维持电压并形成第一充电路径的第一电源电路和用于提供从地面产生的接地电压的第二电源电路 电压源到面板电容器并形成第二充电路径。 根据本发明的能量回收装置和方法可以通过面板电容器的一侧的充电电压对面板电容器的另一侧进行充电来减少数量的部件并降低功耗和制造成本。