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    • 6. 发明申请
    • Liquid crystal display device and testing method thereof
    • 液晶显示装置及其测试方法
    • US20080129327A1
    • 2008-06-05
    • US11984955
    • 2007-11-26
    • Kyung Hwan Kim
    • Kyung Hwan Kim
    • G01R31/00G02F1/1343
    • G02F1/1309G09G3/006G09G3/3648
    • A liquid crystal display device and a testing method thereof is disclosed, which is suitable for improving reliability on testing process, the liquid crystal display device comprising an image display unit divided into a plurality of blocks; a plurality of test pad groups corresponding to the plurality of blocks, respectively; and a plurality of test transistor groups to supply test signals supplied to the plurality of test pad groups to a plurality of liquid crystal cells, wherein the plurality of test transistor groups are formed of a test transistor to independently switch the corresponding liquid crystal cells divided for realizing the same color.
    • 公开了一种液晶显示装置及其测试方法,其适用于提高测试过程的可靠性,该液晶显示装置包括分成多个块的图像显示单元; 分别对应于所述多个块的多个测试块组; 以及多个测试晶体管组,用于将提供给所述多个测试焊盘组的测试信号提供给多个液晶单元,其中所述多个测试晶体管组由测试晶体管形成,以独立地切换所分配的相应液晶单元 实现相同的颜色。
    • 8. 发明授权
    • Apparatus and method for detecting heartbeat using PPG
    • 使用PPG检测心跳的装置和方法
    • US06905470B2
    • 2005-06-14
    • US10413149
    • 2003-04-15
    • Mi Hee LeeSeok Won BangKyung Hwan Kim
    • Mi Hee LeeSeok Won BangKyung Hwan Kim
    • A61B5/0245A61B5/02A61B5/024A61B5/00
    • A61B5/726A61B5/02416A61B5/7207A61B5/7221
    • The present invention relates to an apparatus and method capable of detecting a heartbeat using a photoplethysmography (PPG) even under a motion of a user. A primary object of the present invention is to allow the heartbeat of the user to be effectively detected from a PPG signal even under the motion. The object of the present invention is accomplished by the following process of acquiring the PPG signal from the user through a PPG sensor unit, detecting candidate heartbeat sequences from the PPG signal after calculating an expected mean interbeat interval through a signal processing technique based on the wavelet transformation and an autocorrelation function, and extracting an optimal heartbeat sequence or mean heart rate from the candidate heartbeat sequences.
    • 本发明涉及即使在用户的运动下也能够使用光体积描记术(PPG)来检测心跳的装置和方法。 本发明的主要目的是即使在运动下也能够从PPG信号有效地检测使用者的心跳。 本发明的目的是通过以下过程,通过PPG传感器单元从用户获取PPG信号,在通过基于小波的信号处理技术计算预期平均间隔间隔之后从PPG信号中检测候选心跳序列 转换和自相关函数,并从候选心跳序列提取最佳心跳序列或平均心率。