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    • 62. 发明申请
    • DATA DRIVER CIRCUIT AND DELAY-LOCKED LOOP CIRCUIT
    • 数据驱动电路和延迟锁定环路
    • US20090079719A1
    • 2009-03-26
    • US12234496
    • 2008-09-19
    • Yong-Jae Lee
    • Yong-Jae Lee
    • G09G5/00H03L7/06
    • G09G3/20G09G2310/027G09G2310/08G09G2370/08H03L7/0812H03L7/0891H03L7/093
    • A data driver circuit and a delay-locked loop (DLL) circuit that can operate normally in spite of errors, etc., caused when an analog data signal is applied to a display panel are provided. The data driver circuit receives a first data signal and a first clock signal and outputs a second data signal to be transmitted to a display panel. The data driver circuit includes a data driver for sampling the first data signal in response to a second clock signal and outputting the second data signal obtained by analog-converting the first data signal, a mask signal generator for generating a mask signal indicating presence within a predetermined time period measured from a point in time at which the second data signal begins to change, and a DLL for generating the second clock signal from the first clock signal. Here, there is a delay between the first and second clock signals, the delay changes according to a phase difference between the first and second clock signals, and the change in the delay according to the phase difference is prevented by the mask signal.
    • 提供了当模拟数据信号被施加到显示面板时引起的错误等的可以正常工作的数据驱动器电路和延迟锁定环路(DLL)电路。 数据驱动电路接收第一数据信号和第一时钟信号,并输出要发送到显示面板的第二数据信号。 数据驱动器电路包括数据驱动器,用于响应于第二时钟信号对第一数据信号进行采样,并输出通过对第一数据信号进行模拟转换而获得的第二数据信号;屏蔽信号发生器,用于产生指示在 从第二数据信号开始改变的时间点测量的预定时间周期,以及用于从第一时钟信号产生第二时钟信号的DLL。 这里,在第一和第二时钟信号之间存在延迟,根据第一和第二时钟信号之间的相位差的延迟变化,并且通过掩模信号来防止根据相位差的延迟的变化。
    • 64. 发明授权
    • DVD-RAM disk reproduction apparatus for reducing errors during detection of identification data
    • 用于在识别数据检测期间减少误差的DVD-RAM盘再现装置
    • US06400658B1
    • 2002-06-04
    • US09275814
    • 1999-03-25
    • Chang-Jin YangPyong-Yong SeongSeong-Sin JooSoo-Yul JungJung-Eon SeoYong-Jae LeeJang-Hoon YooTae-Kyung Kim
    • Chang-Jin YangPyong-Yong SeongSeong-Sin JooSoo-Yul JungJung-Eon SeoYong-Jae LeeJang-Hoon YooTae-Kyung Kim
    • G11B17221
    • G11B27/24G11B7/005G11B7/00718G11B7/00745G11B19/04G11B20/18G11B27/3027G11B2220/216G11B2220/2575
    • A DVD-RAM disk reproduction apparatus for reducing an error during detection of ID data, which includes a first operational amplifier for obtaining a sum signal resulting from the addition of four picked-up signals picked up by divided-by-four photodiodes from a DVD-RAM disk having a header region and a recording region, second and third operational amplifiers for respectively obtaining two sum signals corresponding to the upper and lower regions of the header region resulting from the addition of the first and second picked-up signals and the third and fourth picked-up signals, respectively, a fourth operational amplifier for obtaining a difference signal between the two sum signals, a header region detector for detecting upper and lower header region signals corresponding to the upper header region and the lower header region based on the difference signal, and detecting a header region signal corresponding to a header region by logically summing the two detected signals, a first multiplexer for selecting one of the two sum signals obtained by the second and third operational amplifiers according to the upper header region signal, and a second multiplexer for selecting the sum signal selected by the first operational amplifier and the sum signal selected by the first multiplexer according to the header region signal, to thereby output the selected result to an equalizer. Thus, during detection of ID data in a header region, a difference signal between the picked-up four signals is not used, but a signal resulting from the addition of two signals among the picked-up signals according to the corresponding upper and lower regions of the header region is selectively used. Accordingly, ID data can be detected from a signal without deterioration, to thereby reduce an error and thus improve a detection margin.
    • 一种用于在ID数据检测期间减少误差的DVD-RAM盘再现装置,其包括第一运算放大器,用于获得由DVD的四分之一光电二极管拾取的四个拾取信号的相加而得到的和信号 -RAM盘,具有标题区域和记录区域,第二和第三运算放大器,用于分别获得对应于由所述第一和第二拾取信号的相加产生的标题区域的上部和下部区域的两个和信号,以及第三个 和第四拾取信号,分别用于获得两个和信号之间的差分信号的第四运算放大器,用于检测对应于上标题区域和下标题区域的上标题区域信号和下标头区域信号的标题区域检测器, 差分信号,并且通过对两个检测到的信号进行逻辑求和来检测与标题区域相对应的标题区域信号,第一个mul 层叠器,用于根据上标头区域信号选择由第二和第三运算放大器获得的两个和信号之一;以及第二多路复用器,用于选择由第一运算放大器选择的和信号和由第一多路复用器选择的和信号, 到标题区域信号,从而将所选择的结果输出到均衡器。 因此,在标题区域中的ID数据的检测期间,不使用拾取的四个信号之间的差分信号,而是根据相应的上部和下部区域在拾取信号之间添加两个信号而产生的信号 选择使用标题区域。 因此,可以从信号中检测ID数据而不劣化,从而减少误差,从而提高检测余量。
    • 65. 发明授权
    • Optical pickup using objective lens compatible with a plurality of optical disks
    • 使用与多个光盘兼容的物镜的光学拾取器
    • US06285646B1
    • 2001-09-04
    • US09198451
    • 1998-11-24
    • Jang-Hoon YooYong-Jae LeePyong-Yong SeongChul-Woo Lee
    • Jang-Hoon YooYong-Jae LeePyong-Yong SeongChul-Woo Lee
    • G11B700
    • G11B7/1374G11B2007/0006
    • An optical pickup device including an objective lens which is compatible with a plurality of optical disks of respectively different specifications, such as a digital versatile disk (DVD), a compact disk-recordable (CD-R) medium, a compact disk (CD) and a laser disk (LD). The optical pickup device includes a laser source to emit light, an objective lens to focus the light emitted from the laser source on respective information recording surfaces of a plurality of optical recording media as an optimal optical spot, and an optical detector to detect light reflected from the information recording surface of the optical recording medium on which the optical spot has been focused and transmitted through the objective lens. The objective lens includes a first lens area, a second lens area, and a third lens area to focus the light emitted from the laser source. The first lens area has an aspherical surface corresponding to a first optical recording medium and a second optical recording medium, the second lens area has an aspherical surface corresponding to the second optical recording medium, and the third lens area has an aspherical surface corresponding to the first optical recording medium. As a result, the optical pickup can be compatible with a plurality of the optical disks of a respectively different specification irrespective of the thickness of the disk.
    • 一种光学拾取装置,包括与分别不同规格的多个光盘兼容的物镜,诸如数字通用盘(DVD),可压缩盘可记录(CD-R)介质,光盘(CD) 和激光盘(LD)。 光拾取装置包括用于发光的激光源,将从激光源发射的光聚焦到作为最佳光点的多个光记录介质的各个信息记录表面上的物镜,以及检测反射光的光检测器 从其上已经聚焦并透过物镜的光记录介质的信息记录表面。 物镜包括第一透镜区域,第二透镜区域和用于聚焦从激光源发射的光的第三透镜区域。 第一透镜区域具有对应于第一光学记录介质和第二光学记录介质的非球面,第二透镜区域具有对应于第二光学记录介质的非球面,并且第三透镜区域具有对应于第二光学记录介质的非球面 第一光记录介质。 结果,光拾取器可以与分别不同规格的多个光盘兼容,而与盘的厚度无关。
    • 70. 发明授权
    • Realtime user guidance for freehand drawing
    • 实时用户指导手绘
    • US08827710B2
    • 2014-09-09
    • US13110923
    • 2011-05-19
    • Charles Lawrence Zitnick, IIIYong Jae LeeMichael Cohen
    • Charles Lawrence Zitnick, IIIYong Jae LeeMichael Cohen
    • G09B11/10G09B11/00
    • G09B11/10G09B11/00
    • Architecture that guides the freeform drawing of objects by a user to enable the user to produce improved drawings without significant training. As the user draws, the architecture dynamically updates a relevant shadow image proximate (e.g., underlying) the user's strokes. The strokes overlay an evolving shadow image, which shadow image is suggestive of object contours that guide the user during the drawing process. Relevant edge images selected from a large database are automatically blended to construct the shadow image. As the user draws, the strokes are dynamically analyzed using an encoding of overlapping windows for fast matching with the database of images. A top ranked set of matching database edge images are aligned to the drawing, a set of spatially varying weights blend the edge images into the shadow image, and a scoring technique is employed to select the optimum shadow image for display.
    • 指导用户自由绘制对象的架构,以使用户能够在不进行重大培训的情况下生成改进的图纸。 当用户绘制时,体系结构动态地更新用户笔画的邻近(例如,底层)的相关阴影图像。 笔画覆盖了不断变化的阴影图像,阴影图像暗示着在绘图过程中引导用户的对象轮廓。 从大数据库中选择的相关边缘图像将自动混合以构建阴影图像。 当用户绘制时,使用重叠窗口的编码动态地分析笔画,以便与图像数据库快速匹配。 匹配数据库边缘图像的顶级排列集合与图形对齐,一组空间变化的权重将边缘图像混合到阴影图像中,并且使用评分技术来选择用于显示的最佳阴影图像。