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    • 2. 发明授权
    • Color television window expansion and overscan correction for
high-resolution raster graphics displays
    • 彩色电视窗口扩展和海洋校正高分辨率图形显示
    • US5119082A
    • 1992-06-02
    • US415012
    • 1989-09-29
    • Leon LumelskySung Min ChoiAlan W. Peevers
    • Leon LumelskySung Min ChoiAlan W. Peevers
    • H04N5/66G06T3/40G09G5/00G09G5/02G09G5/14G09G5/36H04N1/393H04N5/262H04N7/01
    • G06T3/4023H04N5/2628
    • A video pixel presentation rate expansion circuit is provided for use with a high-resolution display system. The overall display system includes a high-resolution monitor, a computer for providing control signals, including a high-resolution frame buffer for storing computer graphics and TV video images and reading out said video data at a rate controlled by said control signals and providing said data with a high-resolution monitor for display. The expansion circuit of the present invention comprises means responsive to an expansion pattern generated by the computer for changing the time base of the video pixel data read out of said frame buffer. Circuit includes means responsive to said expansion pattern for selectively repeating predetermined scan lines of said video display and for selectively repeating certain pixel along a given scan line to match the time base of the video data read out of said frame buffer to the time base of said high-resolution monitor. According to a preferred embodiment of the invention the expansion circuit functions to modify the control signals which controls the read-out of the frame buffer in a predetermined fashion without any additional video buffer storage means.
    • 提供了与高分辨率显示系统一起使用的视频像素呈现速率扩展电路。 整体显示系统包括高分辨率监视器,用于提供控制信号的计算机,包括用于存储计算机图形和电视视频图像的高分辨率帧缓冲器,并以由所述控制信号控制的速率读出所述视频数据,并提供所述 数据与高分辨率显示器进行显示。 本发明的扩展电路包括响应于由计算机生成的扩展模式的装置,用于改变从所述帧缓冲器读出的视频像素数据的时基。 电路包括响应于所述扩展模式的装置,用于选择性地重复所述视频显示器的预定扫描线,并且用于选择性地重复沿着给定扫描线的某些像素,以将从所述帧缓冲器读出的视频数据的时基与所述帧缓冲器读出的时基相匹配, 高分辨率显示器。 根据本发明的优选实施例,扩展电路用于修改以预定方式控制帧缓冲器的读出的控制信号,而无需任何附加的视频缓冲存储装置。
    • 3. 发明授权
    • Semiconductor light emitting device having one or more recesses on a layer
    • 在一层上具有一个或多个凹槽的半导体发光器件
    • US08648355B2
    • 2014-02-11
    • US13570993
    • 2012-08-09
    • Sung Min Choi
    • Sung Min Choi
    • H01L33/00
    • H01L33/20H01L33/007H01L33/025
    • Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a substrate; a light emitting structure comprising a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer on the substrate; an electrode layer on the second conductive semiconductor layer; and an electrode on the electrode layer, wherein the substrate comprises a plurality of convex portions, wherein the electrode layer comprises a plurality of holes corresponding to a region of at least one of the plurality of convex portions of the substrate, wherein an insulating material is disposed in the plurality of holes on the light emitting structure.
    • 公开了一种半导体发光器件。 半导体发光器件包括衬底; 发光结构,包括在所述基板上的第一导电半导体层,有源层和第二导电半导体层; 第二导电半导体层上的电极层; 以及电极层上的电极,其中所述基板包括多个凸部,其中所述电极层包括与所述基板的所述多个凸部中的至少一个的区域对应的多个孔,其中绝缘材料为 设置在发光结构上的多个孔中。
    • 5. 发明申请
    • Single wall carbon nanotubes with surfactant-coated surface and process for preparing the same
    • 具有表面活性剂涂覆表面的单壁碳纳米管及其制备方法
    • US20080176071A1
    • 2008-07-24
    • US11979469
    • 2007-11-02
    • Sung-Min ChoiChangwoo DoeTae-Hwan Kim
    • Sung-Min ChoiChangwoo DoeTae-Hwan Kim
    • B06B1/20B32B27/06
    • B82Y30/00B82Y40/00C01B32/174C01B2202/02C01B2202/28Y10T428/292
    • Disclosed are a process for preparing single wall carbon nanotubes with surfactant-coated surface which comprises coating a surface of the carbon nanotubes with a surfactant by adding water to a mixture of the carbon nanotubes and the surfactant, ultrasonically treating the mixture, treating the ultrasonically treated mixture with a initiator, and applying a surfactant to the surface of the resultant carbon nanotubes and, in addition, the carbon nanotubes with surfactant-coated surface prepared by the above process. The formed carbon nanotubes of the present invention can maintain a stable dispersion condition regardless of change of an external environment and be stably dispersed in water even when putting the carbon nanotubes into the water after completely drying the same, so that the carbon nanotubes can be widely used in developing and manufacturing various products.
    • 公开了一种制备具有表面活性剂涂覆表面的单壁碳纳米管的方法,该方法包括通过向碳纳米管和表面活性剂的混合物中加入水,用表面活性剂涂覆碳纳米管的表面,超声处理混合物,处理超声波处理 与引发剂的混合物,并将表面活性剂施加到所得碳纳米管的表面,此外,通过上述方法制备具有表面活性剂涂布表面的碳纳米管。 本发明形成的碳纳米管可以保持稳定的分散状态,而不管外部环境的变化如何,即使将碳纳米管完全干燥后将碳纳米管放入水中也能稳定地分散在水中,使得碳纳米管能够广泛 用于开发和制造各种产品。
    • 6. 发明授权
    • High definition multimedia display
    • 高分辨率多媒体显示
    • US6088045A
    • 2000-07-11
    • US733950
    • 1991-07-22
    • Leon LumelskySung Min ChoiAlan Wesley PeeversJohn Louis Pittas
    • Leon LumelskySung Min ChoiAlan Wesley PeeversJohn Louis Pittas
    • G09G5/00G06F12/00G09G5/02G09G5/14G09G5/36G09G5/39G09G5/391G09G5/395H04N7/01
    • G09G5/14G09G5/026G09G5/39G09G2340/125G09G5/36
    • An image display system (10) includes an image buffer (20,22) having a plurality of addressable locations for storing image pixel data. The system further includes circuitry (24,34,36) coupled to an output of the image buffer for converting image pixel data read therefrom to electrical signals for driving an image display (18). The circuitry is responsive to signals generated by an image display controller (16) for generating one of a plurality of different timing formats for the electrical signals for driving an image display having a specified display resolution. The apparatus further includes circuitry (40,42) for configuring the image buffer in accordance with the specified display resolution. The image buffer is configurable, by example, as two, 2048 location by 1024 location by 24-bit buffers and one 2048 location by 1024 location by 16-bit buffer; or as two, 2048 location by 2048 location by 24-bit buffers and one 2048 location by 2048 location by 16-bit buffer. Each of the 24-bit buffers store R,G,B pixel data and the 16-bit buffers each store a color index (CI) value and an associated window identifier (WID) value. Circuitry at the output of the image buffer decodes CI and WID values into R,G,B pixel data and a Key value specifying pixel mixing.
    • 图像显示系统(10)包括具有用于存储图像像素数据的多个可寻址位置的图像缓冲器(20,22)。 该系统还包括耦合到图像缓冲器的输出的电路(24,34,36),用于将从其读取的图像像素数据转换为用于驱动图像显示器(18)的电信号。 电路响应于由图像显示控制器(16)产生的信号,用于产生用于驱动具有指定显示分辨率的图像显示器的电信号的多种不同定时格式之一。 该装置还包括用于根据指定的显示分辨率配置图像缓冲器的电路(40,42)。 图像缓冲区可以通过例如两个2048位置由24位缓冲区和一个2048位置由1024位置由16位缓冲区进行配置。 或由2048位置由2048位置由24位缓冲区和2048位置到2048位置由16位缓冲区。 每个24位缓冲器存储R,G,B像素数据,并且16位缓冲器每个存储颜色索引(CI)值和相关联的窗口标识符(WID)值。 图像缓冲器的输出电路将CI和WID值解码为R,G,B像素数据,以及指定像素混合的Key值。