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    • 11. 发明授权
    • Horizontal image expansion system for flat panel displays
    • 用于平板显示器的水平图像扩展系统
    • US5600347A
    • 1997-02-04
    • US177628
    • 1993-12-30
    • Stephen P. ThompsonMasaki OieAkihiro OguraKiyoshi TakemuraJoseph D. Harwood
    • Stephen P. ThompsonMasaki OieAkihiro OguraKiyoshi TakemuraJoseph D. Harwood
    • G09G3/20G09G5/00G09G5/36
    • G09G5/363G09G3/20G09G2340/0421
    • A system for horizontal expansion of low resolution display modes onto high resolution displays including flat panels at a variable scaling factor is disclosed. The system may be combined with known methods for vertical expansion to allow low resolution display modes to be expanded onto any high resolution display. Two different methods are provided, one for graphics modes and one for text modes, to attain better screen image quality. In the first method, a first pixel data sequence to be expanded is first oversampled at a multiple of the frequency thereof to produce an intermediate oversampled data sequence. The oversampled data sequence is linearly decimated by a factor of less than unity to produce a replicated second data sequence longer than the first, which is then displayed. In the second method, the intermediate oversampled data sequence is filtered to provide an interpolated oversampled data sequence, which is then decimated instead of the intermediate oversampled data sequence, to further improve the screen image quality. No particular mechanism for the graphics controller or display logic is required, eliminating complicated image processing and enabling the size, complexity and cost of the video subsystem of a computer to be reduced.
    • 公开了一种用于将低分辨率显示模式水平扩展到高分辨率显示器的系统,包括可变缩放因子的平板显示器。 该系统可以与用于垂直扩展的已知方法组合以允许将低分辨率显示模式扩展到任何高分辨率显示器。 提供了两种不同的方法,一种用于图形模式,一种用于文本模式,以获得更好的屏幕图像质量。 在第一种方法中,要扩展的第一像素数据序列首先以其频率的倍数进行过采样以产生中间过采样数据序列。 过采样数据序列以小于1的因子线性地抽取,以产生比第一数据序列长的复制的第二数据序列,然后显示它们。 在第二种方法中,对中间过采样数据序列进行滤波以提供内插过采样数据序列,然后将其抽取而不是中间过采样数据序列,以进一步提高屏幕图像质量。 不需要用于图形控制器或显示逻辑的特定机构,消除了复杂的图像处理,并且能够减少计算机的视频子系统的尺寸,复杂性和成本。
    • 16. 发明申请
    • DISPLAY MODE SWITCHING APPARATUS, METHOD AND PROGRAM PRODUCT
    • 显示模式切换装置,方法和程序产品
    • US20050266923A1
    • 2005-12-01
    • US10908600
    • 2005-05-18
    • Keita IshiiMasaki OieYasumasa Takeda
    • Keita IshiiMasaki OieYasumasa Takeda
    • G06F3/14G06F19/00G09G1/16G09G5/00G09G5/391H04N3/27H04N5/44
    • G06F3/14G09G2320/0613G09G2360/02H04N3/27
    • A display mode switching device and method automatically switches a display mode of a television set to an overscan mode or to an underscan mode depending on a content of a screen. In a case of connecting a television set to a computer, a call from an application for an API in an OS is detected by a device driver when a user starts playing a DVD or a game. Accordingly, an output mode for the television set is switched to the overscan mode. In this way, a motion video or a game is displayed on the television set in the overscan mode. Meanwhile, when the user finishes playing the DVD or the game, a call for the API to release resources is detected by the device driver, and the output mode is restored to the underscan mode. In this way, a computer screen is displayed on the television set in the underscan mode.
    • 显示模式切换装置和方法根据屏幕的内容自动地将电视机的显示模式切换到过扫描模式或欠扫描模式。 在将电视机连接到计算机的情况下,当用户开始播放DVD或游戏时,由设备驱动程序检测来自OS中的API的应用的呼叫。 因此,电视机的输出模式切换到过扫描模式。 以这种方式,以过扫描模式在电视机上显示运动视频或游戏。 同时,当用户完成播放DVD或游戏时,设备驱动程序检测到API释放资源的呼叫,并且输出模式恢复为欠扫描模式。 以这种方式,电视机屏幕以欠扫描模式显示在电视机上。
    • 20. 发明授权
    • Display of enlarged images as a sequence of different image frames which
are averaged by eye persistence
    • 将放大的图像显示为通过眼睛持续性平均的不同图像帧的序列
    • US5757355A
    • 1998-05-26
    • US837957
    • 1997-04-14
    • Akihiro OguraMasaki OieNobuyoshi Tanaka
    • Akihiro OguraMasaki OieNobuyoshi Tanaka
    • G09G3/36G06T3/40G09G3/20G09G5/36H04N5/66G06F15/62
    • G06T3/4007G09G3/20G09G2340/0407G09G2340/0435
    • Screen interpolation is done without using an expensive line buffer, etc., to enlarge and display an original image without incongruity. Rather than computing an interpolated pixel value as an average of adjacent pixel values and displaying the computed average pixel value in each frame, in accordance with this invention a pixel to be interpolated assumes one of the adjacent pixel values in each frame, but in successive frames assumes different adjacent pixel values in a mix such that the average value of the interpolated pixel over many frames becomes the desired interpolated value. Since successive frames are displayed very rapidly, to the human eye the afterglow (or visual persistence) phenomenon causes the screen to appear as if an enlarged image is being displayed at all times without incongruity (i.e., the varying values of the interpolated pixels are not noticed by the human eye).
    • 在不使用昂贵的线路缓冲器等的情况下进行屏幕插值,而不会不协调地放大和显示原始图像。 根据本发明,根据本发明,不是将内插像素值计算为相邻像素值的平均值并且显示计算出的每个帧中的平均像素值,而是要被内插的像素在每帧中呈现相邻像素值之一,但是在连续帧中 在混合中假定不同的相邻像素值,使得多个帧上的内插像素的平均值变为期望的内插值。 由于连续的帧被非常快速地显示,对于人眼来说,余辉(或视觉持久性)现象使得屏幕看起来好像放大的图像一直被显示而不一致(即,内插像素的变化值不是 注意到人眼)。