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    • 1. 发明授权
    • Display device driving method
    • 显示设备驱动方式
    • US5677704A
    • 1997-10-14
    • US697659
    • 1996-08-28
    • Masanori KusanoMasaki OieEisuke Kanzaki
    • Masanori KusanoMasaki OieEisuke Kanzaki
    • G02F1/133G06T5/00G09G3/20G09G3/36
    • G09G3/3611G09G3/3648G09G3/2018
    • Frame rate modulation is effected in which image data, which expresses a density of one dot by 4-bit dot data, is converted into a plurality of frame data, which express a density of one dot by 3 bits, so that the plurality of the frame data are sequentially displayed on the LCD. In the above conversion, the high order 3 bits of the dot data are extracted and made into data of one dot of each frame. In a case in which the least significant bit of the first dot data is 1 and the most significant bit is 0, 1 is added to a corresponding portion of the respective frame data. In a case in which the least significant bit of the dot data is 0 and the most significant bit is 1, 1 is subtracted from a corresponding portion of the respective frame data. In accordance with the above description, the image data is converted into the frame data as shown in Table 2, and the sum (apparent densities) of the plurality of converted frame data always changes in accordance with the changes in the dot data.
    • 实现帧速率调制,其中通过4位点数据表示一个点的密度的图像数据被转换成多个帧数据,其将一个点的密度表示3比特,使得多个 帧数据依次显示在LCD上。 在上述转换中,点数据的高阶3位被提取并被制成每帧的一个点的数据。 在第一点数据的最低有效位为1且最高有效位为0的情况下,将1相加到相应帧数据的相应部分。 在点数据的最低有效位为0且最高有效位为1的情况下,从相应帧数据的相应部分中减去1。 根据上述描述,图像数据被转换成如表2所示的帧数据,并且多个转换的帧数据的总和(视在密度)总是根据点数据的变化而改变。
    • 4. 发明授权
    • Display mode switching apparatus, method and program product
    • 显示模式切换装置,方法和程序产品
    • US07675574B2
    • 2010-03-09
    • US10908600
    • 2005-05-18
    • Keita IshiiMasaki OieYasumasa Takeda
    • Keita IshiiMasaki OieYasumasa Takeda
    • H04N5/46
    • 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。
    • 7. 发明授权
    • Method and apparatus for increasing video data bandwidth by comparing
video data for redundancy
    • 通过比较用于冗余的视频数据来增加视频数据带宽的方法和装置
    • US06005591A
    • 1999-12-21
    • US617713
    • 1996-04-01
    • Akihiro OguraMasaki Oie
    • Akihiro OguraMasaki Oie
    • G09G5/00G09G5/36G09G5/395
    • G09G5/363
    • This invention relates to a video graphic control method and controller for sending to a display device graphic data from a processing device, and the object thereof is to provide a video graphic controller that increases the bandwidth available to a graphic engine or CPU without increasing power consumption or manufacturing costs, even when used with a conventional frame memory. A video graphic controller for controlling video data by storing the video data from a CPU 4 in a frame memory 18 and causing the frame memory 18 to output the data to a display device 30 uses a video data comparison means 20 to compare a piece of video data stored in the N-th address of the frame memory 18 to another piece of video data stored in the N-1-th address in order to determine whether the two pieces of data match, and if the two pieces of data match, outputs to the display device 30 the piece of video data stored in the N-1-th address instead of the piece of video data stored in the N-th address.
    • 本发明涉及一种用于向显示装置发送来自处理装置的图形数据的视频图形控制方法和控制器,其目的是提供一种视频图形控制器,其增加图形引擎或CPU可用的带宽,而不增加功耗 或制造成本,即使在与传统的帧存储器一起使用时也是如此。 用于通过将来自CPU 4的视频数据存储在帧存储器18中并使帧存储器18将数据输出到显示装置30来控制视频数据的视频图形控制器使用视频数据比较装置20来比较一条视频 将存储在帧存储器18的第N个地址中的数据存储到存储在第N-1地址中的另一条视频数据,以确定两条数据是否匹配,如果两条数据匹配,则输出 将存储在第N-1地址中的视频数据代替存储在第N个地址中的视频数据的显示装置30。
    • 8. 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。