Video display apparatus for displaying a plurality of video signals
having different scanning frequencies and a multi-screen display system
using the video display apparatus
    4.
    发明授权
    Video display apparatus for displaying a plurality of video signals having different scanning frequencies and a multi-screen display system using the video display apparatus 失效
    用于显示具有不同扫描频率的多个视频信号的视频显示装置和使用该视频显示装置的多屏显示系统

    公开(公告)号:US5557342A

    公开(公告)日:1996-09-17

    申请号:US425698

    申请日:1995-04-19

    IPC分类号: H04N5/45 H04N5/46 H04N5/262

    CPC分类号: H04N5/45 H04N5/46

    摘要: A video display system that includes a housing has arranged thereon a plurality of video input terminals for receiving a plurality of video signals having different scanning frequencies. An expansion/compression processing circuit replaceably mounted on the housing receives and expands/compresses the plurality of video signals and produces at least one video signal expanded/compressed in synchronism with a sync signal selected by a sync switching circuit. At least one of the video signals is synthesized with another video signal, and the synthesized video signal is produced by a video signal synthesis circuit. A video signal from the video signal synthesis circuit is used to generate a video display signal in synchronism with the sync signal. This video display signal is applied to a display. At least one such video display system, an AV controller, a central control console and a lecture table are combined to realize a screen display system.

    摘要翻译: 包括壳体的视频显示系统在其上布置有用于接收具有不同扫描频率的多个视频信号的多个视频输入端子。 可替换地安装在壳体上的扩展/压缩处理电路接收并扩展/压缩多个视频信号,并且产生与由同步切换电路选择的同步信号同步地扩展/压缩的至少一个视频信号。 视频信号中的至少一个与另一个视频信号合成,合成的视频信号由视频信号合成电路产生。 来自视频信号合成电路的视频信号用于与同步信号同步产生视频显示信号。 该视频显示信号被应用于显示器。 组合至少一个这样的视频显示系统,AV控制器,中央控制台和讲座,以实现屏幕显示系统。

    Scanning conversion display apparatus
    5.
    发明授权
    Scanning conversion display apparatus 失效
    扫描转换显示装置

    公开(公告)号:US5301031A

    公开(公告)日:1994-04-05

    申请号:US938514

    申请日:1992-09-02

    摘要: A display apparatus using a matrix display panel, such as a liquid crystal panel, for converting the number of scanning lines to be displayed to a number that can be accommodated on a panel having a smaller number of scanning lines. The apparatus includes a control circuit which produces control signals in synchronism with the input video signal, horizontal and vertical scanning circuits each including a shift register operated by the control circuit, and a display panel which is formed of a matrix arrangement of pixels that are driven selectively by the scanning circuits. The apparatus further includes a circuit which halts the operation of the vertical shift register at a certain interval within the effective scanning period of the vertical scanning circuit so as to extract vertical shift clocks, thereby removing the vertical shift clocks within the effective display period of the video signal, thereby extracting periodically extracting scanning lines.

    摘要翻译: 一种使用诸如液晶面板的矩阵显示面板的显示装置,用于将要显示的扫描线的数量转换成可容纳在具有较少数量的扫描线的面板上的数量。 该装置包括控制电路,其产生与输入视频信号同步的控制信号,水平和垂直扫描电路各自包括由控制电路操作的移位寄存器,以及显示面板,其由驱动的像素的矩阵排列形成 选择性地由扫描电路。 该装置还包括在垂直扫描电路的有效扫描周期内以一定间隔停止垂直移位寄存器的操作的电路,以提取垂直移位时钟,由此在垂直扫描电路的有效显示周期内去除垂直移位时钟 视频信号,从而周期性地提取扫描线。

    Scanning speed modulating apparatus for television receiver
    7.
    发明授权
    Scanning speed modulating apparatus for television receiver 失效
    电视接收机扫描速度调制装置

    公开(公告)号:US4641195A

    公开(公告)日:1987-02-03

    申请号:US724832

    申请日:1985-04-19

    IPC分类号: H04N3/22 H04N3/32 H04N5/68

    CPC分类号: H04N3/32

    摘要: A scanning speed modulating apparatus for a television receiver. A differentiated signal derived by differentiating a video signal is supplied to a horizontal deflecting coil, so that a current having a waveform corresponding to that of the differentiated signal and superposed on a horizontal deflecting signal flows through the horizontal deflecting coil.

    摘要翻译: 一种用于电视接收机的扫描速度调制装置。 通过对视频信号进行微分而导出的微分信号被提供给水平偏转线圈,使得具有对应于微分信号的波形并叠加在水平偏转信号上的波形的电流流过水平偏转线圈。

    Display apparatus
    8.
    发明授权
    Display apparatus 失效
    显示装置

    公开(公告)号:US06466272B1

    公开(公告)日:2002-10-15

    申请号:US09109179

    申请日:1998-07-02

    IPC分类号: H04N701

    摘要: A display apparatus capable of receiving and displaying video signals which differ in scanning frequencies or resolutions. The display apparatus includes an input section for receiving at least one video signal and a conversion unit for converting at least one of the frequency and resolution of the at least one received video signal so as to be within predetermined higher ranges thereof. A display unit enables display of the converted received at least one video signal.

    摘要翻译: 一种能够接收和显示扫描频率或分辨率不同的视频信号的显示装置。 显示装置包括用于接收至少一个视频信号的输入部分和用于将至少一个接收的视频信号的频率和分辨率中的至少一个转换成其预定的较高范围的转换单元。 显示单元能够显示经转换的接收到的至少一个视频信号。

    Display device and its displaying method
    10.
    发明授权
    Display device and its displaying method 失效
    显示设备及其显示方式

    公开(公告)号:US5287095A

    公开(公告)日:1994-02-15

    申请号:US803909

    申请日:1991-12-09

    IPC分类号: G09G3/20 G09G3/36

    摘要: A display device suitable for a high speed operation liquid crystal display device includes a matrix circuit having a plurality of signal lines, scanning lines disposed so as to intersect the signal lines and pixels provided at the positions corresponding to the intersections of the signal lines and the scanning lines; and a switching circuit for incorporating picture signals provided in correspondance to the signal lines, wherein the adjacent switching circuits are both turned on simultaneously.

    摘要翻译: 适用于高速操作液晶显示装置的显示装置包括具有多个信号线的矩阵电路,设置成与信号线相交的扫描线和设置在对应于信号线和 扫描线 以及用于并入与信号线相对应的图像信号的开关电路,其中相邻的开关电路同时导通。