Method and apparatus for expanding and centering VGA text and graphics
    1.
    发明授权
    Method and apparatus for expanding and centering VGA text and graphics 失效
    扩展和定中VGA文本和图形的方法和装置

    公开(公告)号:US5521614A

    公开(公告)日:1996-05-28

    申请号:US235827

    申请日:1994-04-29

    摘要: A method and apparatus for expanding a video graphics adapter (VGA) text character to fully fill the screen of a flat panel display. The present invention stores binary information representing a horizontal row of character text. A prescribed bit in the binary information may be set to determine whether to duplicate pixels associated with the binary information in either a horizontal or vertical direction. A circuit is provided to ensure that foreground and background characteristics of the graphics character text being expanded are consistent with the sent prescribed bit in the binary information.

    摘要翻译: 一种用于扩展视频图形适配器(VGA)文本字符以完全填充平板显示器的屏幕的方法和装置。 本发明存储表示字符文本的水平行的二进制信息。 可以设置二进制信息中的规定位以确定是在水平还是垂直方向上复制与二进制信息相关联的像素。 提供电路以确保正在扩展的图形字符文本的前景和背景特征与二进制信息中发送的规定位一致。

    Apparatus and method for horizontally and vertically positioning a VGA
display image on the screen of a flat panel display
    4.
    发明授权
    Apparatus and method for horizontally and vertically positioning a VGA display image on the screen of a flat panel display 失效
    将VGA显示图像水平和垂直地定位在平板显示器的屏幕上的装置和方法

    公开(公告)号:US5682170A

    公开(公告)日:1997-10-28

    申请号:US509651

    申请日:1995-07-31

    摘要: A method and apparatus for horizontally and vertically positioning a video graphics adapter (VGA) display image on the screen of a flat panel display (FPD) is provided with a first counter for setting a horizontal FPD disable period associated with the FPD. A second counter sets the horizontal FPD enable period of the FPD. This horizontal FPD enable period is greater than a composite horizontal pixel time of a VGA image to be displayed. A first circuit controls the start time of a subsequent horizontal FPD enable period. This start time is based on the horizontal FPD disable period. A second circuit controls the end time of the subsequent horizontal FPD enable period. This end time is based on the horizontal FPD enable period. The VGA display image is begun based on the start time of the subsequent horizontal FPD enable period to locate the VGA display image at a desired horizontal position of the FPD screen. The vertical positioning of the image is performed by similar counters and circuits.

    摘要翻译: 在平板显示器(FPD)的屏幕上水平和垂直地定位视频图形适配器(VGA)显示图像的方法和装置设置有用于设置与FPD相关联的水平FPD禁用时段的第一计数器。 第二个计数器设置FPD的水平FPD使能周期。 该水平FPD使能周期大于要显示的VGA图像的复合水平像素时间。 第一电路控制随后的水平FPD使能期间的开始时间。 该开始时间基于水平FPD禁用期。 第二电路控制随后的水平FPD使能期间的结束时间。 该结束时间是基于水平FPD使能周期。 基于随后的水平FPD使能周期的开始时间开始VGA显示图像,以将VGA显示图像定位在FPD屏幕的期望水平位置。 图像的垂直定位由类似的计数器和电路执行。