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1. 发明授权

US5910807A Method of drawing figure such as polygon and display control device 失效
标题翻译：图形绘图方法，如多边形和显示控制装置
公开(公告)号：US5910807A
公开(公告)日：1999-06-08
申请号：US804506
申请日：1997-02-24
申请人： Naoki Ueda , Tadayuki Noguchi , Shuji Sakai , Kuniaki Tanaka , Yoshiaki Kittaka
发明人： Naoki Ueda , Tadayuki Noguchi , Shuji Sakai , Kuniaki Tanaka , Yoshiaki Kittaka
IPC分类号： G06F3/153 , G06T11/40 , G09G5/36
CPC分类号： G06T11/40
摘要： A display control device comprises a work memory including at least a plurality of memory bits each for storing one-bit data indicating whether or not each pixel is inside a figure of plane geometry having a contour such as a polygon, a control unit for scanning each of a plurality of raster scan lines and searching for at least one pixel which can be assumed to form a line segment which partially constructs the contour of the figure so as to generate a control signal for controlling bit inversion to determine the inside of the figure, a selecting unit for receiving the one-bit data of each pixel which is sequentially delivered by the work memory and inverting the one-bit data so as to select one from among the original one-bit data and the inverted one-bit data according to the control signal from the control unit, and output the selected data; a unit for writing the selected data from the selecting unit into a corresponding one of the plural memory bits of the work memory.
摘要翻译：显示控制装置包括工作存储器，其包括至少多个存储器位，每个存储器位用于存储指示每个像素是否在具有诸如多边形的轮廓的平面几何图形内的一位数据;用于扫描每个像素的控制单元的多个光栅扫描线，并且搜索至少一个可以被假设形成部分地构成图的轮廓的线段的像素，以便产生用于控制位反转的控制信号以确定图的内部，选择单元，用于接收由工作存储器顺序地传送的每个像素的一位数据，并反转一位数据，从而根据原始的一位数据和反相的一位数据中的一个根据来自控制单元的控制信号，并输出所选择的数据; 用于将所选择的数据从选择单元写入到工作存储器的多个存储位中的对应的一个中的单元。

2. 发明授权

US5754161A Graphic display scrolling apparatus 失效
标题翻译：图形显示滚动装置
公开(公告)号：US5754161A
公开(公告)日：1998-05-19
申请号：US502728
申请日：1995-07-14
申请人： Tadayuki Noguchi , Akihiko Ishimoto , Koji Hirano
发明人： Tadayuki Noguchi , Akihiko Ishimoto , Koji Hirano
IPC分类号： G06F3/153 , G06F3/048 , G09G5/34 , G09G5/36 , G09G5/39
CPC分类号： G09G5/346
摘要： A graphic scrolling apparatus comprising a unit for storing image data; an image display device having a screen for displaying a first predetermined-sized area of the image data stored in the image data storing unit; a buffer memory for temporarily storing a second predetermined-sized area of the image data stored in the image data storing means, the second predetermined-sized area being larger than the first predetermined-sized area; a first depicting unit for retrieving, from the image storing means, at least image data corresponding to a third area of the first predetermined-sized area, which protrudes from the second predetermined-sized area and for depicting the at least image data corresponding to the third area on a fourth area of the second predetermined sized area, which is in the outside of the first predetermined-sized area as the first predetermined-sized area scrolls on the second predetermined-sized area; and an image display controlling unit for controlling the apparatus such that an image is displayed on the screen of the image display device by changing a reading address for the buffer memory to an address of the fourth area and by reading out data of the first predetermined-sized area based on the changed address at the boundary of the first predetermined-sized area when the first predetermined-sized area protrudes from the second predetermined-sized area as the first predetermined-sized area scrolls on the second predetermined-sized area.
摘要翻译：一种图形滚动装置，包括用于存储图像数据的单元; 图像显示装置，具有用于显示存储在图像数据存储单元中的图像数据的第一预定尺寸区域的屏幕; 缓冲存储器，用于临时存储存储在图像数据存储装置中的图像数据的第二预定大小区域，第二预定大小区域大于第一预定大小区域; 第一描绘单元，用于从图像存储装置检索与第二预定大小区域相对应的至少第一预定大小区域的第三区域的图像数据，并且描绘至少与图像数据对应的图像数据第二预定大小区域的第四区域上的第三区域，当第一预定大小区域在第二预定大小区域上滚动时，位于第一预定大小区域的外侧; 以及图像显示控制单元，用于控制所述设备，使得通过将所述缓冲存储器的读取地址改变为所述第四区域的地址，并且通过读出所述第一预定位置的数据来在所述图像显示设备的屏幕上显示图像，当所述第一预定大小区域在所述第二预定大小区域上滚动时，所述第一预定大小区域从所述第二预定大小区域突出时，基于所述第一预定大小区域边界处改变的地址。

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