公开(公告)号：US5353405A

公开(公告)日：1994-10-04

申请号：US887716

申请日：1992-05-22

申请人： Kiyotaka Doi ,  Kanji Masuyama ,  Tsutomu Takagi ,  Hitoshi Abe ,  Katsutoshi Tajima ,  Tamotsu Hirota

发明人： Kiyotaka Doi ,  Kanji Masuyama ,  Tsutomu Takagi ,  Hitoshi Abe ,  Katsutoshi Tajima ,  Tamotsu Hirota

IPC分类号： G06F12/06 ,  G06T1/60 ,  G09G5/00 ,  G09G5/391 ,  G11C7/00 ,  G11C7/10 ,  G11C11/00

CPC分类号： G11C7/00 ,  G11C7/1006

摘要： A method of controlling an image memory system wherein non-interlace image data is written into the odd field and the even field memories, and the contents written into the odd field and even field memories are respectively read out so as to be converted into interlace image data. Each line of the non-interlace image data is alternately written into the odd field and even field memories in units of a plurality of dots. If the plurality of dots include dots for the odd field and dots for the even field, the image data of the plurality of dots are simultaneously written into both the odd field memory and the even field memory. When reading the image data out from the odd field memory, the image data for the even field written into the odd field memory is invalidated. Similarly, when reading the image data out from the even field memory, the image data for the odd field written into the even field memory is invalidated. With this structure, writing/reading operation to the image memory can be performed at high speed without error even when the total number of dots on one line are not divisible by the number of dots to be written into the memories in parallel. Further, it is not necessary to change the output specification of the output device which outputs the image data, such as a computer.

摘要翻译： 一种控制图像存储系统的方法，其中将隔行扫描图像数据写入奇数场和偶数场存储器中，分别读出写入奇数场和偶数场存储器的内容，以便将其转换成隔行扫描图像 数据。 不交错图像数据的每行以多个点为单位交替地写入奇数场和偶数场存储器。 如果多个点包括奇数场的点和偶数场的点，则将多个点的图像数据同时写入奇数场存储器和偶数场存储器中。 当从奇数场存储器读出图像数据时，写入奇数场存储器的偶数场的图像数据无效。 类似地，当从偶数场存储器读出图像数据时，写入偶数场存储器的奇数场的图像数据无效。 利用这种结构，即使当一行上的点的总数不能被并入写入存储器的点的数量整除时，也可以高速无误地执行对图像存储器的写入/读取操作。 此外，不需要改变输出诸如计算机的图像数据的输出装置的输出规格。