Controller for plotting speed of raster type plotter
专利汇可以提供Controller for plotting speed of raster type plotter专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the stop of a plotter to improve the picture quality by reading preliminarily data with a graphic processor, and controlling the read speed of data from a frame buffer to a plotter input/output part in accordance with the result of this read.
CONSTITUTION: Data is taken in from a line E through a channel adapter 21 and is stored in a segment buffer 22. A graphic processor 23 checks data in the buffer 22 to obtain the number of vectors and the number of areas to be smeared in one band having a certain width and calculates the time required for data processings. Every one band of data is stored in two frame buffers 26 through a bit map controller BMC24 and a raster data converting part DDA25. Data is sent to a plotter 28 through a plotter interface part 27 in a plotting speed indicated by the graphic processor 23. Thus, data is read from and written in frame buffers 26 alternately and is plotted continuously by the plotter 28 to prevent the dirt due to blur of a developer and drop-out of data.
COPYRIGHT: (C)1984,JPO&Japio，下面是Controller for plotting speed of raster type plotter专利的具体信息内容。
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