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    • 4. 发明授权
    • Method and apparatus for printing raster page
    • 打印光栅页的方法和设备
    • US08314961B1
    • 2012-11-20
    • US12015132
    • 2008-01-16
    • David H. HarrisRandall D. Briggs
    • David H. HarrisRandall D. Briggs
    • G06F3/12G06K15/00
    • G06F3/1211G06F3/1236G06F3/1285
    • Aspects of the disclosure provide a method and an apparatus that can ensure transferring a page over a communication link having a transfer rate to satisfy a print rate by reducing a data size of the page. The method for printing a page can include allocating a transfer rate to a printer having a print rate, generating a first printable raster page at a first print quality, determining whether the first printable raster page can be transferred to the printer at the transfer rate and satisfy the print rate of the printer, generating a second printable raster page at a second print quality that is lower than the first print quality, when the first printable raster page can not be transferred to the printer at the transfer rate and satisfy the print rate of the printer, and transferring the second printable raster page to the printer.
    • 本公开的方面提供了一种方法和装置,其可以通过减少页面的数据大小来确保通过具有传送速率的通信链路传送页面以满足打印速率。 打印页面的方法可以包括向具有打印速率的打印机分配传送速率,以第一打印质量生成第一可打印光栅页面,确定第一可打印光栅页面是否可以以传送速率传送到打印机;以及 满足打印机的打印速度,当第一可打印光栅页不能以传送速率传送到打印机并且满足打印速率时,产生低于第一打印质量的第二打印质量的第二可打印光栅页面 并将第二可打印光栅页传送到打印机。
    • 7. 发明授权
    • Accelerated decomposition of small polygons into trapezoids
    • 将小多边形加速分解成梯形
    • US5133049A
    • 1992-07-21
    • US493185
    • 1990-03-14
    • Bradley W. CainRandall D. Briggs
    • Bradley W. CainRandall D. Briggs
    • G06T11/20G06T11/40G06T17/20
    • G06T17/20
    • A method and device for improving the processing performance of a transform engine by off-loading the processing of those input polygons which have no more than a predetermined number of edges and decomposing such polygons into trapezoids which can be rendered by a scan conversion system. This is accomplished in accordance with the invention by reading edge data of each input polygon into a RAM and determining the relative positions of the Y coordinates of end points of each edge so that the beginning and end of each respective edge of the polygon in the Y direction may be determined. The polygon is then broken into trapezoids by reading in the respective beginning points of respective edges of the polygon and proceeding until the end point of one of the edges is reached. At the end of one edge, another edge of the polygon is read in, and the process continues until all trapezoids in the polygon have been drawn. Since trapezoids may be much more efficiently handled by the scan conversion system, a significant performance enhancement in the polygon processing is made possible in accordance with the invention.
    • 一种用于通过对具有不超过预定数量的边缘的那些输入多边形的处理进行卸载来改进变换引擎的处理性能并将这样的多边形分解成可由扫描转换系统呈现的梯形的方法和装置。 根据本发明,通过将每个输入多边形的边缘数据读入RAM并确定每个边缘的端点的Y坐标的相对位置,使得Y中的多边形的每个相应边缘的开始和结束 方向可以确定。 然后通过读取多边形的相应边缘的相应起始点,然后将多边形分解成梯形,直到达到其中一个边缘的终点。 在一个边缘的末端,多边形的另一个边缘被读入,并且该过程继续进行,直到多边形中的所有梯形被绘制为止。 由于可以通过扫描转换系统更有效地处理梯形,所以根据本发明可以实现多边形处理中的显着性能增强。
    • 9. 发明授权
    • Halftoner block employing average values and shifts
    • 半平方块采用平均值和偏移
    • US08233196B1
    • 2012-07-31
    • US13205406
    • 2011-08-08
    • Douglas G. KeithleyRandall D. Briggs
    • Douglas G. KeithleyRandall D. Briggs
    • H04N1/405G06K15/00
    • H04N1/4052
    • Halftoning apparatus and method that may generate and employ average values and shifts are described herein. The apparatus may include an unpacker to determine shifts and average values for a plurality of input pixel values, each pair of average value and shift being associated with a corresponding pair of the input pixel values. The apparatus may further include a halftone core coupled to the unpacker to receive the shifts and the average values from the unpacker and to generate pairs of output pixel values based at least in part on the received shifts and average values, wherein the output pixel values are for generating pixels of an image.
    • 这里描述了可产生和应用平均值和偏移的半色调装置和方法。 该装置可以包括解包器以确定多个输入像素值的移位和平均值,每对平均值和移位与相应的一对输入像素值相关联。 该装置还可以包括耦合到解包器的半色调网络,以至少部分地基于接收到的移位和平均值来接收来自解包器的移位和平均值,并产生输出像素值对,其中输出像素值为 用于生成图像的像素。