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    IMAGE FORMING SYSTEM, CONTROLLER AND RASTERIZATION ACCELERATOR
    1.
    发明公开
    IMAGE FORMING SYSTEM, CONTROLLER AND RASTERIZATION ACCELERATOR 有权
    BILDGEBUNGSSYSTEM，STEUERGERÄTDAFÜRUND RASTERUNGSBESCHLEUNIGER

    公开(公告)号：EP2547087A1

    公开(公告)日：2013-01-16

    申请号：EP11753108.7

    申请日：2011-02-03

    申请人： Konica Minolta Holdings, Inc.

    发明人： FUJISAWA Shinya ,  KOYANAGI Hitoshi ,  TAKAGI Kiyoshi ,  KITADA Takenori

    IPC分类号： H04N1/413 ,  B41J5/30 ,  B41J29/38 ,  G03G21/00 ,  G03G21/14 ,  G06F3/12 ,  H04N1/00

    CPC分类号： G03G21/14 ,  G03G15/502 ,  G06F3/1297 ,  G06K15/1849 ,  G06K15/1865 ,  H04N1/00127 ,  H04N1/413 ,  H04N2201/0094

    摘要： Disclosed is an image forming system (1) provided with: a controller (2) which comprises a list creation means (21) for creating a display list, a decompression means (23) for decompressing image data that has been compressed, a drawing means (22) for performing drawing from image data, and a print data creation means (25) for creating print data; and a rasterization accelerator (3) which comprises a second drawing means (31) for performing drawing in accordance with the display list, and compression means (32, 33, 34) for compressing image data drawn by the second drawing means, wherein the rasterization accelerator is provided with a determination means (35) for determining from display list information whether or not image data is compressed and for determining the compression method employed when compression is performed by the compression means, the determination means (35) being provided for the purpose of allowing optimal compression in accordance with the type and volume of image data and for the purpose of compressing image data to the greatest extent possible in order to reduce transmission time to a controller.

    摘要翻译： 公开了一种图像形成系统（1），其具有：控制器（2），其包括用于创建显示列表的列表创建装置（21），用于解压缩已压缩的图像数据的解压缩装置（23），绘制装置 （22），用于从图像数据执行绘制;以及打印数据创建装置（25），用于创建打印数据; 以及光栅化加速器（3），其包括用于根据所述显示列表进行绘图的第二绘制装置（31）和用于压缩由所述第二绘图装置绘制的图像数据的压缩装置（32,33,34），其中所述光栅化 加速器设置有用于从显示列表信息确定图像数据是否被压缩并且用于确定在由压缩装置执行压缩时采用的压缩方法的确定装置（35），为此目的提供确定装置（35） 允许根据图像数据的类型和体积进行最佳压缩，并且为了最大程度地压缩图像数据，以减少对控制器的传输时间。

    Printing system and data processing method therefor
    3.
    发明公开
    Printing system and data processing method therefor 失效
    打印系统及其数据处理方法

    公开(公告)号：EP0801357A3

    公开(公告)日：2002-09-04

    申请号：EP97105997.7

    申请日：1997-04-11

    申请人： CANON KABUSHIKI KAISHA

    发明人： Ueda, Shigeru

    IPC分类号： G06K15/00 ,  G06F3/12

    CPC分类号： G06K15/00 ,  G06F3/12 ,  G06K15/1814 ,  G06K15/1865 ,  G06K2215/0011 ,  G06K2215/0014

    摘要： Print data including text or graphics data is transferred from a host computer to a printer. The printer develops the received data on band basis. When data processing to be performed by the printer is expected to fail due to shortage of the memory area size, the host computer cancels the data which has already been sent to the printer, and develops the text or graphics data to form image data. The image data thus formed is sent to the printer. Image data is transferred in a hierarchical manner. Disclosed also is a method which makes it possible to eliminate as much as possible any data processing failure in the printer attributable to shortage of memory capacity.

    Output method and apparatus
    5.
    发明公开
    Output method and apparatus 失效
    输出方法和设备

    公开(公告)号：EP0510923A3

    公开(公告)日：1993-04-28

    申请号：EP92303574.5

    申请日：1992-04-22

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kashiwazaki, Masami, c/o Canon Kabushiki Kaisha

    IPC分类号： G06K15/02 ,  G06K15/00

    CPC分类号： G06K15/00 ,  G06K15/1865 ,  G06K2215/0062 ,  G06K2215/0071

    摘要： A method and apparatus for outputting an image in which the image is divided into plural parts which are serially processed. Each part in turn is compressed in accordance with a first compression method, the same part is selectably recompressed by a second compression method in accordance with the compression results, the method by which the part was compressed is stored, the compressed part is expanded into a memory area that is common for all parts of the image in accordance with the stored compression method, and the expanded image is output.

    摘要翻译： 一种用于输出图像的方法和装置，其中图像被分成连续处理的多个部分。 每个部分依次按照第一压缩方法压缩，根据压缩结果通过第二压缩方法选择性地再压缩相同部分，存储压缩部分的方法，压缩部分扩展成 根据存储的压缩方法对图像的所有部分共同的存储区域，并且输出展开的图像。

    Pipeline structures for full-colour computer graphics
    6.
    发明公开
    Pipeline structures for full-colour computer graphics 失效
    PipelinestrukturfürvollfarbfähigenRechnergraphik。

    公开(公告)号：EP0473340A2

    公开(公告)日：1992-03-04

    申请号：EP91307563.6

    申请日：1991-08-15

    申请人： CANON KABUSHIKI KAISHA ,  CANON INFORMATION SYSTEMS RESEARCH AUSTRALIA PTY LTD.

    发明人： Silverbrook, Kia

    IPC分类号： G06F15/72 ,  G06F15/64

    CPC分类号： G06T9/007 ,  G06K15/1851 ,  G06K15/1863 ,  G06K15/1865 ,  G06T11/40 ,  H04N1/387 ,  H04N1/646

    摘要： A full-colour desk top publishing (DTP) system (100) is disclosed that includes a general purpose computer system (200), a full-colour high resolution graphics system (300) and peripheral devices such as a colour laser copier (150) including a scanner (152) and a printer (154), a workscreen display (140) and user inputs such as a digitiser (110) and a keyboard (112). The DTP system (100) can generate graphics images in bands across a page image with the images being stored in DRAM (420) as compressed images using ADCT compession and the JPEG standard. The DTP system (100) includes various pipeline structures (Figs. 3 - 6) which are used in image creation and realisation.

    摘要翻译： 公开了一种全彩桌面出版（DTP）系统（100），其包括通用计算机系统（200），全色高分辨率图形系统（300）和诸如彩色激光复印机（150）的外围设备， 包括扫描器（152）和打印机（154），工作屏显示器（140）和诸如数字转换器（110）和键盘（112）的用户输入。 DTP系统（100）可以在页面图像的频带中生成图像，其中图像作为压缩图像使用ADCT压缩和JPEG标准存储在DRAM（420）中。 DTP系统（100）包括用于图像创建和实现的各种流水线结构（图3-6）。

    METHOD AND APPARATUS FOR REDUCING STORAGE REQUIREMENTS FOR DISPLAY DATA
    8.
    发明公开
    METHOD AND APPARATUS FOR REDUCING STORAGE REQUIREMENTS FOR DISPLAY DATA 失效
    VERFAHREN UND VORRICHTUNG ZUR VERMINDERUNG DES SPEICHERBEDARFSFÜRANZEIGEDATEN

    公开(公告)号：EP0834154A4

    公开(公告)日：1999-01-27

    申请号：EP96921460

    申请日：1996-06-07

    申请人： ADOBE SYSTEMS INC

    发明人： TYLER WILLIAM B ,  FOSKETT NICHOLAS J ,  KONG SOON Y ,  FALL RICHARD N ,  GENTILE RONALD S

    IPC分类号： H04N1/411 ,  G06F3/12 ,  G06K15/00 ,  G06T9/00 ,  G06T11/60 ,  H03M7/30 ,  H04N1/21 ,  H04N1/41 ,  H04N1/413 ,  H04N7/26

    CPC分类号： G06K15/00 ,  G06K15/181 ,  G06K15/1851 ,  G06K15/1865 ,  G06K2215/0065 ,  G06K2215/0071 ,  G06T9/005 ,  G06T9/007 ,  G06T11/60 ,  H03M7/30 ,  H04N1/41

    摘要： A method and apparatus for reducing storage requirements for display data on a computer system (12). Data objects (22) to be displayed are organized into display lists and each data object includes an object type, such as text, graphic, and image. The data objects (22) are rasterized into an uncompressed band buffer and divided into non-intersecting bitmap regions each identified with one or more object types. Each non-empty region is assigned a compression algorithm dependent upon the type of the region and specified compression constraints. The regions are combined with each other into larger regions if appropriate, and each region is compressed using its assigned compression algorithm into a compressed band buffer, thus reducing the required storage space for the data objects. The compressed data is decompressed in scan line order with a selected decompression algorithm corresponding to the assigned compression algorithms to produce uncompressed output data. The uncompressed output data is supplied to an output display device (16) for display.

    摘要翻译： 一种减少计算机系统上显示数据的存储要求的方法和装置。 要显示的数据对象被组织到显示列表中，并且每个数据对象包括对象类型，例如文本，图形和图像。 将数据对象光栅化为未压缩的带缓冲区，并将其划分为每个用一个或多个对象类型标识的非相交位图区域。 每个非空区域都被分配一个取决于区域的类型和指定的压缩约束的压缩算法。 如果合适，这些区域彼此组合成更大的区域，并且使用其分配的压缩算法将每个区域压缩成压缩带缓冲器，从而减少数据对象所需的存储空间。 按照扫描线顺序对压缩数据进行解压缩，并使用与分配的压缩算法相对应的选择的解压缩算法来产生未压缩的输出数据。 将未压缩的输出数据提供给输出显示装置进行显示。