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1. 发明授权

US06266149B1 Printer driver with compact representation of drawing environment changes 失效
标题翻译：打印机驱动程序具有绘图环境变化的紧凑表示
公开(公告)号：US06266149B1
公开(公告)日：2001-07-24
申请号：US08593114
申请日：1996-02-01
申请人： James C. Zandee
发明人： James C. Zandee
IPC分类号： G06F1500
CPC分类号： G06T11/00
摘要： A printer driver, for example a QuickDraw printer driver, keeps track of changes in a drawing environment (specified by a GrafPort) by saving State records. Rather than filling up the State with the contents of each pattern and clip region, references to each of these members are stored in the State. This referencing allows each component of a State to be saved separately while still allowing the State to be reproduced precisely when it is time to draw. Referencing can greatly reduce disk accesses and file size, thereby accelerating printing. Referencing also allows significant time to be saved during state comparison. Whereas previous drivers have required a State to GrafPort comparison at translation (drawing) time, in the present method, each reference in the current state may be compared with references from the previous state to see which fields have changed. Comparing references, which may be stored in four bytes, is much faster than comparing large patterns and regions.
摘要翻译：打印机驱动程序（例如QuickDraw打印机驱动程序）通过保存状态记录来跟踪图形环境（由GrafPort指定）中的更改。而不是用每个模式和剪辑区域的内容填充状态，而是将这些成员的引用存储在状态中。这个引用允许一个状态的每个组件被单独保存，同时还允许在准时绘制时准确地再现状态。引用可以大大减少磁盘访问和文件大小，从而加速打印。参考也允许在状态比较期间节省大量时间。而以前的驱动程序需要在翻译（绘图）时间的状态下进行GrafPort比较，在本方法中，可以将当前状态中的每个引用与先前状态的引用进行比较，以查看哪些字段已经改变。比较可能存储在四个字节中的引用比比较大型模式和区域要快得多。

2. 发明授权

US5881210A Color printing system and method with reduced bleed 失效
标题翻译：彩色打印系统和减少出血的方法
公开(公告)号：US5881210A
公开(公告)日：1999-03-09
申请号：US675847
申请日：1996-07-03
申请人： Randall G. Guay , James C. Zandee
发明人： Randall G. Guay , James C. Zandee
IPC分类号： G06K15/10 , H04N1/60 , G06F15/00
CPC分类号： G06K15/102 , H04N1/6022 , G06K2215/0094
摘要： A color printing system with reduced bleed includes a computer and a color printer. The computer has a digital processor and memory accessed by the digital processor, where the memory stores printable objects selected from the group comprising graphic objects and non-graphic objects and pixel maps corresponding to the graphic objects and the non-graphic objects. The color printer is coupled to the computer and is capable of printing the pixel maps using color pixels and black pixels. An image processor implemented on the computer identifies the graphic objects among the printable objects, adjusts pixel densities of the graphic objects, and renders the printable objects as the pixel maps, such that black pixel densities of pixel maps of the graphic objects are reduced without reducing black pixel densities of pixel maps of the non-graphic objects. A method of the present invention includes the steps of identifying graphic objects among printable objects, adjusting color information of the graphic objects if bleed reduction criteria are met, and developing printer control information from the printable objects that can provide for a lower black pixel density for the graphic objects due to the adjustment of the color information of the graphic objects.
摘要翻译：具有减少渗色的彩色打印系统包括计算机和彩色打印机。计算机具有由数字处理器访问的数字处理器和存储器，其中存储器存储从包括图形对象和非图形对象的组中选择的可打印对象以及对应于图形对象和非图形对象的像素图。彩色打印机耦合到计算机，并且能够使用彩色像素和黑色像素打印像素图。在计算机上实现的图像处理器识别可打印对象之间的图形对象，调整图形对象的像素密度，并将可打印对象作为像素映射，使得图形对象的像素图的黑色像素密度减小而不减少非图形对象的像素图的黑色像素密度。本发明的方法包括以下步骤：识别可打印对象之间的图形对象，如果满足渗色减少标准，则调整图形对象的颜色信息，以及从可打印对象开发可提供较低黑色像素密度的打印机控制信息，图形对象由于调整图形对象的颜色信息。

3. 发明授权

US5872895A Method for object based color matching when printing a color document 失效
标题翻译：打印彩色文档时基于对象的颜色匹配的方法
公开(公告)号：US5872895A
公开(公告)日：1999-02-16
申请号：US315155
申请日：1994-09-29
申请人： James C. Zandee , Randall G. Guay
发明人： James C. Zandee , Randall G. Guay
IPC分类号： G06T11/00 , B41B15/00 , G03F3/08 , G06F15/00 , H04N1/46
CPC分类号： H04N1/6072 , G06T11/001
摘要： A method for object based color matching when printing color documents. Objects are anything that can be drawn, and include text, rectangle, oval, region, polygon, and PixMaps. Color matching is performed on each object in a page prior to rendering the object into a pixel map. This is accomplished by setting up multiple concurrent color matching sessions that have different rendering intents. Depending upon the object type, a color matching session with a particular rendering intent is used to perform color matching on the object.
摘要翻译：一种在打印彩色文档时基于对象的颜色匹配的方法。对象是可以绘制的东西，包括文本，矩形，椭圆，区域，多边形和PixMaps。在将对象渲染到像素图之前，对页面中的每个对象执行颜色匹配。这是通过设置具有不同渲染意图的多个并发颜色匹配会话来实现的。根据对象类型，使用具有特定渲染意图的颜色匹配会话来对对象执行颜色匹配。

4. 发明授权

US5758044A Method and apparatus for rendering using a band by band depth adjustment 失效
标题翻译：使用频带深度调整进行渲染的方法和装置
公开(公告)号：US5758044A
公开(公告)日：1998-05-26
申请号：US782892
申请日：1996-12-30
申请人： James C. Zandee , Steven P. Bischoff
发明人： James C. Zandee , Steven P. Bischoff
IPC分类号： G06K15/02 , G06K15/00
CPC分类号： G06K15/02 , G06K2215/0065 , G06K2215/0094
摘要： A method and apparatus for rendering using band by band depth adjustment preferably begins by recording extents for each object on a page. An extent indicates where color or non-color ink begins and ends on a page. Extent blocks are then created. An extent block is comprised of at least one extent of the same ink type. Next, a band is created for each extent block. The bit depth for each band is adjusted based upon the ink type associated with each extent block. If the ink is black or white, a band having a bit depth of one is created. If the ink is color or gray scale, the bit depth is adjusted to the proper depth for that band. An object or portion of an object is then rendered into a band having the necessary bit depth for that object.
摘要翻译：使用频带深度调整进行渲染的方法和装置优选地通过在页面上记录每个对象的盘区来开始。一个范围表示在一页上开始和结束颜色或非彩色墨水的位置。然后创建区块。范围块由相同油墨类型的至少一个程度组成。接下来，为每个扩展块创建一个频带。基于与每个扩展块相关联的墨水类型来调整每个波段的钻头深度。如果墨水是黑色或白色的，则产生位深度为1的波段。如果墨水是颜色或灰度级，则将钻头深度调整到该波段的适当深度。然后将对象的对象或部分呈现为具有该对象的必要位深度的带。

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