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    • 5. 发明授权
    • Hidden information at flush pattern locations for print jobs
    • 在打印作业的冲洗图案位置隐藏信息
    • US09207891B1
    • 2015-12-08
    • US14501863
    • 2014-09-30
    • Carl Michael Dennison
    • Carl Michael Dennison
    • G06F3/12G06K15/02
    • G06F3/1243G06F3/1208G06F3/121G06F3/1252G06F3/1259G06F3/1282G06K15/1889G06K2215/0082
    • Systems and methods are provided for inserting hidden information into flush patterns. One embodiment is a system comprising a marking engine that includes multiple printheads, an interface that receives print data for a print job, multiple Raster Image Processors (RIPs), and a print controller. The print controller divides the print data into logical pages, inserts printable information into the logical pages that distinguishes each logical page from other logical pages, and transmits the logical pages to the RIPs for rasterization. The print controller determines that a RIP has completed rasterizing a logical page, transmits the rasterized logical page to a Print Verification System (PVS), directs the printheads of the marking engine to print the rasterized logical page onto a physical page, and directs the printheads of the marking engine to apply a flush pattern onto the physical page at the location of the inserted printable information.
    • 系统和方法用于将隐藏信息插入到冲洗模式中。 一个实施例是包括标记引擎的系统,其包括多个打印头,接收用于打印作业的打印数据的接口,多个光栅图像处理器(RIP)和打印控制器。 打印控制器将打印数据划分为逻辑页面,将可打印信息插入到将逻辑页面与其他逻辑页面区分开的逻辑页面中,并将逻辑页面发送到RIP以进行光栅化。 打印控制器确定RIP已完成光栅化逻辑页面,将光栅化的逻辑页面传输到打印验证系统(PVS),引导打标机的打印头将光栅化的逻辑页面打印到物理页面上,并将打印头 的标记引擎,以在插入的可打印信息的位置上将物理页面上的刷新图案应用。
    • 6. 发明授权
    • Color shift printing without using special marking materials
    • 彩色打印不使用特殊标记材料
    • US09082068B1
    • 2015-07-14
    • US14270868
    • 2014-05-06
    • XEROX CORPORATION
    • Edward N. Chapman
    • H04N1/40G06K15/02
    • G06K15/1878B41M3/14B41M3/148G06K15/188G06K15/4095G06K2215/0082H04N1/62
    • Methods and devices receive a document having an apparent color shift region. Such methods and devices automatically select first and second colors to have different reflectance properties for use in the apparent color shift region, and these methods and devices automatically control a first pixel density of the first color to be less than a second pixel density of the second color within the apparent color shift region. The methods and devices print the document. The selection of the first color and the second color, and the control of the first pixel density to be less than the second pixel density causes the second color to have a greater change in brightness appearance relative to a change in brightness appearance of the first color when the printed document is viewed from different angles relative to a light source.
    • 方法和装置接收具有明显色移区域的文件。 这些方法和装置自动选择第一和第二颜色以具有用于表观色移区域的不同反射率特性,并且这些方法和装置自动控制第一颜色的第一像素密度小于第二颜色的第二像素密度 在表观色移区域内的颜色。 方法和设备打印文档。 第一颜色和第二颜色的选择以及第一像素密度的控制小于第二像素密度使第二颜色相对于第一颜色的亮度变化的变化具有更大的亮度外观变化 当从相对于光源的不同角度观察打印文件时。