Method for calibrating a marking system to maintain color output consistency across multiple printers
    11.
    发明授权
    Method for calibrating a marking system to maintain color output consistency across multiple printers 失效
    用于校准标记系统以保持多个打印机的颜色输出一致性的方法

    公开(公告)号:US07069164B2

    公开(公告)日:2006-06-27

    申请号:US10673688

    申请日:2003-09-29

    IPC分类号: G01M19/00 G06F3/00 G01N21/25

    摘要: What is disclosed is a method for maintaining consistent color output across printers even when the inline sensors have differences in accuracy due to various technical and environmental factors. A spectrophotometer is used to measure the color quality of printed references. Adjustments are then iteratively made until reference charts of desired color quality are obtained. The printed reference allows one to achieve relatively high system performance by removing sensor inaccuracies. Using the printed reference measured by the inline sensor control systems of each machine are calibrated. At customer sites and at suitable intervals, a reference document can be read using the inline sensor on a reference machine and any differences from expected values can be calibrated out. The present method is also applicable to other color management functions such as memory color and automatic profile generations using inline/offline sensors and can be used for determining reference values while calibrating control systems of printers over a wide range of applications.

    摘要翻译: 所公开的是一种用于在打印机之间保持一致的颜色输出的方法,即使由于各种技术和环境因素,在线传感器的精度差异也是如此。 分光光度计用于测量印刷品的颜色质量。 然后重复进行调整,直到获得所需颜色质量的参考图。 打印的参考文献可以通过消除传感器的不准确性来实现相对较高的系统性能。 使用通过每台机器的在线传感器控制系统测量的打印参考进行校准。 在客户现场并以适当的间隔,可以使用参考机器上的内联传感器读取参考文档,并且可以校准与预期值的任何差异。 本方法还适用于使用内联/离线传感器的其它色彩管理功能,如存储器颜色和自动配置文件,并且可用于在广泛应用中校准打印机的控制系统时确定参考值。

    Full width array scanning spectrophotometer
    12.
    发明授权
    Full width array scanning spectrophotometer 失效
    全宽阵列扫描分光光度计

    公开(公告)号:US06975949B2

    公开(公告)日:2005-12-13

    申请号:US10833231

    申请日:2004-04-27

    摘要: A full width array spectrophotometer for full width scanning color analysis of color test targets, with one or two substantially linear elongated arrays of closely spaced multiple LED illumination sources of plural different color emissions in a multiply repeated pattern of at least three or four different colors transversely spanning a printer paper path and sequentially illuminated to illuminate a transverse band across a printed sheet moving in the paper path, and a corresponding elongated low cost light imaging bar with a parallel and correspondingly elongated array of multiple closely spaced different color sensitive (three or four rows of color-filtered) photodetectors, which imaging bar is positioned to detect and analyze light reflected from the transverse sequentially illuminated band.

    摘要翻译: 全宽阵列分光光度计,用于彩色测试目标的全宽度扫描颜色分析,具有一个或两个基本上线性的细长阵列,其具有多个不同颜色的多个LED照明源,具有至少三个或四个不同颜色的多重重复图案横向 跨越打印机纸路径并顺序照亮以照射在纸路径中移动的印刷片材上的横向带,以及相应的细长的低成本光成像条,其具有多个紧密间隔的不同颜色敏感(三或四个)的平行和相应细长的阵列 行彩色滤波的)光电检测器,其成像条被定位成检测和分析从横向顺序照射的带反射的光。

    Use of spectral sensors for automatic media identification and improved scanner correction
    13.
    发明授权
    Use of spectral sensors for automatic media identification and improved scanner correction 失效
    使用光谱传感器进行自动介质识别和改进扫描仪校正

    公开(公告)号:US06750442B2

    公开(公告)日:2004-06-15

    申请号:US10093220

    申请日:2002-03-06

    IPC分类号: G01J350

    CPC分类号: H04N1/6094 H04N1/603

    摘要: An image transfer apparatus with a scanner and a spectrophotometric sensor interacting logically with the scanner. When the scanner scans a medium containing a color image, the spectrophotometric sensor interacts with the scanner to aid in the automatic selection of a scanner color correction corresponding to the medium being scanned.

    摘要翻译: 具有扫描器和分光光度传感器的图像传送装置与扫描仪逻辑地相互作用。 当扫描仪扫描含有彩色图像的介质时,分光光度传感器与扫描仪相互作用,以帮助自动选择与被扫描介质相对应的扫描仪颜色校正。

    System and method for dynamically generated uniform color objects
    14.
    发明授权
    System and method for dynamically generated uniform color objects 有权
    用于动态生成均匀颜色对象的系统和方法

    公开(公告)号:US08699103B2

    公开(公告)日:2014-04-15

    申请号:US11170946

    申请日:2005-06-30

    IPC分类号: H04N1/60

    摘要: The present disclosure is directed to a system and method to render spatially uniform memory colors when images printed with CMYK primaries are not rendered uniformly due to output device quality errors. The disclosed method uses an array of sensors to scan a test image. Colors of interest are printed at the desired location first and then adjusted (iterated) to achieve a desired output quality. Iterations are carried out on the image on desired memory colors at the spatial resolution available in the measurement system. Colors of pixels are modified based on position where the pixels will be rendered, thereby compensating for any position/process related differences. Also disclosed is a process for incorporating modified memory colors before rendering, and the extension of memory color concepts to adjust colors for the uniform blocks (not edges), with uniformity defined by user definable thresholds.

    摘要翻译: 本公开涉及一种用于在由CMYK原色打印的图像由于输出设备质量错误而不均匀地呈现空间均匀的存储器颜色的系统和方法。 所公开的方法使用传感器阵列来扫描测试图像。 感兴趣的颜色首先打印在所需位置,然后进行调整(迭代)以获得所需的输出质量。 在测量系统中可用的空间分辨率下,对所需存储器颜色的图像进行迭代。 基于像素将被渲染的位置修改像素的颜色,从而补偿任何位置/过程相关差异。 还公开了一种用于在渲染之前并入改进的存储器颜色的过程,以及扩展存储器颜色概念以调整用于统一块(而不是边缘)的颜色,具有由用户可定义阈值定义的均匀性。

    Method to automatically identify and compensate for substrate differences using a sensor
    16.
    发明授权
    Method to automatically identify and compensate for substrate differences using a sensor 有权
    使用传感器自动识别和补偿基板差异的方法

    公开(公告)号:US07835036B2

    公开(公告)日:2010-11-16

    申请号:US11125897

    申请日:2005-05-02

    IPC分类号: H04N1/40 H04N1/46 G03F3/08

    摘要: Identifying the substrate type of a target substrate before patterning by a marking engine produces an opportunity to adjust the marking engine. The adjustments can enable the marking engine to produce higher quality work. The target substrate's substrate type can be automatically identified by obtaining its characteristics and submitting them to a classifier. A spectrophotometer can measure a substrates reflectance spectrum, which is a good characteristic for use in classifying. Classifiers can be based on known distance or correlation measures.

    摘要翻译: 在通过标记引擎构图之前识别目标衬底的衬底类型产生调整标记引擎的机会。 调整可以使打标机产生更高质量的工作。 目标基板的基板类型可以通过获得其特性并将其提交给分类器来自动识别。 分光光度计可以测量底物反射光谱,这是分类中使用的良好特性。 分类器可以基于已知距离或相关性度量。

    Color sensor to measure single separation, mixed color or IOI patches
    17.
    发明授权
    Color sensor to measure single separation, mixed color or IOI patches 有权
    颜色传感器可测量单分离,混色或IOI贴片

    公开(公告)号:US07751734B2

    公开(公告)日:2010-07-06

    申请号:US11535385

    申请日:2006-09-26

    IPC分类号: G03G15/00

    摘要: A marking engine forms one or more toned patches and/or images on a photoreceptor transfer device such as a photoreceptor belt or drum, either within or outside a main image area. A sensor illuminates the tones patches and/or images on the photoreceptor transfer device using wavelengths outside the photo response range of the photoreceptor transfer device, thereby allowing reflectance values for each toned patch and/or image to be measured without generating ghost images on the photoreceptor transfer device. The sensor supports collection of measured reflectance values from single-color, mixed-color; and multi-separation image-on-image toned patches and/or images directly from the photoreceptor transfer device at rates as high as one or more times per revolution of the photoreceptor transfer device. The measured reflectance values may be used to generate and/or update color stabilization tone reproduction curves.

    摘要翻译: 标记引擎在主图像区域内或外侧在感光器传送装置(例如感光带或鼓)上形成一个或多个调色片和/或图像。 传感器使用感光体传送装置的光响应范围之外的波长照亮感光体传送装置上的色调和/或图像,从而允许测量每个调色片和/或图像的反射率值,而不在感光体上产生重影图像 传输设备。 传感器支持从单色,混合色彩中收集测量的反射率值; 以及以感光体转印装置的每转一次或多次的速度从感光体转印装置直接进行多重分离的图像上调色片和/或图像。 测量的反射率值可以用于产生和/或更新稳定色调再现曲线。

    Methods and apparatuses for controlling print density
    18.
    发明授权
    Methods and apparatuses for controlling print density 失效
    用于控制打印浓度的方法和装置

    公开(公告)号:US07729015B2

    公开(公告)日:2010-06-01

    申请号:US11313018

    申请日:2005-12-20

    IPC分类号: G06K15/00 H04N1/405 H04N1/46

    摘要: Multiple input patches are received on an output media, which patches are characterized by print density representing a document processing system's response to different input grayscale values over a potential response space. Values associated with the print density of each input grayscale value are measured. Reference Engine Response Curves are determined from the measured print density values and input gray scale values. A variance data representative of a difference between each measured print density value and a respective reference Engine Response Curve is determined. The variance data is transformed into individual components. Based at least on one selected individual component, a set of calibration compensating Tone Reproduction Curves is determined. The determined calibration compensating Tone Reproduction Curves are applied to input grayscale values.

    摘要翻译: 在输出介质上接收多个输入补丁,这些补丁的特征在于打印密度,表示文档处理系统对潜在响应空间上的不同输入灰度值的响应。 测量与每个输入灰度值的打印浓度相关联的值。 参考引擎响应曲线由测量的打印浓度值和输入灰度值确定。 确定表示每个测量的打印浓度值和各个参考引擎响应曲线之间的差异的方差数据。 方差数据被转换为单个组件。 至少基于一个所选择的单独组件,确定一组校准补偿音再现曲线。 确定的校准补偿色调再现曲线被应用于输入灰度值。

    Fabry-perot tunable filter systems and methods
    20.
    发明授权
    Fabry-perot tunable filter systems and methods 失效
    法布里 - 珀罗可调滤波器系统和方法

    公开(公告)号:US07417746B2

    公开(公告)日:2008-08-26

    申请号:US11319276

    申请日:2005-12-29

    IPC分类号: G01B9/02 G02B27/64

    摘要: A spectral filter includes a two-dimensional array of Fabry-Perot cavity structures, a controller, and a sampling circuit used to switch the Fabry-Perot cavity. The filter receives an incoming image, the sampling circuit switches the cavity to generate a filter image, and the filtered image is detected by the photodetectors to convert a filtered image into digital data. The controller coordinates all the image capture functions of the spectral filter.

    摘要翻译: 光谱滤波器包括法布里 - 珀罗腔结构的二维阵列,控制器和用于切换法布里 - 珀罗腔的采样电路。 滤波器接收输入图像,采样电路切换空腔以产生滤波图像,并且由光电检测器检测滤波图像以将滤波图像转换为数字数据。 控制器协调光谱滤波器的所有图像捕获功能。