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11. 发明申请

US20120300230A1 COLOR MANAGEMENT FOR SELECTABLE GLOSS APPLICATIONS 有权
标题翻译：可选择GLOSS应用程序的颜色管理
公开(公告)号：US20120300230A1
公开(公告)日：2012-11-29
申请号：US13116233
申请日：2011-05-26
申请人： Edul N. Dalal , Wencheng Wu
发明人： Edul N. Dalal , Wencheng Wu
IPC分类号： G06K15/00
CPC分类号： B41J29/393 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00063 , H04N1/00068 , H04N1/00087 , H04N1/0009 , H04N1/6033 , H04N2201/0094 , H04N2201/326
摘要： Methods and systems are disclosed which are capable of efficiently performing color management of a variable gloss color printing system. The methods and systems select at least one set of the linear color values corresponding to the color profile for the printing device (at the nominal gloss condition). The linear color values selected comprise those obtained from color values corresponding to each node of the color profile at the nominal gloss condition. In a colorimetric embodiment, the linear color values can comprise: tristimulus values XYZ; red, green, blue (RGB); or luminance component Y, and two chromatic components C1 and C2 (YCC). In a reflectance embodiment, the linear color values comprise reflectance spectra. This exemplary method adds an offset term to each of the linear color values to produce a corresponding set of modified linear color values, and generates a color profile for the printing device at the desired gloss condition based on the modified linear color values.
摘要翻译：公开了能够有效执行可变光泽彩色打印系统的颜色管理的方法和系统。方法和系统选择与印刷装置的颜色特征对应的至少一组线性颜色值（在标称光泽条件下）。所选择的线性颜色值包括从在标称光泽条件下的颜色轮廓的每个节点对应的颜色值获得的。在比色实施例中，线性颜色值可以包括：三刺激值XYZ; 红，绿，蓝（RGB）; 或亮度分量Y，以及两个彩色分量C1和C2（YCC）。在反射率实施例中，线性颜色值包括反射光谱。该示例性方法将偏移项添加到每个线性颜色值以产生相应的一组修改的线性颜色值，并且基于修改的线性颜色值在期望的光泽条件下为打印装置生成颜色特征。

12. 发明申请

US20120200897A1 CLUSTER MODEL FOR CONTROLLING COLOR IN A COLOR MARKING DEVICE 有权
标题翻译：用于在彩色标记设备中控制颜色的聚类模型
公开(公告)号：US20120200897A1
公开(公告)日：2012-08-09
申请号：US13023202
申请日：2011-02-08
申请人： Lalit Keshav Mestha , Edul N. Dalal , Wencheng Wu
发明人： Lalit Keshav Mestha , Edul N. Dalal , Wencheng Wu
IPC分类号： G06T5/00
CPC分类号： H04N1/6033
摘要： What is disclosed is a system and method for improving image quality of a color of interest using a cluster model in a color printing system involving the following. First, one or more image quality attributes are selected for a target color marking device. A cluster model is received which comprises a plurality of clusters with each cluster having an associated transform. The cluster model is used to estimate an image quality parameter. The image quality parameter is used to select colorant sets and thereby to improve the image quality in the marking device. Various embodiments of the use of cluster models are disclosed.
摘要翻译：公开的是一种用于在涉及以下的彩色打印系统中使用聚类模型来改善感兴趣的颜色的图像质量的系统和方法。首先，为目标颜色标记装置选择一个或多个图像质量属性。接收到包括多个聚类的聚类模型，每个聚类具有相关联的变换。聚类模型用于估计图像质量参数。图像质量参数用于选择着色剂组，从而提高标记装置中的图像质量。公开了使用群集模型的各种实施例。

13. 发明申请

US20120154831A1 UPDATING A SMOOTHNESS CONSTRAINED CLUSTER MODEL FOR COLOR CONTROL IN A COLOR MANAGEMENT SYSTEM 有权
标题翻译：在颜色管理系统中更新用于颜色控制的平滑约束聚类模型
公开(公告)号：US20120154831A1
公开(公告)日：2012-06-21
申请号：US12969854
申请日：2010-12-16
申请人： Wencheng Wu , Lalit Keshav Mestha , Edul N. Dalal
发明人： Wencheng Wu , Lalit Keshav Mestha , Edul N. Dalal
IPC分类号： H04N1/60
CPC分类号： H04N1/6033
摘要： What is disclosed is a novel system and method for updating a cluster model for color control. In one example embodiment, a cluster model is received and analyzed to identify clusters therein. Each of the identified clusters has an associated transform. Thereafter, in response to a threshold event having occurred, a critical cluster is identified and a critical color is identified from the cluster. Steps for identifying a critical color are more fully described herein. A selected number of patches is then printed in each of the critical colors and color measurements are obtained from the printed patches using, for instance, a colorimeter or spectrophotometer. If the color measurements have deviated beyond a defined threshold, then update the cluster model by: updating the transform associated with the cluster; redefining the number of clusters; redefining a center of any of the clusters; or redefining a boundary of the clusters.
摘要翻译：公开的是用于更新用于颜色控制的聚类模型的新型系统和方法。在一个示例实施例中，接收并分析集群模型以识别其中的集群。所识别的每个群集都具有相关联的变换。此后，响应于发生的阈值事件，识别关键簇并且从集群识别关键颜色。用于识别关键颜色的步骤在本文中更全面地描述。然后以每种关键颜色印刷所选数量的贴片，并且使用例如色度计或分光光度计从印刷的贴片获得颜色测量值。如果颜色测量值偏离了定义的阈值，则通过更新与集群关联的变换来更新集群模型; 重新定义集群数; 重新定义任何集群的中心; 或重新定义集群的边界。

14. 发明授权

US08092963B2 Toner compositions 有权
标题翻译：调色剂组合物
公开(公告)号：US08092963B2
公开(公告)日：2012-01-10
申请号：US12689522
申请日：2010-01-19
申请人： Daryl W. Vanbesien , Karen Ann Moffat , Yi Xin Gong , Edul N. Dalal , Jing Wang , Richard P. N. Veregin , Jordan H. Wosnick , Cuong Vong , Valerie M. Farrugia
发明人： Daryl W. Vanbesien , Karen Ann Moffat , Yi Xin Gong , Edul N. Dalal , Jing Wang , Richard P. N. Veregin , Jordan H. Wosnick , Cuong Vong , Valerie M. Farrugia
IPC分类号： G03G9/09
CPC分类号： G03G9/0906 , G03G9/0804 , G03G9/08755 , G03G9/08782 , G03G9/091 , G03G9/0926
摘要： The present disclosure provides processes for producing images of excellent color fidelity when incorporating a magenta toner with a lower colorant loading in addition to a first magenta toner. In embodiments, the magenta pigmented particles may be magenta emulsion aggregation toners. In accordance with the present disclosure, a pair of magenta toners are matched in color, wherein the color of a first magenta toner printed at a predetermined halftone area coverage on a substrate substantially matches the color of the solid (100%) printed patch of the second magenta toner, which is lighter than the first magenta toner, thus avoiding a visible hue shift on the print that would otherwise be objectionable. In embodiments, the light magenta toner is color matched by adding a hue-adjusting colorant or combination of colorants which absorb wavelengths of light between 400 and 500 nanometers, and optionally adding a shade-adjusting colorant or combination of colorants which absorb wavelengths of light between 600 and 700 nanometers.
摘要翻译：本公开提供除了第一品红色调色剂之外，当掺入具有较低着色剂负载的品红色调色剂时，还提供了用于产生具有优异色彩保真度的图像的方法。在实施方案中，品红色着色颗粒可以是洋红色乳液聚集调色剂。根据本公开，一对品红色调色剂的颜色相匹配，其中印刷在基板上的预定半色调区域覆盖的第一品红色调色剂的颜色基本上与固体（100％）印刷贴片的颜色匹配第二品红色调色剂比第一品红色调色剂轻，从而避免了印刷品上可见的色调偏移，否则会令人反感。在实施方案中，通过添加色调调节着色剂或吸收400至500纳米之间的光的波长的着色剂的组合，并且可选地添加调色剂或着色剂的组合，所述着色剂吸收波长的光 600和700纳米。

15. 发明申请

US20110286014A1 UPDATING AN IMAGE QUALITY METRIC DATABASE TO ACCOUNT FOR PRINTER DRIFT 有权
标题翻译：将图像质量公制数据库更新到打印机缓存的帐户
公开(公告)号：US20110286014A1
公开(公告)日：2011-11-24
申请号：US12781988
申请日：2010-05-18
申请人： Wencheng Wu , Edul N. Dalal
发明人： Wencheng Wu , Edul N. Dalal
IPC分类号： G06F15/00
CPC分类号： H04N1/603 , H04N1/40006
摘要： What is disclosed is a novel system and method for determining a printer metric in terms of image quality (IQ) over a large complex set of conditions based upon measurements taken over a small simple set of conditions while compensating for printer drift. The present system and method effectively utilizes a predictive model that predicts noise measurements of multi-separations from those of single-separation colors and/or a subset of the multi-separations. Because a model is used to comprehend the metric over the entire gamut, the number of patches is reduced. This reduction enables the method to be used within a machine to dynamically characterize the device's image quality metric. Various embodiments have been disclosed.
摘要翻译：所公开的是一种新颖的系统和方法，用于在补偿打印机漂移的基础上，基于在一小组简单的条件下进行的测量，在大的复杂条件集上根据图像质量（IQ）来确定打印机度量。本系统和方法有效地利用预测多分离与单分离颜色和/或多分离子集的噪声测量的预测模型。由于使用模型来了解整个色域中的度量，因此减少了补丁的数量。这种减少使得可以在机器内使用该方法来动态地表征设备的图像质量度量。已经公开了各种实施例。

16. 发明申请

US20110032573A1 System and Method of Halftone Printing of Image Spot Colors Using Ranked Ordered Pairing of Colorants and Halftone Screens 有权
标题翻译：使用着色剂和半色调屏幕的排序顺序配对的半色调打印图像色彩的系统和方法
公开(公告)号：US20110032573A1
公开(公告)日：2011-02-10
申请号：US12536046
申请日：2009-08-05
申请人： Edul N. Dalal , Robert P. Loce
发明人： Edul N. Dalal , Robert P. Loce
IPC分类号： H04N1/405
CPC分类号： H04N1/54 , H04N1/4051
摘要： Systems and methods of halftoning an image for extended-colorant printing image spot colors are provided which perform a quality ranking of a plurality of periodic halftone screens to be used in halftoning the image and an objectionability ranking of the colorants used to produce the one or more image spot colors. Halftone screen-to-colorant assignments are then made using a ranked ordered pairing of the ranked screens and ranked colorants. The image is halftoned using these assignments and the results can be printed or saved for future printing. Pixel tags can be used to identify the ranked ordered halftone screen-to-colorant assignments.
摘要翻译：提供了用于扩展着色剂打印图像专色的图像半色调的系统和方法，其执行要在半色调图像中使用的多个周期性半色调画面的质量等级，以及用于产生一个或多个图像专色。然后使用排序屏幕和排名着色剂的排序顺序配对进行半色调屏幕到着色剂分配。使用这些作业对图像进行半色调处理，结果可打印或保存以备将来打印。像素标签可用于识别排序的排序半色调屏幕到着色剂分配。

17. 发明申请

US20110032544A1 Optimal patch code design via device characterization 有权
标题翻译：通过器件表征优化补丁码设计
公开(公告)号：US20110032544A1
公开(公告)日：2011-02-10
申请号：US12462527
申请日：2009-08-05
申请人： Wencheng Wu , Edul N. Dalal
发明人： Wencheng Wu , Edul N. Dalal
IPC分类号： H04N1/60 , G06F3/12
CPC分类号： H04N1/6033
摘要： A method for optimally using color patch codes or color barcodes for transmitting machine-readable information, via device characterization, is disclosed to comprise characterizing a printing device and optionally a sensing device for identifying a number of recognizably spaced printer output colors; deriving a code book, by relating the printer output colors and their corresponding input values to information elements; and using the code book for encoding and decoding the information to be transmitted. The recognizably spaced printer output colors are in terms of a color space relevant to a color patch code or color barcode sensing device, and are related to the corresponding marking device input values.
摘要翻译：公开了一种用于通过设备表征来最佳地使用色块代码或颜色条形码来发送机器可读信息的方法，其包括表征打印装置和可选地用于识别多个可识别间隔的打印机输出颜色的感测装置; 通过将打印机输出颜色及其相应的输入值与信息元素相关联来导出代码簿; 并使用码本对要发送的信息进行编码和解码。可识别间隔的打印机输出颜色是与色块代码或颜色条形码检测装置相关的颜色空间，并且与相应的标记装置输入值有关。

18. 发明申请

US20100189348A1 SPOT COLOR TABLE COMPENSATION 有权
标题翻译： SPOT彩色表补偿
公开(公告)号：US20100189348A1
公开(公告)日：2010-07-29
申请号：US12358806
申请日：2009-01-23
申请人： Edul N. Dalal , Wencheng Wu
发明人： Edul N. Dalal , Wencheng Wu
IPC分类号： G06K9/00
CPC分类号： H04N1/6033 , H04N1/62
摘要： Spot color tables, or spot color emulation colorant recipes are updated using information generated during a first and second process color related system calibration. Rather than separately calibrate, through trial and error, individual spot color emulation colorant recipes, information from the first and second general system calibrations is used to adjust spot color recipes. In one embodiment, processing an existing or initial spot color recipe through both a first system model and a second system model generates a device independent color difference. A colorant difference is then determined by transforming a predicted color difference according to estimated partial derivatives of aspects of the second system model, wherein the partial derivatives relate changes in colorant amounts to changes in parameter values of a machine independent color space.
摘要翻译：使用在第一和第二过程颜色相关系统校准期间生成的信息来更新专色表或专色仿真着色剂配方。通过试验和错误单独校准各个专色仿真着色剂配方，而使用第一次和第二次通用系统校准的信息来调整专色配方。在一个实施例中，通过第一系统模型和第二系统模型来处理现有或初始的专色配方产生独立于设备的色差。然后通过根据第二系统模型的方面的估计偏导数变换预测色差来确定着色剂差异，其中部分导数将着色剂量的变化与机器独立色彩空间的参数值的变化相关联。

19. 发明授权

US06529616B1 Technique for accurate color-color registration measurements 失效
标题翻译：技术用于准确的颜色配准测量
公开(公告)号：US06529616B1
公开(公告)日：2003-03-04
申请号：US09450181
申请日：1999-11-29
申请人： D. Rene Rasmussen , Edul N. Dalal , Susan June Zoltner
发明人： D. Rene Rasmussen , Edul N. Dalal , Susan June Zoltner
IPC分类号： G06K900
CPC分类号： H04N1/00015 , H04N1/00002 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00058 , H04N1/00061 , H04N1/00068 , H04N1/00079 , H04N1/6033
摘要： A special test pattern and image quality analysis system and process for evaluating the test pattern are provided to accurately measure color-color registration in an image output device that prints in CMYK color. The process is robust even when using relatively low-resolution CCD-based scanners and also is unique in that the process automatically factors out errors originating from skew between the detector and the subject of measurement. Further, registration of each of C, M, and Y relative to K are independently determined. The test pattern includes an upper part and a lower part, with both the upper and lower parts having a black K component and the upper part also including color components for C, M and Y. The system and method have potential for being built in to color printers or copiers to allow measurement of color misregistration within the paper path and automatically correct for color registration errors.
摘要翻译：提供了一种特殊的测试图案和图像质量分析系统以及用于评估测试图案的过程，以准确测量以CMYK颜色打印的图像输出设备中的颜色配准。即使使用相对较低分辨率的基于CCD的扫描仪，该过程也是稳健的，并且也是唯一的，因为该过程自动地导出来自检测器和测量对象之间的偏差的误差。此外，分别确定C，M和Y中每一个相对于K的配准。测试图案包括上部和下部，上部和下部均具有黑色K分量，上部还包括C，M和Y的颜色分量。该系统和方法具有内置于彩色打印机或复印机，以允许测量纸张路径内的颜色重合失调，并自动校正颜色配准错误。

20. 发明授权

US06203953B1 Method for forming a toner image with low toner pile height 有权
标题翻译：用于形成具有低调色剂绒头高度的调色剂图像的方法
公开(公告)号：US06203953B1
公开(公告)日：2001-03-20
申请号：US09437117
申请日：1999-11-10
申请人： Edul N. Dalal
发明人： Edul N. Dalal
IPC分类号： G03G1301
CPC分类号： H04N1/54 , G03G13/01 , G03G2215/0106 , G03G2215/0495
摘要： A method to form a seven-color CMYKRGB or eight-color CMYKRGBW image having reduced toner pile height than in conventional four-color xerography, resulting in more uniform image gloss. The method includes the steps of: forming first spot next to spot toner images by placing spots of toner of a first color next to spots of toner of a second color on a first photoconductive member; forming second spot next to spot toner images by placing spots of toner of a third color next to spots of toner of a four color a second photoconductive member, and transferring said first and second spot next to spot images to form a composite spot next to spot image on an intermediate imaging member.
摘要翻译：与传统的四色静电复印相比，形成具有降低的调色剂桩高度的七色CMYKRGB或八色CMYKRGBW图像的方法，导致更均匀的图像光泽度。该方法包括以下步骤：通过将第一颜色的调色剂的斑点放置在第一光敏元件上的第二颜色的调色剂的斑点旁边，来形成邻近定影调色剂图像的第一点; 通过将第三颜色的调色剂的斑点放置在四色调色剂的第二感光体的位置旁边，形成第二点，并将所述第一和第二斑点转印到斑点图像旁边以形成位于斑点附近的复合斑点图像在中间成像构件上。

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