公开(公告)号：US06324305B1

公开(公告)日：2001-11-27

申请号：US09218643

申请日：1998-12-22

申请人： Thomas M. Holladay ,  Robert R. Buckley ,  R. Victor Klassen ,  Norman W. Zeck ,  Peter A. Crean

发明人： Thomas M. Holladay ,  Robert R. Buckley ,  R. Victor Klassen ,  Norman W. Zeck ,  Peter A. Crean

IPC分类号： G06K936

CPC分类号： G06K9/00456 ,  H04N1/41

摘要： An improved technique for compressing a color or gray scale pixel map representing a document using an MRC format including a method of segmenting an original pixel map into two planes, and then compressing the data or each plane in an efficient manner. The image is segmented such that pixels that compress well under a lossy compression technique are placed on one plane and pixels that must be compressed losslessly are placed on another plane. Lossy compression is then applied to the lossy pixel plane while lossless compression is applied to the lossless pixel plane.

摘要翻译： 一种改进的技术，用于使用包括将原始像素图分割成两个平面的方法的MRC格式压缩表示文档的颜色或灰度像素图，然后以有效的方式压缩数据或每个平面。 图像被分割，使得在有损压缩技术下压缩的像素被放置在一个平面上，并且必须将无损压缩的像素放置在另一平面上。 然后将有损压缩应用于有损像素平面，同时将无损压缩应用于无损像素平面。

公开(公告)号：US06175714B1

公开(公告)日：2001-01-16

申请号：US09388672

申请日：1999-09-02

申请人： Peter A. Crean

发明人： Peter A. Crean

IPC分类号： G03G2100

CPC分类号： H04N1/32144 ,  G03G21/046 ,  H04N1/00846 ,  H04N1/00851 ,  H04N1/4413 ,  H04N1/444 ,  H04N2201/3204 ,  H04N2201/3225 ,  H04N2201/3269

摘要： A digital image reproducing apparatus, such as a copier, facsimile machine, or a scanner includes a code detector which analyzes a digital representation of an input document, either directly or in memory for visually apparent machine readable code embedded in the background of the document. A decoder operatively connected with the detector analyzes the machine readable code and determines a security code associated with the original document. A control unit compares the security code from the document with a user authorization or security code and, based on the comparison determines whether to allow or disallow the digitized document to be reproduced. If the document is allowed to be reproduced, an image reproducing system, under the control of the control unit, reproduces the document including any image on the document and the low density tinted background containing the machine readable code. As an added security feature, the control unit may also direct portions of the user identification data arid/or the security data associated with the document to be stored in a database for later review by security personnel. Additionally, a processor in communication with the control unit may be provided to modify the security code of the original document to include other data, such as user information, in the reproduced document. Alternately, the processor may also generate new security codes at the direction of a user for incorporation into documents which contain no original security code, or whose original security code should be changed.

摘要翻译： 诸如复印机，传真机或扫描仪的数字图像再现设备包括代码检测器，其直接地或在存储器中分析输入文档的数字表示，用于在文档的背景中嵌入的视觉上可视的机器可读代码。 与检测器可操作地连接的解码器分析机器可读代码并确定与原始文档相关联的安全代码。 控制单元将来自文档的安全码与用户授权或安全码进行比较，并且基于比较确定是允许还是不允许数字化文档被再现。 如果允许文档被再现，则在控制单元的控制下的图像再现系统再现包括文档上的任何图像和包含机器可读代码的低密度着色背景的文档。 作为附加的安全特征，控制单元还可以将用户标识数据的部分和/或与要存储在数据库中的文档相关联的安全数据指示给安全人员以备以后审查。 此外，可以提供与控制单元通信的处理器以修改原始文档的安全码，以将其他数据（例如用户信息）包括在再现的文档中。 或者，处理器还可以在用户的​​方向上生成新的安全码，以便并入不包含原始安全码的文档，或者其原始安全码应该被改变。

公开(公告)号：US6111593A

公开(公告)日：2000-08-29

申请号：US786611

申请日：1997-01-21

申请人： Thomas A. Henderson ,  Peter A. Crean

发明人： Thomas A. Henderson ,  Peter A. Crean

IPC分类号： B41J2/52 ,  H04N1/50 ,  B41J2/385

CPC分类号： B41J2/52 ,  H04N1/506 ,  Y10S347/90

摘要： A method for achieving multiple exposure levels for IOI (IMAGE-ON-IMAGE) xerography when imaging a second color through a first toner layer previously developed on the photoreceptive member. In the example illustrated the data from the previous image paths (magenta and yellow) is analyzed. If the signal indicates that a magenta or yellow bit is present, the cyan output bit information passes to the ROS unchanged, or at full intensity. If however, the magenta and yellow are not present, a modified pattern providing an appropriate reduced exposure signal is sent to the ROS. The process of laser attenuation is blended with halftoning logic to avoid image degradation due to the attenuation.

摘要翻译： 一种当通过先前在感光元件上显影的第一调色剂层对第二颜色进行成像时，实现IOI（IMAGE-ON-IMAGE）静电复印的多重曝光水平的方法。 在所示的示例中，分析来自先前图像路径（品红色和黄色）的数据。 如果信号表示存在品红色或黄色位，则青色输出位信息将以不变的方式传递到ROS，或以全强度传递。 然而，如果品红色和黄色不存在，则向ROS发送提供适当的减少曝光信号的修改图案。 激光衰减的过程与半色调逻辑混合，以避免由于衰减而导致的图像劣化。

公开(公告)号：US4751517A

公开(公告)日：1988-06-14

申请号：US10100

申请日：1987-02-02

申请人： Peter A. Crean ,  David B. Feldman

发明人： Peter A. Crean ,  David B. Feldman

IPC分类号： B41J2/115 ,  B41J2/01 ,  B41J2/125 ,  G01D15/18 ,  G02B5/14

CPC分类号： B41J2/125

摘要： Mounted at every other intersection of the deflection planes of the ink droplets issued by a multi-nozzle printhead of a pagewidth continuous stream ink printer are two-dimensional differential optical sensors. These sensors are located near the printing plane and gutters of the printer and comprise first and second input optical fibers, each having one end coupled to a common light source and the other free ends directing light towards aligned confronting free ends of respective associated pairs of output optical fibers. One of the input fibers and its associated pair of output fibers are inclined with respect to the other, though both input fibers and their associated pair of output fibers are either coplanar or contiguous with the same plane. The opposite ends of the pairs of output fibers are respectively coupled to differential circuits via photodetectors, so that each sensed droplet position may be determined relative to both the droplet deflection plane and the plane perpendicular thereto as the droplet travels along its flight path therepast.

摘要翻译： 安装在由页宽连续流式墨水打印机的多喷嘴打印头发出的墨滴的偏转平面的每隔一个交点处都是二维差分光学传感器。 这些传感器位于打印平面和打印机的沟槽附近，并且包括第一和第二输入光纤，每个具有一个端部连接到公共光源，而另一个自由端将光引向相应的相应输出对的对准的面对的自由端 光纤。 输入光纤及其相关的一对输出光纤之一相对于另一个输入光纤倾斜，尽管输入光纤及其相关联的一对输出光纤与同一平面共面或连续。 输出光纤对的相对端分别通过光电检测器耦合到差分电路，从而当液滴沿其飞行路径行进时，可以相对于液滴偏转平面和垂直于其的平面来确定每个感测的液滴位置。

公开(公告)号：US08462386B2

公开(公告)日：2013-06-11

申请号：US12607212

申请日：2009-10-28

申请人： Edul N. Dalal ,  Wencheng Wu ,  Alvaro E. Gil ,  Peter A. Crean

发明人： Edul N. Dalal ,  Wencheng Wu ,  Alvaro E. Gil ,  Peter A. Crean

IPC分类号： G01J3/46

CPC分类号： G01J3/46 ,  G01J3/462 ,  G01J3/463 ,  H04N1/6033

摘要： Differences between an offline spectrophotometer and an inline spectrophotometer can result in differences between a hardcopy target color and a printed reproduction of that color. The inline spectrophotometer is inside of a printer and configured to measure printer output. As such, the inline spectrophotometer cannot conveniently measure the hardcopy target color. A printing error or an instrument offset can be determined and passed to a color correction module that updates the device dependent color specification associated with the given spot color. This color specification may be stored, for example, in the printer controller, and used when a document subsequently calls for that spot color, thereby providing accurate color reproduction from that particular printer incorporating that particular inline spectrophotometer.

摘要翻译： 离线分光光度计和在线分光光度计之间的差异可能导致硬拷贝目标颜色和该颜色的印刷再现之间的差异。 在线分光光度计位于打印机内部，并配置为测量打印机输出。 因此，在线分光光度计不能方便地测量硬拷贝目标颜色。 可以确定打印错误或仪器偏移并将其传递给更新与给定专色相关联的依赖于设备的颜色规格的颜色校正模块。 该颜色规范可以存储在例如打印机控制器中，并且当文档随后调用该专色时使用，从而从包含该特定的在线分光光度计的特定打印机提供准确的颜色再现。

公开(公告)号：US07738140B2

公开(公告)日：2010-06-15

申请号：US11507405

申请日：2006-08-21

申请人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

发明人： Joseph D. Hancock ,  Peter S. Fisher ,  Lalit K. Mestha ,  Kenneth J. Mihalyov ,  Tonya L. Love ,  Peter A. Crean ,  Matthew F. Hoffmann

IPC分类号： G03F3/08 ,  G06K15/00 ,  G06K9/00 ,  H04N1/40

CPC分类号： H04N1/6033

摘要： Provided is a method for enabling accurate and consistent imaging of selected colors within a document for various printing device configurations utilizing an automated spot color editor. The method includes determining appropriate target values for a selected color within a print job. The automated spot color editor modifies or adjusts the selected color by selecting a quality level, in the form of a color difference metric, and a maximum number of iterations, which is the maximum number of times the automated spot color editor is operated to calculate a CMYK color formula. Sample patch(es) are printed and analyzed for the selected target value and a CMYK color formula based on the color composition of the sample patch is calculated. The CMYK color formula is inserted into a spot color editing table. Through a graphical user interface, an operator may review the color formula for acceptance.

摘要翻译： 提供了一种用于使用自动专色编辑器对用于各种打印设备配置的文档内的所选颜色进行精确和一致的成像的方法。 该方法包括确定打印作业内所选颜色的适当目标值。 自动专色编辑器通过以色差度量和最大迭代次数的形式选择质量水平来修改或调整所选颜色，这是自动专色编辑器运行以计算一次的最大次数 CMYK颜色公式。 打印并分析样品贴片用于所选择的目标值，并计算基于样品贴片的颜色组成的CMYK颜色公式。 将CMYK颜色公式插入专色编辑表。 通过图形用户界面，操作员可以检查颜色公式以进行验收。

公开(公告)号：US07522313B2

公开(公告)日：2009-04-21

申请号：US10997316

申请日：2004-11-23

申请人： Edul N. Dalal ,  D. Rene Rasmussen ,  Peter A. Crean

发明人： Edul N. Dalal ,  D. Rene Rasmussen ,  Peter A. Crean

IPC分类号： H04N1/40

CPC分类号： H04N1/58

摘要： This invention relates to a method and apparatus for implementing a trapping operation on a digital image during image processing. Some embodiments of the present invention provide an intelligent trapping process to compensate for registration errors or halo effect errors by an imaging device. At various times, a set of customized trapping parameters may be determined for the device based on its actual or estimated performance. The imaging device may be checked automatically on a periodic basis, in response to an event, or upon request. The trapping parameters may be unidirectional and may vary temporally or spatially. The imaging device can then print images based on its customized set of trapping parameters.

摘要翻译： 本发明涉及一种用于在图像处理期间对数字图像进行捕获操作的方法和装置。 本发明的一些实施例提供智能捕获过程以补偿成像装置的配准误差或光晕效应误差。 在不同时间，可以基于其实际或估计的性能来为装置确定一组定制的捕获参数。 可以根据事件或者根据要求周期性地自动检查成像装置。 捕获参数可以是单向的，并且可以在时间上或空间上变化。 然后，成像装置可以基于其定制的捕获参数集来打印图像。

公开(公告)号：US20080137111A1

公开(公告)日：2008-06-12

申请号：US11636901

申请日：2006-12-11

申请人： Martin E. Banton ,  Mark S. Jackson ,  Norman W. Zeck ,  Peter A. Crean

发明人： Martin E. Banton ,  Mark S. Jackson ,  Norman W. Zeck ,  Peter A. Crean

IPC分类号： H04N1/60

CPC分类号： H04N1/603

摘要： A printing system capable of binding a modified image data to an individual print engine in a multiple print engine system. The system includes an image processor such as a digital front end, a set of transformations, and a configuration of printers. The system can also include a scanner that scans a test image so that this image binding process can be repeated. Furthermore, the transformation binding can also take place in real time.

摘要翻译： 一种能够将经修改的图像数据绑定到多重打印引擎系统中的单独打印引擎的打印系统。 该系统包括图像处理器，例如数字前端，一组转换和打印机的配置。 系统还可以包括扫描测试图像的扫描仪，以便可以重复该图像绑定过程。 此外，转换绑定也可以实时发生。

公开(公告)号：US07307752B1

公开(公告)日：2007-12-11

申请号：US09566291

申请日：2000-05-05

申请人： Lingappa K. Mestha ,  Peter A. Crean ,  Martin S. Maltz ,  Robert J. Rolleston ,  Yao Rong Wang ,  Eric Jackson ,  Thyagarajan Balasubramanian

发明人： Lingappa K. Mestha ,  Peter A. Crean ,  Martin S. Maltz ,  Robert J. Rolleston ,  Yao Rong Wang ,  Eric Jackson ,  Thyagarajan Balasubramanian

IPC分类号： G06F15/00 ,  H04N1/46 ,  G03F3/08

CPC分类号： G06F15/00 ,  H04N1/4078 ,  H04N1/6027 ,  H04N1/6033

摘要： A color marking device including a control system for calibration of the device based upon dynamic color balance control of an output image. The system comprises a front end converter for converting an input signal representative of a target image comprising a preselected color into a device-dependent control signal in accordance with a device TRC, a color marking device for outputting an output image in response to the control signal, a sensor for measuring a parameter from the output image representative of a color of the output image, and, a point-wise controller for comparing the parameter with a corresponding parameter from the target image and constructing adjusted controlled points for the device TRC when the measured parameter and the corresponding parameter vary by a preselected value, a color balance controller for constructing an adjusted device TRC from the controlled points, whereby subsequently generated output images are output with the adjusted device TRC and, more accurately represent target input images.

摘要翻译： 一种彩色标记装置，包括基于输出图像的动态色彩平衡控制来校准装置的控制系统。 该系统包括：前端转换器，用于根据设备TRC将表示包括预选颜色的目标图像的输入信号转换成依赖于设备的控制信号;响应于控制信号输出输出图像的颜色标记装置 ，用于从表示输出图像的颜色的输出图像中测量参数的传感器，以及用于将参数与来自目标图像的相应参数进行比较的逐点控制器，并且当所述设备TRC的调整的控制点在 测量参数和相应的参数由预选值变化，用于从受控点构建调整的设备TRC的色平衡控制器，由此随后生成的输出图像被调整的设备TRC输出，并且更精确地表示目标输入图像。

公开(公告)号：US06744531B1

公开(公告)日：2004-06-01

申请号：US09221996

申请日：1998-12-29

申请人： Lingappa K. Mestha ,  Eric Jackson ,  Yao Rong Wang ,  Martin E. Banton ,  Peter A. Crean ,  Steven J. Harrington ,  Edward J. Solcz

发明人： Lingappa K. Mestha ,  Eric Jackson ,  Yao Rong Wang ,  Martin E. Banton ,  Peter A. Crean ,  Steven J. Harrington ,  Edward J. Solcz

IPC分类号： G06F1500

CPC分类号： H04N1/6022

摘要： An apparatus and method that provide consistent output across a plurality of different hard copy output devices which may be included in a system comprising an image data source and a hard copy output device. The image data source supplies image data to a printable image data adjusting apparatus. The image data supplied may be in a device-dependent color space or a device-independent color space. If the image data is in a device-dependent color space, the printable image data adjusting apparatus first converts the image data into device-independent image data and stores it in memory as target image data. If the image data is already device-independent image data, the image data are simply stored in the memory of the printable image data adjusting apparatus as target image data. The printable image data adjusting apparatus then uses the target image data to generate printable image data. The hard copy output device uses the printable image data to generate a hard copy image. The hard copy image is then passed within the optical field of a sensor that detects device-independent image data values of the hard copy image. The detected device-independent image data values are then compared against the target image data to generate color adjustment factors. The color adjustment factors are then used to produce a hard copy image having detected device-independent image data values that more closely represent the target image data. The apparatus and method may be implemented in real-time with or without human intervention.

摘要翻译： 提供跨多个不同硬拷贝输出设备的一致输出的装置和方法，其可包括在包括图像数据源和硬拷贝输出设备的系统中。 图像数据源将图像数据提供给可打印图像数据调整装置。 所提供的图像数据可以在依赖于设备的色彩空间或与设备无关的色彩空间中。 如果图像数据处于依赖于设备的色彩空间中，则可打印图像数据调整装置首先将图像数据转换为与设备无关的图像数据，并将其存储在存储器中作为目标图像数据。 如果图像数据已经是与设备无关的图像数据，则将图像数据简单地存储在可打印图像数据调整装置的存储器中作为目标图像数据。 然后，可打印图像数据调整装置使用目标图像数据来生成可打印的图像数据。 硬拷贝输出设备使用可打印的图像数据来生成硬拷贝图像。 然后在检测硬拷贝图像的设备无关图像数据值的传感器的光学场内传递硬拷贝图像。 然后将检测到的与设备无关的图像数据值与目标图像数据进行比较以产生颜色调整因子。 然后使用颜色调节因子来产生具有更接近地表示目标图像数据的检测到的与设备无关的图像数据值的硬拷贝图像。 该装置和方法可以在有或没有人为干预的情况下实时地实现。