公开(公告)号：EP1119187A1

公开(公告)日：2001-07-25

申请号：EP01300417.1

申请日：2001-01-18

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Dianat, Sohail A.

IPC分类号： H04N1/60

CPC分类号： H04N1/6033 ,  G01J2003/466

摘要： Spectrally matched color outputs are obtained using data from a real-time sensor, such as, for example, a spectrophotometer on the output trays of a marking devices to determine the output spectra of a reproduced image. The output spectra of the reproduced image is compared with an output spectra of a target spectra stored in a computer memory to produce a mapping table that will spectrally match all subsequently reproduced color images in real-time. Thus, output color spectra are matched between displays and prints, scans and prints, scans and displays, or copies and prints.

摘要翻译： 使用来自实时传感器的数据（例如，标记装置的输出盘上的分光光度计）获得光谱匹配的颜色输出，以确定再现图像的输出光谱。 将再现图像的输出光谱与存储在计算机存储器中的目标光谱的输出光谱进行比较，以产生将实时地与所有随后再现的彩色图像频谱匹配的映射表。 因此，输出色谱在显示和打印，扫描和打印，扫描和显示或复印和打印之间匹配。

公开(公告)号：EP1109399A2

公开(公告)日：2001-06-20

申请号：EP00311203.4

申请日：2000-12-14

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Furst, Michael R. ,  Hubble III, Fred F.

IPC分类号： H04N1/60

CPC分类号： H04N1/6052

摘要： A device independent color control server and control methods provide color consistency services and improve consistent color document appearance between any number of connected color image forming devices (140) and/or color display monitors (110) on a distributed network.

摘要翻译： 独立于设备的颜色控制服务器和控制方法提供了颜色一致性服务，并提高了分布式网络上任意数量的连接的彩色图像形成设备（140）和/或彩色显示监视器（110）之间的一致的彩色文档外观。

公开(公告)号：EP0828199A2

公开(公告)日：1998-03-11

申请号：EP97306984.2

申请日：1997-09-09

申请人： XEROX CORPORATION

发明人： Mestha, Lingappa K.

IPC分类号： G03G15/00

CPC分类号： G03G15/5037 ,  G03G2215/00037 ,  G03G2215/00054

摘要： An electrostatographic printing machine having an imaging member, operating components, and a control system including a sensor, compensator, and look up table (110) for adjusting the operating components. The sensor signal (V h , V l ) provides a suitable indication of an operating component condition such as a developer unit or a photoreceptor charging device. A compensator responds to the sensor signal to provide a non-linear adjustment signal and the look up table (110) converts the non-linear adjustment signal to a linear adjustment signal. A device such as a charging corotron or developer power supply responds to the linear adjustment signal to appropriately adjust the operating component.

摘要翻译： 一种具有成像构件，操作部件和包括用于调节操作部件的传感器，补偿器和查找表（110）的控制系统的静电印刷机。 传感器信号（Vh，V1）提供诸如显影剂单元或感光体充电装置之类的操作部件条件的适当指示。 补偿器响应传感器信号以提供非线性调整信号，并且查找表（110）将非线性调整信号转换为线性调整信号。 诸如充电科罗龙或显影剂电源的装置响应于线性调整信号以适当地调整操作部件。

公开(公告)号：EP1109399B1

公开(公告)日：2007-11-21

申请号：EP00311203.4

申请日：2000-12-14

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Furst, Michael R. ,  Hubble III, Fred F.

IPC分类号： H04N1/60

CPC分类号： H04N1/6052

公开(公告)号：EP1152598A2

公开(公告)日：2001-11-07

申请号：EP01110775.2

申请日：2001-05-03

申请人： Xerox Corporation

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

IPC分类号： H04N1/60

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： 一种颜色标记装置，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为依赖于设备的控制信号，用于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对应参数进行比较并构建用于设备TRC的调整后的控制点的逐点控制器， 测量参数和相应的参数根据预选值变化，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：EP1104175A2

公开(公告)日：2001-05-30

申请号：EP00125932.4

申请日：2000-11-27

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Ramirez, Olga Y.

IPC分类号： H04N1/60

CPC分类号： H04N1/6033

摘要： A method and apparatus for on-line predicting an analytical model of a dynamically varying color reproduction device comprises recursively executing a parameter adjustment algorithm for updating the parameters to the analytical model. Parameter adjustment is computed based upon a measured error signal detected between a sensed signal detected from actual device output and with an insitu sensor, and the analytical model output. The adjustment algorithm is recursively executed until parameter convergence effects a minimal error measurement, at which time the updated parameters are identified as accurate within the selected parametric model.

摘要翻译： 用于在线预测动态变化的色彩再现设备的分析模型的方法和设备包括递归地执行参数调整算法以将参数更新到分析模型。 基于在从实际装置输出检测到的感测信号与原位传感器之间检测到的测量误差信号和分析模型输出来计算参数调整。 递归执行调整算法，直到参数收敛实现最小误差测量，此时更新的参数在所选参数模型内被识别为准确。

公开(公告)号：EP0844785A2

公开(公告)日：1998-05-27

申请号：EP97309456.8

申请日：1997-11-24

申请人： XEROX CORPORATION

发明人： Mestha, Lingappa K. ,  Mantell, David A.

IPC分类号： H04N1/407

CPC分类号： H04N1/4078

摘要： An imaging machine operating components include an input scanner (10) for providing images on copy sheets and a copy sheet path (88) connected to the input scanner (10). The imaging machine is calibrated by providing an image on a first copy sheet and conveying the first copy sheet to the input scanner by means of the copy path (88). The image on the first copy sheet is scanned and provides the image on a second copy sheet. The image on the second copy sheet is sensed and compared to a reference image to calibrate the imaging machine. A controller (12) is operative, in response to the sensing, to activate a diverter (100) to divert imaged sheet between a normal output tray (78) and the copy sheet path (88).

摘要翻译： 成像机操作部件包括用于在复印纸上提供图像的输入扫描器（10）和连接到输入扫描器（10）的复印纸路径（88）。 通过在第一复印纸上提供图像并通过复制路径（88）将第一复印纸传送到输入扫描仪来校准成像机。 扫描第一份复印纸上的图像，并将图像提供在第二张复印纸上。 检测第二份复印纸上的图像并将其与参考图像进行比较以校准成像机。 控制器（12）响应于感测操作，以激活转向器（100）以将成像的片材在正常输出托盘（78）和复印纸张路径（88）之间转移。

公开(公告)号：EP1104175A3

公开(公告)日：2003-12-03

申请号：EP00125932.4

申请日：2000-11-27

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Ramirez, Olga Y.

IPC分类号： H04N1/60

CPC分类号： H04N1/6033

摘要： A method and apparatus for on-line predicting an analytical model of a dynamically varying color reproduction device comprises recursively executing a parameter adjustment algorithm for updating the parameters to the analytical model. Parameter adjustment is computed based upon a measured error signal detected between a sensed signal detected from actual device output and with an insitu sensor, and the analytical model output. The adjustment algorithm is recursively executed until parameter convergence effects a minimal error measurement, at which time the updated parameters are identified as accurate within the selected parametric model.

公开(公告)号：EP1109399A3

公开(公告)日：2002-08-07

申请号：EP00311203.4

申请日：2000-12-14

申请人： Xerox Corporation

发明人： Mestha, Lingappa K. ,  Furst, Michael R. ,  Hubble III, Fred F.

IPC分类号： H04N1/60

CPC分类号： H04N1/6052

摘要： A device independent color control server and control methods provide color consistency services and improve consistent color document appearance between any number of connected color image forming devices (140) and/or color display monitors (110) on a distributed network.

公开(公告)号：EP1026893A3

公开(公告)日：2001-11-21

申请号：EP00300306.8

申请日：2000-01-17

申请人： Xerox Corporation

发明人： Duke, Charles B. ,  Mestha, Lingappa K. ,  Banton, Martin E. ,  Thieret, Tracy E. ,  Solcz, Edward J.

IPC分类号： H04N1/60

CPC分类号： H04N1/6097 ,  H04N1/6011 ,  H04N1/6033

摘要： A method and apparatus for using feedback and feedforward in generating predictable reproducible and pleasing images in a distributed digital image processing system (1000) monitors presentation images and provides feedback to a customer that assembled the original image. The originating customer can view the image as it appears on a remote output device (600-800) and/or adjust the image so that the presentation image will match the image appearing on the image originating device (100). The system can also automatically adjust the digital images as they are processed by the system to insure that a remotely outputted presentation image matches the original image on the image originating device or on a local output device proximal with the image originating device.