公开(公告)号：US08351081B2

公开(公告)日：2013-01-08

申请号：US12839620

申请日：2010-07-20

申请人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

发明人： Jack Gaynor Elliot ,  Lalit Keshav Mestha ,  Peter Paul ,  David C. Craig ,  Brian Robert Conrow ,  Christine Ann Steurrys

IPC分类号： G06F15/00

CPC分类号： H04N1/6033 ,  H04N1/6036

摘要： What is disclosed is a novel system and method for xerographic Dmax control based upon measurements made on the printed paper using an inline spectrophotometer (ILS) or similar device. The disclosed method is based upon directly measuring the color to actuator sensitivity. Each of the separations is controlled independently using an actuator specific to that color separation. The present method is effective at controlling the color of the solid primaries. The fact that the vector of change is highly correlated with solid color variation seen in the field suggests that the teachings hereof effectively increase the solid color stability. Increased solid color stability increases the color stability throughout the printer gamut and the stability of the gamut boundaries, which increases the robustness of gamut mapping algorithms. Advantageously, the present method can be combined with existing ILS-based maintenance architectures.

公开(公告)号：US08264704B2

公开(公告)日：2012-09-11

申请号：US11897212

申请日：2007-08-29

申请人： Mark Sennett Jackson ,  Peter Paul

发明人： Mark Sennett Jackson ,  Peter Paul

IPC分类号： G06K15/00

CPC分类号： H04N1/00002 ,  H04N1/00005 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00087 ,  H04N1/00092

摘要： A method of automatically monitoring and controlling print quality in digital printing with a first and second scanner capturing an image from different locations in the printing engine. In an exemplary embodiment, a first scanner captures an image from a surface internal to the print engine while an external scanner captures an image from a printed sheet. If the external print image quality is acceptable, the internally captured image is saved as a reference. The system periodically compares internally captured images with the saved reference and provides automatic image correction if the variation from the reference is within a correctable range. If the image variation is not within a correctable range, the system runs a new test print and creates a new reference image.

摘要翻译： 一种利用第一和第二扫描仪自动监视和控制数字打印中的打印质量的方法，其从打印引擎中的不同位置捕获图像。 在示例性实施例中，当外部扫描仪从打印的纸张捕获图像时，第一扫描仪从打印引擎内部的表面捕获图像。 如果外部打印图像质量可以接受，内部拍摄的图像将被保存为参考。 系统周期性地将内部捕获的图像与保存的参考值进行比较，并且如果参考的变化在可校正的范围内，则可以进行自动图像校正。 如果图像变化不在可校正范围内，系统将运行新的测试打印并创建新的参考图像。

公开(公告)号：US20120200682A1

公开(公告)日：2012-08-09

申请号：US13023310

申请日：2011-02-08

申请人： Lalit Keshav Mestha ,  Beilei Xu ,  Peter Paul

发明人： Lalit Keshav Mestha ,  Beilei Xu ,  Peter Paul

IPC分类号： H04N7/18 ,  G06K9/62

CPC分类号： G06K9/0063 ,  G06K2009/00644

摘要： What is disclosed is a novel system and method for simultaneous spectral decomposition suitable for image object identification and categorization for scenes and objects under analysis. The present system captures different spectral planes simultaneously using a Fabry-Perot multi-filter grid each tuned to a specific wavelength. A method for classifying pixels in the captured image is provided. The present system and method finds its uses in a wide array of applications such as, for example, occupancy detection in a transportation management system and in medical imaging and diagnosis for healthcare management. The teachings hereof further find their uses in other applications where there is a need to capture a two dimensional view of a scene and decompose the scene into its spectral bands such that objects in the image can be appropriately identified.

摘要翻译： 所公开的是一种用于同时频谱分解的新型系统和方法，适用于分析场景和物体的图像对象识别和分类。 本系统使用每个调谐到特定波长的法布里 - 珀罗多滤波器网格同时捕获不同的频谱平面。 提供了一种用于对拍摄图像中的像素进行分类的方法。 本系统和方法在广泛的应用中发现其用途，例如在运输管理系统中的占用检测以及用于医疗管理的医学成像和诊​​断。 其中的教导进一步发现它们在其他应用中的用途，其中需要捕获场景的二维视图并将场景分解为其光谱带，使得可以适当地识别图像中的对象。

公开(公告)号：US20120148272A1

公开(公告)日：2012-06-14

申请号：US12966211

申请日：2010-12-13

申请人： Palghat S. Ramesh ,  Peter Paul

发明人： Palghat S. Ramesh ,  Peter Paul

IPC分类号： G03G15/02

CPC分类号： G03G15/5058 ,  G03G15/0189 ,  G03G15/5062

摘要： A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1x signals from sensors associated with the marking modules; and processing the image data in relation to the 1x signals to form banding profiles for multiple marking modules. Alternatively, the method may include: processing image data in relation to 1x signals to form banding profiles for multiple marking modules; determining amplitudes in multiple banding profiles exceeds a threshold to identify dominant banding profiles; and processing dominant banding profiles to form dominant banding signatures. Alternatively, the method may include: initiating a correction stage; obtaining 1x signals from sensors associated with dominant marking modules; and periodically processing dominant banding signatures and 1x signals to determine a banding compensation value.

摘要翻译： 用于补偿标记平台中的条带的方法包括：启动校准阶段; 在标记模块之间的最低基频的多个间隔上标记测试图案; 从传感器获取测试图案的图像数据; 从与标记模块相关的传感器获取1x信号; 并处理与1x信号相关的图像数据，以形成多个标记模块的条带轮廓。 或者，该方法可以包括：处理与1x信号相关的图像数据，以形成多个标记模块的条带简档; 确定多个条带轮廓中的幅度超过阈值以识别主要条带轮廓; 并处理主要条带轮廓以形成主要条带签名。 或者，该方法可以包括：启动校正阶段; 从与主要标记模块相关的传感器获取1x信号; 并且周期性地处理主要条带签名和1x信号以确定条带补偿值。

公开(公告)号：US08194262B2

公开(公告)日：2012-06-05

申请号：US11363378

申请日：2006-02-27

申请人： David G. Anderson ,  Peter Paul

发明人： David G. Anderson ,  Peter Paul

IPC分类号： G06K15/00 ,  H04N1/407

CPC分类号： H04N1/4055 ,  G03G15/5062 ,  G03G15/55 ,  G03G2215/00021 ,  H04N1/4015

摘要： A method of printing includes, on an ongoing basis, determining a print defect state of a printing system, selecting a screen which has a halftone print parameter which masks a detected print defect, such as one or more of a screen frequency parameter, a screen angle parameter, and a dot growth parameter. The method further includes printing images according to the selected halftone print parameter. Alternatively, where the printing system includes more than one marking engine, the method includes selecting a marking engine according to the determined defect states of each of the marking engines.

摘要翻译： 打印方法在持续的基础上，确定打印系统的打印缺陷状态，选择具有屏蔽检测到的打印缺陷的半色调打印参数的屏幕，诸如屏幕频率参数，屏幕中的一个或多个 角度参数和点生长参数。 该方法还包括根据所选择的半色调打印参数打印图像。 或者，在打印系统包括多于一个的打标引擎的情况下，该方法包括根据确定的每个标记引擎的缺陷状态选择标记引擎。

公开(公告)号：US08155548B2

公开(公告)日：2012-04-10

申请号：US12176736

申请日：2008-07-21

申请人： Joseph C. Sheflin ,  Jack T. Lestrange ,  Peter Paul ,  Aaron M. Burry

发明人： Joseph C. Sheflin ,  Jack T. Lestrange ,  Peter Paul ,  Aaron M. Burry

IPC分类号： G03G15/00

CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/0643

摘要： Methods and systems are provided for controlling a printing device in the presence of reload defects. According to a first embodiment, a controller is provided to manage the printing of scheduled control patches immediately after an image of a print job. Accordingly to a second embodiment, a controller is configured to manage the printing of an image or a print job immediately after a control patch.

摘要翻译： 提供了用于在存在重新加载缺陷的情况下控制打印装置的方法和系统。 根据第一实施例，提供控制器，用于在打印作业的图像之后立即管理调度的控制片的打印。 因此，根据第二实施例，控制器被配置为在控制补丁之后立即管理图像或打印作业的打印。

公开(公告)号：US07952761B2

公开(公告)日：2011-05-31

申请号：US12277594

申请日：2008-11-25

申请人： Peter Paul ,  Claude S. Fillion

发明人： Peter Paul ,  Claude S. Fillion

IPC分类号： H04N1/409

CPC分类号： H04N1/6033 ,  H04N1/58 ,  H04N1/6041

摘要： Systems and methods are provided for compensating for streak defects in images formed by an image forming device, such as a digital printer. The methods include using a spatially varying printer model and run time updates to generate spatially varying tone reproduction curves (STRC actuation) in an iterative control system for improving streak correction in a digital printing machine. Streaks are rapidly learned and eliminated at cycle-up and tracked and eliminated during print run time using STRC actuation.

摘要翻译： 提供了系统和方法来补偿由诸如数字打印机的图像形成装置形成的图像中的条纹缺陷。 这些方法包括在迭代控制系统中使用空间变化的打印机模型和运行时间更新来产生空间变化的色调再现曲线（STRC致动），以改善数字印刷机中的条纹校正。 快速学习和消除条纹，并在使用STRC驱动的打印运行时间内跟踪和消除。

公开(公告)号：US20090273813A1

公开(公告)日：2009-11-05

申请号：US12112618

申请日：2008-04-30

申请人： R. Enrique Viturro ,  Peter Paul

发明人： R. Enrique Viturro ,  Peter Paul

IPC分类号： H04N1/409

CPC分类号： H04N1/4015 ,  G03G15/5041 ,  G03G2215/00042 ,  H04N1/12 ,  H04N1/295 ,  H04N1/4076

摘要： Systems and methods are provided for compensating for streak defects in images formed by an image forming device, such as a digital printer. The systems and methods include using both modulation of a raster output scanner (ROS actuation) and spatially varying tone reproduction curve (STRC actuation) in a common control system for improving streak correction. Low spatial frequency large amplitude streak defects are corrected using ROS actuation and high spatial frequency streak defects, as well as any residual low frequency defects, are corrected using STRC actuation.

摘要翻译： 提供了系统和方法来补偿由诸如数字打印机的图像形成装置形成的图像中的条纹缺陷。 该系统和方法包括在公共控制系统中使用光栅输出扫描器（ROS致动）的调制和空间变化色调再现曲线（STRC致动），以改善条纹校正。 使用ROS驱动校正低空间频率大幅度条纹缺陷，并且使用STRC致动校正高空间频率条纹缺陷以及任何残留的低频缺陷。

公开(公告)号：US20090231382A1

公开(公告)日：2009-09-17

申请号：US12471924

申请日：2009-05-26

申请人： Howard A. Mizes ,  Peter Paul ,  Stanley J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

发明人： Howard A. Mizes ,  Peter Paul ,  Stanley J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

IPC分类号： B41J29/393

CPC分类号： B41J2/155

摘要： Systems and methods are provided for detecting process direction registration errors in a printer. The errors are detected by analyzing a metric of a dash minimum response obtained from a test pattern. The test pattern contains dashes. At least one dash is shifted in the process direction in relation to another dash.

摘要翻译： 提供了用于检测打印机中的处理方向注册错误的系统和方法。 通过分析从测试模式获得的破折号最小响应的度量来检测错误。 测试模式包含破折号。 至少一个破折号相对于另一个破折号在过程方向上移动。

公开(公告)号：US20090059266A1

公开(公告)日：2009-03-05

申请号：US11897212

申请日：2007-08-29

申请人： Mark Sennett Jackson ,  Peter Paul

发明人： Mark Sennett Jackson ,  Peter Paul

IPC分类号： G06F15/00

CPC分类号： H04N1/00002 ,  H04N1/00005 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00087 ,  H04N1/00092

摘要： A method of automatically monitoring and controlling print quality in digital printing with a first and second scanner capturing an image from different locations in the printing engine. In an exemplary embodiment, a first scanner captures an image from a surface internal to the print engine while an external scanner captures an image from a printed sheet. If the external print image quality is acceptable, the internally captured image is saved as a reference. The system periodically compares internally captured images with the saved reference and provides automatic image correction if the variation from the reference is within a correctable range. If the image variation is not within a correctable range, the system runs a new test print and creates a new reference image.

摘要翻译： 一种利用第一和第二扫描仪自动监视和控制数字打印中的打印质量的方法，其从打印引擎中的不同位置捕获图像。 在示例性实施例中，当外部扫描仪从打印的纸张捕获图像时，第一扫描仪从打印引擎内部的表面捕获图像。 如果外部打印图像质量可以接受，内部拍摄的图像将被保存为参考。 系统周期性地将内部捕获的图像与保存的参考值进行比较，并且如果参考的变化在可校正的范围内，则可以进行自动图像校正。 如果图像变化不在可校正范围内，系统将运行新的测试打印并创建新的参考图像。