公开(公告)号：US07184173B2

公开(公告)日：2007-02-27

申请号：US10185807

申请日：2002-06-27

Applicant: Chia-Lin Chu ,  Gokalp Bayramoglu ,  Henry M. D'Souza ,  Tam Q. Duong

Inventor： Chia-Lin Chu ,  Gokalp Bayramoglu ,  Henry M. D'Souza ,  Tam Q. Duong

IPC: G06K15/00

CPC classification number: H04N1/6097 ,  H04N1/6033

Abstract: A system for characterizing color is provided. The system includes a color patch identification system that receives image data, such as image data of a color wedge, and generates color patch data, such as for two or more patches that make up the color wedge. A color patch characterization system receives the color patch data and generates color density data, such as by calculating the average color density of each color patch.

Abstract translation: 提供了一种表征颜色的系统。 该系统包括接收诸如彩色楔形图像数据的图像数据的色标识别系统，并且生成色块数据，例如构成色楔的两个或更多个补丁。 色标表征系统接收色标数据并产生色浓度数据，例如通过计算每个色标的平均色密度。

公开(公告)号：US07184172B2

公开(公告)日：2007-02-27

申请号：US10184468

申请日：2002-06-27

Applicant: Chia-Lin Chu ,  Gokalp Bayramoglu ,  Henry M. D'Souza ,  Tam Q. Duong

Inventor： Chia-Lin Chu ,  Gokalp Bayramoglu ,  Henry M. D'Souza ,  Tam Q. Duong

IPC: G06K15/00

CPC classification number: H04N1/6097 ,  H04N1/6033

Abstract: A method for controlling printer color is provided. The method includes receiving cartridge color density data, such as from analysis of a test patch printed by the cartridge, and reference cartridge data, such as from analysis of a test patch printed and measured in accordance with a color standard. The color density data of the cartridge test patch is then mapped to the color density data of the reference cartridge test patch to generate mapped color density data, such as a look-up table that provides a dot activation for the cartridge that generates the same color density for a known dot activation for the reference cartridge. The mapped color density data is then used to control color density for printing a set of image data.

Abstract translation: 提供了一种用于控制打印机颜色的方法。 该方法包括接收墨盒颜色浓度数据，例如从分析由墨盒打印的测试补丁和参考墨盒数据，例如从根据颜色标准印刷和测量的测试贴片的分析。 然后将盒式测试贴片的色浓度数据映射到参考盒测试贴片的色浓度数据，以生成映射颜色浓度数据，例如为产生相同颜色的盒提供点激活的查找表 用于参考盒的已知点激活的密度。 然后使用映射的颜色浓度数据来控制用于打印一组图像数据的颜色浓度。

公开(公告)号：US5967049A

公开(公告)日：1999-10-19

申请号：US997288

申请日：1997-12-23

Applicant: John C. Seymour ,  Chia-Lin Chu

Inventor： John C. Seymour ,  Chia-Lin Chu

IPC: B41F31/02 ,  B41F31/00 ,  B41F31/04 ,  B41F31/14

CPC classification number: B41F31/045 ,  B41F31/00

Abstract: A method is disclosed for correction of the effects of ink back-flow and lateral flow in the inking system of a web-offset printing press. A plate coverage equation dependent on plate coverage is used to compensate for ink back-flow into the ink reservoir. An ink key distribution function is utilized to correct for the blurring effects of lateral ink spread caused by the action of vibrator rollers. A correction is also made for the ink saturation effect. The method is applicable to an ink key preset system.

Abstract translation: 公开了一种用于校正卷筒纸胶版印刷机的上墨系统中墨回流和侧向流动的影响的方法。 使用取决于板覆盖度的板覆盖方程来补偿油墨回流到油墨储存器中。 使用墨水键分布功能来校正由振动器辊的作用引起的侧向墨水扩散的模糊效果。 还对墨饱和效果进行了修正。 该方法适用于墨水键预设系统。

公开(公告)号：US5689425A

公开(公告)日：1997-11-18

申请号：US429910

申请日：1995-04-27

Applicant: Jeffrey W. Sainio ,  John C. Seymour ,  Jeffrey Paul Rappette ,  Chia-Lin Chu

Inventor： Jeffrey W. Sainio ,  John C. Seymour ,  Jeffrey Paul Rappette ,  Chia-Lin Chu

IPC: B41F5/16 ,  B41F13/12 ,  B41F33/00 ,  B41F33/14 ,  G01N21/88 ,  G01N21/89 ,  G01N21/892 ,  G01N21/93 ,  G06T1/00 ,  G06T3/00 ,  G06F19/00

CPC classification number: G06T3/4015 ,  B41F33/0036 ,  G06K9/036

Abstract: A control system is disclosed for controlling misregistration between the colors of an image printed on a web. The system includes an imaging device such as a camera or group of cameras, a processor, and image conversion circuits coupled to the processor. The system detects print color misregistration based upon the signals produced by the imaging device as a result of scanning the printed image. The conversion circuits convert the signals to signals usable by the processor to determine the color densities of the various colors within the image. These on-press color densities are compared with reference color densities stored in a memory of the processor, wherein the reference color densities may be generated from a source such as the printing plates used to print the image for which misregistration is being monitored. Based upon the phase correlation of the on-press images with the reference images, a processor operates to produce registration offset values between the printed colors and controls a print controller which adjusts the print units such that the colors of the printed image are placed into registration.

Abstract translation: 公开了一种控制系统，用于控制印在网上的图像的颜色之间的对准。 该系统包括成像设备，例如相机或摄像机组，处理器和耦合到处理器的图像转换电路。 该系统由于扫描打印图像而基于由成像装置产生的信号来检测打印颜色重合失调。 转换电路将信号转换成处理器可用的信号，以确定图像内的各种颜色的颜色浓度。 将这些印刷色度与存储在处理器的存储器中的参考颜色密度进行比较，其中参考颜色密度可以从诸如用于打印正在监控重新对准的图像的印刷版的源产生。 基于印刷图像与参考图像的相位相关性，处理器操作以产生印刷颜色之间的对准偏移值，并且控制打印控制器，其调整打印单元，使得打印图像的颜色被放置成对准 。

公开(公告)号：US06318260B1

公开(公告)日：2001-11-20

申请号：US09368774

申请日：1999-08-05

Applicant: Chia-Lin Chu ,  Amit Sharma ,  John C. Seymour

Inventor： Chia-Lin Chu ,  Amit Sharma ,  John C. Seymour

IPC: B41F3102

CPC classification number: B41F31/00 ,  B41F31/045 ,  B41F33/0027

Abstract: A method is disclosed for determining ink key control settings for a plurality of ink keys in a printing press. Each of the ink keys controls the amount of ink supplied to a roller and then to a respective ink key zone on a substrate to print an image. A press model relates image requirements to ink key control settings. The press model includes a gain and a respective offset associated with each ink key. The offset represents the amount a value represented by the ink key control setting varies from the actual ink key opening. The drift in the respective offsets of the ink keys is tracked by comparing control settings predicted by the press model with final control settings after a press job has been satisfactorily completed.

Abstract translation: 公开了一种用于确定印刷机中的多个墨水键的墨键控制设置的方法。 每个墨键控制供应到辊的墨水量，然后控制到基板上的相应墨键区域以打印图像。 印刷机模型将图像要求与墨水键控制设置相关联。 印刷机模型包括与每个墨水键相关联的增益和相应的偏移。 偏移量表示由墨水键控制设置表示的值与实际墨水键开度的差异。 在按压作业已经令人满意地完成之后，通过将按压模型预测的控制设置与最终控制设置进行比较来跟踪油墨键的相应偏移中的漂移。

公开(公告)号：US5724259A

公开(公告)日：1998-03-03

申请号：US434928

申请日：1995-05-04

Applicant: John C. Seymour ,  Jeffrey P. Rappette ,  Frank N. Vroman ,  Chia-Lin Chu ,  Bradly S. Moersfelder ,  Michael A. Gill ,  Karl R. Voss

Inventor： John C. Seymour ,  Jeffrey P. Rappette ,  Frank N. Vroman ,  Chia-Lin Chu ,  Bradly S. Moersfelder ,  Michael A. Gill ,  Karl R. Voss

IPC: B41F31/02 ,  B41F33/00 ,  B41F33/14 ,  G01J3/10 ,  G01J3/46 ,  G01J3/51 ,  G06T1/00 ,  H04N1/46 ,  G01N21/47 ,  G01N21/88 ,  G06F15/00

CPC classification number: G01J3/02 ,  B41F33/0036 ,  G01J3/10 ,  G01J3/51 ,  G01J3/513 ,  B41P2233/51

Abstract: A method for monitoring color of a printed image printed on a substrate, the method comprising the steps of: positioning a camera assembly to receive light reflected from the printed image on the substrate, the camera assembly including a structure for producing a signal; transmitting the signal from the camera assembly to a computer; and processing the signal in the computer to correct for the effects of scattered light reflected from the printed image.

Abstract translation: 一种用于监测印刷在基板上的印刷图像的颜色的方法，所述方法包括以下步骤：定位相机组件以接收从所述基板上的所述印刷图像反射的光，所述相机组件包括用于产生信号的结构; 将信号从相机组件传输到计算机; 并处理计算机中的信号以校正从打印图像反射的散射光的影响。