公开(公告)号：US07969624B2

公开(公告)日：2011-06-28

申请号：US11636747

申请日：2006-12-11

Applicant: Lalit Keshav Mestha ,  Yao Rong Wang ,  Zhigang Fan ,  Alvaro Enrique Gil

Inventor： Lalit Keshav Mestha ,  Yao Rong Wang ,  Zhigang Fan ,  Alvaro Enrique Gil

IPC: H04N1/46 ,  H04N1/00

CPC classification number: H04N1/6033 ,  H04N1/6097

Abstract: Disclosed herein are optimal or near optimal algorithms implemented as software tools that will allow the user/machine to identify optimal media out of the job set automatically. There are at least two main process steps to the exemplary embodiment. The first step involves the off-line characterization of the printing/image rendering system that will be used to extract the principal basis vectors from the experimental data. The second step involves the run-time mode, in which the pre-characterized basis vectors are used in conjunction with an optimal algorithm that will identify the media for re-calibration/re-characterization from the group of media set that the customer is interested to print. The optimal algorithm performs the combinatorial search every time the customer wishes to select the media. Once the optimal media is selected, the customer or the machine can print color patches (which are also optimal set) and execute the rest of the processing to reconstruct the best color management LUTs.

Abstract translation: 这里公开的是作为软件工具实现的最佳或近似最优算法，其将允许用户/机器自动地识别作业集合中的最佳媒体。 至于示例性实施例的至少两个主要处理步骤。 第一步涉及打印/图像渲染系统的离线表征，该系统将用于从实验数据中提取主基础向量。 第二步涉及运行时模式，其中预特征基本向量与最佳算法结合使用，该算法将识别媒体用于从客户感兴趣的媒体集合进行重新校准/重新表征 打印。 每当客户希望选择媒体时，最优算法执行组合搜索。 一旦选择了最佳介质，客户或机器可以打印色块（也是最佳组合），并执行其余处理以重构最佳色彩管理LUT。

公开(公告)号：US20110149313A1

公开(公告)日：2011-06-23

申请号：US12645875

申请日：2009-12-23

Applicant: Lalit Keshav Mestha ,  Yonghui Zhao ,  Yao Rong Wang

Inventor： Lalit Keshav Mestha ,  Yonghui Zhao ,  Yao Rong Wang

IPC: G06F15/00

CPC classification number: H04N1/62 ,  H04N1/6033

Abstract: What is disclosed is a novel system and method for generating a reference color difference quantity guide for spot color print applications. RCDQ values are determined for spot colors obtained from a library of spot colors. A reference color difference quantity guide is created from the spot colors and their respective RCDQ values in a manner more fully disclosed herein. Thereafter, when a user desires to render a job in a particular spot color, the associated RCDQ value for that spot color can be obtained from the reference color difference quantity guide. In various embodiments, recommendations in the form of a suggested printer to use, a media type, a halftone screen, and other meaningful assistance can be provided for selection of spot colors for a given print/copy job that are less sensitive to varying illuminations. The present RCDQ guide provides meaningful extensions in color reproduction in diverse print/copy job environments.

Abstract translation: 所公开的是用于产生用于专色印刷应用的参考色差量指南的新型系统和方法。 确定从专色库获得的专色的RCDQ值。 以这里更全面地公开的方式，从专色和它们各自的RCDQ值创建参考色差量指南。 此后，当用户期望以特定专色呈现作品时，可以从参考色差量指南获得该专色的相关RCDQ值。 在各种实施例中，可以提供建议的打印机使用形式的建议，媒体类型，半色调屏幕和其他有意义的帮助，以选择对变化的照明不太敏感的给定打印/复印作业。 目前的RCDQ指南在不同的打印/复印作业环境中提供了色彩再现的有意义的扩展。

公开(公告)号：US20110063631A1

公开(公告)日：2011-03-17

申请号：US12557994

申请日：2009-09-11

Applicant: Juan Liu ,  Haitham Hindi ,  Lalit Keshav Mestha ,  Kenneth J. Mihalyov

Inventor： Juan Liu ,  Haitham Hindi ,  Lalit Keshav Mestha ,  Kenneth J. Mihalyov

IPC: H04N1/60 ,  G03F3/08

CPC classification number: H04N1/6033 ,  H04N1/40006

Abstract: Methods and systems are presented for characterizing a printer, display or other color reproduction device in which parametric and nonparametric forward color transforms are generated to construct a forward color device transform to characterize the mapping of CMYK input data to La*b* data of the device, with the parametric transform adapted to compensate for drifting performance of the color reproduction device.

Abstract translation: 呈现用于表征打印机，显示器或其他颜色再现设备的方法和系统，其中生成参数和非参数的前向颜色变换以构建前向颜色设备变换，以表征CMYK输入数据到设备的La * b *数据的映射 ，其中参数变换适于补偿色彩再现装置的漂移性能。

公开(公告)号：US20100253960A1

公开(公告)日：2010-10-07

申请号：US12819591

申请日：2010-06-21

Applicant: Lalit Keshav Mestha ,  Sohail A. Dianat

Inventor： Lalit Keshav Mestha ,  Sohail A. Dianat

IPC: H04N1/60

CPC classification number: H04N1/603 ,  H04N1/6016

Abstract: What is provided are a novel system and method for generating a sensitivity matrix for adaptive color control in a color marking device. In one embodiment, a first and second color space is identified. A total of N intermediate components are identified. Component sensitivity matrices are calculated and a sensitivity matrix is generated using a chain rule of differentiation over each successive component sensitivity matrix. The present method facilitates calibration of dynamically varying color reproduction devices.

Abstract translation: 提供了一种用于在颜色标记装置中产生用于自适应颜色控制的灵敏度矩阵的新型系统和方法。 在一个实施例中，识别第一和第二颜色空间。 共鉴定出N个中间成分。 计算组分灵敏度矩阵，并使用每个连续分量敏感矩阵的分化链规则生成灵敏度矩阵。 本方法有助于校正动态变化的色彩再现装置。

公开(公告)号：US20100225939A1

公开(公告)日：2010-09-09

申请号：US12631069

申请日：2009-12-04

Applicant: Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  James Michael Sanchez

Inventor： Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  James Michael Sanchez

IPC: H04N1/60

CPC classification number: H04N1/603 ,  H04N1/6022

Abstract: This disclosure provides methods, apparatus and systems for generating and using color management profiles. Specifically, the color management profiles generated include K-only colorant recipes for image colors associated with a neutral axis.

Abstract translation: 本公开提供了用于生成和使用颜色管理简档的方法，装置和系统。 具体地，所生成的颜色管理简档包括用于与中性轴相关联的图像颜色的仅K着色剂配方。

公开(公告)号：US07639410B2

公开(公告)日：2009-12-29

申请号：US11636841

申请日：2006-12-11

Applicant: Yao Rong Wang ,  Lalit Keshav Mestha ,  Zhigang Fan ,  Alvaro Enrique Gil

Inventor： Yao Rong Wang ,  Lalit Keshav Mestha ,  Zhigang Fan ,  Alvaro Enrique Gil

IPC: H04N1/46 ,  G03F3/08

CPC classification number: H04N1/00002 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/0009

Abstract: The exemplary embodiment disclosed herein comprises several aspects of defining and using optimal color test patches for calibrating a printing system for various purposes (e.g., multi-media, gamut extension, drifting correction, etc.). One aspect is the creation and use of color patches where the color patches are selected optimally to result in minimum mean square error when those color patches are used to determine weights of a limited number of basis vectors that model the system (e.g., model the print engine response). A joint optimization technique is given as a method to select the optimal color test patches for calibration.

Abstract translation: 本文公开的示例性实施例包括限定和使用用于校准用于各种目的（例如，多媒体，色域扩展，漂移校正等）的打印系统的最佳颜色测试贴片的几个方面。 一个方面是色彩补丁的创建和使用，其中最佳地选择色块以产生最小均方误差，当使用这些色块来确定对系统进行建模的有限数量的基向量的权重（例如，模拟打印 发动机响应）。 给出联合优化技术作为选择用于校准的最佳颜色测试贴片的方法。

公开(公告)号：US20090299905A1

公开(公告)日：2009-12-03

申请号：US12127649

申请日：2008-05-27

Applicant: Lalit Keshav Mestha ,  Peter Stanley Fisher

Inventor： Lalit Keshav Mestha ,  Peter Stanley Fisher

IPC: G06Q30/00 ,  H04L9/32

CPC classification number: G06Q30/0603 ,  G06Q20/3821

Abstract: The present application discloses a system and method of critical web-based service architecture at a high level for color management systems in which services can be rendered remotely at very low cost to the end user using a cloud computing based computer network architecture. Service supported include Remote RIPPing, remote profiling, remote IQ analysis for diagnosing color problems, Remote System Problem Action Requests (SPAR) evaluation and patch distribution, remote copy match solutions; multi-machine matching; remote Half-tone downloads; other remote file processing; and image or photo indexing and retrieval.

Abstract translation: 本申请公开了一种用于色彩管理系统的高级关键的基于web的服务架构的系统和方法，其中使用基于云计算的计算机网络架构可以向终端用户以非常低的成本远程地呈现服务。 支持的服务包括远程RIPPing，远程分析，用于诊断颜色问题的远程IQ分析，远程系统问题操作请求（SPAR）评估和补丁分发，远程复制匹配解决方案; 多机匹配; 远程半音下载; 其他远程文件处理; 以及图像或照片索引和检索。

公开(公告)号：US20090297179A1

公开(公告)日：2009-12-03

申请号：US12390568

申请日：2009-02-23

Applicant: Lalit Keshav Mestha ,  Sohail A. Dianat ,  Bharathi Venkitaraman ,  Douglas Kreckel

Inventor： Lalit Keshav Mestha ,  Sohail A. Dianat ,  Bharathi Venkitaraman ,  Douglas Kreckel

IPC: G03G15/08

CPC classification number: G03G15/0849

Abstract: The present disclosure provides for an imaging machine having an imaging member including a method for maintaining a toner concentration. The method for maintaining the toner concentration comprises: determining a toner concentration (TC) measurement using a sensor; computing a state estimator output from the TC measurement and a pre-stored estimator gain matrix, Ke; computing an estimated target state from the state estimator and a pre-stored controller gain matrix, K; computing a duty cycle from the estimated target state, pixel count data, and pre-stored target decomposer output; and, updating the duty cycle by repeating the above method for the next TC cycle.

Abstract translation: 本公开提供了一种具有成像构件的成像机，其包括用于维持调色剂浓度的方法。 维持调色剂浓度的方法包括：使用传感器确定调色剂浓度（TC）测量; 计算来自TC测量的状态估计器输出和预先存储的估计器增益矩阵Ke; 从状态估计器计算估计的目标状态和预先存储的控制器增益矩阵K; 从估计的目标状态，像素计数数据和预存储的目标分解器输出计算占空比; 并且通过重复上述用于下一个TC循环的方法来更新占空比。

公开(公告)号：US20090296993A1

公开(公告)日：2009-12-03

申请号：US12127690

申请日：2008-05-27

Applicant: Lalit Keshav Mestha ,  Peter Stanley Fisher

Inventor： Lalit Keshav Mestha ,  Peter Stanley Fisher

IPC: G06K9/00

CPC classification number: B42C11/02

Abstract: The present exemplary embodiment relates to a job integrity and verification system which uses patches comprised of at least one symbology printed in non-visible ink and attached to the individual components of a job. The patches are detected, read, and interpreted by use of an inline spectrophotometer. The content of the plurality of patches are compared and when a match is detected, the components containing the patches are combined together into one end item finished product.

Abstract translation: 本示例性实施例涉及一种作业完整性和验证系统，该系统使用由不可见墨水打印并连接到作业的各个部件的至少一个符号系统构成的补片。 通过使用在线分光光度计检测，读取和解释贴片。 比较多个补丁的内容，并且当检测到匹配时，将包含补丁的组件组合在一起成为一个终端产品成品。

公开(公告)号：US20090296981A1

公开(公告)日：2009-12-03

申请号：US12260476

申请日：2008-10-29

Applicant: Lalit Keshav Mestha ,  Peter Stanley Fisher

Inventor： Lalit Keshav Mestha ,  Peter Stanley Fisher

IPC: G06K9/00 ,  G06K15/02 ,  B42D15/00

CPC classification number: B41M3/14 ,  G06K1/121 ,  G06K9/2018 ,  G06K19/06046

Abstract: The present application discloses a system, method and device for placing substantially invisible marks comprising alphanumeric characters, symbols, or bar codes, on a page using clear ink or toner, which may then be read by a spectrophotometer. Such substantially invisible marks are not viewable to the unaided eye of a human observer, do not distract a viewer, and allow the viewer to focus their attention on the printed matter and text of interest to the viewer.

Abstract translation: 本申请公开了一种用于使用清晰的墨水或调色剂将基本上包含字母数字字符，符号或条形码的不可见标记放置在页面上的系统，方法和装置，然后可以由分光光度计读取。 这种基本上不可见的标记对于人类观察者的肉眼是不可见的，不要分散观看者的注意力，并且允许观看者将注意力集中在观看者的感兴趣的打印物和文本上。