公开(公告)号：US20110090548A1

公开(公告)日：2011-04-21

申请号：US12581566

申请日：2009-10-19

Applicant: LALIT KESHAV MESTHA ,  Alvaro Enrique Gil ,  Peter Aidan Crean

Inventor： LALIT KESHAV MESTHA ,  Alvaro Enrique Gil ,  Peter Aidan Crean

IPC: G03F3/08

CPC classification number: H04N1/6022 ,  H04N1/6052

Abstract: What is disclosed is a novel system and method to reduce noise induced by color mixing in a color management system. At least one device color recipe is obtained for a target spot color. The recipe is defined for a color marking device and defines a range of marking device color values for a target L*a*b color value. Next, a minimal value and a maximum value of each color value in the range of color values for said target L*a*b color value are identified. An iterative process of searching is performed until the printed color test patch produces a visually acceptable smoothness while matching color accuracy. This iterative process includes generating at least one additional new device color recipe from color values within the range of color values. At least one of the new device color recipes is selected and provided to the color marking device for rendering.

Abstract translation: 公开了一种减少颜色管理系统中颜色混合引起的噪声的新型系统和方法。 为目标专色获得至少一个设备颜色配方。 为彩色标记设备定义配方，并定义了目标L * a * b颜色值的标记设备颜色值的范围。 接下来，识别所述目标L * a * b颜色值的颜色值的范围内的每个颜色值的最小值和最大值。 执行搜索的迭代过程，直到打印的色彩测试贴片在匹配颜色精度的同时产生视觉上可接受的平滑度。 该迭代过程包括从颜色值范围内的颜色值生成至少一个附加的新设备颜色配方。 选择至少一种新的设备颜色配方并将其提供给彩色标记设备进行渲染。

公开(公告)号：US20110019212A1

公开(公告)日：2011-01-27

申请号：US12507515

申请日：2009-07-22

Applicant: Yao Rong WANG ,  Lalit Keshav MESTHA

Inventor： Yao Rong WANG ,  Lalit Keshav MESTHA

IPC: H04N1/60

CPC classification number: H04N1/407

Abstract: A method for calibrating an image printing system that includes a plurality of parallel printers, where each of the printers has a minimum luminance value. The method includes determining a minimum luminance value profile for the plurality of printers in the image printing system based on the minimum luminance values of each of the printers in the image printing system, determining a black point compensation function based on the determined minimum luminance value profile, adjusting luminance values for input image data using the determined black point compensation function, and rendering, with the parallel printers, images on substrates based on the input image data with adjusted luminance levels.

Abstract translation: 一种用于校准包括多个平行打印机的图像打印系统的方法，其中每个打印机具有最小的亮度值。 该方法包括基于图像打印系统中的每个打印机的最小亮度值确定图像打印系统中的多个打印机的最小亮度值分布，基于所确定的最小亮度值分布来确定黑点补偿功能 使用确定的黑点补偿功能调整输入图像数据的亮度值，并且使用并行打印机，基于具有调整的亮度水平的输入图像数据来渲染基板上的图像。

公开(公告)号：US07804614B2

公开(公告)日：2010-09-28

申请号：US11585463

申请日：2006-10-24

Applicant: Lalit Keshav Mestha ,  Ann Lerene McCarthy ,  Shriram V. Revankar

Inventor： Lalit Keshav Mestha ,  Ann Lerene McCarthy ,  Shriram V. Revankar

IPC: G06F15/00 ,  B41J11/44

CPC classification number: G06F3/1205 ,  G06F3/1208 ,  G06F3/1267 ,  G06F3/1285

Abstract: A method and system is provided for obtaining an archival model of a selected print job executed in a network imaging system comprised of a plurality of imaging engines. The print job is archived to include job data comprising the imaging information defining the desired job and the production status performance data of the particular engine at about the time of the executing of the job. The job data and the engine performance data are associated and archived for later retrieval for enhanced temporal and distributed consistency in a reprinting of the job.

Abstract translation: 提供了一种方法和系统，用于获得在由多个成像引擎构成的网络成像系统中执行的所选打印作业的归档模型。 打印作业被归档以包括在执行作业时在包括定义所需作业的成像信息和特定引擎的生产状态性能数据的作业数据。 作业数据和引擎性能数据相关联并存档以供以后检索，以便在重新打印作业时增强时间和分布的一致性。

公开(公告)号：US07782490B2

公开(公告)日：2010-08-24

申请号：US12024221

申请日：2008-02-01

Applicant: Lalit Keshav Mestha ,  Sohail A. Dianat

Inventor： Lalit Keshav Mestha ,  Sohail A. Dianat

IPC: G06F15/00

CPC classification number: G06F15/00 ,  H04N1/603 ,  H04N1/6036

Abstract: What is provided are a novel system and method for determining a sensitivity matrix for adaptive color control in a color marking device capable of performing device independent color correction. In one embodiment, a determination is made as to what control operation the color marking device is being characterized for. Nominal CMYK values are then selected based on the determined control operation. If the control operation is a gray balancing operation, the nominal CMYK values are selected using C=M=Y=L* and K*=0 values. Otherwise, the nominal CMYK values are selected using a CMYK to L*a*b* printer map. Color parameters are determined for the CMYK values based on the selected nominal CMYK values. A sensitivity matrix is then generated from the color parameters and CMYK values. The method facilitates calibration of dynamically varying color reproduction devices.

Abstract translation: 提供了一种用于在能够执行设备无关色彩校正的彩色标记装置中确定自适应色彩控制的灵敏度矩阵的新型系统和方法。 在一个实施例中，确定颜色标记装置的特征在于什么控制操作。 然后根据确定的控制操作选择标称CMYK值。 如果控制操作是灰色平衡操作，则使用C = M = Y = L *和K * = 0值选择标称CMYK值。 否则，使用CMYK至L * a * b *打印机映射来选择标称CMYK值。 基于所选的标称CMYK值为CMYK值确定颜色参数。 然后从颜色参数和CMYK值生成灵敏度矩阵。 该方法便于校准动态变化的色彩再现设备。

公开(公告)号：US20100202005A1

公开(公告)日：2010-08-12

申请号：US12767133

申请日：2010-04-26

Applicant: R. Enrique Viturro ,  Lalit Keshav Mestha ,  Joseph Hancock ,  Tonya Love

Inventor： R. Enrique Viturro ,  Lalit Keshav Mestha ,  Joseph Hancock ,  Tonya Love

IPC: G06F15/00

CPC classification number: H04N1/4078

Abstract: An automatic gray balance control system to produce TRCs for all primary colors in a reproduction device and for each pitch of a photoreceptor system by printing target patches for each pitch, measuring the output colors, and automatically readjusting the tone reproduction curves until a satisfactory level of accuracy is obtained as compared to the theoretical desired output. The system produces pitch-based gray balanced TRCs that are updated frequently for each pitch, with different TRCs for different pitches, to ensure consistency in output from pitch to pitch as well as from page to page on a given pitch.

Abstract translation: 一种自动灰度平衡控制系统，用于在再现装置中产生用于所有原色的TRC，并且通过印刷每个间距的目标贴片，测量输出颜色，并且自动重新调整色调再现曲线，直到满意的等级 与理论预期输出相比，获得了精度。 该系统产生基于沥青的灰色平衡TRC，每个音调经常更新，具有不同音高的不同TRC，以确保从音调到音调的输出以及给定音调从一页到另一页的输出的一致性。

公开(公告)号：US20100198368A1

公开(公告)日：2010-08-05

申请号：US12363898

申请日：2009-02-02

Applicant: Lalit Keshav MESTHA ,  Prudhvi K. GURRAM ,  Alvaro Enrique GIL

Inventor： Lalit Keshav MESTHA ,  Prudhvi K. GURRAM ,  Alvaro Enrique GIL

IPC: G05B13/04

CPC classification number: G03G15/065 ,  G03G15/0266 ,  G03G15/50

Abstract: Methods and planning systems used to schedule gain matrices for process control loops and determine optimal values for manipulated variables according to a minimum cost function. A cost function is calculated for each of a predetermined number of plans as a sum of partial cost functions calculated over a predetermined number of projections in a horizon. Each partial cost function after the initial projection of a plan is calculated using a scheduled gain matrix. The gain matrix can be scheduled for each projection by selection from a predetermined set of gain matrices or can be calculated in real time during the calculation for each projection.

Abstract translation: 用于计划过程控制回路的增益矩阵的方法和规划系统，并根据最小成本函数确定操纵变量的最佳值。 对于预定数量的计划中的每一个计算成本函数，作为在水平线上预定数量的投影计算的部分成本函数的总和。 使用调度增益矩阵计算平面图初始投影后的每个部分成本函数。 增益矩阵可以通过从预定的增益矩阵组中选择来为每个投影进行调度，或者可以在每个投影的计算期间实时计算增益矩阵。

公开(公告)号：US07633647B2

公开(公告)日：2009-12-15

申请号：US11501654

申请日：2006-08-09

Applicant: Lalit Keshav Mestha ,  R. Enrique Viturro

Inventor： Lalit Keshav Mestha ,  R. Enrique Viturro

IPC: G06F15/00

CPC classification number: G06F15/00 ,  H04N1/00002 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00058 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/6033 ,  H04N1/6041

Abstract: A method and system for color calibration or color output device spectrophotoically measures at test target including a preselected test color value. A multi-dimensional LUT of the device is generated representative of the color information including the at least one preselected color. Producing a second image width device including the at least one preselected color located at a plurality of spatial locations in the second image. A second sensor measures the second image and a plurality of spatial locations having the preselected color for generating reflectance information for the preselected color at the plurality of spatial locations. An error is determined between the measured color of the one preselected color and the reflectance information at the other pixel locations. A multi-dimensional LUT is adjusted to minimize spatial uniformity errors at the other pixel locations, thus calibrating device color output spatially.

Abstract translation: 用于颜色校准或颜色输出装置的分光光度测量方法和系统，包括预选的测试颜色值。 产生装置的多维LUT，代表包括至少一个预选颜色的颜色信息。 生成包括位于第二图像中的多个空间位置处的至少一个预选颜色的第二图像宽度装置。 第二传感器测量第二图像和具有预选颜色的多个空间位置，用于在多个空间位置处产生用于预选颜色的反射信息。 在一个预选颜色的测量颜色和其他像素位置处的反射率信息之间确定误差。 调整多维LUT以使其他像素位置处的空间均匀性误差最小化，从而空间地校准设备颜色输出。

公开(公告)号：US20090296112A1

公开(公告)日：2009-12-03

申请号：US12261624

申请日：2008-10-30

Applicant: Alvaro Enrique Gil ,  Lalit Keshav Mestha

Inventor： Alvaro Enrique Gil ,  Lalit Keshav Mestha

IPC: H04N1/60

CPC classification number: H04N1/6022

Abstract: This disclosure provides spot color control methods, apparatus and systems. According to one exemplary embodiment, disclosed is a method of generating device dependent color recipes for a plurality of printing devices. The method includes generating a first device dependent recipe for a target color for rendering on a first printing device, and generating a second device dependent recipe for the target color for rendering on a second printing device, whereby the second device dependent recipe is a function of the first device dependent color recipe.

Abstract translation: 本公开提供了专色控制方法，装置和系统。 根据一个示例性实施例，公开了一种用于为多个打印设备生成依赖于设备的颜色配方的方法。 该方法包括生成用于在第一打印设备上呈现的目标颜色的第一设备相关配方，以及生成用于目标颜色的第二设备相关配方以在第二打印设备上呈现，由此第二设备依赖配方是 第一个依赖于设备的颜色配方。

公开(公告)号：US20090190966A1

公开(公告)日：2009-07-30

申请号：US12208078

申请日：2008-09-10

Applicant: Lalit Keshav MESTHA ,  Palghat RAMESH ,  John G. SHAW ,  Dale R. MASHTARE ,  Joel A. KUBBY

Inventor： Lalit Keshav MESTHA ,  Palghat RAMESH ,  John G. SHAW ,  Dale R. MASHTARE ,  Joel A. KUBBY

IPC: G03G15/08

CPC classification number: G03G15/0818 ,  G03G2215/00957 ,  G03G2215/0653 ,  G03G2215/1614

Abstract: Exemplary embodiments provide a roll member that includes one or more linear arrays of actuator cells and methods for making and using the roll member. In one embodiment, each linear array of the roll member can be controllably actuated as a group by, e.g., an oscillating voltage, to release toner particles adhered thereto and to form a uniform toner cloud in the development area between the roll member and an image receiving member. The controllable actuation can also aid in the unloading process of the residual toner particles from the roll member. In various embodiments, the uniform toner cloud and/or the controllable unloading process can enable a non-interactive development system for image-on-image full-color printing.

Abstract translation: 示例性实施例提供了包括一个或多个致动器单元的线性阵列的辊构件以及用于制造和使用辊构件的方法。 在一个实施例中，辊构件的每个线性阵列可以通过例如振荡电压作为一组进行可控地致动，以释放附着在其上的调色剂颗粒，并在辊构件和图像之间的显影区域中形成均匀的调色剂云 接收成员。 可控制的致动还可以帮助来自辊构件的剩余调色剂颗粒的卸载过程。 在各种实施例中，均匀调色剂云和/或可控卸载过程可以实现用于图像上全色打印的非交互式显影系统。

公开(公告)号：US20090161125A1

公开(公告)日：2009-06-25

申请号：US11959824

申请日：2007-12-19

Applicant: Lalit Keshav Mestha ,  Alvaro Enrique Gil ,  Matthew Hoffmann

Inventor： Lalit Keshav Mestha ,  Alvaro Enrique Gil ,  Matthew Hoffmann

IPC: G03F3/08

CPC classification number: H04N1/54 ,  H04N1/6058

Abstract: A method is provided for classifying a color printer gamut into a plurality of gamut subclasses including representing the color printer gamut as a composite of gamut classes wherein each gamut class is comprised of a subset of printer color separations; and, assigning selected spot color targets to determined ones of the gamut classes. The method further includes determining if the selected spot color target is located inside, or on-boundary, or outside of the gamut classes.

Abstract translation: 提供了一种用于将彩色打印机色域分类成多个色域子类的方法，包括将彩色打印机色域表示为色域类别的组合，其中每个色域等级由打印机分色的子集组成; 并且将所选择的专色目标分配给确定的色域等级。 所述方法还包括确定所选择的专色目标是位于所述色域等级内还是位于边界外。