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公开(公告)号：US20130185001A1
公开(公告)日：2013-07-18
申请号：US13352683
申请日：2012-01-18
Applicant: George Cunha Cardoso , Lalit Keshav Mestha
Inventor： George Cunha Cardoso , Lalit Keshav Mestha
CPC classification number: G01M15/102 , G01M17/007
Abstract: What is disclosed is a system and method for testing a motorized vehicle's exhaust emissions in a non-controlled emissions testing environment. In one embodiment, the present system comprises a toll collection structure having a sensor for obtaining information about a registered owner of a motor vehicle and about the motor vehicle itself, as the vehicle travels on a lane which passes through the structure. At least one emissions detector, which is fixed to the toll collection structure, performs an emissions test on the vehicle by analyzing an exhaust plume emitted by the vehicle. Speed/acceleration of the vehicle is also measured. In various embodiments hereof, the emissions detector comprises a combination of dispersive or non-dispersive infrared detector and a dispersive or non-dispersive ultraviolet detector. Emissions data collected is automatically compared to emissions standards and an authority is notified if that the vehicle does not meet those standards. Various embodiments are disclosed.
Abstract translation: 所公开的是在非受控排放测试环境中测试机动车辆废气排放的系统和方法。 在一个实施例中，当系统在通过结构的车道上行驶时，本系统包括具有用于获取关于机动车辆的注册所有者以及关于机动车辆本身的信息的传感器的收费结构。 固定在收费结构上的至少一个排放物检测器通过分析由车辆发出的排气羽流对车辆执行排放测试。 还测量车辆的速度/加速度。 在本发明的各种实施方案中，排放检测器包括分散或非分散红外检测器和分散或非分散紫外检测器的组合。 收集的排放数据将自动与排放标准进行比较，如果车辆不符合这些标准，则会通知当局。 公开了各种实施例。
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公开(公告)号：US08456720B2
公开(公告)日：2013-06-04
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
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。
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公开(公告)号：US08358453B2
公开(公告)日：2013-01-22
申请号：US12428799
申请日：2009-04-23
Applicant: Lalit Keshav Mestha , Alvaro Enrique Gil
Inventor： Lalit Keshav Mestha , Alvaro Enrique Gil
CPC classification number: H04N1/6019
Abstract: A method and system of color management for an image marking device. A sensor measures printed hardcopy colors. A first gain, computed by a linear controller based on a linear model, is scheduled for each color node of a sampled color space. For each node where a convergence error exceeds a threshold, a second gain is scheduled by a nonlinear controller. The second gain scheduling includes initializing operational parameters, and performing an iterative procedure. The iterative procedure includes computing gain matrices over a defined projection horizon, evaluating a cost function for each gain matrix, determining the cost function, scheduling a new gain based on selecting a gain matrix having the minimum value of the cost function, and computing new CMYK values based on the new gain. A multidimensional LUT based on the scheduled gain matrices is generated and stored in memory, and a hardcopy output image is generated based on the stored multidimensional LUT.
Abstract translation: 图像标记装置的颜色管理方法和系统。 传感器测量打印的硬拷贝颜色。 由线性控制器基于线性模型计算的第一增益被调度到采样色空间的每个颜色节点。 对于收敛误差超过阈值的每个节点，第二增益由非线性控制器调度。 第二增益调度包括初始化操作参数，以及执行迭代过程。 迭代过程包括在定义的投影水平上计算增益矩阵，评估每个增益矩阵的成本函数，确定成本函数，基于选择具有成本函数的最小值的增益矩阵来调度新增益，以及计算新的CMYK 基于新增益的价值。 基于调度增益矩阵的多维LUT被生成并存储在存储器中，并且基于存储的多维LUT生成硬拷贝输出图像。
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94.发明授权公开(公告)号：US08340937B2
公开(公告)日：2012-12-25
申请号：US12777344
申请日：2010-05-11
Applicant: Gary Walker Skinner , Scott Seyfried , Lalit Keshav Mestha
Inventor： Gary Walker Skinner , Scott Seyfried , Lalit Keshav Mestha
IPC: G01D18/00
Abstract: What is disclosed is a novel system and method for characterizing a model-based spectral reflectance sensing device. In accordance with the teachings hereof, measurements of training samples taken with a previously manufactured ‘fleet master’ sensing device are adapted, in a manner more fully disclosed herein, based upon knowledge of the wavelengths of the illuminators used for both the subject and fleet master sensors, as well as spectral reflectance response of the training samples as measured by a reference spectrophotometer device. Utilizing the adapted measurements of the fleet master device, a reconstruction matrix can be quickly constructed for the subject sensor. The present system and method provides reasonably good accuracy using pre-existing measurement data. This results in manufacturing cost savings on a per-sensor basis.
Abstract translation: 公开的是用于表征基于模型的光谱反射率感测装置的新型系统和方法。 根据本文的教导，基于以前制造的舰队主感测装置拍摄的训练样本的测量以基于本文更全面地公开的方式基于用于主体和舰队主传感器的照明器的波长的知识来进行调整， 以及通过参考分光光度计装置测量的训练样品的光谱反射响应。 利用船队主装置的适应测量，可以快速地为对象传感器构建重建矩阵。 本系统和方法使用预先存在的测量数据提供了相当好的精度。 这导致在每个传感器的基础上制造成本节省。
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公开(公告)号：US08228556B2
公开(公告)日：2012-07-24
申请号：US12390748
申请日：2009-02-23
Applicant: Lalit Keshav Mestha , Martin S. Maltz
Inventor： Lalit Keshav Mestha , Martin S. Maltz
CPC classification number: H04N1/6022 , H04N1/603
Abstract: A computerized system, method, and software apparatus is presented which reduces the black level of the printing process in order to substantially remove stray black dots from the finished product of a printing output. Black levels are reduced by updating the print engine regions for the colors W, C, M, Y, MY, CM, CY, and neutral and by assigning a weights each color. The values are used to compute CMKY values. These values are then placed in a gain matrix and stored in a computer memory.
Abstract translation: 提出了一种计算机化系统，方法和软件设备，其减少了印刷过程的黑色水平，以便从打印输出的成品中基本上去除杂散黑点。 通过更新颜色W，C，M，Y，MY，CM，CY和中性的打印引擎区域，并通过为每种颜色分配权重来减少黑色等级。 这些值用于计算CMKY值。 然后将这些值放置在增益矩阵中并存储在计算机存储器中。
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Patent Agency Ranking
公开(公告)号：US20120147390A1
公开(公告)日：2012-06-14
申请号：US12963279
申请日：2010-12-08
Applicant: Jack Gaynor Elliot , Lalit Keshav Mestha , Peter Paul , David C. Craig , Brian Robert Conrow , Christine Ann Steurrys
Inventor： Jack Gaynor Elliot , Lalit Keshav Mestha , Peter Paul , David C. Craig , Brian Robert Conrow , Christine Ann Steurrys
IPC: H04N1/60
CPC classification number: H04N1/6041 , H04N1/6044 , H04N1/6047
Abstract: 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.
Abstract translation: 公开的是基于使用在线分光光度计（ILS）或类似装置在印刷纸上进行的测量的静电Dmax控制的新颖系统和方法。 所公开的方法基于直接测量致动器灵敏度的颜色。 使用专用于该分色的致动器来独立地控制每个分离。 本方法在控制固体原色的颜色方面是有效的。 变化矢量与现场观察到的纯色变化高度相关的事实表明，这里的教导有效地提高了纯色稳定性。 增加的纯色稳定性增加了整个打印机色域的色彩稳定性和色域边界的稳定性，这增加了色域映射算法的鲁棒性。 有利地，本方法可以与现有的基于ILS的维护架构相结合。
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公开(公告)号：US20120086959A1
公开(公告)日：2012-04-12
申请号：US12902669
申请日：2010-10-12
Applicant: Wencheng Wu , Edul N. Dalal , Alvaro Enrique Gil , Lalit Keshav Mestha
Inventor： Wencheng Wu , Edul N. Dalal , Alvaro Enrique Gil , Lalit Keshav Mestha
IPC: H04N1/60
CPC classification number: H04N1/6022 , H04N1/54
Abstract: What is disclosed is a novel system and method for obtaining optimum CMYK values for spot colors, with significantly lower computational effort, by using a set of printer profiles with different pre-computed GCR strategies. Various versions are discussed on how to utilize and/or choose among these profiles for each spot color. The present invention is applicable to spot color emulation for CMYK as well as N-color printing, and can be used to optimize one or more image quality attributes, including graininess, mottle, color stability, ink cost, etc. Various embodiments are disclosed.
Abstract translation: 公开的是一种用于通过使用具有不同的预先计算的GCR策略的一组打印机配置文件来获得专色的最佳CMYK值的新型系统和方法，具有显着更低的计算量。 讨论各种版本如何在每个专色的这些轮廓中使用和/或选择。 本发明适用于CMYK的专色仿真以及N色印刷，可用于优化一个或多个图像质量属性，包括粒度，斑点，颜色稳定性，墨水成本等。各种实施例被公开。
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公开(公告)号：US08149459B2
公开(公告)日：2012-04-03
申请号：US12391504
申请日：2009-02-24
Applicant: Lalit Keshav Mestha , Alvaro Enrique Gil
Inventor： Lalit Keshav Mestha , Alvaro Enrique Gil
IPC: G06F15/00
CPC classification number: H04N1/6058
Abstract: What is disclosed is a system and method for mapping an out-of-gamut spot color to a surface boundary of a target color gamut of a color marking device in a color management system. The present method accurately detects the intersection of a point at the boundary surface of a ray traced between the out-of-gamut color and color point along a neutral axis of the target gamut. The ability to map an out-of-gamut color accurately to the gamut surface provides many advantages as one skilled in the art would appreciate. Various embodiments are provided.
Abstract translation: 所公开的是用于将色域外的专色映射到颜色管理系统中的颜色标记装置的目标色域的表面边界的系统和方法。 本方法精确地检测在目标色域的中性轴之间的在色域外的色域和色点之间记录的光线的边界点处的交点。 将色域外的色彩映射到色域表面的能力提供了许多优点，如本领域技术人员将理解的。 提供了各种实施例。
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公开(公告)号：US08117183B2
公开(公告)日：2012-02-14
申请号：US12273208
申请日：2008-11-18
Applicant: Lalit Keshav Mestha , Sohail A. Dianat
Inventor： Lalit Keshav Mestha , Sohail A. Dianat
CPC classification number: G06F17/3025
Abstract: The computer algorithm described which indexes and retrieves images. A query in the form of an image object or an image facilitates image retrieval in order to retrieve several images close to user's request. A thumbnail form of rank ordered images is provided for viewing. The user selects the images and down loads the images for inclusion in the job. The images are then ripped and printed.
Abstract translation: 描述了用于索引和检索图像的计算机算法。 以图像对象或图像形式的查询便于图像检索，以便检索靠近用户请求的多个图像。 提供排序图像的缩略图形式供查看。 用户选择图像并下载图像以包含在作业中。 然后将图像撕开并打印。
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公开(公告)号：US20120019842A1
公开(公告)日：2012-01-26
申请号：US12839620
申请日：2010-07-20
Applicant: Jack Gaynor Elliot , Lalit Keshav Mestha , Peter Paul , David C. Craig , Brian Robert Conrow , Christine Ann Steurrys
Inventor： Jack Gaynor Elliot , Lalit Keshav Mestha , Peter Paul , David C. Craig , Brian Robert Conrow , Christine Ann Steurrys
IPC: H04N1/60
CPC classification number: H04N1/6033 , H04N1/6036
Abstract: 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.
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