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1.发明授权System and method for compensating for streaks in images using intensity variation of raster output scanner 有权使用光栅输出扫描仪的强度变化补偿图像条纹的系统和方法公开(公告)号：US07542171B2
公开(公告)日：2009-06-02
申请号：US10872922
申请日：2004-06-21
CPC分类号： H04N1/4015
摘要： A method and system compensates for streak defects in an image formed using a raster output scanning device. A reflectance profile is generated from an image generated by the raster output scanning device. Thereafter, a difference profile is determined. The difference profile is determined based upon the generated reflectance profile and a uniform profile. A compensation profile is generated based on the determined difference profile. The compensation profile represents a change in an intensity profile for the raster output scanning device.
摘要翻译： 一种方法和系统补偿使用光栅输出扫描装置形成的图像中的条纹缺陷。 从由光栅输出扫描装置生成的图像产生反射率分布。 此后，确定差异轮廓。 基于生成的反射率分布和均匀的轮廓来确定差分轮廓。 基于确定的差异轮廓产生补偿曲线。 补偿曲线表示光栅输出扫描装置的强度分布的变化。
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2.发明授权Methods and systems for achieving print uniformity using reduced memory or computational requirements 有权使用减少记忆或计算要求实现打印均匀性的方法和系统公开(公告)号：US08705120B2
公开(公告)日：2014-04-22
申请号：US12786694
申请日：2010-05-25
申请人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
发明人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
CPC分类号： H04N1/407 , H04N1/4097
摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.
摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。
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3.发明授权Methods and systems achieving print uniformity using reduced memory or computational requirements 有权使用减少的记忆或计算要求实现打印均匀性的方法和系统公开(公告)号：US08305660B2
公开(公告)日：2012-11-06
申请号：US10922316
申请日：2004-08-19
申请人： Yeqing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
发明人： Yeqing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
CPC分类号： H04N1/407 , H04N1/4097
摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.
摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。
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4.发明申请METHODS AND SYSTEMS ACHIEVING PRINT UNIFORMITY USING REDUCED MEMORY OR COMPUTATIONAL REQUIREMENTS 有权使用减少内存或计算要求实现打印均匀性的方法和系统公开(公告)号：US20100231942A1
公开(公告)日：2010-09-16
申请号：US12786694
申请日：2010-05-25
申请人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
发明人： Yequing (Juliet) Zhang , Daniel E. Viassolo , Susan J. Zoltner , Howard A. Mizes , Robert P. Loce
IPC分类号： G06F15/00
CPC分类号： H04N1/407 , H04N1/4097
摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.
摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。
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5.发明授权公开(公告)号：US07424169B2
公开(公告)日：2008-09-09
申请号：US10641553
申请日：2003-08-15
CPC分类号： G06T5/001 , G06T5/20 , G06T2207/10008 , G06T2207/30176 , H04N1/409
摘要： An image processing method to reduce streaking on a printed sheet uses a negative feedback system to reduce streaking. The method scans a printed sheet to produce image data. The method further measures gray-levels of the image data and computes a compensation vector from the measured gray-levels as the difference between a nominal tonal-resproduction-curve and local tonal-reproduction-curves. The compensation vector is applied the image data to be printed. The compensation vector emphasizes ranges of frequencies sensitive of the human eye.
摘要翻译： 减少打印纸上的划痕的图像处理方法使用负反馈系统来减少条纹。 该方法扫描打印的纸张以产生图像数据。 该方法进一步测量图像数据的灰度级，并从所测量的灰度级计算补偿矢量作为标称色调响应曲线与局部色调再生曲线之间的差值。 将补偿矢量应用于要打印的图像数据。 补偿矢量强调人眼敏感的频率范围。
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公开(公告)号：US06819352B2
公开(公告)日：2004-11-16
申请号：US10342543
申请日：2003-01-15
IPC分类号： B41J247
CPC分类号： G06K15/1247 , G06K15/027 , H04N1/4015
摘要： A method of adjusting print uniformity in a xerographic device is provided. The method includes: a) printing a test pattern, b) transferring the printed test pattern to a scanner, c) scanning the printed test pattern and detecting line information, d) communicating the detected information to a computer, e) determining measurements from the detected line information, f) calculating the difference between the measurements and target values, and g) depending on the difference, adjusting a current supplied to an individual LED of an LED printbar associated with the measurement to reduce the difference. In one aspect, a test pattern line is associated with an individual LED. In another aspect, test pattern lines are associated with two adjacent LEDs and three adjacent LEDs. In yet another aspect, the test pattern includes dotted lines. In still another aspect, the invention includes a xerographic device with an LED printbar, a computer, and a scanner device.
摘要翻译： 提供了一种在静电印刷设备中调整印刷均匀性的方法。 该方法包括：a）打印测试图案，b）将打印的测试图案传送到扫描器，c）扫描打印的测试图案和检测线路信息，d）将检测到的信息传送到计算机，e） 检测线信息，f）计算测量值和目标值之间的差值，以及g）根据该差异，调节与测量相关联的LED打印机的单独LED的电流，以减小差异。 在一个方面，测试图案线与单独的LED相关联。 在另一方面，测试图案线与两个相邻的LED和三个相邻的LED相关联。 在另一方面，测试图案包括虚线。 在另一方面，本发明包括具有LED打印条，计算机和扫描仪装置的静电复印装置。
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7.发明授权公开(公告)号：US06993400B2
公开(公告)日：2006-01-31
申请号：US10384870
申请日：2003-03-07
申请人： Daniel E. Viassolo
发明人： Daniel E. Viassolo
IPC分类号： G06F19/00
CPC分类号： G06F9/505 , G06F3/1204 , G06F3/1205 , G06F3/1207 , G06F3/1259 , G06F3/126 , G06F3/1285 , G06Q10/06
摘要： System and method for real-time job cell-assignment using soft-computing is provided. The system includes a work-in-progress module, a load estimation module and a fuzzy inference module. Clients send jobs to the system and the system evaluates a plurality of document processing cells' capacity to process the jobs taking into consideration the cells' current workload and the cells' capacity to process the job. Specifically, the work-in-progress module determines a work-in-progress (“WIP”) value for each cell that represents a current workload, and the load estimation module estimates a load value that represents how busy the cell is for jobs of a certain type. The fuzzy inference module applies the WIP and the estimated load values to a set of membership functions to associate the values with fuzzy values. The module determines merit values for the cells using the fuzzy values, and selects the cell having the largest merit value to route the job to.
摘要翻译： 提供了使用软计算实时作业单元分配的系统和方法。 该系统包括在制品在内的模块，负荷估计模块和模糊推理模块。 客户端将作业发送到系统，并且系统评估多个文档处理单元处理作业的能力，同时考虑到单元的当前工作负载和单元处理作业的能力。 具体来说，在制品模块确定代表当前工作负荷的每个单元的正在进行中（“WIP”）值，并且负载估计模块估计代表该单元对作业的繁忙的负载值 某种类型 模糊推理模块将WIP和估计的负载值应用于一组隶属函数，以将值与模糊值相关联。 该模块使用模糊值确定单元格的优点值，并选择具有最大值的单元格来路由作业。
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8.发明授权Systems and methods for correcting banding defects using feedback and/or feedforward control 失效使用反馈和/或前馈控制校正条带缺陷的系统和方法公开(公告)号：US07058325B2
公开(公告)日：2006-06-06
申请号：US10852216
申请日：2004-05-25
申请人： Eric S. Hamby , Eric M. Gross , Daniel E. Viassolo , Michael D. Thompson , R. Enrique Viturro , Fei Xiao , Clark V. Lange
发明人： Eric S. Hamby , Eric M. Gross , Daniel E. Viassolo , Michael D. Thompson , R. Enrique Viturro , Fei Xiao , Clark V. Lange
IPC分类号： G03G15/00
CPC分类号： G03G15/5062
摘要： Systems and methods of controlling banding defects on a receiving member in an imaging or printing process using a feedback and/or feedforward control technique. In one exemplary embodiment, a method of controlling banding defects on a receiving member in an imaging or printing process includes (a) determining a toner density on the receiving member, (b) automatically determining the extent of banding on the receiving member by comparing the determined toner density to a reference toner density value, and (c) automatically adjusting the toner density based on a result obtained from the comparison of the measured toner density to the reference toner density value, automatically determining the extent of banding and automatically adjusting the toner density being performed using a feedback and/or feedforward control routine or application.
摘要翻译： 使用反馈和/或前馈控制技术在成像或打印过程中控制接收部件上的带状缺陷的系统和方法。 在一个示例性实施例中，在成像或打印处理中控制接收部件上的条带缺陷的方法包括（a）确定接收部件上的调色剂浓度，（b）通过比较接收部件上的条带自动确定接收部件的条带宽度 将调色剂浓度确定为参考调色剂浓度值，以及（c）基于从测量的调色剂浓度与参考调色剂浓度值的比较获得的结果自动调节调色剂浓度，自动确定条带的程度并自动调节调色剂 使用反馈和/或前馈控制例程或应用来执行密度。
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9.发明授权Methods and systems for determining resource capabilities for a lean production environment 有权确定精益生产环境的资源能力的方法和系统公开(公告)号：US07379206B2
公开(公告)日：2008-05-27
申请号：US10756210
申请日：2004-01-12
申请人： Yuri Gartstein , Daniel E. Viassolo
发明人： Yuri Gartstein , Daniel E. Viassolo
IPC分类号： G06K15/00
CPC分类号： G06F3/1263 , G06F3/1204 , G06F3/1208 , G06F3/1275 , G06F3/1285
摘要： A plurality of printing jobs associated with a printing environment can be initially evaluated. Such a printing environment can be implemented as a print shop or another lean document production environment. A set of minimal resource capacities can then be calculated as a multi-objective optimization using a linear programming (LP) analysis. Alternatively, in a generalized geometrical algorithm, at least one peak-demand production rate associated with the most critical resource can first be estimated, in response to evaluating the plurality of printing jobs. Thereafter, minimal resource capacities of the plurality of resources of the printing environment can be hierarchically calculated based on estimating the previously determined peak-demand production rate of higher priority.
摘要翻译： 可以首先评估与打印环境相关联的多个打印作业。 这样的打印环境可以被实现为打印店或其他精益文档生成环境。 然后可以使用线性规划（LP）分析将一组最小资源容量计算为多目标优化。 或者，在广义几何算法中，响应于评估多个打印作业，可以首先估计与最关键资源相关联的至少一个峰值需求生产率。 此后，可以基于估计先前确定的较高优先级的峰值需求生产率来分级计算打印环境的多个资源的最小资源容量。
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10.发明授权Systems and methods for determining spectra using fuzzy inference algorithms with measurements from LED color sensor 有权使用模糊推理算法确定光谱的系统和方法与LED颜色传感器的测量公开(公告)号：US06587793B2
公开(公告)日：2003-07-01
申请号：US09953361
申请日：2001-09-17
IPC分类号： G01N2910
CPC分类号： G01J3/28 , G01J3/501 , G01J3/524 , G01N2291/044
摘要： An LED-based spectrophotometer uses a reconstruction algorithm, based on spectral information of an illumination source and a reference spectrophotometer, to convert integrated multiple illuminant measurements from a non-fully illuminant populated color sensor into a fully populated spectral curve using a reference database. A non-linear model, such as a fuzzy inference system (FIS), is used to reconstruct spectra.
摘要翻译： 基于LED的分光光度计使用基于照明源和参考分光光度计的光谱信息的重建算法，使用参考数据库将来自非完全照明的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 使用诸如模糊推理系统（FIS）的非线性模型来重建光谱。
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