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公开(公告)号：BR0203733A
公开(公告)日：2003-06-03
申请号：BR0203733
申请日：2002-09-16
Applicant: XEROX CORP
Inventor： VIASSOLO DANIEL E , MESTHA LALITH K
Abstract: 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.
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2.发明专利
公开(公告)号：CA2507816A1
公开(公告)日：2005-11-25
申请号：CA2507816
申请日：2005-05-18
Applicant: XEROX CORP
Inventor： GROSS ERIC M , THOMPSON MICHAEL D , VIASSOLO DANIEL E , LANGE CLARK V , XIAO FEI , HAMBY ERIC S , VITURRO R ENRIQUE
Abstract: 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.
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公开(公告)号：DE60232123D1
公开(公告)日：2009-06-10
申请号：DE60232123
申请日：2002-09-17
Applicant: XEROX CORP
Inventor： VIASSOLO DANIEL E , MESTHA LALIT K
Abstract: 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.
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公开(公告)号：BR0203733B1
公开(公告)日：2014-11-04
申请号：BR0203733
申请日：2002-09-16
Applicant: XEROX CORP
Inventor： MESTHA LALITH K , VIASSOLO DANIEL E
Abstract: 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.
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Patent Agency Ranking5.发明专利
公开(公告)号：CA2507816C
公开(公告)日：2012-07-10
申请号：CA2507816
申请日：2005-05-18
Applicant: XEROX CORP
Inventor： HAMBY ERIC S , GROSS ERIC M , VIASSOLO DANIEL E , THOMPSON MICHAEL D , VITURRO R ENRIQUE , XIAO FEI , LANGE CLARK V
Abstract: 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.
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公开(公告)号：BRPI0501938A
公开(公告)日：2006-01-24
申请号：BRPI0501938
申请日：2005-05-24
Applicant: XEROX CORP
Inventor： HAMBY ERIC S , GROSS ERIC M , VIASSOLO DANIEL E , THOMPSON MICHAEL D , VITURRO ENRIQUE , XIAO FEI , LANGE CLARK V
Abstract: 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 (S1220) determining a toner density on the receiving member, (S1230) automatically determining the extent of banding on the receiving member by comparing the determined toner density to a reference toner density value, and (S1240) 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 (S1260) automatically adjusting the toner density being performed using a feedback and/or feedforward control routine or application.
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7.发明专利System and method for correcting horizontal stripe defect utilizing feedback/feedforward control 审中-公开用于校正反馈/反馈控制的水平条纹缺陷的系统和方法
公开(公告)号：JP2005338826A
公开(公告)日：2005-12-08
申请号：JP2005146651
申请日：2005-05-19
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： HAMBY ERIC S , GROSS ERIC M , VIASSOLO DANIEL E , THOMPSON MICHAEL D , VITURRO R ENRIQUE , XIAO FEI , LANGE CLARK V
CPC classification number: G03G15/5062
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for adjusting a horizontal stripe defect on an image receiving member in an image generating stage or a printing stage by utilizing the technique of at least either feedback control or feedforward control. SOLUTION: The method for adjusting the horizontal stripe defect on the image receiving member in the image generating stage or the printing stage includes (a) a stage in which toner density on the image receiving member is decided, (b) a stage in which the decided toner density is compared with a reference toner density value so as to automatically decide the extent of the horizontal stripe on the image receiving member, and (c) a stage in which the toner density is automatically adjusted based on the result obtained by comparing the measured toner density with the reference toner density value. In the method, the routine or the application of at least either the feedback control or the feedforward control is used to perform processing to automatically decide the extent of the horizontal stripe and processing to automatically adjust the toner density. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种通过利用至少反馈控制或前馈控制的技术来调整图像生成阶段或打印阶段中的图像接收部件上的水平条纹缺陷的系统和方法。 解决方案：用于调整图像生成阶段或印刷阶段中的图像接收部件上的水平条纹缺陷的方法包括：（a）确定图像接收部件上的调色剂浓度的阶段，（b）阶段 其中将确定的调色剂浓度与参考调色剂浓度值进行比较，以便自动确定图像接收部件上的水平条纹的程度，以及（c）基于获得的结果自动调节调色剂浓度的阶段 通过将测量的调色剂浓度与参考调色剂浓度值进行比较。 在该方法中，使用反馈控制或前馈控制中的至少一个程序或应用程序进行处理以自动确定水平条纹的程度并自动调节调色剂浓度。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2004216894A
公开(公告)日：2004-08-05
申请号：JP2004002644
申请日：2004-01-08
Applicant: Xerox Corp , ゼロックス コーポレイションXerox Corporation
Inventor： MIZES HOWARD A , VIASSOLO DANIEL E
CPC classification number: G06K15/1247 , G06K15/027 , H04N1/4015
Abstract: PROBLEM TO BE SOLVED: To provide a method for adjusting the printing uniformity of a xerographic device. SOLUTION: The method for adjusting the printing uniformity of a xerographic device with an LED print bar includes a step 24 for printing, on a target medium, test pattern lines related to respective LEDs of the LED print bar, in a processing direction of the xerographic device, a step for transferring the target medium having the printed test pattern lines, a step 25 for detecting the test pattern lines printed by scanning the target medium, a step for transmitting the information of the detected test pattern lines to a computer, a step 26 for determining metrics measured by the information of the detected test pattern lines, a step 27 for calculating the difference between the measured metrics and a target value, and a step 28 for adjusting the current supplied to respective LEDs related to the test pattern lines for reducing the difference when the absolute value of the difference exceeds a first specified threshold value. COPYRIGHT: (C)2004,JPO&NCIPI
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9.发明专利
公开(公告)号：JP2003106900A
公开(公告)日：2003-04-09
申请号：JP2002264230
申请日：2002-09-10
Applicant: XEROX CORP
Inventor： VIASSOLO DANIEL E , MESTHA LALIT K
Abstract: PROBLEM TO BE SOLVED: To determine a spectrum based on a non-spectrum input using a reference database including a reflected spectrum and a training sample indicating an LED sensor output corresponding to the reflected spectrum. SOLUTION: The spectrophotometer of an LED base uses reconstructing algorithm based on a reference spectrophotometer and the spectrum information of light emitting source, and then converts the measurement of an integrated multiple light emitting body from a color sensor with a mounted non-full light emitting body to a fully mounted spectrum curve. A non-linear model such as a fuzzy inference system FIS is used to reconstruct the spectrum.
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