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    DUPLEX WEB PRINTER SYSTEM REGISTRATION TECHNIQUE
    63.
    发明申请
    DUPLEX WEB PRINTER SYSTEM REGISTRATION TECHNIQUE 有权
    双打网络打印机系统注册技术

    公开(公告)号：US20100329756A1

    公开(公告)日：2010-12-30

    申请号：US12491290

    申请日：2009-06-25

    申请人： Howard A. Mizes

    发明人： Howard A. Mizes

    IPC分类号： G03G15/00

    CPC分类号： G03G15/0131 ,  B41J2/2135 ,  B41J2/2146 ,  B41J3/60 ,  B41J11/46 ,  G03G15/238 ,  G03G15/6517 ,  G03G2215/0161

    摘要： A system and method for achieving registering of side 1 and side 2 images includes sensing marks on both sides of a web with a single IOWA sensor and relying on light transmission through paper to sense side 1 marks. Side 1, the side not facing the IOWA sensor utilizes increased contrast (black toner), mark width, and repeats in order to make effective image “show through.” The image of the marks on both sides of the sheet is compared with respect to each other and adjustments to some combination of position, timing, and image magnification are made as required.

    摘要翻译： 用于实现侧面1和侧面2图像的配准的系统和方法包括具有单个IOWA传感器的纤维网两侧的感测标记，并且依靠通过纸的光传输来感测侧面1标记。 侧面1，不面向IOWA传感器的一侧使用增加的对比度（黑色调色剂），标记宽度和重复，以使有效图像“显示”。将纸张两面的标记图像相对于 根据需要对位置，时间和图像放大的某些组合进行调整。

    METHODS AND SYSTEMS ACHIEVING PRINT UNIFORMITY USING REDUCED MEMORY OR COMPUTATIONAL REQUIREMENTS
    64.
    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。

    System and method for calibrating a printing system to compensate for sensor artifact using non-complementary illuminations of test patterns on an image substrate
    66.
    发明申请
    System and method for calibrating a printing system to compensate for sensor artifact using non-complementary illuminations of test patterns on an image substrate 有权
    用于校准打印系统的系统和方法，以使用图像基板上的测试图案的非互补照明来补偿传感器伪影

    公开(公告)号：US20090040261A1

    公开(公告)日：2009-02-12

    申请号：US11890879

    申请日：2007-08-08

    申请人： Yeqing Zhang ,  Howard A. Mizes ,  Luo Cheng

    发明人： Yeqing Zhang ,  Howard A. Mizes ,  Luo Cheng

    IPC分类号： B41J29/393 ,  H01J40/14

    CPC分类号： B41J29/393

    摘要： A system removes a light sensor artifact from a light sensor in a printer that is used to obtain reflectance measurements from test patterns printed on an image substrate. The system includes a print head for ejecting a plurality of pixels having a first single color in a test pattern onto an image substrate, a light source for illuminating the test pattern on the image substrate with a light, a light sensor for measuring reflectance of the first portion of the test pattern with reference to a light having a color that is non-complementary to the first single color of the test pattern, measuring reflectance of the first portion of the test pattern with reference to a light that is complementary to the first single color of the test pattern, and measuring reflectance of the second portion of the test pattern with reference to the complementary light, the second portion including an area that overlaps the first portion of the test pattern, and a sensor controller configured to scale the reflectance of the first portion measured with reference to the non-complementary light to minimize a difference between the reflectance of the first portion measured with reference to the complementary light and the reflectance of the second portion measured with reference to the complementary light in the overlapped area.

    摘要翻译： 系统从用于从印刷在图像基板上的测试图形获得反射率测量值的打印机中的光传感器去除光传感器伪影。 该系统包括用于将测试图案中的具有第一单色的多个像素喷射到图像基板上的打印头，用于用光照射图像基板上的测试图案的光源，用于测量该图像的反射率的光传感器 参考具有与测试图案的第一单色互补的颜色的光的测试图案的第一部分，参考与第一图像互补的光来测量测试图案的第一部分的反射率 测试图案的单色，并且参考互补光测量测试图案的第二部分的反射率，第二部分包括与测试图案的第一部分重叠的区域，以及被配置为缩放反射率的传感器控制器 相对于非互补光测量的第一部分，以最小化由第一部分测量的第一部分的反射率之间的差异 参考互补光和参照重叠区域中的互补光测量的第二部分的反射率。

    Active compensation of streaks using spatial filtering and feedback control
    68.
    发明授权
    Active compensation of streaks using spatial filtering and feedback control 有权
    使用空间滤波和反馈控制对条纹进行有效补偿

    公开(公告)号：US07424169B2

    公开(公告)日：2008-09-09

    申请号：US10641553

    申请日：2003-08-15

    申请人： Daniel E. Viassolo ,  Howard A. Mizes

    发明人： Daniel E. Viassolo ,  Howard A. Mizes

    IPC分类号： G06K9/40 ,  G06K15/00 ,  G06T5/00 ,  H04N1/407 ,  H04N1/409 ,  H04N1/46 ,  H04N9/64

    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。

    Systems and methods for compensating for streaks in images
    69.
    发明授权
    Systems and methods for compensating for streaks in images 有权
    用于补偿图像条纹的系统和方法

    公开(公告)号：US07125094B2

    公开(公告)日：2006-10-24

    申请号：US10739204

    申请日：2003-12-19

    申请人： Howard A. Mizes

    发明人： Howard A. Mizes

    IPC分类号： B41J29/393 ,  B41J2/47

    CPC分类号： H04N1/4015 ,  G06K15/02 ,  G06K15/027 ,  H04N1/4078

    摘要： Defects in an image forming system may give rise to visible streaks, or one-dimensional defects in an image that run parallel to the process direction. One known method for compensating for streaks introduces a separate tone reproduction curve for each pixel column in the process direction. A compensation pattern according to this invention has alignment marks before and after a halftone compensation region. The alignment marks provide alignment between the printer pixel grid and a scanning pixel grid. The line width of each alignment mark and the gray level in each pixel column of each gray level portion is measured and analyzed to produce a local tone reproduction curve for each pixel column and associated line width. The line widths of the alignment marks can be remeasured to adjust the local tone reproduction curves to compensate for the streak defect when printing.

    摘要翻译： 图像形成系统中的缺陷可能会导致可见的条纹或平行于过程方向延伸的图像中的一维缺陷。 用于补偿条纹的一种已知方法为处理方向上的每个像素列引入单独的色调再现曲线。 根据本发明的补偿图案在半色调补偿区域之前和之后具有对准标记。 对准标记提供打印机像素网格和扫描像素网格之间的对准。 测量和分析每个对准标记的线宽和每个灰度级部分的每个像素列中的灰度级，以产生每个像素列和相关线宽的局部色调再现曲线。 可以重新测量对准标记的线宽，以调整本地色调再现曲线，以补偿打印时的条纹缺陷。

    Method for identifying and verifying dash structures as candidates for test patterns and replacement patterns in an inkjet printer
    70.
    发明授权
    Method for identifying and verifying dash structures as candidates for test patterns and replacement patterns in an inkjet printer 有权
    用于在喷墨打印机中识别和验证破折号结构作为测试图案和替换图案的候选者的方法

    公开(公告)号：US08721026B2

    公开(公告)日：2014-05-13

    申请号：US12781558

    申请日：2010-05-17

    申请人： Helen HaeKyung Shin ,  Howard A. Mizes ,  Jeffrey J. Folkins ,  David A. Mantell

    发明人： Helen HaeKyung Shin ,  Howard A. Mizes ,  Jeffrey J. Folkins ,  David A. Mantell

    IPC分类号： B41J29/393

    CPC分类号： B41J29/393 ,  B41J2029/3935

    摘要： A method compensates for changes in drop velocity of drops emitted by inkjets in a printhead of an ink jet imaging device. The method includes operating inkjet ejectors in a plurality of printheads to eject ink in a pattern of structured dashes on an image receiving member, the structured dashes corresponding to a predetermined image data pattern, generating image data corresponding to the pattern of structured dashes on the image receiving member, identifying a process direction correction parameter for each ejector in the plurality of printheads with reference to the generated image data, modifying image data to be printed by the plurality of printheads with reference to the process direction correction parameter identified for at least one of the ejectors, and operating the plurality of printheads with reference to the modified image data.

    摘要翻译： 一种方法补偿喷墨成像装置的打印头中喷墨喷嘴发射的液滴速度的变化。 该方法包括在多个打印头中操作喷墨打印头，以在图像接收部件上以结构化的虚线的图案喷射墨水，对应于预定的图像数据图案的结构化的虚线，产生与图像上的结构化破折号图案相对应的图像数据 参照所生成的图像数据识别多个打印头中的每个喷射器的处理方向校正参数，参照为至少一个打印头识别的处理方向校正参数，修改由多个打印头打印的图像数据 并且参考修改的图像数据操作多个打印头。