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    Measurement and control of high frequency banding in a marking system
    3.
    发明授权
    Measurement and control of high frequency banding in a marking system 有权
    标记系统中高频带测量与控制

    公开(公告)号：US07283143B2

    公开(公告)日：2007-10-16

    申请号：US10852243

    申请日：2004-05-25

    申请人： Howard A. Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert P. Loce ,  Michael D. Thompson ,  Eric S. Hamby ,  R. Enrique Viturro

    发明人： Howard A. Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert P. Loce ,  Michael D. Thompson ,  Eric S. Hamby ,  R. Enrique Viturro

    IPC分类号： G03G21/00

    CPC分类号： H04N1/00002 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087

    摘要： A method of measuring and controlling high frequency banding, the method includes creating a test pattern, sensing the test pattern with optical sensors, determining a beat frequency based on the sensed test pattern, and determining the frequency, phase and amplitude of high frequency banding based on the beat frequency. An exemplary embodiment of a feedback control method for controlling high frequency banding includes creating a test pattern, sensing the test pattern with optical sensors, measuring high frequency banding and adjusting the imaging parameters based on the measured high frequency banding in order to decrease the extent of high frequency banding. Moreover, an exemplary embodiment of a system for measuring high frequency banding includes an image marking device having a receiving member, optical sensors arranged on the receiving member, and a controller that is functionally coupled to the optical sensors and to the marking device.

    摘要翻译： 一种测量和控制高频带的方法，该方法包括创建测试图案，用光学传感器感测测试图案，基于感测到的测试图案确定拍频，以及确定基于高频带的频率，相位和幅度 在拍频上 用于控制高频带的反馈控制方法的示例性实施例包括创建测试图案，用光学传感器感测测试图案，测量高频带并基于所测量的高频带来调整成像参数，以便降低 高频带。 此外，用于测量高频带的系统的示例性实施例包括具有接收构件的图像标记装置，布置在接收构件上的光学传感器以及功能上耦合到光学传感器和标记装置的控制器。

    Motion quality error detection in printing systems using documents having text or line content
    8.
    发明授权
    Motion quality error detection in printing systems using documents having text or line content 有权
    使用具有文本或行内容的文档的打印系统中的运动质量错误检测

    公开(公告)号：US08649566B2

    公开(公告)日：2014-02-11

    申请号：US12838942

    申请日：2010-07-19

    申请人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

    发明人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

    IPC分类号： G06K9/00 ,  G06K9/03 ,  G06K9/20

    CPC分类号： H04N1/00002 ,  G06K9/036 ,  H04N1/00018 ,  H04N1/00047 ,  H04N1/00084

    摘要： A method for detecting motion quality error of printed documents having text in a printing system includes: printing a document having text lines, each text line comprising a plurality of characters; scanning the printed document to generate a scanned image; detecting positions in a process direction of the printing system of one of text lines and characters in the scanned image; determining position errors in the process direction in the printed document based on the detected positions in the scanned image; determining at least one motion quality defect of the printing system in the process direction based on the determined position errors; and initiating an activity associated with said printing system in response to a motion quality error having been determined. A system for detecting motion quality error of printed documents is also disclosed.

    摘要翻译： 一种用于检测在打印系统中具有文本的打印文档的运动质量错误的方法，包括：打印具有文本行的文档，每个文本行包括多个字符; 扫描打印文档以生成扫描图像; 检测所述扫描图像中的文本行和文字之一的所述打印系统的处理方向的位置; 基于扫描图像中检测到的位置确定打印文档中的处理方向上的位置误差; 基于所确定的位置误差，确定所述打印系统在所述处理方向上的至少一个运动质量缺陷; 以及响应于已经确定的运动质量错误，发起与所述打印系统相关联的活动。 还公开了一种用于检测打印文件的运动质量误差的系统。

    MOTION QUALITY ERROR DETECTION IN PRINTING SYSTEMS USING DOCUMENTS HAVING TEXT OR LINE CONTENT
    9.
    发明申请
    MOTION QUALITY ERROR DETECTION IN PRINTING SYSTEMS USING DOCUMENTS HAVING TEXT OR LINE CONTENT 有权
    使用文本或行内容的文件在打印系统中的运动质量错误检测

    公开(公告)号：US20120014566A1

    公开(公告)日：2012-01-19

    申请号：US12838942

    申请日：2010-07-19

    申请人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

    发明人： Beilei Xu ,  Wencheng Wu ,  Peter Paul ,  Palghat Ramesh

    IPC分类号： G06K9/00

    CPC分类号： H04N1/00002 ,  G06K9/036 ,  H04N1/00018 ,  H04N1/00047 ,  H04N1/00084

    摘要： A method for detecting motion quality error of printed documents having text in a printing system includes: printing a document having text lines, each text line comprising a plurality of characters; scanning the printed document to generate a scanned image; detecting positions in a process direction of the printing system of one of text lines and characters in the scanned image; determining position errors in the process direction in the printed document based on the detected positions in the scanned image; determining at least one motion quality defect of the printing system in the process direction based on the determined position errors; and initiating an activity associated with said printing system in response to a motion quality error having been determined. A system for detecting motion quality error of printed documents is also disclosed.

    摘要翻译： 一种用于检测在打印系统中具有文本的打印文档的运动质量错误的方法，包括：打印具有文本行的文档，每个文本行包括多个字符; 扫描打印文档以生成扫描图像; 检测所述扫描图像中的文本行和文字之一的所述打印系统的处理方向的位置; 基于扫描图像中检测到的位置确定打印文档中的处理方向上的位置误差; 基于所确定的位置误差，确定所述打印系统在所述处理方向上的至少一个运动质量缺陷; 以及响应于已经确定的运动质量错误，发起与所述打印系统相关联的活动。 还公开了一种用于检测打印文件的运动质量误差的系统。

    Method and apparatus for slow scan magnification adjustment using non-redundant overwriting
    10.
    发明授权
    Method and apparatus for slow scan magnification adjustment using non-redundant overwriting 有权
    使用非冗余重写进行慢扫描放大调整的方法和装置

    公开(公告)号：US08610944B2

    公开(公告)日：2013-12-17

    申请号：US12336654

    申请日：2008-12-17

    申请人： Beilei Xu ,  Robert P. Loce ,  Jess R. Gentner

    发明人： Beilei Xu ,  Robert P. Loce ,  Jess R. Gentner

    IPC分类号： G06K15/02 ,  H04N1/04 ,  G06T5/00 ,  G06K9/40 ,  G03F9/00

    CPC分类号： G06K15/02 ,  B41J11/008 ,  B41J11/009

    摘要： A method of achieving process-direction sub-raster magnification adjustment using non-redundant overwriting. The raster imager provides overwriting while the image path provides non-redundant data for each pass according to the desired magnification adjustment. The same laser power level can be used for the multiple writes, or optionally, it may be varied to further improve spatial resolution of the adjustment.

    摘要翻译： 使用非冗余重写实现过程方向子光栅放大调整的方法。 光栅成像器提供覆盖，而图像路径根据期望的放大倍数调整为每次通过提供非冗余数据。 相同的激光功率水平可以用于多次写入，或者可选地，其可以被改变以进一步改善调整的空间分辨率。