公开(公告)号：US5602971A

公开(公告)日：1997-02-11

申请号：US437003

申请日：1995-05-08

申请人： Frank Deschuytere

发明人： Frank Deschuytere

IPC分类号： B41J2/52 ,  B41J2/40 ,  G06T5/00 ,  G06T11/60 ,  H04N1/40 ,  H04N1/46 ,  H04N1/405 ,  G06K15/02

CPC分类号： H04N1/40087

摘要： A reproduction method for continuous tone images on an output device having multilevel capabilities is described. The microdots addressable by the output device are arranged into identical tiles. The microdots in a tile get a sequence number, according to a randomised Bayer pattern for which the runlengths of microdots having low sequence numbers are reduced. The sequence is divided into five subsequences. The microdots belonging to the first three subsequences are changed exclusively to higher density levels for decreasing intensity levels, each within a specific intensity range of the input image. The microdots belonging to the last two subsequences are used to more continuously reproduce the image levels. Equivalent microdots within a tile are further differentiated by a second sequence numbering, in order to ensure smooth and precise average density transitions in reproduced continuous tones.

摘要翻译： 描述了具有多级能力的输出装置上的连续色调图像的再现方法。 由输出设备可寻址的微点被布置成相同的瓦片。 根据随机化的拜耳模式，瓦片中的微点获得序列号，其中具有低序列号的微点的游程长度减少。 序列分为五个子序列。 属于前三个子序列的微点被专门改变为较高密度水平，用于降低强度水平，每个在输入图像的特定强度范围内。 属于最后两个子序列的微点用于更连续地再现图像级别。 瓦片内的等效微点通过第二序列编号进一步区分，以确保再现的连续色调中的平滑和精确的平均密度转变。

公开(公告)号：US08368735B2

公开(公告)日：2013-02-05

申请号：US12208359

申请日：2008-09-11

申请人： Herman Van De Straete ,  Danny Smolders ,  Dirk Broddin ,  Frank Deschuytere ,  Katleen Verberck

发明人： Eric Soulliaert ,  Herman Van De Straete ,  Danny Smolders ,  Dirk Broddin ,  Frank Deschuytere

IPC分类号： B41J2/45 ,  H01L23/10 ,  H01L21/00

CPC分类号： B41J2/45 ,  G03G15/04054 ,  G03G15/326 ,  G03G2215/0409 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49175 ,  H01L2924/00014

摘要： A light emitting head for use in copiers or printers, the light emitting head having an illuminated length, e.g. a print width or copy width, and including a rigid carrier structure provided from a bulk material that spans at least the illuminated length of the head, the bulk material having a coefficient of thermal conduction larger than 100 W/mK and a coefficient of thermal expansion; a plurality of blocks of light elements arranged in a longitudinal array, the blocks having a coefficient of thermal expansion, each of the blocks of light elements having a first and a second surface, each of the blocks of light elements including a plurality of light-emitting elements exposed on a first surface on the block, the plurality of blocks being physically attached to the carrier structure by a conductive adhesive at substantially the second surfaces, and wherein the bulk material has a coefficient of thermal expansion that differs from the thermal expansion coefficient of the block material by a maximum of 5*10−6/K.

摘要翻译： 一种用于复印机或打印机的发光头，所述发光头具有照明长度，例如， 打印宽度或复印宽度，并且包括从散装材料提供的刚性载体结构，其至少跨越头部的照明长度，散装材料具有大于100W / mK的热传导系数和热膨胀系数 ; 以纵向阵列布置的多个光元件块，所述块具有热膨胀系数，每个所述光元件块具有第一和第二表面，每个所述光元件块包括多个发光元件， 暴露在块上的第一表面上的发光元件，多个块通过在基本上第二表面处的导电粘合剂物理地附接到载体结构，并且其中散装材料具有不同于热膨胀系数的热膨胀系数 的块材最大为5 * 10-6 / K。

公开(公告)号：US06160643A

公开(公告)日：2000-12-12

申请号：US376162

申请日：1995-01-20

申请人： Frank Deschuytere ,  Chris Tuijn

发明人： Frank Deschuytere ,  Chris Tuijn

IPC分类号： G03F3/08 ,  H04N1/48 ,  H04N1/60 ,  H04N7/18 ,  H04N9/11 ,  H04N9/68 ,  H04N1/46

CPC分类号： H04N1/6033 ,  H04N9/11

摘要： An apparatus and a method are disclosed for digitizing a color negative picture and correcting the image signals in a way that they are linearly related to the luminance of the photographed scene for grey tones in the scene. A second embodiment allows obtaining on the basis of the color-corrected image signals a reproduction of true color of the scene on a color display unit. For determining the correction, use is made of the characteristic system curve indicating for each of the color components the relation between the luminance of a neutral color swatch in the scene and the density sensed by the scan system. Several methods for drafting said system curve are described. Furthermore, the way of obtaining the color-corrected image signals by means of a color transformation and the way of determining the transformation are explained.

摘要翻译： 公开了一种用于数字化彩色负面图像并以与场景中的灰色调的拍摄场景的亮度线性相关的方式校正图像信号的装置和方法。 第二实施例允许基于颜色校正的图像信号获得彩色显示单元上场景的真实颜色的再现。 为了确定校正，使用特征系统曲线来指示每个颜色分量，场景中的中性色样的亮度与由扫描系统感测的浓度之间的关系。 描述用于起草所述系统曲线的几种方法。 此外，解释了通过颜色变换获得颜色校正的图像信号的方式以及确定变换的方式。

公开(公告)号：US20090115833A1

公开(公告)日：2009-05-07

申请号：US12208359

申请日：2008-09-11

申请人： Eric SOULLIAERT ,  Katleen Verberck ,  Herman Van De Straete ,  Danny Smolders ,  Dirk Broddin ,  Frank Deschuytere

发明人： Eric SOULLIAERT ,  Katleen Verberck ,  Herman Van De Straete ,  Danny Smolders ,  Dirk Broddin ,  Frank Deschuytere

IPC分类号： B41J2/45

CPC分类号： B41J2/45 ,  G03G15/04054 ,  G03G15/326 ,  G03G2215/0409 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49175 ,  H01L2924/00014

摘要： A light emitting head for use in copiers or printers, the light emitting head having an illuminated length, e.g. a print width or copy width, and including a rigid carrier structure provided from a bulk material that spans at least the illuminated length of the head, the bulk material having a coefficient of thermal conduction larger than 100 W/mK and a coefficient of thermal expansion; a plurality of blocks of light elements arranged in a longitudinal array, the blocks having a coefficient of thermal expansion, each of the blocks of light elements having a first and a second surface, each of the blocks of light elements including a plurality of light-emitting elements exposed on a first surface on the block, the plurality of blocks being physically attached to the carrier structure by a conductive adhesive at substantially the second surfaces, and wherein the bulk material has a coefficient of thermal expansion that differs from the thermal expansion coefficient of the block material by a maximum of 5*10−6/K.

摘要翻译： 一种用于复印机或打印机的发光头，所述发光头具有照明长度，例如， 打印宽度或复印宽度，并且包括从散装材料提供的刚性载体结构，其至少跨越头部的照明长度，散装材料具有大于100W / mK的热传导系数和热膨胀系数 ; 以纵向阵列布置的多个光元件块，所述块具有热膨胀系数，每个所述光元件块具有第一和第二表面，每个所述光元件块包括多个发光元件， 暴露在块上的第一表面上的发光元件，多个块通过在基本上第二表面处的导电粘合剂物理地附接到载体结构，并且其中散装材料具有不同于热膨胀系数的热膨胀系数 的块材最大为5 * 10-6 / K。

公开(公告)号：US5799137A

公开(公告)日：1998-08-25

申请号：US801600

申请日：1997-02-13

申请人： Dirk Broddin ,  Frank Deschuytere

发明人： Dirk Broddin ,  Frank Deschuytere

IPC分类号： B41J2/52 ,  G03G15/01 ,  H04N1/40 ,  H04N1/405 ,  G06K15/02

CPC分类号： H04N1/40087

摘要： A method is disclosed for rendering monochrome or colored continuous tone images by a system having restricted continuous tone rendering capabilities, such as electrographic printers capable of printing more than two density levels on each addressable micro dot. A method for preferred halftone dot growth is described, starting from isolated dots arranged along base lines and auxiliary lines, evolving to high density lines along the base lines and approximating full continuous tone rendition for high density regions. Preferred arrangements for the orientation, spacing and absolute location of the base lines and auxiliary lines are disclosed and a method to generate preferred arrangements. A moire free combination of three halftone images is described for the reproduction of color images. A method to select a restricted set of energy levels to obtain linear reflectance response is disclosed. Halftone cells are arranged in supercells to improve the density resolution of the system.

公开(公告)号：US5982989A

公开(公告)日：1999-11-09

申请号：US799335

申请日：1997-02-13

申请人： Dirk Broddin ,  Frank Deschuytere

发明人： Dirk Broddin ,  Frank Deschuytere

IPC分类号： B41J2/52 ,  G03G15/01 ,  H04N1/40 ,  H04N1/46

CPC分类号： H04N1/40087

摘要： A method is disclosed for rendering monochrome or colored continuous tone images by a system having restricted continuous tone rendering capabilities, such as electrographic printers capable of printing more than two density levels on each addressable micro dot. A method for preferred halftone dot growth is described, starting from isolated dots arranged along base lines and auxiliary lines, evolving to high density lines along the base lines and approximating full continuous tone rendition for high density regions. Preferred arrangements for the orientation, spacing and absolute location of the base lines and auxiliary lines are disclosed and a method to generate preferred arrangements. A moire free combination of three halftone images is described for the reproduction of color images. A method to select a restricted set of energy levels to obtain linear reflectance response is disclosed. Halftone cells are arranged in supercells to improve the density resolution of the system.

公开(公告)号：US5946453A

公开(公告)日：1999-08-31

申请号：US801597

申请日：1997-02-13

申请人： Dirk Broddin ,  Frank Deschuytere

发明人： Dirk Broddin ,  Frank Deschuytere

IPC分类号： H04N1/40

CPC分类号： H04N1/40087

摘要： A method is disclosed for rendering monochrome or colored continuous tone images by a system having restricted continuous tone rendering capabilities, such as electrographic printers capable of printing more than two density levels on each addressable micro dot. A method for preferred halftone dot growth is described, starting from isolated dots arranged along base lines and auxiliary lines, evolving to high density lines along the base lines and approximating full continuous tone rendition for high density regions. Preferred arrangements for the orientation, spacing and absolute location of the base lines and auxiliary lines are disclosed and a method to generate preferred arrangements. A moire free combination of three halftone images is described for the reproduction of color images. A method to select a restricted set of energy levels to obtain linear reflectance response is disclosed. Halftone cells are arranged in supercells to improve the density resolution of the system.

摘要翻译： 公开了一种用于通过具有受限连续色调呈现能力的系统来渲染单色或彩色连续色调图像的方法，诸如能够在每个可寻址微点上印刷两个以上浓度水平的电印机。 描述了用于优选半色调网点生长的方法，从沿着基线和辅助线布置的孤立点开始，沿着基线演变成高密度线并且近似于高密度区域的全连续色调再现。 公开了用于基线和辅助线的取向，间隔和绝对位置的优选布置以及产生优选布置的方法。 为了再现彩色图像，描述了三种半色调图像的无莫氏组合。 公开了一种选择限制的能级集合以获得线性反射响应的方法。 半色调细胞被布置在超级单元中以提高系统的密度分辨率。

公开(公告)号：US5901275A

公开(公告)日：1999-05-04

申请号：US430081

申请日：1995-04-27

申请人： Dirk Broddin ,  Frank Deschuytere

发明人： Dirk Broddin ,  Frank Deschuytere

IPC分类号： B41J2/52 ,  G03G15/01 ,  H04N1/40 ,  H04N1/46

CPC分类号： H04N1/40087

摘要： A method is disclosed for rendering monochrome or colored continuous tone images by a system having restricted continuous tone rendering capabilities, such as electrographic printers capable of printing more than two density levels on each addressable micro dot. A method for preferred halftone dot growth is described, starting from isolated dots arranged along base lines and auxiliary lines, evolving to high density lines along the base lines and approximating full continuous tone rendition for high density regions. Preferred arrangements for the orientation, spacing and absolute location of the base lines and auxiliary lines are disclosed and a method to generate preferred arrangements. A moire free combination of three halftone images is described for the reproduction of color images. A method to select a restricted set of energy levels to obtain linear reflectance response is disclosed. Halftone cells are arranged in supercells to improve the density resolution of the system.

摘要翻译： 公开了一种用于通过具有受限连续色调呈现能力的系统来渲染单色或彩色连续色调图像的方法，诸如能够在每个可寻址微点上印刷两个以上浓度水平的电印机。 描述了用于优选半色调网点生长的方法，从沿着基线和辅助线布置的孤立点开始，沿着基线演变成高密度线并且近似于高密度区域的全连续色调再现。 公开了用于基线和辅助线的取向，间隔和绝对位置的优选布置以及产生优选布置的方法。 为了再现彩色图像，描述了三种半色调图像的无莫氏组合。 公开了一种选择限制的能级集合以获得线性反射响应的方法。 半色调细胞被布置在超级单元中以提高系统的密度分辨率。

公开(公告)号：US07583920B2

公开(公告)日：2009-09-01

申请号：US11545453

申请日：2006-10-11

申请人： Werner Willemsens ,  Erik Van Waverberg ,  Herman Van De Straete ,  Romain Van Der Gucht ,  Frank Deschuytere

发明人： Werner Willemsens ,  Erik Van Waverberg ,  Herman Van De Straete ,  Romain Van Der Gucht ,  Frank Deschuytere

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0158

摘要： The present invention provides improved electrostatographic single-pass multiple station printers as well as methods of operating the same being able to avoid displacement of different color images by effects of the toner coverage of the printed pages. To obtain this, a main encoder means (50) and a printing medium advancement measurement means (60a) are provided, the main encoder means (50) for producing a first signal (501) indicative of printing medium displacement and the printing medium advancement measurement means (60a) for providing a second signal (601) representative of printing medium advancement. The printing medium advancement measurement means (60a) is adapted to co-operate with the main encoder means (50) for automatic adjustment of said first signal (501) using said second signal (601).

摘要翻译： 本发明提供了改进的静电单通道多台打印机以及操作该打印机的方法，其能够通过打印页面的调色剂覆盖的影响避免不同颜色图像的移位。 为了获得这一点，提供了主编码器装置（50）和打印介质提前测量装置（60a），主编码器装置（50）用于产生指示打印介质位移的第一信号（501）和打印介质提前测量 用于提供表示打印介质进给的第二信号（601）的装置（60a）。 打印介质提前测量装置（60a）适于与主编码器装置（50）协作，用于使用所述第二信号（601）自动调整所述第一信号（501）。

公开(公告)号：US20070092309A1

公开(公告)日：2007-04-26

申请号：US11545453

申请日：2006-10-11

申请人： Werner Willemsens ,  Erik Van Weverberg ,  Herman Van De Straete ,  Romain Van Der Gucht ,  Frank Deschuytere

发明人： Werner Willemsens ,  Erik Van Weverberg ,  Herman Van De Straete ,  Romain Van Der Gucht ,  Frank Deschuytere

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0158

摘要： The present invention provides improved electrostatographic single-pass multiple station printers as well as methods of operating the same being able to avoid displacement of different colour images by effects of the toner coverage of the printed pages. To obtain this, a main encoder means (50) and a printing medium advancement measurement means (60a) are provided, the main encoder means (50) for producing a first signal (501) indicative of printing medium displacement and the printing medium advancement measurement means (60a) for providing a second signal (601) representative of printing medium advancement. The printing medium advancement measurement means (60a) is adapted to co-operate with the main encoder means (50) for automatic adjustment of said first signal (501) using said second signal (601).

摘要翻译： 本发明提供了改进的静电单通道多台打印机以及操作该打印机的方法，其能够通过打印页面的调色剂覆盖的影响避免不同颜色图像的移位。 为了获得这一点，提供了主编码器装置（50）和打印介质进给测量装置（60a），主编码器装置（50）用于产生指示打印介质位移的第一信号（501）和打印介质前进 用于提供代表打印介质进给的第二信号（601）的测量装置（60a）。 打印介质提前测量装置（60a）适于与主编码器装置（50）协作，用于使用所述第二信号（601）自动调整所述第一信号（501）。