专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5858589A Intensity modulated stochastic screening for preparing a lithographic printing plate 失效
标题翻译：强度调制随机筛选制备平版印刷版
公开(公告)号：US5858589A
公开(公告)日：1999-01-12
申请号：US618679
申请日：1996-03-20
申请人： Rene Govaert , Paul Delabastita , Jacobus Bosschaerts
发明人： Rene Govaert , Paul Delabastita , Jacobus Bosschaerts
IPC分类号： B41C1/00 , B41C1/10 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03F7/20
CPC分类号： G03F7/07 , B41C1/1083 , H04N1/4051
摘要： A method for making a lithographic printing plate from an original containing multiple tones comprising the steps of frequency modulation screening the multiple image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on a lithographic printing plate precursor having a surface capable of being differentiated in ink accepting and ink repellant areas upon scanwise exposure and an optional development step, by means of a scanwise exposure, wherein the scanwise exposure for rendering a halftone dot is intensity modulated.
摘要翻译：一种从包含多个色调的原稿制作平版印刷版的方法，包括以下步骤：对所述多个图像进行频率调制筛选以获得表示所述多色调图像的色调的筛选数据; 通过扫描曝光在平版印刷版原版上再现半色调点，该平版印刷版原版具有在扫描曝光和可选显影步骤时具有能够在接受油墨和拒墨区域中区分的表面的平版印刷版，其中用于渲染半色调点的扫描曝光是强度调制。

2. 发明授权

US5677093A Size modulated stochastic screening 失效
标题翻译：大小调制随机筛选
公开(公告)号：US5677093A
公开(公告)日：1997-10-14
申请号：US618680
申请日：1996-03-20
申请人： Paul Delabastita , Jacobus Bosschaerts , Rene Govaert
发明人： Paul Delabastita , Jacobus Bosschaerts , Rene Govaert
IPC分类号： B41C1/00 , B41C1/10 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03F7/20
CPC分类号： B41C1/1083 , G03F7/07 , H04N1/4051
摘要： A method for generating a screened reproduction of a multiple tone image comprises the steps of frequency modulation or stochastic screening the multiple image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on an imaging element by means of a scanwise exposure, wherein the size or composition of the halftone dot is modulated, by varying the number of microdots (or rels) composing a halftone dot.
摘要翻译：用于产生多色调图像的屏蔽再现的方法包括频率调制或随机筛选多个图像以获得表示以色调点为基础的多色调图像的色调的屏幕数据的步骤; 通过扫描曝光在成像元件上再现半色调点，其中通过改变构成半色调点的微点数（或相关度）来调制半色调点的大小或组成。

3. 发明授权

US5700610A Time modulated stochastic screening 失效
标题翻译：时间调制随机筛选
公开(公告)号：US5700610A
公开(公告)日：1997-12-23
申请号：US618681
申请日：1996-03-20
申请人： Jacobus Bosschaerts , Rene Govaert , Paul Delabastita
发明人： Jacobus Bosschaerts , Rene Govaert , Paul Delabastita
IPC分类号： B41C1/00 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03C5/08 , G03F7/20
CPC分类号： G03F7/07 , H04N1/4051
摘要： A method for generating a screened reproduction of a multiple tone image comprising the steps of frequency modulation screening the multiple tone image to obtain screened data representing tones of the multiple tone image in terms of halftone dots, reproducing the halftone dots on an imaging element by means of a scanwise exposure, characterized in that the scanwise exposure for rendering a halftone dot is time modulated.
摘要翻译：一种用于产生多色调图像的屏蔽再现的方法，包括以下步骤：对所述多色调图像进行频率调制筛选，以获得表示所述多色调图像的色调的屏幕数据，以半色调点为基准，通过装置再现成像元件上的半色调点的扫描曝光，其特征在于用于渲染半色调点的扫描曝光被时间调制。

4. 发明授权

US5783356A Halftone reproduction by single spot multibeam laser recording 失效
标题翻译：通过单点多波束激光记录进行半色调再现
公开(公告)号：US5783356A
公开(公告)日：1998-07-21
申请号：US812451
申请日：1997-03-06
申请人： Jacobus Bosschaerts , Robert Overmeer , Paul Delabastita , Johan Van Hunsel
发明人： Jacobus Bosschaerts , Robert Overmeer , Paul Delabastita , Johan Van Hunsel
IPC分类号： G03F7/07 , G03F7/20 , H04N1/40 , G03F7/22
CPC分类号： G03F7/2053 , G03F7/07 , H04N1/40037 , Y10S430/146
摘要： A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.
摘要翻译：用于产生连续色调图像的屏蔽再现的方法包括以下步骤：筛选连续色调图像以获得表示连续色调图像的色调的屏幕数据，并且适合于在辐射敏感成像元件上驱动微点的曝光; 根据所筛选的数据通过至少一组或多个（p）辐射束（b）暴露微点，其特征在于，在所述一组辐射束中的至少两个辐射束撞击在扫描线（1）的特定微点（m）。特别是描述了一种制备包含上述步骤的平版印刷版的方法。

5. 发明授权

US5884013A Autotypical screening with optimised dotshape 失效
标题翻译：自动特征筛选，优化点形
公开(公告)号：US5884013A
公开(公告)日：1999-03-16
申请号：US747940
申请日：1996-11-12
申请人： Jacobus Bosschaerts , Johan Vanhunsel , Jan Van Cauwenberge , Paul Delabastita
发明人： Jacobus Bosschaerts , Johan Vanhunsel , Jan Van Cauwenberge , Paul Delabastita
IPC分类号： B41J2/52 , G03F5/00 , G03F7/07 , G06T5/00 , H04N1/405 , H04N1/52 , G06K15/02 , H04N1/23
CPC分类号： H04N1/4055
摘要： A method for generating a screened reproduction of a multiple tone image comprises the steps of autotypical or amplitude modulation screening the multiple tone image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on an imaging element by means of a scan-wise exposure by means of a laser or a LED, wherein in extreme regions of the tone scale the shape of the halftone dots is compact, characterized in that the halftone dots have a ratio of peripheral length to surface area which is minimal.
摘要翻译：一种用于产生多色调图像的屏蔽再现的方法包括以下步骤：自动特征或幅度调制屏蔽多色调图像，以获得表示以色调点为基础的多色调图像色调的屏幕数据; 通过借助于激光或LED的扫描式曝光在成像元件上再现半色调点，其中在色阶的极端区域中，网版点的形状是紧凑的，其特征在于，网版点具有周边长度与表面积的比值最小。

6. 发明授权

US06376138B1 Rendering of continuous tone images by reducing clustering of halftone dots 失效
标题翻译：通过减少半色调点聚类来渲染连续色调图像
公开(公告)号：US06376138B1
公开(公告)日：2002-04-23
申请号：US09169587
申请日：1998-10-09
申请人： Bart Horsten , Paul Delabastita , Jacobus Bosschaerts , Luc Schellekens
发明人： Bart Horsten , Paul Delabastita , Jacobus Bosschaerts , Luc Schellekens
IPC分类号： G03C508
CPC分类号： H04N1/4051 , B41M5/26 , G03C1/4989 , G03F5/00
摘要： Growth and clustering of halftone dots is a drawback in the reproduction of halftoned continuous tone images on prior art recording materials. Certain thermographic materials show a local microdot shrink effect called negative cross-talk upon neighboring microdots when exposing a microdot. Exposing these materials according to the frequency modulated halftone data of an image results in better tone rendering and lower noise due to lower dot clustering or negative cross-talk characteristics.
摘要翻译：半色调点的生长和聚集是在现有技术记录材料上再现半色调连续色调图像的缺点。当暴露微点时，某些热成像材料显示当地的微点收缩效应，称为相邻微点上的负串扰。根据图像的频率调制半色调数据曝光这些材料会导致更好的色调渲染，并且由于较低的点聚类或负串扰特性导致较低的噪声。

7. 发明授权

US07342685B2 Constraint correlation for computer to plate inkjet system 失效
标题翻译：计算机对板式喷墨系统的约束相关性
公开(公告)号：US07342685B2
公开(公告)日：2008-03-11
申请号：US10667250
申请日：2003-09-17
申请人： Luc Minnebo , Koen Vande Velde , Paul Delabastita
发明人： Luc Minnebo , Koen Vande Velde , Paul Delabastita
IPC分类号： G06F15/00
CPC分类号： H04N1/52 , H04N1/4052
摘要： Printing masters are produced by use of an inkjet printing system.The smallest halftone dot size which can be printed by the inkjet printing system is larger than the size of a pixel of the recording grid defined by the addressability of the printing device.Inferior image quality and graininess caused by standard error diffusion algorithms in this system can be counteracted by using a constraint correlation error diffusion system.Out of the complete set of all possible intensity level combinations for reproducing a pixel a subset is selected based upon the multilevel halftoning process of a quantized scalar value which is a function of at least one of the input pixel values of the corresponding colour component pixels.Preferably the scalar value represents the brightness or ink amount allocations.
摘要翻译：印刷大师通过使用喷墨打印系统生产。可以由喷墨打印系统打印的最小的半色调点尺寸大于由打印设备的可寻址性定义的记录格栅的像素的尺寸。通过使用约束相关误差扩散系统可以抵消在该系统中由标准误差扩散算法引起的较差图像质量和粒度。在用于再现像素的所有可能的强度级组合的完整集合中，基于作为相应颜色分量像素的输入像素值的函数的量化标量值的多级半色调处理来选择子集。优选地，标量值表示亮度或墨水量分配。

8. 发明授权

US5903713A Moire free multilevel halftoning of color images 失效
标题翻译：彩色图像的无水多色半色调
公开(公告)号：US5903713A
公开(公告)日：1999-05-11
申请号：US640593
申请日：1996-05-01
申请人： Katrien Daels , Paul Delabastita
发明人： Katrien Daels , Paul Delabastita
IPC分类号： B41J2/52 , B41J2/525 , B41M1/14 , G03G15/01 , H04N1/40 , G06F15/00
CPC分类号： H04N1/40087 , H04N1/40081
摘要： A halftone screen is presented for use in combination with reproduction devices that are capable of rendering more than two tone levels. The screen is optimized to minimize both tone and color shift in the presence of variations in the printing process. The intermediate density levels, which are assigned to a minority of the microdots within each halftone cell, are different within adjacent halftone cells. FIG. 9
摘要翻译：呈现半色调屏幕，与再现设备相结合，能够呈现超过两个音调级别。优化屏幕以在存在印刷过程中的变化的情况下最小化色调和颜色偏移。分配给每个半色调细胞内少部分微点的中间密度水平在相邻半色调细胞内是不同的。图。

9. 发明授权

US07742058B2 Method for selecting a color transformation 有权
标题翻译：选择颜色变换的方法
公开(公告)号：US07742058B2
公开(公告)日：2010-06-22
申请号：US11657317
申请日：2007-01-24
申请人： Marc Mahy , Paul Delabastita
发明人： Marc Mahy , Paul Delabastita
IPC分类号： G09G5/02
CPC分类号： H04N1/6052 , H04N1/6011
摘要： An output color profile, such as an ICC output profile, contains a look-up table to separate the color of a pixel, for example a CIELAB color, into a set of colorant values, for example CMYK colorants. In practice, most CMYK images have been separated using one of a limited set of standardized output profiles. The problem to be solved is guessing which one of these standardized output profiles has been used to separate a specific image. For this purpose the CMYK values of the image are analyzed. The analysis involves calculating a distance in the CMYK space between the CMYK values of an image, and the CMYK values produced by different output profiles. A profile is selected based on these distances, for example by selecting the profile yielding the shortest distance. This profile is then used for converting the CMYK colorant values of the image into CIELAB color values.
摘要翻译：诸如ICC输出配置文件的输出颜色配置文件包含用于将像素的颜色（例如CIELAB颜色）分离成一组着色剂值的查找表，例如CMYK着色剂。在实践中，大多数CMYK图像已经使用有限的一组标准输出曲线之一进行分离。要解决的问题是猜测这些标准化输出配置文件中的哪一个已被用于分离特定图像。为此，分析图像的CMYK值。该分析涉及计算图像的CMYK值之间的CMYK空间中的距离和由不同的输出轮廓产生的CMYK值。基于这些距离选择轮廓，例如通过选择产生最短距离的轮廓。然后使用该配置文件将图像的CMYK着色剂值转换为CIELAB颜色值。

10. 发明授权

US5808755A Toner dependent rosette structures in multi-layer screening by phase modulation 失效
标题翻译：通过相位调制在多层筛选中调色剂依赖玫瑰花结构
公开(公告)号：US5808755A
公开(公告)日：1998-09-15
申请号：US430008
申请日：1995-04-27
申请人： Paul Delabastita
发明人： Paul Delabastita
IPC分类号： G03F5/00 , G03F5/22 , H04N1/405 , H04N1/52
CPC分类号： H04N1/52 , H04N1/4058
摘要： A screening system comprises at least one screen of which the phase is tone or image level dependent. This tone dependent phase shift influences the rosette structure and can be used to improve the neutral balance and colour fidelity in multi-colour reproduction and to minimise the visibility of such rosette structures in highlight and shadow areas.
摘要翻译：筛选系统包括至少一个屏幕，其相位是色调或图像级别依赖。这种依赖于色调的相移影响玫瑰花结构，并且可以用于改善多色再现中的中性平衡和色彩保真度，并且使突出和阴影区域中的这种玫瑰花结构的可视性最小化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式