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1. 发明授权

US06377262B1 Rendering sub-pixel precision characters having widths compatible with pixel precision characters 有权
标题翻译：渲染具有与像素精度字符兼容的宽度的子像素精度字符
公开(公告)号：US06377262B1
公开(公告)日：2002-04-23
申请号：US09546062
申请日：2000-04-10
申请人： Gregory C. Hitchcock , Beat Stamm , Claude Betrisey , Matt Conway
发明人： Gregory C. Hitchcock , Beat Stamm , Claude Betrisey , Matt Conway
IPC分类号： G09G500
CPC分类号： G06T11/203 , G06F17/214 , G09G5/227 , G09G2340/0457
摘要： Image data processing and image rendering methods and systems whereby images are displayed on display devices having pixels with separately controllable pixel sub-components. Images, such as text characters, are displayed on a display device with at least some features being rendered with sub-pixel precision. The displayed advance width of a character displayed with sub-pixel precision is compatible with the advance width of the character if it had instead been displayed with a conventional full pixel precision rendering process. Thus, characters are displayed with sub-pixel precision, resulting in improved resolution and readability, while the advance width and the corresponding size and spacing of the characters and the overall formatting of the document remains the same compared to documents and characters rendered using conventional full pixel precision processes. The sub-pixel precision rendering process also involves mapping spatially different sets of one or more samples of the image data to individual pixel sub-components rather than to full pixels.
摘要翻译：图像数据处理和图像渲染方法和系统，其中图像被显示在具有可分开控制的像素子组件的像素的显示装置上。诸如文本字符的图像被显示在具有以子像素精度呈现的至少一些特征的显示设备上。如果以传统的全像素精度渲染处理显示，则以子像素精度显示的字符的显示的前进宽度与字符的前进宽度兼容。因此，以子像素精度显示字符，导致改进的分辨率和可读性，而与文献和使用传统的全文所呈现的文档和字符相比，字符的前进宽度和相应的字符大小和间距以及文档的整体格式保持不变像素精密处理。子像素精度渲染过程还涉及将空间上不同的图像数据样本集合映射到各个像素子分量而不是全像素。

2. 发明授权

US07148893B2 Automatic optimization of the position of stems of text characters 有权
标题翻译：自动优化文字字符的位置
公开(公告)号：US07148893B2
公开(公告)日：2006-12-12
申请号：US11166924
申请日：2005-06-24
申请人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
发明人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
IPC分类号： G06T11/00
CPC分类号： G06T11/203 , G09G3/3607 , G09G5/02 , G09G5/24 , G09G5/28 , G09G2340/0457
摘要： Automatically positioning of typographical features, such as vertical stems or horizontal segments of a character, on high contrast pixel sub-component boundaries as part of a rendering process that uses separately controllable pixel sub-components of pixels to represent different portions of the character. In order to identify the typographical features of the character that are to be aligned with high contrast pixel sub-component boundaries, topology of the character is analyzed at runtime. In display devices having vertical stripes of same-colored pixel sub-components, character legibility is increased when the left edges of stems are aligned with high contrast boundaries between pixel sub-components. Processing time and resources are conserved by performing a partial, rather than a full, topological analysis of the character. For example, some font files include data structures that define the position of key control points associated with the character, thereby indicating where the stems or other typographical features are located, and the relationship between different typographical features.
摘要翻译：在高对比度像素子组件边界上自动定位诸如垂直杆或字符的水平段的排版特征，作为使用单独可控的像素子组件来表示角色的不同部分的渲染过程的一部分。为了识别要与高对比度像素子分量边界对齐的字符的印刷特征，在运行时分析字符的拓扑。在具有相同颜色像素子分量的垂直条纹的显示装置中，当茎的左边缘与像素子部件之间的高对比度边界对准时，字符易读性增加。通过对字符执行部分而不是完整的拓扑分析来节省处理时间和资源。例如，一些字体文件包括定义与该字符相关联的关键控制点的位置的数据结构，从而指示茎或其他印刷特征位于何处以及不同印刷特征之间的关系。

3. 发明授权

US06950103B2 Automatic optimization of the position of stems of text characters 失效
标题翻译：自动优化文字字符的位置
公开(公告)号：US06950103B2
公开(公告)日：2005-09-27
申请号：US10606047
申请日：2003-06-24
申请人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
发明人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
IPC分类号： G09G3/36 , G06T11/00 , G06T11/20 , G09G3/20 , G09G5/00 , G09G5/02 , G09G5/24 , G09G5/28 , G09G9/36
CPC分类号： G06T11/203 , G09G3/3607 , G09G5/02 , G09G5/24 , G09G5/28 , G09G2340/0457
摘要： Automatically positioning of typographical features, such as vertical stems or horizontal segments of a character, on high contrast pixel sub-component boundaries as part of a rendering process that uses separately controllable pixel sub-components of pixels to represent different portions of the character. In order to identify the typographical features of the character that are to be aligned with high contrast pixel sub-component boundaries, topology of the character is analyzed at runtime. In display devices having vertical stripes of same-colored pixel sub-components, character legibility is increased when the left edges of stems are aligned with high contrast boundaries between pixel sub-components. Processing time and resources are conserved by performing a partial, rather than a full, topological analysis of the character. For example, some font files include data structures that define the position of key control points associated with the character, thereby indicating where the stems or other typographical features are located, and the relationship between different typographical features.
摘要翻译：在高对比度像素子组件边界上自动定位诸如垂直杆或字符的水平段的排版特征，作为使用单独可控的像素子组件来表示角色的不同部分的渲染过程的一部分。为了识别要与高对比度像素子分量边界对齐的字符的印刷特征，在运行时分析字符的拓扑。在具有相同颜色像素子分量的垂直条纹的显示装置中，当茎的左边缘与像素子部件之间的高对比度边界对准时，字符易读性增加。通过对字符执行部分而不是完整的拓扑分析来节省处理时间和资源。例如，一些字体文件包括定义与该字符相关联的关键控制点的位置的数据结构，从而指示茎或其他印刷特征位于何处以及不同印刷特征之间的关系。

4. 发明授权

US06597360B1 Automatic optimization of the position of stems of text characters 有权
标题翻译：自动优化文字字符的位置
公开(公告)号：US06597360B1
公开(公告)日：2003-07-22
申请号：US09546139
申请日：2000-04-10
申请人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
发明人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey , Matt Conway
IPC分类号： G09G936
CPC分类号： G06T11/203 , G09G3/3607 , G09G5/02 , G09G5/24 , G09G5/28 , G09G2340/0457
摘要： The present invention provides for automatic placement of typographical features such as vertical stems or horizontal segments of a character on high contrast pixel sub-component boundaries as part of a rendering process that uses separately controllable pixel sub-components of pixels to represent different portions of the character. In order to identify the typographical features of the character that are to be aligned with high contrast pixel sub-component boundaries, topology of the character is analyzed at runtime. In display devices having vertical stripes of same-colored pixel sub-components, it has been found that character legibility is increased when the left edges of stems are aligned with high contrast boundaries between pixel sub-components. Processing time and resources are conserved by performing a partial, rather than a full, topological analysis of the character. For example, some font files include data structures that define the position of key control points associated with the character, thereby indicating where the stems or other typographical features are located, and the relationship between different typographical features.
摘要翻译：本发明提供了在高对比度像素子组件边界上自动放置诸如垂直杆或字符的水平段的排版特征，作为使用单独可控的像素子像素的呈现过程的一部分来表示像素的不同部分字符。为了识别要与高对比度像素子分量边界对齐的字符的印刷特征，在运行时分析字符的拓扑。在具有相同颜色的像素子部件的垂直条纹的显示装置中，已经发现当杆的左边缘与像素子部件之间的高对比度边界对准时，字符易读性增加。通过对字符执行部分而不是完整的拓扑分析来节省处理时间和资源。例如，一些字体文件包括定义与该字符相关联的关键控制点的位置的数据结构，从而指示茎或其他印刷特征位于何处以及不同印刷特征之间的关系。

5. 发明授权

US06356278B1 Methods and systems for asymmeteric supersampling rasterization of image data 有权
标题翻译：图像数据的灰色超级采样光栅化的方法和系统
公开(公告)号：US06356278B1
公开(公告)日：2002-03-12
申请号：US09546422
申请日：2000-04-10
申请人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey
发明人： Beat Stamm , Gregory C. Hitchcock , Claude Betrisey
IPC分类号： G09G536
CPC分类号： G09G3/20 , G09G3/2003 , G09G3/3607 , G09G5/24 , G09G5/28 , G09G2300/0443 , G09G2340/0414 , G09G2340/0421 , G09G2340/0457
摘要： Methods and systems are disclosed for utilizing an increased number of samples of image data, coupled with the separately controllable nature of RGB pixel sub-components, to generate images with increased resolution on a display device. such as a liquid crystal display. The methods include scaling, hinting, and scan conversion operations. The scaling operation involves scaling the image data by factors of one in the directions perpendicular and parallel to the RGB striping of the display device. Hinting includes placing the scaled image data on a grid that has grid points defined by the positions of the pixels of the display device, and rounding key points to the nearest full pixel boundary in the direction parallel to the striping and to the nearest fractional increment in the direction perpendicular to the striping. Scan conversion includes scaling the hinted image data by an overscaling factor in the direction perpendicular to the striping. The overscaling factor is equivalent to the denominator of the fractional increments of the grid. Scan conversion also includes generating, for each region of the image data, a number of samples that equals the overscaling factor and mapping spatially different sets of the samples to each of the pixel sub-components.
摘要翻译：公开了用于利用增加数量的图像数据的样本以及RGB像素子组件的可分离控制的性质来生成在显示装置上具有增加的分辨率的图像的方法和系统。如液晶显示器。这些方法包括缩放，提示和扫描转换操作。缩放操作涉及通过垂直于和平行于显示设备的RGB条纹的方向的一个因子来缩放图像数据。提示包括将缩放的图像数据放置在具有由显示设备的像素的位置定义的网格点的网格上，并且将平面键移动到平行于条纹的方向上的最接近的整个像素边界，并将其缩小到最近的分数增量垂直于条纹的方向。扫描转换包括在垂直于条纹的方向上通过过大因子缩放暗示的图像数据。过大因子相当于网格分数增量的分母。扫描转换还包括针对图像数据的每个区域生成等于过量积分因子的多个样本，并将空间上不同的样本集映射到每个像素子分量。

6. 发明授权

US07292249B2 Appropriately rendering a graphical object when a corresponding outline has excessive control points 有权
标题翻译：当对应的轮廓具有过多的控制点时，适当地呈现图形对象
公开(公告)号：US07292249B2
公开(公告)日：2007-11-06
申请号：US10856451
申请日：2004-05-28
申请人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
发明人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
IPC分类号： G06T11/00 , G09G5/24 , G09G5/26
CPC分类号： G09G5/24 , G06T11/203
摘要： The principles of the present invention relate to appropriately rendering a graphical object when a corresponding outline has excessive control points. A computer system identifies a point of junction between a first and second feature of the outline. The computer system accesses an excess control point included in the first or second feature of the outline. The computer system moves the excess control point in a first direction until the position of the excess control point in the first direction is essentially the same as the position of the point of junction in the first direction. The computer system moves the excess control point in a second direction until the position of the excess control point in the second direction is essentially the same as the position of the point of junction in the second direction, the second direction being different from the first direction.
摘要翻译：本发明的原理涉及当对应的轮廓具有过多的控制点时适当地呈现图形对象。计算机系统识别轮廓的第一和第二特征之间的连接点。计算机系统访问包括在轮廓的第一或第二特征中的多余的控制点。计算机系统在第一方向上移动多余的控制点，直到第一方向上的多余控制点的位置与第一方向上的接合点的位置基本相同。计算机系统使多余的控制点沿第二方向移动，直到第二方向上的多余控制点的位置与第二方向上的接合点的位置基本相同，第二方向与第一方向不同。

7. 发明授权

US07292247B2 Dynamically determining directions of freedom for control points used to represent graphical objects 失效
标题翻译：动态确定用于表示图形对象的控制点的自由方向
公开(公告)号：US07292247B2
公开(公告)日：2007-11-06
申请号：US10764622
申请日：2004-01-26
申请人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
发明人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
IPC分类号： G06T11/00
CPC分类号： G06T11/203
摘要： The principles of the present invention relate to dynamically determining directions of freedom for control points used to represent graphical objects such as text. A computing system identifies a first function that represents a first constraint, solutions to the first function indicating compliance with the first constraint. The computing system calculates, based on the location of a control point and the identified first function, that the control point does not comply with the first constraint. The computing system automatically determines a first direction of freedom in which the control point can be moved to comply with the first constraint such that movement of the control point in the first direction of freedom has a reduced likelihood of causing non-compliance with other constraints.
摘要翻译：本发明的原理涉及动态地确定用于表示诸如文本的图形对象的控制点的自由度。计算系统识别表示第一约束的第一函数，指示符合第一约束的第一函数的解。计算系统基于控制点的位置和所识别的第一功能计算控制点不符合第一约束。计算系统自动地确定第一自由度方向，其中控制点可以被移动以符合第一约束，使得控制点在第一自由方向上的移动具有导致不符合其他约束的可能性降低。

8. 发明授权

US07265757B2 Appropriately rendering a graphical object when a corresponding outline lacks control points 有权
标题翻译：当相应的大纲缺少控制点时，适当地呈现图形对象
公开(公告)号：US07265757B2
公开(公告)日：2007-09-04
申请号：US10856655
申请日：2004-05-28
申请人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
发明人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
IPC分类号： G06T11/00
CPC分类号： G06T11/203 , G06K9/3283
摘要： The principles of the present invention relate to appropriately rendering a graphical object when a corresponding outline lacks necessary control points. A computer system calculates the target width for a feature of the graphical object. The computer system calculates the position of a center line corresponding to the feature. The computer system rounds the calculated position of the center line to a grid position based on the calculated target width for the feature. The computer system adjusts the position of one or more control points of the feature to comply with the grid position of the center line.
摘要翻译：本发明的原理涉及当对应的轮廓缺少必要的控制点时适当地呈现图形对象。计算机系统计算图形对象的特征的目标宽度。计算机系统计算与特征相对应的中心线的位置。计算机系统基于所计算的特征的目标宽度，将中心线的计算位置舍入到网格位置。计算机系统调整特征的一个或多个控制点的位置以符合中心线的网格位置。

9. 发明授权

US07187382B2 Iteratively solving constraints in a font-hinting language 有权
标题翻译：在字体提示语言中迭代地解决约束
公开(公告)号：US07187382B2
公开(公告)日：2007-03-06
申请号：US10764961
申请日：2004-01-26
申请人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
发明人： Beat Stamm , Gregory C. Hitchcock , Michael J. Duggan
IPC分类号： G06T11/00 , G09G5/24 , G09G5/26
CPC分类号： G09G5/24 , G06T11/203
摘要： The principles of the present invention relate to iteratively solving constraints in a font-hinting language. A computing system accesses a more complex constraint that can not be natively expressed based on the vocabulary of the font-hinting language, the more complex constraint constraining at least a portion of the outline. The computing system decomposes the more complex constraint into a plurality of simpler constraints that can be natively expressed based on the vocabulary of the font-hinting language. The computer system represents each of the simpler constraints in corresponding font-hinting language instructions that can be iteratively processed to at least approximate a solution to the more complex constraint. The font-hinting language instructions are iteratively processed at the computing system or another computing system to cause a graphical object to comply, within a specific tolerance, with the more complex constraint.
摘要翻译：本发明的原理涉及迭代地解决字体提示语言中的约束。计算系统访问基于字体提示语言的词汇不能本地表达的更复杂的约束，更复杂的约束约束轮廓的至少一部分。计算系统将更复杂的约束分解为可以基于字体提示语言的词汇表本征表示的多个更简单的约束。计算机系统代表相应的字体提示语言指令中的每个更简单的约束，其可被迭代地处理以至少近似于更复杂约束的解。字体提示语言指令在计算系统或另一计算系统处被迭代地处理，以使图形对象在特定容限内遵循更复杂的约束。

10. 发明授权

US08253742B2 Rendering stroke pairs for graphical objects 有权
标题翻译：渲染图形对象的笔触对
公开(公告)号：US08253742B2
公开(公告)日：2012-08-28
申请号：US11751325
申请日：2007-05-21
申请人： Beat Stamm , Michael J. Duggan , Gregory C. Hitchcock
发明人： Beat Stamm , Michael J. Duggan , Gregory C. Hitchcock
IPC分类号： G06T11/00
CPC分类号： G06T11/40 , G06T11/203
摘要： The principles of the present invention relate to rendering stroke pairs. A graphical object includes at least a first stroke and a second similarly oriented second stroke collectively representing a stroke pair. A calculated distance between the first stroke and the second stroke is constrained (e.g., to a center line between the strokes) to mitigate the possibility of rounding errors causing the represented stroke pair to be inappropriately rendered. After the stroke pair is constrained, controls points of the individual strokes can be adjusted so that the individual strokes are appropriately rendered at their respective constrained locations. The adjusted stroke pair is constrained between external reference points for appropriate rendering relative to other graphical objects. The graphical object, including the adjusted constrained stroke pair, is rendered at an output device.
摘要翻译：本发明的原理涉及渲染笔划对。图形对象包括集体表示笔画对的至少第一笔划和第二类似地定向的第二笔划。第一笔划和第二笔划之间的计算距离被约束（例如，到笔划之间的中心线），以减轻舍入误差的可能性，导致所表示的笔划对被不适当地呈现。在限制冲程对之后，可以调整各个笔划的控制点，使得各个笔划在它们各自的约束位置适当地呈现。经调整的笔划对被限制在外部参考点之间，用于相对于其他图形对象的适当渲染。图形对象，包括经调整的约束笔划对，在输出设备处呈现。

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