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1. 发明申请

US20060062466A1 Mathematical expression recognition 有权
公开(公告)号：US20060062466A1
公开(公告)日：2006-03-23
申请号：US11155604
申请日：2005-06-20
申请人： Yu Zou , Lei Huang , Mingqing Xu , Jian-Lai Zhou , Yue Li , Dongmei Zhang , Xiaohui Hou , Wenli Zhu , Hongyun Yang , Xianfang Wang , Jiang Wu , Jian Wang
发明人： Yu Zou , Lei Huang , Mingqing Xu , Jian-Lai Zhou , Yue Li , Dongmei Zhang , Xiaohui Hou , Wenli Zhu , Hongyun Yang , Xianfang Wang , Jiang Wu , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a multi-path framework is described. The framework may include symbol grouping and recognition, tabular structure analysis, subordinate sub-expression analysis, subscript/superscript analysis and character determination, and semantic structure analysis components. A method for recognizing a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression and providing a candidate list of recognized candidate expressions based upon the input strokes. Input strokes are grouped into symbols, tabular structures are determined, dominant symbol candidates and subordinate symbols are determined, and subscript and superscript structures are determined.

2. 发明授权

US07561737B2 Mathematical expression recognition 有权
标题翻译：数学表达式识别
公开(公告)号：US07561737B2
公开(公告)日：2009-07-14
申请号：US11155604
申请日：2005-06-20
申请人： Yu Zou , Lei Huang , Mingqing Xu , Jian-Lai Zhou , Yue Li , Dongmei Zhang , Xiaohui Hou , Wenli Zhu , Hongyun Yang , Xianfang Wang , Jiang Wu , Jian Wang
发明人： Yu Zou , Lei Huang , Mingqing Xu , Jian-Lai Zhou , Yue Li , Dongmei Zhang , Xiaohui Hou , Wenli Zhu , Hongyun Yang , Xianfang Wang , Jiang Wu , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a multi-path framework is described. The framework may include symbol grouping and recognition, tabular structure analysis, subordinate sub-expression analysis, subscript/superscript analysis and character determination, and semantic structure analysis components. A method for recognizing a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression and providing a candidate list of recognized candidate expressions based upon the input strokes. Input strokes are grouped into symbols, tabular structures are determined, dominant symbol candidates and subordinate symbols are determined, and subscript and superscript structures are determined.
摘要翻译：描述了通过提供多路径框架来将手写数学表达式识别并输入到计算机中的机制。框架可以包括符号分组和识别，表格结构分析，从属子表达分析，下标/上标分析和字符确定，以及语义结构分析组件。用于识别手写数学表达式的方法包括接收与手写数学表达式相对应的多个输入笔画，并且基于输入的笔画提供所识别的候选表达的候选列表。输入笔划分为符号，确定表格结构，确定主要符号候选和下级符号，并确定下标和上标结构。

3. 发明授权

US07561739B2 Analyzing scripts and determining characters in expression recognition 有权
标题翻译：分析脚本并确定表达式识别中的字符
公开(公告)号：US07561739B2
公开(公告)日：2009-07-14
申请号：US11155748
申请日：2005-06-20
申请人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xianfang Wang , Xiaohui Hou , Dongmei Zhang , Zhouchen Lin , Jian Wang
发明人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xianfang Wang , Xiaohui Hou , Dongmei Zhang , Zhouchen Lin , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subscript/superscript analysis and character determination component that is designed to identify subscript and superscript elements. A method for analyzing a handwritten mathematical expression includes receiving a symbols corresponding to handwritten mathematical expression input strokes, identifying subscript and/or superscript structures, and determining a character for each symbol of the set. A graph of vertexes and edges may be created based upon the set of symbols and the graph may be searched to determine optimized candidates.
摘要翻译：描述了通过提供一部分多路径框架来将手写数学表达式识别并输入计算机的机制。多路径框架的一部分包括下标/上标分析和字符确定组件，其被设计为识别下标和上标元素。一种用于分析手写数学表达式的方法包括接收对应于手写数学表达式输入笔画的符号，识别下标和/或上标结构，以及确定该组的每个符号的字符。可以基于符号集创建顶点和边缘的图形，并且可以搜索图形以确定优化的候选。

4. 发明申请

US20060062468A1 Analyzing scripts and determining characters in expression recognition 有权
公开(公告)号：US20060062468A1
公开(公告)日：2006-03-23
申请号：US11155748
申请日：2005-06-20
申请人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xianfang Wang , Xiaohui Hou , Dongmei Zhang , Zhouchen Lin , Jian Wang
发明人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xianfang Wang , Xiaohui Hou , Dongmei Zhang , Zhouchen Lin , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subscript/superscript analysis and character determination component that is designed to identify subscript and superscript elements. A method for analyzing a handwritten mathematical expression includes receiving a symbols corresponding to handwritten mathematical expression input strokes, identifying subscript and/or superscript structures, and determining a character for each symbol of the set. A graph of vertexes and edges may be created based upon the set of symbols and the graph may be searched to determine optimized candidates.

5. 发明授权

US07561738B2 Symbol grouping and recognition in expression recognition 有权
标题翻译：表达识别中的符号分组和识别
公开(公告)号：US07561738B2
公开(公告)日：2009-07-14
申请号：US11155614
申请日：2005-06-20
申请人： Yu Zou , Lei Huang , Jian-Lai Zhou , Mingqing Xu , Yue Li , Xiaohui Hou , Dongmei Zhang , Jian Wang
发明人： Yu Zou , Lei Huang , Jian-Lai Zhou , Mingqing Xu , Yue Li , Xiaohui Hou , Dongmei Zhang , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a part of a multi-path framework is described. The part of the multi-path framework includes a symbol grouping and recognition component that is designed to group input strokes that correspond to a handwritten mathematical expression into a symbol and to recognize the symbol based upon information associated with the grouped input strokes. A method for grouping and recognizing symbols of a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression, grouping the plurality of input strokes into symbols, recognizing the symbols based upon information, such as shape and time series information, associated with the grouped input strokes. Intra-group and inter-group information associated with the plurality of input strokes may be utilized to group the input strokes.
摘要翻译：描述了通过提供多路径框架的一部分来将手写数学表达式识别并输入到计算机中的机制。多路径框架的一部分包括符号分组和识别组件，其被设计为将对应于手写数学表达式的输入笔划分组到符号中，并且基于与分组的输入笔画相关联的信息来识别符号。一种用于分组和识别手写数学表达符号的方法包括：接收与手写数学表达式对应的多个输入笔画，将多个输入笔划分组成符号，基于诸如形状和时间序列信息的信息识别符号，与分组的输入笔画相关联。可以利用与多个输入笔画相关联的组内和组间信息来对输入笔画进行分组。

6. 发明申请

US20060062467A1 Symbol grouping and recognition in expression recognition 有权
公开(公告)号：US20060062467A1
公开(公告)日：2006-03-23
申请号：US11155614
申请日：2005-06-20
申请人： Yu Zou , Lei Huang , Jian-Lai Zhou , Mingqing Xu , Yue Li , Xiaohui Hou , Dongmei Zhang , Jian Wang
发明人： Yu Zou , Lei Huang , Jian-Lai Zhou , Mingqing Xu , Yue Li , Xiaohui Hou , Dongmei Zhang , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing a part of a multi-path framework is described. The part of the multi-path framework includes a symbol grouping and recognition component that is designed to group input strokes that correspond to a handwritten mathematical expression into a symbol and to recognize the symbol based upon information associated with the grouped input strokes. A method for grouping and recognizing symbols of a handwritten mathematical expression includes receiving a plurality of input strokes corresponding to a handwritten mathematical expression, grouping the plurality of input strokes into symbols, recognizing the symbols based upon information, such as shape and time series information, associated with the grouped input strokes. Intra-group and inter-group information associated with the plurality of input strokes may be utilized to group the input strokes.

7. 发明授权

US07929767B2 Analyzing subordinate sub-expressions in expression recognition 有权
标题翻译：分析表达式识别中的下级子表达式
公开(公告)号：US07929767B2
公开(公告)日：2011-04-19
申请号：US11155785
申请日：2005-06-20
申请人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xiaohui Hou , Zhouchen Lin , Dongmei Zhang , Jian Wang
发明人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xiaohui Hou , Zhouchen Lin , Dongmei Zhang , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/00422 , G06K9/222 , G06K9/72 , G06K2209/01
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subordinate sub-expression analysis component. A method for analyzing a handwritten mathematical expression for a subordinate sub-expression includes identifying sub-expressions based on dominant symbols and determining a character for potential dominant symbols based upon sub-expression information. A determination may be made whether an expression structure candidate is valid and valid expression structure candidates may be stored in a parse tree.
摘要翻译：描述了通过提供一部分多路径框架来将手写数学表达式识别并输入计算机的机制。多路径框架的一部分包括从属子表达式分析组件。用于分析用于下级子表达式的手写数学表达式的方法包括基于主要符号识别子表达，并且基于子表达信息确定潜在的主要符号的字符。可以确定表达式结构候选是否是有效的，并且有效的表达式结构候选可以被存储在解析树中。

8. 发明申请

US20060062471A1 Analyzing subordinate sub-expressions in expression recognition 有权
标题翻译：分析表达式识别中的下级子表达式
公开(公告)号：US20060062471A1
公开(公告)日：2006-03-23
申请号：US11155785
申请日：2005-06-20
申请人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xiaohui Hou , Zhouchen Lin , Dongmei Zhang , Jian Wang
发明人： Mingqing Xu , Yu Zou , Lei Huang , Jian-Lai Zhou , Xiaohui Hou , Zhouchen Lin , Dongmei Zhang , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/00422 , G06K9/222 , G06K9/72 , G06K2209/01
摘要： A mechanism for recognizing and inputting handwritten mathematical expressions into a computer by providing part of a multi-path framework is described. The part of the multi-path framework includes a subordinate sub-expression analysis component. A method for analyzing a handwritten mathematical expression for a subordinate sub-expression includes identifying sub-expressions based on dominant symbols and determining a character for potential dominant symbols based upon sub-expression information. A determination may be made whether an expression structure candidate is valid and valid expression structure candidates may be stored in a parse tree.
摘要翻译：描述了通过提供一部分多路径框架来将手写数学表达式识别并输入计算机的机制。多路径框架的一部分包括从属子表达式分析组件。用于分析用于下级子表达式的手写数学表达式的方法包括基于主要符号识别子表达，并且基于子表达信息确定潜在的主要符号的字符。可以确定表达式结构候选是否是有效的，并且有效的表达式结构候选可以被存储在解析树中。

9. 发明申请

US20060062470A1 Graphical user interface for expression recognition 审中-公开
标题翻译：用于表达式识别的图形用户界面
公开(公告)号：US20060062470A1
公开(公告)日：2006-03-23
申请号：US11155784
申请日：2005-06-20
申请人： Wenli Zhu , Xiaohui Hou , Dongmei Zhang , Bing Sun , Jiang Wu , Jian Wang
发明人： Wenli Zhu , Xiaohui Hou , Dongmei Zhang , Bing Sun , Jiang Wu , Jian Wang
IPC分类号： G06K9/18
CPC分类号： G06K9/222 , G06K9/00436
摘要： A mechanism for inputting handwritten mathematical expressions into a computer is described. A user interface includes an input area that receives strokes corresponding to a handwritten mathematical expression, a result display area that displays a mathematical expression recognition result corresponding to the strokes, and a tool area that allows a user to select various tools for operation within the input area and/or the result display area. The mathematical expression recognized result corresponds to a best match to the strokes received from a mathematical expression recognition system. Another interface element allows a user to see the availability of alternative mathematical expression recognition candidates. An additional input feature allows a user to input the mathematical expression recognized result into an application program.
摘要翻译：描述了将手写数学表达式输入计算机的机制。用户接口包括接收与手写数学表达式对应的笔画的输入区域，显示与笔画相对应的数学表达式识别结果的结果显示区域，以及允许用户选择用于在输入内操作的各种工具的工具区域区域和/或结果显示区域。识别数学表达式对应于与数学表达式识别系统接收的笔画的最佳匹配。另一个界面元素允许用户查看替代数学表达式识别候选者的可用性。额外的输入功能允许用户将表达式识别的结果输入到应用程序中。

10. 发明授权

US07826074B1 Fast embedded interaction code printing with custom postscript commands 失效
标题翻译：快速嵌入式互动代码打印与自定义postscript命令
公开(公告)号：US07826074B1
公开(公告)日：2010-11-02
申请号：US11066800
申请日：2005-02-25
申请人： Jian Wang , Hongyun Yang , Xiaohui Hou , Yongcheng Huang , Jiang Wu
发明人： Jian Wang , Hongyun Yang , Xiaohui Hou , Yongcheng Huang , Jiang Wu
IPC分类号： G06F17/00
CPC分类号： G06F3/03545 , G06F3/0321 , G06K15/02 , G06K15/1852
摘要： Processes and apparatuses print documents containing embedded interactive code (EIC) information by the use of custom postscript commands that are printer independent, with little overhead when printing, smaller print file size, and faster print times. In order to determine the postscript commands, the EIC array may be represented as a bit for every point, as EIC symbols in which each kind of EIC symbol is a glyph of a font, or as graphics procedures. The postscript approach may be selected based on memory and printing time requirements.
摘要翻译：过程和设备通过使用独立于打印机的自定义postscript命令打印包含嵌入式交互式代码（EIC）信息的文档，打印时打印的开销小，打印文件大小更小，打印时间更短。为了确定后缀命令，EIC阵列可以表示为每个点的位，作为EIC符号，其中每种EIC符号是字体的字形，或者作为图形程序。可以基于记忆和打印时间要求来选择后记的方法。

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