The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2011
Filed:
Jun. 20, 2005
Mingqing Xu, Beijing, CN;
Yu Zou, Beijing, CN;
Lei Huang, Beijing, CN;
Jian-lai Zhou, Beijing, CN;
Xiaohui Hou, Beijing, CN;
Zhouchen Lin, Beijing, CN;
Dongmei Zhang, Beijing, CN;
Jian Wang, Beijing, CN;
Mingqing Xu, Beijing, CN;
Yu Zou, Beijing, CN;
Lei Huang, Beijing, CN;
Jian-Lai Zhou, Beijing, CN;
Xiaohui Hou, Beijing, CN;
Zhouchen Lin, Beijing, CN;
Dongmei Zhang, Beijing, CN;
Jian Wang, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
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.