Patents by Inventor Xinjian Chen

Xinjian Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7953279
    Abstract: Described is a technology by which online recognition of handwritten input data is combined with offline recognition and processing to obtain a combined recognition result. In general, the combination improves overall recognition accuracy. In one aspect, online and offline recognition is separately performed to obtain online and offline character-level recognition scores for candidates (hypotheses). A statistical analysis-based combination algorithm, an AdaBoost algorithm, and/or a neural network-based combination may determine a combination function to combine the scores to produce a result set of one or more results. Online and offline radical-level recognition may be performed. For example, a HMM recognizer may generate online radical scores used to build a radical graph, which is then rescored using the offline radical recognition scores. Paths in the rescored graph are then searched to provide the combined recognition result, e.g., corresponding to the path with the highest score.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 31, 2011
    Assignee: Microsoft Corporation
    Inventors: Xinjian Chen, Dongmei Zhang, Yu Zou, Ming Chang, Shi Han, Jian Wang
  • Publication number: 20100163316
    Abstract: Described is a multi-path handwriting recognition framework based upon stroke segmentation, symbol recognition, two-dimensional structure analysis and semantic structure analysis. Electronic pen input corresponding to handwritten input (e.g., a chemical expression) is recognized and output via a data structure, which may include multiple recognition candidates. A recognition framework performs stroke segmentation and symbol recognition on the input, and analyzes the structure of the input to output the data structure corresponding to recognition results. For chemical expressions, the structural analysis may perform a conditional sub-expression analysis for inorganic expressions, or organic bond detection, connection relationship analysis, organic atom determination and/or conditional sub-expression analysis for organic expressions. The structural analysis also performs subscript, superscript analysis and character determination. Further analysis may be performed, e.g.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 1, 2010
    Applicant: Microsoft Corporation
    Inventors: Ming Chang, Shi Han, Dongmei Zhang, Yu Zou, Xinjian Chen
  • Publication number: 20090149488
    Abstract: The present invention relates to tetrahydroprotoberberines of the formula (I) and the physiologically acceptable salts thereof. The invention also relates to the use of the compounds of the formula (I) or pharmaceutically acceptable salts thereof for preparing a pharmaceutical composition for the treatment of a medical disorder susceptible to treatment with dopamine receptor ligand, such as schizophrenia.
    Type: Application
    Filed: July 7, 2006
    Publication date: June 11, 2009
    Applicants: Shanghai Institute of Materia Medica, Chinese Academy of Science, Topharman Shanghai Co., Ltd.
    Inventors: Jianfeng Li, Aixiang Liu, Xinjian Chen, Guozhang Jin, Tiema Yan, Rongxia Zhang, Yi Zhu, Yanjun Pan, Jingshan Shen, Jingkang Shen
  • Publication number: 20090003706
    Abstract: Described is a technology by which online recognition of handwritten input data is combined with offline recognition and processing to obtain a combined recognition result. In general, the combination improves overall recognition accuracy. In one aspect, online and offline recognition is separately performed to obtain online and offline character-level recognition scores for candidates (hypotheses). A statistical analysis-based combination algorithm, an AdaBoost algorithm, and/or a neural network-based combination may determine a combination function to combine the scores to produce a result set of one or more results. Online and offline radical-level recognition may be performed. For example, a HMM recognizer may generate online radical scores used to build a radical graph, which is then rescored using the offline radical recognition scores. Paths in the rescored graph are then searched to provide the combined recognition result, e.g., corresponding to the path with the highest score.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Applicant: Microsoft Corporation
    Inventors: Xinjian Chen, Dongmei Zhang, Yu Zou, Ming Chang, Shi Han, Jian Wang
  • Publication number: 20080318949
    Abstract: The invention discloses a series of pyrazolopyrimidinone derivatives, which have the following chemical structure, their preparation methods and use, It has been proved by pharmacological experiment that the said pyrazolopyrimidinone derivatives have high inhibitory activity against PDE5, and parts of them have a much stronger potency against PDE5 than against PDE6. Most of the compounds show low toxicity. The pyrazolopyrimidinone derivatives can be used in clinics for the palliative or curative treatment of symptoms or diseases relating to cardiovascular system, urinary system, especially for the palliative or curative treatment of erectile dysfunction.
    Type: Application
    Filed: November 16, 2006
    Publication date: December 25, 2008
    Applicants: Topharman Shanghai Co., Ltd, Shanghai Institute of Materia Medica
    Inventors: Guanghui Tian, Shunan Lai, Zhen Wang, Yi Zhu, Xinjian Chen, Yurong Ji, Jinfeng Zhang, Weixi Jin, Heping Lv, Jinping Liu, Wei Wang, Ruyun Ji, Jingshan Shen