Patents by Inventor Youjun Liu

Youjun Liu 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: 7607076
    Abstract: Methods and apparatuses that synchronize a paper document to an associated digital document by establishing a mapping. An embedded interactive code (EIC) Document is created as a digital file that serves as an intermediate tier between the paper document and the digital document. Both the paper document and the EIC document are generated while printing the paper document. The EIC document records the corresponding EIC array allocations and a unique document identification number. An image capturing pen may generate a stroke on any page of paper document. With the EIC document, the methods and apparatuses inform an application the page and location on the page of the stroke.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: October 20, 2009
    Assignee: Microsoft Corporation
    Inventors: Jian Wang, Liyong Chen, Youjun Liu, Jiang Wu
  • Patent number: 7580576
    Abstract: A method and apparatus for capturing information encoded within a surface, such as location information or document metadata, and associating the information with a document is described. The captured information may be obtained by a camera associated with a pointing or writing device having a camera, such as an image-capturing pen.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: August 25, 2009
    Assignee: Microsoft Corporation
    Inventors: Jian Wang, Jiang Wu, Liyong Chen, Qiang Wang, Yingnong Dang, Youjun Liu
  • Patent number: 7532366
    Abstract: Computer-readable media having computer-executable instructions provide support for the printing of documents containing embedded interactive code information in conjunction with different applications that include Microsoft Word, Microsoft PowerPoint®, and Microsoft InfoPath™. With a Microsoft Word document, the contents and the associated portion of the EIC pattern are printed page by page. A virtual printer intercepts a spooled printed job and saves the associated enhanced metafile. Subsequently, the EMF and the associated EIC pattern for each page are printed. With a Microsoft PowerPoint® document, each page is printed with a selected number of slides and with an associated portion of the EIC pattern. A note-taking section and play control buttons may be printed. For a Microsoft InfoPath™ document, an HTML document is obtained from the InfoPath XML document before printing. Microsoft InfoPath prints the image of one page with the associated EIC pattern.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: May 12, 2009
    Assignee: Microsoft Corporation
    Inventors: Hongyun Yang, Youjun Liu, Jiang Wu, Jian Wang
  • Patent number: 7503015
    Abstract: A system and method for editing ink objects recognized in ink input is provided. An ink parser may recognize an ink object in ink input and then an ink editing user interface may edit the ink object recognized by the ink parser. The ink parser may include a chart detector, shape recognizer, and various ink object recognizers such as a chart recognizer, a list detector and a table detector. The various ink object recognizers may recognize particular ink objects. The ink editing user interface may edit the ink object recognized by the ink parser. The ink editing user interface may include a chart editor, list editor, table editor, mode switcher, and a visualizer. The mode switcher may switch the ink editing system between inking mode and ink editing mode.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: March 10, 2009
    Assignee: Microsoft Corporation
    Inventors: Tongxian Chen, Yantao Li, Youjun Liu, Jian Wang, Xianfang Wang
  • Patent number: 7412094
    Abstract: A system and method for editing ink objects recognized in ink input is provided. An ink parser may recognize an ink object in ink input and then an ink editing user interface may edit the ink object recognized by the ink parser. The ink parser may include a chart detector, shape recognizer, and various ink object recognizers such as a chart recognizer, a list detector and a table detector. The various ink object recognizers may recognize particular ink objects. The ink editing user interface may edit the ink object recognized by the ink parser. The ink editing user interface may include a chart editor, list editor, table editor, mode switcher, and a visualizer. The mode switcher may switch the ink editing system between inking mode and ink editing mode.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: August 12, 2008
    Assignee: Microsoft Corporation
    Inventors: Tongxian Chen, Yantao Li, Youjun Liu, Jian Wang, Xianfang Wang
  • Publication number: 20060274948
    Abstract: A method and apparatus for capturing information and associating the information with a document is described. The captured information may be obtained by a camera associated with a pointing or writing device having a camera.
    Type: Application
    Filed: June 2, 2005
    Publication date: December 7, 2006
    Applicant: Microsoft Corporation
    Inventors: Jian Wamg, Jiang Wu, Liyong Chen, Qiang Wang, Yingnong Dang, Youjun Liu
  • Publication number: 20060190818
    Abstract: Methods and apparatuses that synchronize a paper document to an associated digital document by establishing a mapping. An embedded interactive code (EIC) Document is created as a digital file that serves as an intermediate tier between the paper document and the digital document. Both the paper document and the EIC document are generated while printing the paper document. The EIC document records the corresponding EIC array allocations and a unique document identification number. An image capturing pen may generate a stroke on any page of paper document. With the EIC document, the methods and apparatuses inform an application the page and location on the page of the stroke.
    Type: Application
    Filed: February 18, 2005
    Publication date: August 24, 2006
    Applicant: Microsoft Corporation
    Inventors: Jian Wang, Liyong Chen, Youjun Liu, Jiang Wu
  • Publication number: 20060061776
    Abstract: A system and method for editing ink objects recognized in ink input is provided. An ink parser may recognize an ink object in ink input and then an ink editing user interface may edit the ink object recognized by the ink parser. The ink parser may include a chart detector, shape recognizer, and various ink object recognizers such as a chart recognizer, a list detector and a table detector. The various ink object recognizers may recognize particular ink objects. The ink editing user interface may edit the ink object recognized by the ink parser. The ink editing user interface may include a chart editor, list editor, table editor, mode switcher, and a visualizer. The mode switcher may switch the ink editing system between inking mode and ink editing mode.
    Type: Application
    Filed: March 30, 2005
    Publication date: March 23, 2006
    Applicant: Microsoft Corporation
    Inventors: Tongxian Chen, Yantao Li, Youjun Liu, Jian Wang, Xianfang Wang
  • Publication number: 20060061779
    Abstract: A system and method for editing ink objects recognized in ink input is provided. An ink parser may recognize an ink object in ink input and then an ink editing user interface may edit the ink object recognized by the ink parser. The ink parser may include a chart detector, shape recognizer, and various ink object recognizers such as a chart recognizer, a list detector and a table detector. The various ink object recognizers may recognize particular ink objects. The ink editing user interface may edit the ink object recognized by the ink parser. The ink editing user interface may include a chart editor, list editor, table editor, mode switcher, and a visualizer. The mode switcher may switch the ink editing system between inking mode and ink editing mode.
    Type: Application
    Filed: March 30, 2005
    Publication date: March 23, 2006
    Applicant: Microsoft Corporation
    Inventors: Tongxian Chen, Yantao Li, Youjun Liu, Jian Wang, Xianfang Wang