Patents by Inventor Changnian Liang

Changnian Liang 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: 8666298
    Abstract: A computer-based learning system uses knowledge points organized with a predefined multilevel arrangement. Each knowledge point has an information set which may include a knowledge content, an evaluation content and a solution content. For a given knowledge point, the learning system provides the knowledge content and evaluation content, analyzes the user's answers to the evaluation content and determines the next knowledge point to be studied by the user based on the user's answers and the predefined multilevel arrangement of the knowledge points. The learning system thus provides a different learning course for different users to achieve individualized learning. User's learning history may be recorded to facilitate reviews by the user and improve the selection of the next knowledge point. Users may provide feedbacks on knowledge contents and evaluation contents, and may even suggest their own knowledge contents and evaluation contents to improve the learning system and user participation.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 4, 2014
    Assignee: Coentre Ventures LLC
    Inventors: Changnian Liang, Pingyi Yan, Xiaofeng Zhang, Yuan Li
  • Publication number: 20100129783
    Abstract: A study evaluation system used for computer-based learning uses evaluation contents arranged in a multilevel arrangement for self-adaptive study evaluation. The study evaluation system provides a present evaluation content to a user through user interaction, and determines a subsequent evaluation content or a subsequent knowledge point to be studied by the user at least partially based on the user feedback on the present evaluation content, the multilevel arrangement of the evaluation contents, and a characteristic information of the user. The study evaluation system may further establish a data set for each user to record the user feedbacks on the evaluation contents, and use the data set in combination with certain basic user information to realize individualized study evaluation.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 27, 2010
    Inventors: Changnian Liang, Pingyi Yan, Xiaofeng Zhang, Yuan Li
  • Publication number: 20100005413
    Abstract: A graphical user interface is used in a computer-based learning system which uses knowledge points organized with a predefined multilevel arrangement. A graphical window which has selectable elements of multiple levels is used for navigation in choosing a knowledge point to be studied. Upon selection, the graphical window displays in information display area an information content associated with the chosen knowledge point for the user to study and provide a feedback such as answers. Upon receiving the user feedback through a user interaction element, the graphical window displays an evaluation result of the user feedback. Additional selectable elements are used to choose the type of information content (such as knowledge content and evaluation content) to be displayed. The graphical user interface also uses additional graphical windows for user inquiry and reviews and for displaying study statistics.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Inventors: Changnian Liang, Yuan Li
  • Publication number: 20090287619
    Abstract: A computer-based learning system uses knowledge points organized with a predefined multilevel arrangement. Each knowledge point has an information set which may include a knowledge content, an evaluation content and a solution content. For a given knowledge point, the learning system provides the knowledge content and evaluation content, analyzes the user's answers to the evaluation content and determines the next knowledge point to be studied by the user based on the user's answers and the predefined multilevel arrangement of the knowledge points. The learning system thus provides a different learning course for different users to achieve individualized learning. User's learning history may be recorded to facilitate reviews by the user and improve the selection of the next knowledge point. Users may provide feedbacks on knowledge contents and evaluation contents, and may even suggest their own knowledge contents and evaluation contents to improve the learning system and user participation.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Inventors: Changnian Liang, Pingyi Yan, Xiaofeng Zhang, Yuan Li