Patents by Inventor Shang-Tae Yee

Shang-Tae Yee 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: 7853466
    Abstract: Methods, systems and computer program products for supporting supply chain facility performance analysis. Methods include maintaining supply chain facility configuration information for a plurality of supply chain facilities. The method also includes identifying variables that are attributed to performance of the supply chain facilities. Data corresponding to one or more of the variables for selected supply chain facilities in the plurality of supply chain facilities is collected. Performance analysis is performed for the selected supply chain facilities using the data as input. The performance analysis includes executing a data envelope analysis (DEA) based three-stage performance analysis model, executing a statistical analysis and executing a sensitivity analysis. The results of the performance analysis are output. The results include a performance ranking of the selected supply chain facilities, a prescription for performance improvement, a correlation analysis, and a sensitivity analysis.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: December 14, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Peiling Wu, Shang-Tae Yee, Devadatta M. Kulkarni, Jeffrey D. Tew
  • Publication number: 20100127869
    Abstract: A hierarchical configuration of RFID tags. The hierarchical configuration includes a plurality of RFID tags having lower level RFID tags, intermediate level RFID tags and at least one upper level RFID tags, where each RFID tag stores an identification code and other information about the thing it is attached to. Further, each intermediate level RFID tag also obtains information about a group of lower level RFID tags that it is associated with and the at least one upper level RFID tag obtains information about more than one intermediate RFID tag it is associated with.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 27, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Gening (GARY) Yu, Ramon F. Sarraga, Shang-Tae Yee
  • Publication number: 20080306783
    Abstract: A method, system, and computer program product for modeling a supply chain. The method includes modeling a storage element in the supply chain as a place node and modeling an activity in the supply chain as a transition node. The transition node includes at least one of an immediate transition node, a timed transition node, and a substitution transition node. An item moved through the supply chain is modeled as a token, where the token includes multiple attributes associated with the item. The place node is linked to the transition node with a directed arc, with the directed arc indicating the direction of token movement between the place node and the transition node. The linked place and transition nodes are organized as a supply chain model that represents the flow of items through the supply chain. In addition, performance metrics for the supply chain model are defined.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 11, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Shang-Tae Yee, Jeffrey D. Tew
  • Publication number: 20080065436
    Abstract: Methods, systems and computer program products for supporting supply chain facility performance analysis. Methods include maintaining supply chain facility configuration information for a plurality of supply chain facilities. The method also includes identifying variables that are attributed to performance of the supply chain facilities. Data corresponding to one or more of the variables for selected supply chain facilities in the plurality of supply chain facilities is collected. Performance analysis is performed for the selected supply chain facilities using the data as input. The performance analysis includes executing a data envelope analysis (DEA) based three-stage performance analysis model, executing a statistical analysis and executing a sensitivity analysis. The results of the performance analysis are output. The results include a performance ranking of the selected supply chain facilities, a prescription for performance improvement, a correlation analysis, and a sensitivity analysis.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 13, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Peiling Wu, Shang-Tae Yee, Devadatta M. Kulkarni, Jeffrey D. Tew