Patents by Inventor Song Man LEE

Song Man LEE 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: 9185677
    Abstract: The present disclosure provides a system, device and method for estimating an AP location using log data. Information, which is not pre-stored in a database when the information is updated, is classified and then location information of an AP is estimated by using log data of a user in such a manner of estimating a location of the AP by using log data of a user in wireless LAN based positioning and thus updating the database for the wireless LAN based positioning, thereby improving positioning accuracy.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: November 10, 2015
    Assignee: SK TELECOM CO., LTD.
    Inventors: Chae Hwan Cho, Song Man Lee, Suk Yon Kang, Ji Min Kim, Chun Young Kim
  • Patent number: 9173057
    Abstract: The present disclosure relates to providing a positioning service by managing a plurality of peripheral wireless LAN signals. The positioning service system collects peripheral wireless LAN radio signals by scanning peripheral access points (APs), stores AP information of each of peripheral wireless LAN radio signals in each lattice cell of a database. When a positioning request signal is received from a terminal, a positioning server of the positioning service extracts AP identification information from included in the peripheral wireless LAN radio signal received from the terminal. By using the extracted AP identification information, the positioning server selects from the database the corresponding lattice cell matching to the stored AP identification information of each of the peripheral wireless LAN radio signals pre-stored. And the positioning server estimates location information of the selected corresponding lattice cell as location information for the terminal.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: October 27, 2015
    Assignee: SK TELECOM CO., LTD.
    Inventors: Chae Hwan Cho, Suk Yon Kang, Song Man Lee, Ji Min Kim, Chun Young Kim
  • Publication number: 20130235863
    Abstract: The present disclosure relates to providing a positioning service by managing a plurality of peripheral wireless LAN signals. The positioning service system collects peripheral wireless LAN radio signals by scanning peripheral access points (APs), stores AP information of each of peripheral wireless LAN radio signals in each lattice cell of a database. When a positioning request signal is received from a terminal, a positioning server of the positioning service extracts AP identification information from included in the peripheral wireless LAN radio signal received from the terminal. By using the extracted AP identification information, the positioning server selects from the database the corresponding lattice cell matching to the stored AP identification information of each of the peripheral wireless LAN radio signals pre-stored. And the positioning server estimates location information of the selected corresponding lattice cell as location information for the terminal.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: SK TELECOM CO., LTD.
    Inventors: Chae Hwan CHO, Suk Yon KANG, Song Man LEE, Ji Min KIM, Chun Young KIM
  • Publication number: 20130235749
    Abstract: The present disclosure provides a system, device and method for estimating an AP location using log data. Information, which is not pre-stored in a database when the information is updated, is classified and then location information of an AP is estimated by using log data of a user in such a manner of estimating a location of the AP by using log data of a user in wireless LAN based positioning and thus updating the database for the wireless LAN based positioning, thereby improving positioning accuracy.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 12, 2013
    Applicant: SK TELECOM CO., LTD.
    Inventors: Chae Hwan CHO, Song Man LEE, Suk Yon KANG, Ji Min KIM, Chun Young KIM