Patents by Inventor Hoon-Ju Lee

Hoon-Ju 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: 8213963
    Abstract: The present invention provides a network-based location measurement method using a pCELL database, comprising the steps of establishing a pCELL database in which a location measurement service target area is divided into lattices each having a predetermined size; continuously determining whether a request for location measurement occurs by a service subscriber; and, when the request for location measurement is generated, comparing fundamental information received from a mobile terminal with the pCELL database, determining a matching pCELL, and reporting the pCELL to the service requester. Furthermore, the present invention is constructed to periodically update a initially established pCELL database using the results of A-GPS-based location measurement and reflect variation in BTSs within a mobile communication network to the pCELL database, thereby always maintaining the optimal database.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: July 3, 2012
    Assignees: SK Telecom Co., Ltd., SK Planet Co., Ltd.
    Inventors: Hoon-Ju Lee, Jung-Woo Lee, Kwan-Seok Lee
  • Publication number: 20080287140
    Abstract: The present invention provides a network-based location measurement method using a pCELL database, comprising the steps of establishing a pCELL database in which a location measurement service target area is divided into lattices each having a predetermined size; continuously determining whether a request for location measurement occurs by a service subscriber; and, when the request for location measurement is generated, comparing fundamental information received from a mobile terminal with the pCELL database, determining a matching pCELL, and reporting the pCELL to the service requester. Furthermore, the present invention is constructed to periodically update a initially established pCELL database using the results of A-GPS-based location measurement and reflect variation in BTSs within a mobile communication network to the pCELL database, thereby always maintaining the optimal databae.
    Type: Application
    Filed: October 4, 2006
    Publication date: November 20, 2008
    Inventors: Hoon-Ju Lee, Jung-Woo Lee, Kwan-Seok Lee