Patents by Inventor Dohoon Ha

Dohoon Ha 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).

  • Disguised power-off method for a mobile communication terminal
    Patent number: 8195248
    Abstract: The present invention relates to a method of determining the location of a mobile terminal using disguised power-off, wherein if a mobile terminal is powered off in a state where a mobile communication service subscriber does not intend to do so, only the location indication function of the mobile terminal operates, but the remaining functions are terminated as if power of the mobile terminal is turned off. In accordance with the present invention, it is determined whether the subscriber terminal is actually powered off or powered off in a disguised manner. All the power of the subscriber terminal is shut off, or all the power except for power for a function of sending a location signal is shut off, depending on the type of power-off.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: June 5, 2012
    Assignee: SK Telecom Co., Ltd.
    Inventors: Dohoon Ha, Sangwoon Kwon, Jaeyoung Ju
  • Disguised Power-Off Method for a Mobile Communication Terminal
    Publication number: 20080051101
    Abstract: The present invention relates to a method of determining the location of a mobile terminal using disguised power-off, wherein if a mobile terminal is powered off in a state where a mobile communication service subscriber does not intend to do so, only the location indication function of the mobile terminal operates, but the remaining functions are terminated as if power of the mobile terminal is turned off. In accordance with the present invention, it is determined whether the subscriber terminal is actually powered off or powered off in a disguised manner. All the power of the subscriber terminal is shut off, or all the power except for power for a function of sending a location signal is shut off, depending on the type of power-off.
    Type: Application
    Filed: June 29, 2005
    Publication date: February 28, 2008
    Applicant: SK TELECOM CO., LTD.
    Inventors: Dohoon Ha, Sangwoon Kwon, Jaeyoung Ju