Patents by Inventor Maeng-Q Cha

Maeng-Q Cha 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).

  • Real-time RFID positioning system and method, repeater installation method therefor, position confirmation service system using the same
    Patent number: 8502670
    Abstract: Provided are to a real-time RFID location determination system for accurately determining a location of a mobile object using radio frequency identification (RFID) in real-time, a method thereof, and a method for installing a wireless repeater such as a RFID reader or a RFID reader and an access point (AP) using the same. The location determination system includes: a wireless repeater for identifying a radio frequency identification (RFID) tag by communicating with the RFID tag attached or installed at a target object to determine a location thereof, wherein the wireless repeater is installed a urban facility and a location of the target object is determined based on a coordinate of a corresponding urban facility as a reference point.
    Type: Grant
    Filed: October 20, 2007
    Date of Patent: August 6, 2013
    Assignee: KT Corporation
    Inventors: Maeng-Q Cha, Song-Hoon Baik, Myung-Woo Seo
  • REAL-TIME RFID POSITIONING SYSTEM AND METHOD, REPEATER INSTALLATION METHOD THEREFOR, POSITION CONFIRMATION SERVICE SYSTEM USING THE SAME
    Publication number: 20100295943
    Abstract: Provided are to a real-time RFID location determination system for accurately determining a location of a mobile object using radio frequency identification (RFID) in real-time, a method thereof, and a method for installing a wireless repeater such as a RFID reader or a RFID reader and an access point (AP) using the same. The location determination system includes: a wireless repeater for identifying a radio frequency identification (RFID) tag by communicating with the RFID tag attached or installed at a target object to determine a location thereof, wherein the wireless repeater is installed a urban facility and a location of the target object is determined based on a coordinate of a corresponding urban facility as a reference point.
    Type: Application
    Filed: October 20, 2006
    Publication date: November 25, 2010
    Applicant: KT Corporation
    Inventors: Maeng-Q Cha, Song-Hoon Baik, Myung-Woo Seo