Patents by Inventor Key-chang Khim

Key-chang Khim 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: 11164397
    Abstract: According to an embodiment of the disclosure, a method for providing a parking service by a server configured to provide the parking service comprises obtaining a vehicle image from a closed-circuit television (CCTV) camera installed on each of both sides of each parking section of a parking lot in a direction facing a vehicle entering to capture an inside of the parking section in a direction perpendicular to an parking orientation of the vehicle, extracting a license plate of the vehicle from at least one frame included in the obtained vehicle image and tracking a trajectory of an XY-coordinate point of each vertex of the extracted license plate, detecting a time when the trajectory of the XY-coordinate point changes from a linear trajectory to a non-linear trajectory and grouping at least one frame obtained before the time into an image for the vehicle, and mapping and storing at least one license plate number recognized from the at least one frame grouped as a license plate number of the vehicle.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: November 2, 2021
    Inventors: Key Chang Khim, Chang Dong Kim
  • Publication number: 20200193721
    Abstract: According to an embodiment of the disclosure, a method for providing a parking service by a server configured to provide the parking service comprises obtaining a vehicle image from a closed-circuit television (CCTV) camera installed on each of both sides of each parking section of a parking lot in a direction facing a vehicle entering to capture an inside of the parking section in a direction perpendicular to an parking orientation of the vehicle, extracting a license plate of the vehicle from at least one frame included in the obtained vehicle image and tracking a trajectory of an XY-coordinate point of each vertex of the extracted license plate, detecting a time when the trajectory of the XY-coordinate point changes from a linear trajectory to a non-linear trajectory and grouping at least one frame obtained before the time into an image for the vehicle, and mapping and storing at least one license plate number recognized from the at least one frame grouped as a license plate number of the vehicle.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 18, 2020
    Inventors: Key Chang KHIM, Chang Dong KIM
  • Patent number: 8279088
    Abstract: The present invention relates to a parking management system. The parking management system includes an entrance camera (100) installed at an entrance of a parking lot to photograph a vehicle that enters the parking lot. An exit camera (200) photographs a vehicle that departs from the parking lot. A plurality of region cameras (300) is installed in respective parking regions to photograph a vehicle. A management server (400) includes a vehicle license number recognition unit (450) for recognizing a vehicle license number, a registration unit (460) for registering a last photographed parking region on a parking ticket, a control unit (440) for calculating a number of available parking spaces for each parking region, and determining a total number of available parking spaces, and a guidance unit (470) for guiding an entering vehicle to an available parking region. A display unit (350) displays the number of available parking spaces.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: October 2, 2012
    Inventor: Key-chang Khim
  • Publication number: 20090303079
    Abstract: The present invention relates to a parking management system. The parking management system includes an entrance camera (100) installed at an entrance of a parking lot to photograph a vehicle that enters the parking lot. An exit camera (200) photographs a vehicle that departs from the parking lot. A plurality of region cameras (300) is installed in respective parking regions to photograph a vehicle. A management server (400) includes a vehicle license number recognition unit (450) for recognizing a vehicle license number, a registration unit (460) for registering a last photographed parking region on a parking ticket, a control unit (440) for calculating a number of available parking spaces for each parking region, and determining a total number of available parking spaces, and a guidance unit (470) for guiding an entering vehicle to an available parking region. A display unit (350) displays the number of available parking spaces.
    Type: Application
    Filed: September 8, 2006
    Publication date: December 10, 2009
    Inventor: Key-chang Khim