Patents by Inventor Heejune Ahn

Heejune Ahn 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).

  • 360-degree image encoding apparatus and method, and recording medium for performing the same
    Patent number: 10986342
    Abstract: Provided is a 360-degree image encoding apparatus and method, and a recording medium for performing the same function. The 360-degree image encoding apparatus divides an input image to be encoded into a plurality of regions in a vertical direction and encodes the divided regions while changing resolutions thereof so that all regions have the same resolution to maintain pixel continuity among the regions when a predictive image is generated and the regions have resolutions changed according to the degree of distortion of the regions when a residue image is encoded.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: April 20, 2021
    Assignees: Foundation for Research and Business, Seoul National University of Science and Technology, Industry-University Cooperation Foundation Korea Aerospace University
    Inventors: Heejune Ahn, Myeongjin Lee
  • 360-DEGREE IMAGE ENCODING APPARATUS AND METHOD, AND RECORDING MEDIUM FOR PERFORMING THE SAME
    Publication number: 20200107022
    Abstract: Provided is a 360-degree image encoding apparatus and method, and a recording medium for performing the same function. The 360-degree image encoding apparatus divides an input image to be encoded into a plurality of regions in a vertical direction and encodes the divided regions while changing resolutions thereof so that all regions have the same resolution to maintain pixel continuity among the regions when a predictive image is generated and the regions have resolutions changed according to the degree of distortion of the regions when a residue image is encoded.
    Type: Application
    Filed: November 23, 2017
    Publication date: April 2, 2020
    Inventors: Heejune AHN, Myeongjin LEE
  • Method of selecting base transceiver system in communication system
    Patent number: 6901254
    Abstract: A method of selecting a base transceiver system (or sector) in an area where signals from various base transceiver systems (or sectors) are superimposed. In order to be suitable for a system that aims at the packet transmission such as the high data rate (HDR) communication system, the load information of the base transceiver system (or sector) is transmitted to the mobile station. The mobile station selects the optimum base transceiver system (or sector) according to the load information, and requests the down-link data transmission to the base transceiver system at the desired data transmission rate.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: May 31, 2005
    Assignee: LG Electronics Inc.
    Inventor: Heejune Ahn
  • Method of selecting base transceiver system in communication system
    Publication number: 20020022487
    Abstract: A method of selecting a base transceiver system (or sector) in an area where signals from various base transceiver systems (or sectors) are superimposed is disclosed. In order to be suitable for a system that aims at the packet transmission such as the high data rate (HDR) communication system, the load information of the base transceiver system (or sector) is transmitted to the mobile station. The mobile station selects the optimum base transceiver system (or sector) according to the load information, and requests the down-link data transmission to the base transceiver system at the desired data transmission rate.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 21, 2002
    Applicant: LG Electronics Inc.
    Inventor: Heejune Ahn