Patents by Inventor Ho-Min Eum

Ho-Min Eum 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).

  • Publication number: 20210099687
    Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for input videos; extracting patches from the input videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, the metadata may include information on a priority order of pruning among input videos.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hong Chang SHIN, Gwang Soon LEE, Ho Min EUM, Jun Young JEONG, Kug Jin YUN
  • Publication number: 20210092346
    Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for source videos; extracting patches from the source videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, the metadata may include first threshold information that becomes a criterion for distinguishing between a valid pixel and an invalid pixel in the atlas video.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 25, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gwang Soon LEE, Hong Chang SHIN, Ho Min EUM, Jun Young JEONG
  • Publication number: 20210067757
    Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method includes: determining a priority order of pruning for source videos; extracting patches from the source videos based on the priority order of pruning; generating at least one atlas based on the extracted patches; and encoding metadata. Herein, a first flag indicating whether or not an atlas includes a patch including information on an entire region of a first source video may be encoded into the metadata.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kug Jin YUN, Jun Young JEONG, Gwang Soon LEE, Hong Chang SHIN, Ho Min EUM
  • Publication number: 20210006764
    Abstract: An immersive video processing method according to the present disclosure includes determining a priority order of pruning for source view videos, generating a residual video for an additional view video based on the priority order of pruning, packing a patch generated based on the residual video into an atlas video, and encoding the atlas video.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Applicants: Electronics and Telecommunications Research Institute, IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Hong Chang SHIN, Gwang Soon LEE, Ho Min EUM, Jun Young JEONG, Jong Il PARK, Jun Young YUN
  • Publication number: 20210006830
    Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method may include classifying a multiplicity of source view videos into base view videos and additional view videos, generating residual data for the additional view videos, packing a patch, which is generated based on the residual data, into an altas video, and generating metadata for the patch.
    Type: Application
    Filed: March 19, 2020
    Publication date: January 7, 2021
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kug Jin YUN, Jun Young JEONG, Gwang Soon LEE, Hong Chang SHIN, Ho Min EUM, Sang Woon KWAK
  • Publication number: 20200396485
    Abstract: A video encoding method of encoding a multi-view image including one or more basic view images and a plurality of reference view images includes determining a pruning order of the plurality of reference view images, acquiring a plurality of residual reference view images, by pruning the plurality of reference view images based on the one or more basic view images according to the pruning order, encoding the one or more basic view images and the plurality of residual reference view images, and outputting a bitstream including encoding information of the one or more basic view images and the plurality of residual reference view images.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 17, 2020
    Applicants: Electronics and Telecommunications Research Institute, IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Hong Chang SHIN, Gwang Soon LEE, Ho Min EUM, Jun Young JEONG, Kug Jin YUN, Jun Young YUN, Jong Il PARK
  • Publication number: 20180052309
    Abstract: Disclosed herein are a method for expanding a field of view of a head-mounted display device and an apparatus using the method. The method for expanding a field of view of a head-mounted display device projects a virtual image onto an eye of a user who wears the head-mounted display device. The method includes displaying an image using a curved display and a curved optical lens, and enlarging a virtual image corresponding to the image and projecting an enlarged virtual image at a location farther away from the eye of the user than the curved display using the curved optical lens, wherein the curved optical lens is located closer to the eye of the user than the curved display.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 22, 2018
    Inventors: Gwang-Soon LEE, Ho-Min EUM, Eung-Don LEE
  • Publication number: 20170302912
    Abstract: A method and device for increasing a resolution for each viewpoint in a glassless three-dimensional (3D) display. A method of controlling a three-dimensional (3D) display device including a display panel and a lens includes performing time-division on a plurality of viewpoint images such that each of the viewpoint images is divided into n division images, transferring the division images to the display panel by increasing n times a frame rate of the division images, and controlling the lens such that the division images transferred to the display panel pass through a lens cell.
    Type: Application
    Filed: April 14, 2017
    Publication date: October 19, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ho Min EUM, Gwang Soon LEE
  • Patent number: 9794027
    Abstract: A method and apparatus for generating frames to apply error correction to data including a plurality of consecutive data groups are provided. Upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, the number of first code rate frames, which is the number of frames in the n-th data group for which a first code rate is used, is calculated based on the number of first code rate bits calculated based on the ratio of the length of data in an (n?1)-th data group for which the first code rate is used. The number of second code rate frames, which is the number of frames in the n-th data group for which the second code rate is used, is calculated based on the number of second code rate bits calculated based on the number of first code rate bits. Frames for error correction are generated based on the number of first code rate frames and the number of second code rate frames.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: October 17, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Ho Min Eum
  • Patent number: 9686042
    Abstract: Disclosed is a method of transmitting, by a transmission device, broadcast signals in a frequency-shared terrestrial broadcast system. The method includes generating the broadcast signals including pilot signals arranged at a physical layer frame based on a group identification (ID) defined according to a broadcast service, and transmitting the generated broadcast signals to a reception device, wherein the positions of the pilot signals arranged at the physical layer frame are different by group IDs.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: June 20, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Ik Park, Sun Hyoung Kwon, Heung Mook Kim, Nam Ho Hur, Jeong Chang Kim, Jae Hyun Seo, Ho Min Eum
  • Publication number: 20150349915
    Abstract: A method and apparatus for generating frames to apply error correction to data including a plurality of consecutive data groups are provided. Upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, the number of first code rate frames, which is the number of frames in the n-th data group for which a first code rate is used, is calculated based on the number of first code rate bits calculated based on the ratio of the length of data in an (n?1)-th data group for which the first code rate is used. The number of second code rate frames, which is the number of frames in the n-th data group for which the second code rate is used, is calculated based on the number of second code rate bits calculated based on the number of first code rate bits. Frames for error correction are generated based on the number of first code rate frames and the number of second code rate frames.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 3, 2015
    Inventor: Ho Min EUM
  • Publication number: 20150312645
    Abstract: When a disaster occurs, a disaster information transmitting apparatus generates disaster information, spreads the disaster information with a spreading code, modulates the spread disaster information, and transmits the modulated disaster information using a guard band of a broadcasting frequency band.
    Type: Application
    Filed: April 2, 2015
    Publication date: October 29, 2015
    Inventors: You Seok LEE, Kwanwoong RYU, Heung Mook KIM, Jin Hyuk SONG, Jae Hyun SEO, Ho Min EUM
  • Publication number: 20150163013
    Abstract: Disclosed is a method of transmitting, by a transmission device, broadcast signals in a frequency-shared terrestrial broadcast system. The method includes generating the broadcast signals including pilot signals arranged at a physical layer frame based on a group identification (ID) defined according to a broadcast service, and transmitting the generated broadcast signals to a reception device, wherein the positions of the pilot signals arranged at the physical layer frame are different by group IDs.
    Type: Application
    Filed: April 11, 2014
    Publication date: June 11, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Ik PARK, Sun Hyoung KWON, Heung Mook KIM, Nam Ho HUR, Jeong Chang KIM, Jae Hyun SEO, Ho Min EUM
  • Patent number: 8934834
    Abstract: Provided are an on-channel repeater and an on-channel repeating method.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: January 13, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Heung-Mook Kim, Jae-Hyun Seo, Ho-Min Eum, Jae-Young Lee, Yong-Tae Lee, Jong-Soo Lim, Soo-In Lee
  • Patent number: 8837553
    Abstract: Provided are an apparatus for addition data transmission includes: an IF broadcasting signal generating unit receiving the broadcast data, and FEC and modulation of the received broadcast data to generate a broadcasting signal in an intermediate frequency (IF) band; an IF addition signal generating unit receiving the addition data to generate an addition signal in the IF band by using direct sequence spread spectrum (DSSS); an average power controlling unit controlling average power of the addition signal in the IF band; a signal combining unit combining the broadcasting signal in the IF band and the addition signal in the IF band to generate a combination signal; an RF upward converting unit upwardly converting the combination signal in a signal in a radio frequency (RF) band to a combination signal in the RF band; and a transmitting unit transmitting the combination signal in the RF band.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 16, 2014
    Assignees: Electronics and Telecommunications Research Institute, Seoul, Republic of Korea, Nextwill Co., Ltd.
    Inventors: Sung Ik Park, Hyoungsoo Lim, Ho Min Eum, Jae Hyun Seo, Heung Mook Kim, Nam Ho Hur, Young Woo Suh, Jae Kwon Lee, Ha Kyun Mok, Won Gi Seo, Ju Byung Kim
  • Publication number: 20140213207
    Abstract: The present invention provides a method and apparatus for compensating for a frequency offset. The apparatus for compensating for a frequency offset includes a signal processing unit configured to receive a first frequency signal from a GPS receiver, a local oscillator configured to transfer a second frequency signal to the GPS receiver so that the first frequency signal is generated, and a frequency offset compensation unit configured to receive frequency offset information, obtained when the first frequency signal is generated, from the GPS receiver and remove a frequency offset component of the local oscillator based on the frequency offset information.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 31, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ho Min EUM, Heung Mook KIM
  • Patent number: 8767890
    Abstract: Provided is an apparatus and method for analyzing identification (ID) signals by converting radio frequency (RF) signals which are transmitted with an ID signal added thereto by a transmitting part, e.g., a plurality of transmitters or repeaters, into signals of a desired band; creating ID signals that are identical to the ID signals added to the RF signals; calculating correlation values between the converted signals and the created ID signals based on partial correlation; and extracting channel profile of multi-path signals caused by a channel between the transmitting part and the ID signal analyzing apparatus from the correlation value. The technology of the present research is applied to broadcasting and communication.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: July 1, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Jae-Young Lee, Jae-Hyun Seo, Ho-Min Eum, Heung-Mook Kim, Jong-Soo Lim, Soo-In Lee
  • Patent number: 8681911
    Abstract: Provided is an identification signal analyzing apparatus and method for compensating power of a channel profile occurring at a conventional identification signal analyzing apparatus by using a power compensation. The identification signal analyzing apparatus includes: an identification signal generator for generating an identification signal identical to a known identification signal inserted by a transmission device; a partial correlator for calculating a correlation value between a received signal including the known identification signal inserted by the transmission device and the identification signal generated by the identification signal generator through a partial correlation; a power compensator for compensating power of the correlation value calculated by the partial correlator; and a channel profile extractor for extracting a channel profile from the correlation value compensated by the power compensator.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: March 25, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Young Lee, Sung-Ik Park, Ho-Min Eum, Jae-Hyun Seo, Heung-Mook Kim, Jong-Soo Lim, Soo-In Lee
  • Patent number: 8619895
    Abstract: Disclosed are a method and an apparatus for transmitting and receiving broadcast data in a digital broadcasting system. The method for transmitting and receiving broadcast data in a digital broadcasting system includes receiving the main data encoded with symbols having a plurality of levels; deciding whether levels of main data symbols encoded with symbols having the plurality of levels belong to a first group; and mapping the main data symbols to extended levels by using modulation values of the additional data if it is decided that the levels of the main data symbols belong to the first group.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 31, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Hyun Seo, Sung-Ik Park, Ho-Min Eum, Hyoung-Soo Lim, Heung-Mook Kim, Soo-In Lee
  • Patent number: 8601353
    Abstract: An apparatus for transmitting data in a communication system includes: a first repeater configured to repeat information bits of data to be transmitted a first repetition number of times; an interleaver configured to interleave the information bits repeated the first repetition number of times; an accumulator configured to accumulate-code the interleaved information bits; a second repeater configured to repeat the accumulate-coded information bits a second repetition number of times; a puncturer configured to puncture the information bits repeated the second repetition number of times; and a P/S converter configured to convert the punctured information bits and the information bits of the data and output RA-coded information bits.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 3, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Hyoungsoo Lim, Jae-Hyun Seo, Ho-Min Eum, Heung-Mook Kim, Donghoon Kang, Wangrok Oh