Patents by Inventor Jin Hyuk Song

Jin Hyuk Song 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: 20210110238
    Abstract: Disclosed herein are an apparatus and method for detecting a broadcast signal. The apparatus includes a bootstrap detection unit for detecting whether a bootstrap signal is included in a received broadcast signal based on a preset first bootstrap window and a machine-learning method, a bootstrap offset estimation unit for searching the broadcast signal for the start point of the bootstrap signal using a preset second bootstrap window, estimating a bootstrap offset based on the machine-learning method, and estimating bootstrap symbols from the bootstrap offset, and a demodulation unit for demodulating information included in the broadcast signal from the bootstrap symbols based on the machine-learning method.
    Type: Application
    Filed: May 8, 2020
    Publication date: April 15, 2021
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Myung-Sun BAEK, Jin-Hyuk SONG, Byung-Jun BAE, Dong-Joon CHOI
  • Patent number: 10892797
    Abstract: An apparatus and a method for processing an uplink signal of cable broadcasting network including: modulating uplink data to be transmitted to a broadcasting station which is located at an end of the cable broadcasting network into a plurality of symbols; performing a correlation-coding on the plurality of symbols; and outputting an analog radio frequency (RF) signal corresponding to the plurality of correlation-coded symbols are provided.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: January 12, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myung-Sun Baek, Jin Hyuk Song, Joon Young Jung, Heung Mook Kim, Eun Hee Hyun
  • Publication number: 20200220573
    Abstract: An apparatus and a method for processing an uplink signal of cable broadcasting network including: modulating uplink data to be transmitted to a broadcasting station which is located at an end of the cable broadcasting network into a plurality of symbols; performing a correlation-coding on the plurality of symbols; and outputting an analog radio frequency (RF) signal corresponding to the plurality of correlation-coded symbols are provided.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Myung-Sun BAEK, Jin Hyuk SONG, Joon Young JUNG, Heung Mook KIM, Eun Hee HYUN
  • Publication number: 20200213072
    Abstract: Disclosed are a method and a device for transmitting and receiving a signal, the method including: identifying a downlink signal-only transmission section in which a first electronic device transmits a downlink signal to a second electronic device, and transmitting the signal in the downlink signal-only transmission section; detecting at least one symbol that has a power value relatively higher than a predetermined threshold value; estimating, on the basis of the detected at least one symbol, an interference channel in which a self-interference signal occurs; detecting the self-interference signal; and identifying an FDX transmission section in which an uplink signal is received from the second electronic device and the downlink signal is transmitted simultaneously, and processing transmission of the downlink signal and reception of the uplink signal in the FDX transmission section, wherein the reception of the uplink signal is processed by removing the self-interference signal occurring in the interference c
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Myung Sun BAEK, Jin Hyuk SONG, Joon Young JUNG, Heung Mook KIM, Yong Seong CHO
  • Patent number: 10700895
    Abstract: Disclosed are a roll-off period detection method, a symbol starting point detection method, a fractional frequency offset estimating method, and an OFDM downstream system using the same. A method of detecting a roll-off period in an OFDM downstream system according to an embodiment of the present disclosure may include: generating a temporary roll-off period by applying a windowing function to a signal having a preset length; and detecting a roll-off period based on any one of a cross correlation and a sum of differences between a detection target signal included in a range of two OFDM symbol signals based on a detection starting point, and the temporary roll-off period.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 30, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Hwui Bae, Jin Hyuk Song, Je Won Lee, Joon Young Jung, Dong Joon Choi, Nam Ho Hur
  • Publication number: 20190372715
    Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.
    Type: Application
    Filed: August 15, 2019
    Publication date: December 5, 2019
    Inventors: Sun-Hyoung KWON, Jae-Young LEE, Sung-Ik PARK, Bo-Mi LIM, Heung-Mook KIM, Jin-Hyuk SONG
  • Patent number: 10439760
    Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: October 8, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun-Hyoung Kwon, Jae-Young Lee, Sung-Ik Park, Bo-Mi Lim, Heung-Mook Kim, Jin-Hyuk Song
  • Patent number: 10425906
    Abstract: Disclosed herein are an apparatus and method for detecting an upstream RF signal based on a preamble. The apparatus for detecting an upstream RF signal based on a preamble includes an analog-to-digital converter unit for receiving an RF analog signal and converting the same into an RF digital signal; a down-converter unit for converting the RF digital signal into a baseband digital signal; a packet detection unit for performing packet detection by performing an operation on the baseband digital signal and preset differential preamble signals; and a timing calculation unit for generating timing information of a terminal device based on the baseband digital signal and time information generated through the packet detection.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: September 24, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sang-Jung Ra, Jin-Hyuk Song, Ho-Sook Lee, Dong-Joon Choi, Joon-Young Jung, Nam-Ho Hur
  • Patent number: 10374003
    Abstract: A semiconductor light emitting device includes a plurality of light emitting cells having first and second surface opposing each other, the plurality of light emitting cells including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer therebetween, an insulating layer on the second surface of the plurality of light emitting cells and having first and second openings defining a first contact region of the first conductivity-type semiconductor layer and a second contact region of the second conductivity-type semiconductor layer, respectively, a connection electrode on the insulating layer and connecting a first contact region and a second contact region of adjacent light emitting cells, a transparent support substrate on the first surface of the plurality of light emitting cells, and a transparent bonding layer between the plurality of light emitting cells and the transparent support substrate.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Pun Jae Choi, Jacob Chang-Lin Tarn, Han Kyu Seong, Jin Hyuk Song, Yoon Joon Choi
  • Publication number: 20190173709
    Abstract: Disclosed herein are an apparatus and method for reducing signal distortion. The apparatus for reducing signal distortion includes a signal input unit for receiving Orthogonal Frequency Division Multiplexing (OFDM) signals, a symbol selection unit for selecting an OFDM symbol having a lowest Peak-to-Average-Power-Ratio (PAPR) by applying selective mapping (SLM) to the OFDM signals, an information generation unit for generating side information that includes information about a phase-shift sequence of the selected OFDM symbol, and a signal output unit for outputting a resulting signal by adding the side information to the selected OFDM symbol.
    Type: Application
    Filed: June 26, 2018
    Publication date: June 6, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Myung-Sun BAEK, Jin-Hyuk SONG, Joon-Young JUNG, Heung-Mook KIM
  • Patent number: 10193687
    Abstract: Disclosed are a method for acquiring synchronization in a cable network, and a physical (PHY) transmitter and PHY receiver. The method for acquiring synchronization in a cable network according to an embodiment includes receiving, by a PHY receiver, a signal from a PHY transmitter, and acquiring, by the PHY receiver, channel synchronization when a symbol in which a channel preamble exists is detected from the received signal and a position of a frequency in which a channel subcarrier exists is detected from the detected symbol by performing a cross correlation operation on the received signal and the channel preamble.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 29, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Hwui Bae, Sang Jung Ra, Jin Hyuk Song, Dong Joon Choi, Nam Ho Hur
  • Publication number: 20180350872
    Abstract: A semiconductor light emitting device includes a plurality of light emitting cells having first and second surface opposing each other, the plurality of light emitting cells including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer therebetween, an insulating layer on the second surface of the plurality of light emitting cells and having first and second openings defining a first contact region of the first conductivity-type semiconductor layer and a second contact region of the second conductivity-type semiconductor layer, respectively, a connection electrode on the insulating layer and connecting a first contact region and a second contact region of adjacent light emitting cells, a transparent support substrate on the first surface of the plurality of light emitting cells, and a transparent bonding layer between the plurality of light emitting cells and the transparent support substrate.
    Type: Application
    Filed: December 21, 2017
    Publication date: December 6, 2018
    Inventors: Pun Jae CHOI, Jacob Chang-Lin TARN, Han Kyu SEONG, Jin Hyuk SONG, Yoon Joon CHOI
  • Patent number: 10110275
    Abstract: A method of estimating an integer frequency offset and compensating for the integer frequency offset by an estimated error is provided. A frequency offset estimation method may include receiving a reception signal including PLC data and a physical layer link channel (PLC) preamble, detecting first position information on a position of a subcarrier of the PLC preamble in a frequency axis from the reception signal through a cross-correlation between the PLC preamble and the reception signal, detecting second position information on the position of the subcarrier of the PLC preamble defined in a transmission end by restoring the PLC data, and calculating a frequency offset by comparing the first position information with the second position information.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 23, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Hwui Bae, Sang-Jung Ra, Jin Hyuk Song, Joon Young Jung, Dong Joon Choi, Namho Hur
  • Publication number: 20180287823
    Abstract: Disclosed are a roll-off period detection method, a symbol starting point detection method, a fractional frequency offset estimating method, and an OFDM downstream system using the same. A method of detecting a roll-off period in an OFDM downstream system according to an embodiment of the present disclosure may include: generating a temporary roll-off period by applying a windowing function to a signal having a preset length; and detecting a roll-off period based on any one of a cross correlation and a sum of differences between a detection target signal included in a range of two OFDM symbol signals based on a detection starting point, and the temporary roll-off period.
    Type: Application
    Filed: January 8, 2018
    Publication date: October 4, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jae Hwui BAE, Jin Hyuk SONG, Je Won LEE, Joon Young JUNG, Dong Joon CHOI, Nam Ho HUR
  • Publication number: 20180167902
    Abstract: Disclosed herein are an apparatus and method for detecting an upstream RF signal based on a preamble. The apparatus for detecting an upstream RF signal based on a preamble includes an analog-to-digital converter unit for receiving an RF analog signal and converting the same into an RF digital signal; a down-converter unit for converting the RF digital signal into a baseband digital signal; a packet detection unit for performing packet detection by performing an operation on the baseband digital signal and preset differential preamble signals; and a timing calculation unit for generating timing information of a terminal device based on the baseband digital signal and time information generated through the packet detection.
    Type: Application
    Filed: November 21, 2017
    Publication date: June 14, 2018
    Inventors: Sang-Jung Ra, Jin-Hyuk Song, Ho-Sook Lee, Dong-Joon Choi, Joon-Young Jung, Nam-Ho Hur
  • Publication number: 20180102808
    Abstract: A method of estimating an integer frequency offset and compensating for the integer frequency offset by an estimated error is provided. A frequency offset estimation method may include receiving a reception signal including PLC data and a physical layer link channel (PLC) preamble, detecting first position information on a position of a subcarrier of the PLC preamble in a frequency axis from the reception signal through a cross-correlation between the PLC preamble and the reception signal, detecting second position information on the position of the subcarrier of the PLC preamble defined in a transmission end by restoring the PLC data, and calculating a frequency offset by comparing the first position information with the second position information.
    Type: Application
    Filed: July 21, 2017
    Publication date: April 12, 2018
    Inventors: Jae Hwui BAE, Sang-Jung RA, Jin Hyuk SONG, Joon Young JUNG, Dong Joon CHOI, Namho HUR
  • Publication number: 20170324541
    Abstract: Disclosed are a method for acquiring synchronization in a cable network, and a physical (PHY) transmitter and PHY receiver. The method for acquiring synchronization in a cable network according to an embodiment includes receiving, by a PHY receiver, a signal from a PHY transmitter, and acquiring, by the PHY receiver, channel synchronization when a symbol in which a channel preamble exists is detected from the received signal and a position of a frequency in which a channel subcarrier exists is detected from the detected symbol by performing a cross correlation operation on the received signal and the channel preamble.
    Type: Application
    Filed: February 24, 2017
    Publication date: November 9, 2017
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jae Hwui BAE, Sang Jung RA, Jin Hyuk SONG, Dong Joon CHOI, Nam Ho HUR
  • Publication number: 20170294987
    Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.
    Type: Application
    Filed: March 25, 2016
    Publication date: October 12, 2017
    Inventors: Sun-Hyoung KWON, Jae-Young LEE, Sung-Ik PARK, Bo-Mi LIM, Heung-Mook KIM, Jin-Hyuk SONG
  • Publication number: 20170279648
    Abstract: Disclosed is a an apparatus for reducing a reducing a peak to average power ratio (PAPR) for layer division multiplexing (LDM) in an orthogonal frequency division multiplexing (OFDM) system, the apparatus may include a peak remover configured to detect a peak power value of a subcarrier signal that is input and generate a peak removal signal that decreases the detected peak power value, and a processor configured to perform constellation remapping on a first signal generated by combining the subcarrier signal and the peak removal signal and then generate a second signal into which additional data is inserted.
    Type: Application
    Filed: January 11, 2017
    Publication date: September 28, 2017
    Inventors: Jin Hyuk SONG, Sang Jung RA, Jae Hwui BAE, Dong Joon CHOI, Nam Ho HUR
  • 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