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).
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Patent number: 11616600Abstract: An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time -interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and a boundary between the time interleaver groups is a boundary between Physical Layer Pipes (PLPs) of a core layer corresponding to the core layer signal.Type: GrantFiled: November 15, 2021Date of Patent: March 28, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun-Hyoung Kwon, Jae-Young Lee, Sung-Ik Park, Bo-Mi Lim, Heung-Mook Kim, Jin-Hyuk Song
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Patent number: 11403512Abstract: 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: GrantFiled: May 8, 2020Date of Patent: August 2, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Myung-Sun Baek, Jin-Hyuk Song, Byung-Jun Bae, Dong-Joon Choi
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Patent number: 11329794Abstract: 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 cType: GrantFiled: December 26, 2019Date of Patent: May 10, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Myung Sun Baek, Jin Hyuk Song, Joon Young Jung, Heung Mook Kim, Yong Seong Cho
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Publication number: 20220077959Abstract: An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling time interleaver information corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and a boundary between the time interleaver groups is a boundary between Physical Layer Pipes (PLPs) of a core layer corresponding to the core layer signal.Type: ApplicationFiled: November 15, 2021Publication date: March 10, 2022Inventors: Sun-Hyoung KWON, Jae-Young LEE, Sung-Ik PARK, Bo-Mi LIM, Heung-Mook KIM, Jin-Hyuk SONG
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Patent number: 11206103Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.Type: GrantFiled: August 15, 2019Date of Patent: December 21, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun-Hyoung Kwon, Jae-Young Lee, Sung-Ik Park, Bo-Mi Lim, Heung-Mook Kim, Jin-Hyuk Song
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Publication number: 20210211336Abstract: Disclosed herein are a synchronization apparatus and method for a upstream system. The synchronization apparatus for a upstream system includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive a signal and calculate a first channel estimation value for the received signal using a predefined pilot, and calculate a second channel estimation value using a predefined complementary pilot and the first channel estimation value.Type: ApplicationFiled: May 4, 2020Publication date: July 8, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwan-Woong RYU, Jin-Hyuk SONG, Joon-Young JUNG, Dong-Joon CHOI
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Patent number: 11050593Abstract: Disclosed herein are a synchronization apparatus and method for a upstream system. The synchronization apparatus for a upstream system includes one or more processors, and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to receive a signal and calculate a first channel estimation value for the received signal using a predefined pilot, and calculate a second channel estimation value using a predefined complementary pilot and the first channel estimation value.Type: GrantFiled: May 4, 2020Date of Patent: June 29, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwan-Woong Ryu, Jin-Hyuk Song, Joon-Young Jung, Dong-Joon Choi
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Publication number: 20210110238Abstract: 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: ApplicationFiled: May 8, 2020Publication date: April 15, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Myung-Sun BAEK, Jin-Hyuk SONG, Byung-Jun BAE, Dong-Joon CHOI
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Patent number: 10892797Abstract: 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: GrantFiled: January 8, 2020Date of Patent: January 12, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Myung-Sun Baek, Jin Hyuk Song, Joon Young Jung, Heung Mook Kim, Eun Hee Hyun
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Publication number: 20200220573Abstract: 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: ApplicationFiled: January 8, 2020Publication date: July 9, 2020Applicant: Electronics and Telecommunications Research InstituteInventors: Myung-Sun BAEK, Jin Hyuk SONG, Joon Young JUNG, Heung Mook KIM, Eun Hee HYUN
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Publication number: 20200213072Abstract: 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 cType: ApplicationFiled: December 26, 2019Publication date: July 2, 2020Applicant: Electronics and Telecommunications Research InstituteInventors: Myung Sun BAEK, Jin Hyuk SONG, Joon Young JUNG, Heung Mook KIM, Yong Seong CHO
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Patent number: 10700895Abstract: 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: GrantFiled: January 8, 2018Date of Patent: June 30, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Hwui Bae, Jin Hyuk Song, Je Won Lee, Joon Young Jung, Dong Joon Choi, Nam Ho Hur
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Publication number: 20190372715Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.Type: ApplicationFiled: August 15, 2019Publication date: December 5, 2019Inventors: Sun-Hyoung KWON, Jae-Young LEE, Sung-Ik PARK, Bo-Mi LIM, Heung-Mook KIM, Jin-Hyuk SONG
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Patent number: 10439760Abstract: An apparatus and method for broadcast signal frame using a boundary between Physical Layer Pipes (PLPs) of a core layer are disclosed.Type: GrantFiled: March 25, 2016Date of Patent: October 8, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun-Hyoung Kwon, Jae-Young Lee, Sung-Ik Park, Bo-Mi Lim, Heung-Mook Kim, Jin-Hyuk Song
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Patent number: 10425906Abstract: 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: GrantFiled: November 21, 2017Date of Patent: September 24, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sang-Jung Ra, Jin-Hyuk Song, Ho-Sook Lee, Dong-Joon Choi, Joon-Young Jung, Nam-Ho Hur
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Patent number: 10374003Abstract: 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: GrantFiled: December 21, 2017Date of Patent: August 6, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Pun Jae Choi, Jacob Chang-Lin Tarn, Han Kyu Seong, Jin Hyuk Song, Yoon Joon Choi
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Publication number: 20190173709Abstract: 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: ApplicationFiled: June 26, 2018Publication date: June 6, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Myung-Sun BAEK, Jin-Hyuk SONG, Joon-Young JUNG, Heung-Mook KIM
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Patent number: 10193687Abstract: 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: GrantFiled: February 24, 2017Date of Patent: January 29, 2019Assignee: Electronics and Telecommunications Research InstituteInventors: Jae Hwui Bae, Sang Jung Ra, Jin Hyuk Song, Dong Joon Choi, Nam Ho Hur
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Publication number: 20180350872Abstract: 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: ApplicationFiled: December 21, 2017Publication date: December 6, 2018Inventors: Pun Jae CHOI, Jacob Chang-Lin TARN, Han Kyu SEONG, Jin Hyuk SONG, Yoon Joon CHOI
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Patent number: 10110275Abstract: 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: GrantFiled: July 21, 2017Date of Patent: October 23, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Hwui Bae, Sang-Jung Ra, Jin Hyuk Song, Joon Young Jung, Dong Joon Choi, Namho Hur