Patents by Inventor Dong Joon Choi
Dong Joon Choi 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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Publication number: 20240103699Abstract: An electronic device including a touch-enabled display module configured to display a plurality of windows according to a multi-window mode; and a control module configured to displaying on the touch screen a first application window and a second application window according to the multi-window mode, alter the first application window in response to a touchscreen input received via the touch-enabled display, and automatically alter the second application window in response to the alteration of the first application window.Type: ApplicationFiled: November 6, 2023Publication date: March 28, 2024Inventors: Doo Suk KANG, Geon Soo KIM, Dong Hyun YEOM, Pil Joo YOON, Yong Joon JEON, Bo Kun CHOI
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Patent number: 11927890Abstract: A substrate processing apparatus includes a photoresist coater applying a photoresist film on a substrate, a humidifier increasing an amount of moisture in an ambient to which the photoresist film on the substrate is exposed, and an exposer irradiating the photoresist film exposed to the ambient having the increased amount of moisture with light. The humidifier is disposed between the photoresist coater and the exposer.Type: GrantFiled: August 22, 2022Date of Patent: March 12, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seok Heo, Cha Won Koh, Sang Joon Hong, Hyun Woo Kim, Kyung-Won Kang, Dong-Wook Kim, Kyung Won Seo, Young Il Jang, Yong Suk Choi
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Patent number: 11882481Abstract: Disclosed are an apparatus and method for providing an offloading service. A method of providing an offloading service according to an example embodiment includes streaming, to a user terminal including a cellular network receiver and a broadcast network receiver, media content data through a cellular network, transmitting, to the user terminal, an offloading service providing signal for activating the broadcast network receiver of the user terminal through the cellular network, transmitting, to the user terminal, a broadcast signal including connection information of a broadcast network to which the user terminal is to be connected so as to receive the media content data, through the cellular network, and broadcasting the media content data through the broadcast network.Type: GrantFiled: April 12, 2022Date of Patent: January 23, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Choul Kim, Sung Ik Park, Jae-young Lee, Hyun-Jeong Yim, Namho Hur, Dong Joon Choi
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Publication number: 20230318679Abstract: Disclosed herein is a method for signal configuration. The method may include evenly dividing, by a signal-bit configuration block, data or information forming signal bits or a signal bitstring and transferring the same to N multiple channels; mapping, by a first spatial path configuration block, a coded bitstring, which is generated through coding and signal processing of the data or information forming the signal bits or the signal bitstring, to cells corresponding to M antennas; and configuring, by a frequency path configuration block, the transmission paths of the cells.Type: ApplicationFiled: March 27, 2023Publication date: October 5, 2023Inventors: Jung-Sun UM, Sung-Ik PARK, Hoi-Yoon JUNG, Dong-Joon CHOI, Nam-Ho HUR
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Publication number: 20230283333Abstract: Disclosed herein are an apparatus and method for channel bonding-based multi-antenna signal transmission in a broadcasting system. An apparatus for channel bonding-based multi-antenna signal transmission includes an input formatting unit for converting input data into a Physical Layer Pipe (PLP), a stream partitioning unit for partitioning the PLP into pieces of data to be transmitted to two or more channels, respectively, and two or more transmission units for transmitting the pieces of data resulting from partitioning to corresponding channels through multiple antennas.Type: ApplicationFiled: March 1, 2023Publication date: September 7, 2023Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hoi-Yoon JUNG, Sung-Ik PARK, Jae-Hyun SEO, Bo-Mi LIM, Dong-Joon CHOI, Nam-Ho HUR, Jeong-Chang KIM
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Patent number: 11722355Abstract: Disclosed herein are an apparatus and method for transmitting and receiving a 4-layer layered-division multiplexing (LDM) signal. An apparatus for transmitting a 4-layer layered-division multiplexing signal includes a layered-division multiplexing modulation unit for generating a 3-layer layered-division multiplexing signal by performing layered-division multiplexing modulation on three layer signals and generating a 4-layer layered-division multiplexing signal by inserting a Pseudo-random Noise (PN) sequence into the 3-layer layered-division multiplexing signal, a pilot insertion unit for inserting a pilot into the 4-layer layered-division multiplexing signal, and a transmission unit for transmitting the 4-layer layered-division multiplexing signal.Type: GrantFiled: April 1, 2021Date of Patent: August 8, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae-Hwui Bae, Young-Su Kim, Dong-Joon Choi, Nam-Ho Hur
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Publication number: 20230199267Abstract: An adaptive multi-view streaming processing method and apparatus for a multi-view stream is disclosed. Specifically, disclosed herein is a method and apparatus for adaptively processing or transmitting adaptive streaming by reflecting network states and changes in transmission environments in a multi-view streaming service environment where several or more multiple videos are simultaneously transmitted at an arbitrary moment. An adaptive streaming processing method for a multi-view stream may comprise selecting and downloading an i-th segment of a main view stream with a first quality level, inferring a size of an i-th segment of downloadable neighboring view streams based on a download time and transfer rate of the i-th segment of the main view stream, and selecting a second quality level corresponding to the inferred size of the i-th segment of the neighboring view streams and downloading the i-th segment of the neighboring view streams based on the selected second quality level.Type: ApplicationFiled: August 25, 2022Publication date: June 22, 2023Inventors: Eun Hee HYUN, Kwan Woong RYU, Je Won LEE, Joon Young JUNG, Dong Joon CHOI
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Publication number: 20230144522Abstract: According to an embodiment of the present disclosure, there is provided a method and apparatus for transmitting/receiving a digital broadcast. The method for transmitting a digital broadcast, the method comprising: configuring AV data; configuring broadcast data; configuring application signaling information (ASI) by considering at least one of the AV data and the broadcast data or combination thereof; configuring an MPEG-based transport stream by multiplexing the AV data, the broadcast data and the ASI; and transmitting the MPEG-based transport stream, wherein the ASI includes data for driving an application executed by a broadcast receiver.Type: ApplicationFiled: September 8, 2022Publication date: May 11, 2023Inventors: Joon Young JUNG, Je Won LEE, Dong Joon CHOI
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Publication number: 20220330095Abstract: Disclosed are an apparatus and method for providing an offloading service. A method of providing an offloading service according to an example embodiment includes streaming, to a user terminal including a cellular network receiver and a broadcast network receiver, media content data through a cellular network, transmitting, to the user terminal, an offloading service providing signal for activating the broadcast network receiver of the user terminal through the cellular network, transmitting, to the user terminal, a broadcast signal including connection information of a broadcast network to which the user terminal is to be connected so as to receive the media content data, through the cellular network, and broadcasting the media content data through the broadcast network.Type: ApplicationFiled: April 12, 2022Publication date: October 13, 2022Applicant: Electronics and Telecommunications Research InstituteInventors: SOON CHOUL KIM, Sung Ik PARK, Jae-young LEE, Hyun-Jeong YIM, Namho HUR, Dong Joon CHOI
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Publication number: 20220312468Abstract: An operation method of a terminal in a communication system may comprise: receiving downlink control information (DCI) for scheduling uplink transmission from a base station; identifying a communication node initiating a channel occupancy time associated with the uplink transmission based on a channel access parameter included in the DCI; and performing the uplink transmission scheduled by the DCI within the channel occupancy time initiated by the communication node, wherein the communication node is the terminal or the base station.Type: ApplicationFiled: March 17, 2022Publication date: September 29, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hoi Yoon JUNG, Sung Ik PARK, Nam Ho HUR, Heung Mook KIM, Dong Joon CHOI
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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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Publication number: 20220174253Abstract: An image receiving method includes receiving, from a plenoptic server, a high-quality image stream of a first viewpoint; requesting, from the plenoptic server, information on a second viewpoint to be shifted when a user's view is shifted, and requesting, from an edge server, a medium-quality image stream of the shifted second viewpoint; receiving, from the edge server, the medium-quality image stream of the second viewpoint and playing the received medium-quality image stream; and receiving information on the second viewpoint and subsequently playing a high-quality image stream of the second viewpoint received from the plenoptic server.Type: ApplicationFiled: November 30, 2021Publication date: June 2, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Choul KIM, Joon Young JUNG, Dong Joon CHOI
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Patent number: 11343062Abstract: Disclosed herein are an apparatus and method for removing a self-interference signal. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives an upstream signal for removing self-interference, generates a downstream signal for channel estimation, replicates a self-interference signal in a time domain and a self-interference signal in a frequency domain using the upstream signal and the downstream signal, and removes the self-interference signal from the upstream signal using the replicated self-interference signal in the time domain and the replicated self-interference signal in the frequency domain.Type: GrantFiled: May 8, 2020Date of Patent: May 24, 2022Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Je-Won Lee, Joon-Young Jung, Dong-Joon Choi
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Patent number: 11343786Abstract: Disclosed herein are a method for broadcast gateway signaling using a cloud network and an apparatus for the same. The method includes generating an outer packet corresponding to the outer layer of a tunneling system using an inner packet corresponding to the inner layer of the tunneling system, generating a header of the outer packet, and transmitting the outer packet to a transmitter through a Studio-to-Transmitter Link (STL). The header includes an STL propagation delay time field indicating a reception wait time for an STL stream corresponding to the outer packet.Type: GrantFiled: February 23, 2021Date of Patent: May 24, 2022Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Choul Kim, Jae-Young Lee, Hye-Ju Oh, Hyun-Jeong Yim, Dong-Joon Choi
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Publication number: 20220132452Abstract: Disclosed herein are a method for broadcast gateway signaling using a cloud network and an apparatus for the same. The method includes generating an outer packet corresponding to the outer layer of a tunneling system using an inner packet corresponding to the inner layer of the tunneling system, generating a header of the outer packet, and transmitting the outer packet to a transmitter through a Studio-to-Transmitter Link (STL). The header includes an STL propagation delay time field indicating a reception wait time for an STL stream corresponding to the outer packet.Type: ApplicationFiled: February 23, 2021Publication date: April 28, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Choul KIM, Jae-Young LEE, Hye-Ju OH, Hyun-Jeong YIM, Dong-Joon CHOI
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Publication number: 20210336837Abstract: Disclosed herein are an apparatus and method for transmitting and receiving a 4-layer layered-division multiplexing (LDM) signal. An apparatus for transmitting a 4-layer layered-division multiplexing signal includes a layered-division multiplexing modulation unit for generating a 3-layer layered-division multiplexing signal by performing layered-division multiplexing modulation on three layer signals and generating a 4-layer layered-division multiplexing signal by inserting a Pseudo-random Noise (PN) sequence into the 3-layer layered-division multiplexing signal, a pilot insertion unit for inserting a pilot into the 4-layer layered-division multiplexing signal, and a transmission unit for transmitting the 4-layer layered-division multiplexing signal.Type: ApplicationFiled: April 1, 2021Publication date: October 28, 2021Inventors: Jae-Hwui Bae, Young-Su Kim, Dong-Joon Choi, Nam-Ho Hur
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Patent number: 11096030Abstract: Disclosed herein is a method of operating an apparatus for providing a cell broadcast service. The operating method includes receiving, by a transmission device of a broadcaster, a cell broadcast service signal containing an emergency alert from a mobile carrier; converting, by the transmission device, the cell broadcast service signal into a public warning broadcast signal; and transmitting, by the transmission device, the public warning broadcast signal to a mobile switching center or a base station.Type: GrantFiled: March 10, 2020Date of Patent: August 17, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Suk-Hee Cho, Byung-Jun Bae, Woong-Soo Na, Na-Yeon Kim, Dong-Joon Choi
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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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Publication number: 20210203471Abstract: Disclosed herein are an apparatus and method for removing a self-interference signal. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives an upstream signal for removing self-interference, generates a downstream signal for channel estimation, replicates a self-interference signal in a time domain and a self-interference signal in a frequency domain using the upstream signal and the downstream signal, and removes the self-interference signal from the upstream signal using the replicated self-interference signal in the time domain and the replicated self-interference signal in the frequency domain.Type: ApplicationFiled: May 8, 2020Publication date: July 1, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Je-Won LEE, Joon-Young JUNG, Dong-Joon CHOI
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Patent number: 11050494Abstract: Disclosed herein are a signal-multiplexing apparatus and method based on machine learning. The signal-multiplexing method based on machine learning, performed by a signal-multiplexing apparatus based on machine learning, including training a transmitted signal using a machine-learning technique, performing complex mapping to transmit the transmitted signal as multiple signals, receiving the multiple signals and regularizing the multiple signals based on a preset rule corresponding to the machine-learning technique, outputting an estimated value for the transmitted signal by training regularized multiple signals using the machine-learning technique, calculating a difference between the transmitted signal and the estimated value for the transmitted signal, and detecting the transmitted signal from an output value when the difference is less than or equal to a preset value.Type: GrantFiled: August 12, 2019Date of Patent: June 29, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Myung-Sun Baek, Joon-Young Jung, Dong-Joon Choi, Heung-Mook Kim