Patents by Inventor Hyun-Seok Yu

Hyun-Seok Yu 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).

  • Patent number: 11926529
    Abstract: Provided is an aerogel blanket and a method for producing the same, wherein a catalyzed sol I sufficiently and uniformly impregnated into a blanket in an impregnation tank, and the catalyzed sol is allowed to stay in the impregnation tank for a specific time to control fluidity while achieving a viscosity at which the catalyzed sol can be easily introduced into the blanket, thereby forming a uniform aerogel in the blanket. As a result, the uniformity of pore structure and thermal insulation performance of an aerogel blanket are improved, the loss of raw materials is reduced through the impregnation process, the occurrence of process problems is reduced, and the generation of dust is reduced.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: March 12, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Young Hun Kim, Se Won Baek, Sung Min Yu, Kyung Seok Min, Hyun Woo Jeon, Sang Woo Park, Bong June Kim
  • Patent number: 11605904
    Abstract: Provided is an antenna module including: a phased array having a plurality of antennas and configured to communicate a first RF signal and a second RF signal, which are polarized in different directions; a front-end radio frequency integrated circuit (RFIC) including a first RF circuit configured to process or generate the first RF signal and a second RF circuit configured to process or generate the second RF signal; and a switch circuit configured to connect each of the first RF circuit and the second RF circuit to a first port or a second port of the antenna module according to a control signal. The first and second ports are each connectable to a back end RFIC that processes or generates a baseband signal.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-seok Yu, Sang-won Son, Siu-chuang Ivan Lu
  • Publication number: 20220407551
    Abstract: A data transmission device and a data transmission method are provided. The data transmission device includes: a plurality of front-end modules associated with a plurality of antennas, respectively; and a controller configured to select a front-end module to be used for data communication from among the plurality of front-end modules, wherein the controller is configured to: determine a temperature of each of the plurality of front-end modules; and select, from among the plurality of front-end modules, a front-end module having a temperature lower than or equal to a threshold temperature and corresponding to a maximum received power of a receiving device, among received powers of the receiving device corresponding to the plurality of front-end modules, and wherein each of the received powers of the receiving device is obtained based on a specific absorption rate (SAR) requirement or a maximum permissible exposure (MPE) requirement of a corresponding front-end module.
    Type: Application
    Filed: March 16, 2022
    Publication date: December 22, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Seok YU, Hae-Dong YEON, Gang Minh LEE
  • Patent number: 11405919
    Abstract: A wireless communication method using a plurality of antennas performed by a controller, the wireless communication method including obtaining a target transmission power level and beam forming information, determining at least one inactive antenna from among the plurality of antennas, based on the target transmission power level and the beam forming information, and controlling transmission signals provided to the plurality of antennas such that transmission via the at least one inactive antenna does not occur.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 2, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Lee, Sang Won Son, Hyun-seok Yu, Young-seok Jung, Hui-won Je
  • Publication number: 20210021052
    Abstract: Provided is an antenna module including: a phased array having a plurality of antennas and configured to communicate a first RF signal and a second RF signal, which are polarized in different directions; a front-end radio frequency integrated circuit (RFIC) including a first RF circuit configured to process or generate the first RF signal and a second RF circuit configured to process or generate the second RF signal; and a switch circuit configured to connect each of the first RF circuit and the second RF circuit to a first port or a second port of the antenna module according to a control signal. The first and second ports are each connectable to a back end RFIC that processes or generates a baseband signal.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 21, 2021
    Inventors: HYUN-SEOK YU, Sang-won Son, Siu-chuang Ivan Lu
  • Patent number: 10826197
    Abstract: Provided is an antenna module including: a phased array having a plurality of antennas and configured to communicate a first RF signal and a second RF signal, which are polarized in different directions; a front-end radio frequency integrated circuit (RFIC) including a first RF circuit configured to process or generate the first RF signal and a second RF circuit configured to process or generate the second signal; and a switch circuit configured to connect each of the first RF circuit and the second RE circuit to a first port or a second port of the antenna module according to a control signal. The first and second ports are each connectable to a back end RFIC that processes or generates a baseband signal.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-seok Yu, Sang-won Son, Siu-chuang Ivan Lu
  • Publication number: 20190363453
    Abstract: Provided is an antenna module including: a phased array having a plurality of antennas and configured to communicate a first RF signal and a second RF signal, which are polarized in different directions; a front-end radio frequency integrated circuit (RFIC) including a first RF circuit configured to process or generate the first RF signal and a second RF circuit configured to process or generate the second signal; and a switch circuit configured to connect each of the first RF circuit and the second RE circuit to a first port or a second port of the antenna module according to a control signal.
    Type: Application
    Filed: May 13, 2019
    Publication date: November 28, 2019
    Inventors: Hyun-seok Yu, Sang-won Son, Siu-chuang Ivan Lu
  • Patent number: 10218451
    Abstract: A communication device and method operating in a wireless communication system is provided. The communication device includes a memory configured to store frequency history information; and a processor electrically connected to the memory, wherein the processor is configured to measure reception power of each of a plurality of first signals included in a first band, determine a first candidate frequency set according to a strength of each measured reception power, determine a second candidate frequency set updated from the first candidate frequency set based on the frequency history information, and determine whether a cell corresponding to each frequency included in the second candidate frequency set exists.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Do-Yun Kim, Hyun-Seok Yu, Won-Seok Park, Jeong-Gyun Yu, Chae-Hag Yi
  • Publication number: 20190037574
    Abstract: A wireless communication method using a plurality of antennas performed by a controller, the wireless communication method including obtaining a target transmission power level and beam forming information, determining at least one inactive antenna from among the plurality of antennas, based on the target transmission power level and the beam forming information, and controlling transmission signals provided to the plurality of antennas such that transmission via the at least one inactive antenna does not occur.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 31, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Lee, Sang Won Son, Hyun-seok Yu, Young-seok Jung, Hui-won Je
  • Patent number: 9768916
    Abstract: A method for detecting a signal by a signal receiving apparatus is provided. The method includes detecting a part of block diagonal matrices included in a diagonal matrix based on at least one channel impulse response (CIR) for a received signal, detecting remaining block diagonal matrices excluding the part of block diagonal matrices from among block diagonal matrices included in the diagonal matrix, estimating modulation symbols from the received signal based on the diagonal matrix, generating a block diagonal matrix by multiplying one of second matrices included in a first matrix, which is generated by applying a circular extension scheme to a fourth matrix including third matrices, by a fast Fourier transform (FFT) matrix, generating a third matrix for one of the estimated modulation symbols, the third matrix includes vectors for channelization codes, and generating a vector based on the channelization codes or the at least one CIR.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Hyun-Seok Yu
  • Patent number: 9705583
    Abstract: A communication device and a method of controlling the same. The communication device includes at least one receiver configured to connect to a first antenna for receiving a first signal and a second antenna for receiving a second signal; and a processor electrically coupled to the at least one receiver, wherein the processor is configured to measure received signal strengths of the first signal and the second signal based on calibration operation for the first antenna and the second antenna, select one of the first antenna and the second antenna based on the measured received signal strengths, and control the at least one receiver to receive a signal through the selected one of the first antenna and the second antenna.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 11, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Seok Yu, Do-Yun Kim, Beom-Kon Kim, Hwan-Min Park, Chae-Hag Yi
  • Publication number: 20170099116
    Abstract: A communication device and method operating in a wireless communication system is provided. The communication device includes a memory configured to store frequency history information; and a processor electrically connected to the memory, wherein the processor is configured to measure reception power of each of a plurality of first signals included in a first band, determine a first candidate frequency set according to a strength of each measured reception power, determine a second candidate frequency set updated from the first candidate frequency set based on the frequency history information, and determine whether a cell corresponding to each frequency included in the second candidate frequency set exists.
    Type: Application
    Filed: April 8, 2016
    Publication date: April 6, 2017
    Inventors: Do-Yun KIM, Hyun-Seok YU, Won-Seok PARK, Jeong-Gyun YU, Chae-Hag YI
  • Publication number: 20170085310
    Abstract: A communication device and a method of controlling the same. The communication device includes at least one receiver configured to connect to a first antenna for receiving a first signal and a second antenna for receiving a second signal; and a processor electrically coupled to the at least one receiver, wherein the processor is configured to measure received signal strengths of the first signal and the second signal based on calibration operation for the first antenna and the second antenna, select one of the first antenna and the second antenna based on the measured received signal strengths, and control the at least one receiver to receive a signal through the selected one of the first antenna and the second antenna.
    Type: Application
    Filed: April 15, 2016
    Publication date: March 23, 2017
    Inventors: Hyun-Seok YU, Do-Yun KIM, Beom-Kon KIM, Hwan-Min PARK, Chae-Hag YI
  • Publication number: 20160080054
    Abstract: A method for detecting a signal by a signal receiving apparatus is provided. The method includes detecting a part of block diagonal matrices included in a diagonal matrix based on at least one channel impulse response (CIR) for a received signal, detecting remaining block diagonal matrices excluding the part of block diagonal matrices from among block diagonal matrices included in the diagonal matrix, estimating modulation symbols from the received signal based on the diagonal matrix, generating a block diagonal matrix by multiplying one of second matrices included in a first matrix, which is generated by applying a circular extension scheme to a fourth matrix including third matrices, by a fast Fourier transform (FFT) matrix, generating a third matrix for one of the estimated modulation symbols, the third matrix includes vectors for channelization codes, and generating a vector based on the channelization codes or the at least one CIR.
    Type: Application
    Filed: June 25, 2015
    Publication date: March 17, 2016
    Inventor: Hyun-Seok YU
  • Publication number: 20140029454
    Abstract: A method for transmitting a Channel Quality Indicator (CQI) by a CQI transmission apparatus in a communication system is provided. The method includes generating a CQI based on a CQI metric generated using a CQI_offset compensation value, and transmitting the CQI to a CQI reception apparatus, wherein the CQI_offset compensation value is generated using a CQI_offset and wherein a CQI_offset control value, and the CQI_offset is generated using Acknowledgement (Ack)/Non-Acknowledgement (Nack) information for a transmitted transport block.
    Type: Application
    Filed: March 13, 2013
    Publication date: January 30, 2014
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hyun-Seok YU, Seong-Wook SONG, Kyung-Ha LEE
  • Patent number: 8355684
    Abstract: A channel determination apparatus and method for a broadcast receiver are provided. The method includes estimating, when the broadcast receiver operates in a sleep state over a preset time period, inter-modulation distortion interference of a plurality of channels by scanning the channels, and receiving, when the sleep state is transitioned to an active state, broadcast data on a channel having the least inter-modulation distortion interference. Accordingly, the inter-modulation distortion interference of individual channels is taken into account to select an optimum channel, thereby resulting in improvement of channel determination accuracy.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: January 15, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Seok Yu, In Kwon Paik, Byung Tae Kang
  • Patent number: 8131231
    Abstract: A method and apparatus for canceling interference during reception of a broadcast signal in a hybrid terminal including a broadcast receiver and a mobile communication terminal. In the interference cancellation apparatus, a gain controller adjusts transmission power of the mobile communication terminal, and a transmission power controller determines whether there is a burst of a broadcast signal that the broadcast receiver will receive. If there is a burst of the broadcast signal, the transmission power controller controls the gain controller to decrease transmission power of a mobile communication signal transmitted by the mobile communication terminal at a corresponding slot.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Seok Yu, Hyun-Seok Oh, Hung-Su Park
  • Publication number: 20110003570
    Abstract: A channel determination apparatus and method for a broadcast receiver are provided. The method includes estimating, when the broadcast receiver operates in a sleep state over a preset time period, inter-modulation distortion interference of a plurality of channels by scanning the channels, and receiving, when the sleep state is transitioned to an active state, broadcast data on a channel having the least inter-modulation distortion interference. Accordingly, the inter-modulation distortion interference of individual channels is taken into account to select an optimum channel, thereby resulting in improvement of channel determination accuracy.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hyun Seok YU, In Kwon PAIK, Byung Tae KANG
  • Patent number: 7813330
    Abstract: A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: October 12, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun-Seok Yu, Hyun-Seok Oh, Ji-Won Ha, Min-Goo Kim
  • Publication number: 20100037278
    Abstract: An apparatus and method for transmitting and receiving broadcasting information transmission in a Digital Video Broadcasting (DVB) system are provided. The method for transmitting broadcasting information includes dividing a Program Specific Information (PSI) and/or Service Information (SI) table received from an upper layer into a plurality of sections, generating section numbers with respect to the sections, channel-coding and interleaving the sections, generating a Transport Stream (TS) packet including at least one section, section information and channel coding information, and multiplexing the TS packet together with a data TS packet.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 11, 2010
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hyun-Seok YU, Seok-Min HWANG, Min-Goo KIM, Hyun-Seok OH