Patents by Inventor Chul Roh
Chul Roh 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: 20240181380Abstract: A scrubber system may include a scrubber housing including a vertically extended cleaning space, an inflow chamber coupled to a bottom portion of the scrubber housing, and first and second inflow portions, each of which is configured to supply a gas into the inflow chamber. The inflow chamber may include a mixing space, and the mixing space may be connected to the cleaning space. The first inflow portion may include a first connection pipe coupled to the inflow chamber to provide a first connection path and the second inflow portion may include a second connection pipe coupled to the inflow chamber to provide a second connection path. The first and second connection paths may be extended toward the mixing space in opposite directions, respectively, and may be connected to opposite portions of the mixing space, respectively.Type: ApplicationFiled: February 15, 2024Publication date: June 6, 2024Applicants: Samsung Electronics Co., Ltd., Global Standard Technology Co.,LTDInventors: Young Seok ROH, Suji GIM, Heesub KIM, Hee Ock PARK, Jongyong BAE, Sung Chul YOON, Sunsoo LEE, Dong Keun JEON, Jinkyoung JOO
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Patent number: 12004164Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.Type: GrantFiled: March 6, 2023Date of Patent: June 4, 2024Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour
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Patent number: 11994582Abstract: An apparatus includes an inverse radar sensor model processor and a grid mapping processor. The inverse radar sensor model processor receives radar sensor data for a time k from a radar sensor, generates object data based on the radar sensor data, and calculates instantaneous masses at the time k for each cell in a field of view (FOV) of the radar sensor based on the object data and a sensor characteristic. The inverse radar sensor model processor outputs the calculated instantaneous masses to the grid mapping processor, which also receives accumulated masses for each cell in the FOV for a time period 0:k?1. An accumulated mass represents a combination of instantaneous masses for the cell at each time increment in the time period 0:k?1. The grid mapping processor generates updated accumulated masses for a time period 0:k.Type: GrantFiled: September 13, 2021Date of Patent: May 28, 2024Assignee: Texas Instruments IncorporatedInventors: Gunawath Dilshan Godaliyadda, June Chul Roh
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Patent number: 11986324Abstract: Disclosed herein is a frailty diagnosis apparatus. The frailty diagnosis apparatus includes a physical performance meter and a processor for determining a frailty index of a target person based on physical performance of the target person obtained by the physical performance meter. The physical performance meter includes at least one among a gait speed meter for measuring a gait speed of the target person, a body balance meter for measuring a body balance maintenance time of the target person, and a muscle strength meter for measuring a muscle exercise time.Type: GrantFiled: March 29, 2019Date of Patent: May 21, 2024Assignee: DYPHI Inc.Inventor: Hyun Chul Roh
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Patent number: 11980054Abstract: A display apparatus including a heteromorphy lens disposed on a path of light emitted from a light-emitting device, a side surface of the heteromorphy lens toward a first direction has a shape different from a side surface of the heteromorphy lens toward a second direction perpendicular to the first direction, so that light can be condensed in the first direction and diffused in the second direction due to the heteromorphy lens, and the reduction in luminance can be minimized, and the viewing angle can be limited.Type: GrantFiled: April 19, 2021Date of Patent: May 7, 2024Assignee: LG DISPLAY CO., LTD.Inventors: Woo Chul Choi, Seung Kwang Roh
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Patent number: 11955081Abstract: A pixel includes: a storage capacitor connected between a first power supply voltage and a gate node; a first transistor including a gate electrode connected to the gate node; a second transistor to transfer a data signal to a source of the first transistor in response to a scan signal; a third transistor to diode-connect the first transistor in response to the scan signal, and including first and second sub-transistors serially connected between the gate node and a drain of the first transistor; a fourth transistor to transfer an initialization voltage to the gate node in response to an initialization signal, and including third and fourth sub-transistors serially connected between the gate node and the initialization voltage; and an organic light emitting diode including a cathode connected to a second power supply voltage. At least one of the second and fourth sub-transistors includes a bottom electrode.Type: GrantFiled: August 8, 2020Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyo Jin Lee, Joon-Chul Goh, Sangan Kwon, Hong Soo Kim, Hui Nam, Jin Young Roh, Sehyuk Park
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Publication number: 20240113804Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M—outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.Type: ApplicationFiled: December 4, 2023Publication date: April 4, 2024Inventors: June Chul Roh, Pierre Bertrand
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Patent number: 11931683Abstract: A scrubber system may include a scrubber housing including a vertically extended cleaning space, an inflow chamber coupled to a bottom portion of the scrubber housing, and first and second inflow portions, each of which is configured to supply a gas into the inflow chamber. The inflow chamber may include a mixing space, and the mixing space may be connected to the cleaning space. The first inflow portion may include a first connection pipe coupled to the inflow chamber to provide a first connection path and the second inflow portion may include a second connection pipe coupled to the inflow chamber to provide a second connection path. The first and second connection paths may be extended toward the mixing space in opposite directions, respectively, and may be connected to opposite portions of the mixing space, respectively.Type: GrantFiled: October 15, 2021Date of Patent: March 19, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Young Seok Roh, Suji Gim, Heesub Kim, Hee Ock Park, Jongyong Bae, Sung Chul Yoon, Sunsoo Lee, Dong Keun Jeon, Jinkyoung Joo
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Patent number: 11912895Abstract: The present invention relates to a fire resistant paint composition, to a production method for same and to a painting method for a fire resistant paint using same, and, one example of implementation of the present invention can provide a fire resistant paint composition comprising: between 70 and 95 wt. % of a binder; between 1 and 10 wt. % of an aerogel; between 1 and 5 wt. % of a foaming agent; and the remainder of water, and can provide a production method for same and a painting method for a fire resistant paint using same.Type: GrantFiled: August 8, 2017Date of Patent: February 27, 2024Assignee: AEROGEL R&D PTE. LTD.Inventors: Myung Je Roh, Young Chul Joung, Jong Chul Park, Min Woo Kim, Choon Soo Hahn, Dong Ho Jung, Do Young Park
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Publication number: 20240064747Abstract: A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.Type: ApplicationFiled: October 16, 2023Publication date: February 22, 2024Inventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour
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Patent number: 11874395Abstract: Systems and methods are provided for a radar processing chain for frequency-modulated continuous wave radar systems. A transmitter transmits a plurality of chirps, each comprising an electromagnetic radiation signal, at a region of interest. A receiver front-end receives reflected electromagnetic radiation for each chirp and generates a time series of beat-signal samples for each chirp at each antenna of a plurality of antennas. A signal processor detects objects within the region of interest by providing a frequency domain representation of each time series of beat-signal samples as sample values for a set of range bins representing respective distances from the receiver, correcting the sample values for each of the set of range bins to provide a set of clutter corrected samples for each range bin, and determining an angular spectrum for each of a subset of the set of range bins from the clutter corrected samples.Type: GrantFiled: September 14, 2021Date of Patent: January 16, 2024Assignee: Texas Instruments IncorporatedInventor: June Chul Roh
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Patent number: 11850027Abstract: A mm-wave system includes transmission of a millimeter wave (mm-wave) signal by a plurality of transmitters to multiple objects, and receiving of return—mm-wave signals from the multiple objects by a plurality of receivers. A processor is configured to perform an algorithm to derive complex-valued samples and angle measurements from each receiver to identify one object from another object. The processor further extracts signal waveforms that correspond to each object and process the extracted signal waveforms to estimate breathing rate and heart rate of the identified object.Type: GrantFiled: August 8, 2022Date of Patent: December 26, 2023Assignee: Texas Instruments IncorporatedInventors: Dan Wang, June Chul Roh, Adeel Ahmad
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Patent number: 11838122Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M—outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.Type: GrantFiled: January 24, 2022Date of Patent: December 5, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: June Chul Roh, Pierre Bertrand
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Patent number: 11812437Abstract: A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.Type: GrantFiled: September 2, 2022Date of Patent: November 7, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour
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Publication number: 20230284226Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.Type: ApplicationFiled: March 6, 2023Publication date: September 7, 2023Inventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour
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Publication number: 20230178733Abstract: Disclosed is a silicon-carbon composite negative-electrode active material for a lithium secondary battery having improved electrochemical properties which contains a carbon material derived from a wood-based material and a compound containing an isocyanate functional group in order to improve unstable dispersibility of silicon-based particles used as a negative-electrode active material for a lithium secondary battery, thereby improving electrical conductivity and producing stable electrode slurry. Further, a method for producing the same, and a lithium secondary battery including the same are disclosed.Type: ApplicationFiled: December 23, 2021Publication date: June 8, 2023Inventors: Kwang-Chul ROH, Ji-Su CHAE, Dae-Soo JUNG, Jung-Hyun CHOI
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Publication number: 20230089552Abstract: An apparatus includes an inverse radar sensor model processor and a grid mapping processor. The inverse radar sensor model processor receives radar sensor data for a time k from a radar sensor, generates object data based on the radar sensor data, and calculates instantaneous masses at the time k for each cell in a field of view (FOV) of the radar sensor based on the object data and a sensor characteristic. The inverse radar sensor model processor outputs the calculated instantaneous masses to the grid mapping processor, which also receives accumulated masses for each cell in the FOV for a time period 0:k - 1. An accumulated mass represents a combination of instantaneous masses for the cell at each time increment in the time period 0:k - 1. The grid mapping processor generates updated accumulated masses for a time period 0:k.Type: ApplicationFiled: September 13, 2021Publication date: March 23, 2023Inventors: Gunawath Dilshan GODALIYADDA, June Chul ROH
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Patent number: 11601924Abstract: A method for communicating over a wireless backhaul channel comprising generating a radio frame comprising a plurality of time slots, wherein each time slot comprises a plurality of symbols in time and a plurality of sub-carriers in a system bandwidth, broadcasting a broadcast channel signal comprising a transmission schedule to a plurality of remote units in a number of consecutive sub-carriers centered about a direct current (DC) sub-carrier in at least one of the time slots in the radio frame regardless of the system bandwidth, and transmitting a downlink (DL) control channel signal and a DL data channel signal to a first of the remote units, wherein the DL data channel signal is transmitted by employing a single carrier block transmission scheme comprising a Discrete Fourier Transform (DFT) spreading for frequency diversity.Type: GrantFiled: December 28, 2020Date of Patent: March 7, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour
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Publication number: 20230031995Abstract: Provided is a method of predicting a cardiopulmonary function comprising measuring motion of a cardiopulmonary function measurement-target person, by a motion sensor, determining a gait speed of the cardiopulmonary function measurement-target person according to the motion of the cardiopulmonary function measurement-target person, by a processor, and predicting a cardiopulmonary function index of the cardiopulmonary function measurement-target person, based on the gait speed of the cardiopulmonary function measurement-target person, by the processor.Type: ApplicationFiled: October 20, 2020Publication date: February 2, 2023Inventors: Seong Jun Yoon, Hyun Chul Roh, Hee Won Jung
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Publication number: 20230011884Abstract: A method for uplink (UL) wireless backhaul communication at a wireless backhaul remote unit in a radio access network comprising receiving a configuration for radio frames and a transmission schedule through a downlink (DL) physical layer broadcast channel, wherein the transmission schedule comprises a transmission allocation for the remote unit, generating a UL data frame, wherein generating the UL data frame comprises performing forward error correction (FEC) encoding on a data bit stream to generate a plurality of FEC codewords, wherein performing the FEC encoding comprises performing Reed Solomon (RS) encoding on the data bit stream to generate a plurality of RS codewords, performing byte interleaving on the RS codewords, and performing Turbo encoding on the byte interleaved RS codewords to generate one or more Turbo codewords, wherein each Turbo codeword is encoded from more than one RS codeword, and transmitting the UL data frame according to the transmission allocation.Type: ApplicationFiled: September 2, 2022Publication date: January 12, 2023Inventors: June Chul Roh, Pierre Bertrand, Srinath Hosur, Vijay Pothukuchi, Mohamed Farouk Mansour