Patents by Inventor Dae Kyun Lee
Dae Kyun Lee 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: 11949881Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.Type: GrantFiled: April 1, 2021Date of Patent: April 2, 2024Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong UniversityInventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
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Patent number: 11722270Abstract: A method for encoding a bitstream is described. The method includes receiving, by an error correction unit, the bitstream; performing, by the error correction unit, encoding on the bitstream to generate an encoded bit stream that includes the bitstream and parity bits; processing, by a constellation unit, the encoded bitstream to generate constellation points in one or more encoded streams; determining, by a low-density parity-check (LDPC) tone mapper, a distance between subcarriers in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the frame; and performing, by the LDPC tone mapper, LDPC tone mapping based on the one or more encoded streams and on the determined distance to generate a permuted stream of complex numbers, wherein the distance between subcarriers is determined to be either (1) 18 for a first resource unit size used in the frame and (2) 20 for a second resource unit size used in the frame.Type: GrantFiled: August 4, 2021Date of Patent: August 8, 2023Assignee: Avalon Technology Solutions LLCInventors: Sichan Noh, Yujin Noh, Jong-ee Oh, Min Seoung Kim, Dae Kyun Lee, Youngjae Jung, Hyobin Yim, Jaeyoung Ryu
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Patent number: 11539458Abstract: A method is described for transmitting a frame in a wireless network. The method includes setting, by a wireless device, a first field of the frame according to a first characteristic of the frame; setting, by the wireless device, a second field of the frame according to a second characteristic of the frame; setting, by the wireless device, a puncturing field of the frame in response to the first field of the frame meeting a first criteria and the second field of the frame meeting a second criteria, wherein the puncturing field is associated with puncturing a set of sub-channels of a transmission bandwidth of the frame; and transmitting, by the wireless device, the frame based on the transmission bandwidth and according to the set of sub-channels.Type: GrantFiled: February 5, 2021Date of Patent: December 27, 2022Assignee: NEWRACOM, Inc.Inventors: Yujin Noh, Sichan Noh, Jong-ee Oh, Dae Kyun Lee, Hyobin Yim, Youngjae Jung, Jaeyoung Ryu
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Publication number: 20220407919Abstract: A method is performed by a wireless device. The method comprises receiving a predetermined number N of Orthogonal Frequency Division Multiplexing (OFDM) symbols of a PHY Protocol Data Unit (PPDU), determining, using the Nth received OFDM symbol, whether the PPDU is a PPDU according to a first wireless network standard or a PPDU according to a second wireless network standard, and decoding the PPDU according to the determined wireless network standard. The predetermined number N corresponds to either a location of a Legacy Signal (L-SIG) field in the PPDU or the location of a symbol of a second field of the second wireless network standard in the PPDU, the second field being different from the L-SIG field. The first and second wireless network standards may each be a Vehicle to Everything standard or an Intelligent Transportation System standard, and may be different from each other.Type: ApplicationFiled: August 23, 2022Publication date: December 22, 2022Inventors: Yujin NOH, Seung Hyeok AHN, Yongsuk HWANG, Dae Kyun LEE, Jong-ee OH, Jaeyoung RYU
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Publication number: 20220393813Abstract: A method is described for generating and transmitting a frame by a station. The method includes generating a frame that includes a signaling field and a data field, wherein the signaling field includes a midamble indication that indicates a midamble periodicity used in the data field of the frame and wirelessly transmitting the frame to a recipient.Type: ApplicationFiled: June 21, 2022Publication date: December 8, 2022Applicant: NEWRACOM, Inc.Inventors: Sichan NOH, Yujin NOH, Jong-ee OH, Min Seoung KIM, Dae Kyun LEE, Youngjae JUNG, Hyobin YIM
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Patent number: 11457068Abstract: A method is performed by a wireless device. The method comprises receiving a predetermined number N of Orthogonal Frequency Division Multiplexing (OFDM) symbols of a PHY Protocol Data Unit (PPDU), determining, using the Nth received OFDM symbol, whether the PPDU is a PPDU according to a first wireless network standard or a PPDU according to a second wireless network standard, and decoding the PPDU according to the determined wireless network standard. The predetermined number N corresponds to either a location of a Legacy Signal (L-SIG) field in the PPDU or the location of a symbol of a second field of the second wireless network standard in the PPDU, the second field being different from the L-SIG field. The first and second wireless network standards may each be a Vehicle to Everything standard or an Intelligent Transportation System standard, and may be different from each other.Type: GrantFiled: March 22, 2019Date of Patent: September 27, 2022Assignee: NEWRACOM, INC.Inventors: Yujin Noh, Seung Hyeok Ahn, Yongsuk Hwang, Dae Kyun Lee, Jong-ee Oh, Jaeyoung Ryu
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Patent number: 11398886Abstract: A method is described for generating and transmitting a frame by a station. The method includes determining a bandwidth of a frame to be transmitted by the station; generating a long training field for the frame, wherein the long training field includes a set of pilot tones located at a set of subcarrier positions, wherein when the bandwidth of the frame is 10 MHz, the set of subcarrier positions include four subcarrier positions and the four subcarrier positions are set as {?21-?1,?7-?2,7+?3,21+?4} where ?1, ?2, ?3, and ?4 are odd values, and wherein when the bandwidth of the frame is 20 MHz, the set of subcarrier positions include six sub carrier positions, including {?53-?1,?25-?2,?11-?3, 11+?4,25+?5,53+?6} where ?1, ?2, ?3, ?4, ?5, and ?6 are odd values.Type: GrantFiled: July 10, 2020Date of Patent: July 26, 2022Assignee: NEWRACOM, Inc.Inventors: Sichan Noh, Yujin Noh, Jong-ee Oh, Min Seoung Kim, Dae Kyun Lee, Youngjae Jung, Hyobin Yim
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Patent number: 11394492Abstract: A method for encoding a bitstream for a frame in a wireless transmission is described. The method includes receiving, by an error correction unit of the wireless device, the bitstream; performing, by the error correction unit, forward error correction on the bitstream to generate an error corrected bitstream; determining, by a dual sub-carrier modulation (DCM) mapper of the first wireless device, a number of data subcarriers for modulating the error corrected bitstream to subcarriers in each half of an orthogonal frequency-division multiplexing (OFDM) symbol, wherein the number of data subcarriers is determined to be (1) 26 for a first bandwidth of the frame, (2) 54 for a second bandwidth and performing, by the DCM mapper, DCM on the error corrected bitstream based on the determined number of data subcarriers to generate a stream of complex numbers corresponding to the number of data subcarriers.Type: GrantFiled: April 2, 2020Date of Patent: July 19, 2022Assignee: NEWRACOM, Inc.Inventors: Yujin Noh, Jaeyoung Ryu, Dae Kyun Lee, Jong-ee Oh, Minseoung Kim
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Publication number: 20210367722Abstract: A method for encoding a bitstream is described. The method includes receiving, by an error correction unit, the bitstream; performing, by the error correction unit, encoding on the bitstream to generate an encoded bit stream that includes the bitstream and parity bits; processing, by a constellation unit, the encoded bitstream to generate constellation points in one or more encoded streams; determining, by a low-density parity-check (LDPC) tone mapper, a distance between subcarriers in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the frame; and performing, by the LDPC tone mapper, LDPC tone mapping based on the one or more encoded streams and on the determined distance to generate a permuted stream of complex numbers, wherein the distance between subcarriers is determined to be either (1) 18 for a first resource unit size used in the frame and (2) 20 for a second resource unit size used in the frame.Type: ApplicationFiled: August 4, 2021Publication date: November 25, 2021Applicant: NEWRACOM, Inc.Inventors: Sichan NOH, Yujin NOH, Jong-ee OH, Min Seoung KIM, Dae Kyun LEE, Youngjae JUNG, Hyobin YIM, Jaeyoung RYU
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Patent number: 11128409Abstract: A method includes determining, by a Media Access Control (MAC) layer of a first wireless station, a total length of user data in a first Physical Layer (PHY) Protocol Data Unit (PPDU); determining, by the MAC layer, a Hybrid Automatic Repeat Request (HARQ) block size; adding a first indication to a transmission vector, wherein the first indication indicates the total length of user data in the first PPDU; adding a second indication to the transmission vector, wherein the second indication indicates the HARQ block size; passing the transmission vector to a PHY layer of the first wireless station; generating, by the PHY layer, the first PPDU based on the first indication and the second indication, wherein the first PPDU includes a first set of HARQ blocks that each have a size equal to the HARQ block size; and transmitting the first PPDU to a second wireless station.Type: GrantFiled: August 12, 2020Date of Patent: September 21, 2021Assignee: NEWRACOM, INC.Inventors: Sichan Noh, Yujin Noh, Jong-ee Oh, Min Seoung Kim, Dae Kyun Lee, Youngjae Jung, Hyobin Yim
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Patent number: 11122564Abstract: A process for receiving a Physical Layer Protocol Data Unit (PPDU) may include receiving a first portion of the PPDU. The first portion including a Legacy Signal (L-SIG) field and a second signal field that is received after the reception of the L-SIG field. The process further includes decoding, using first information in the L-SIG field, the second signal field, and determining, using second information included in the second signal field, that the PPDU includes midambles. In response to determining that the PPDU includes midambles, the process determines, using a midamble periodicity M, a number of midambles NMA in the PPDU, determines, using the number of midambles, a number of data symbols in a data field of the PPDU, and processes, using the number of midambles and the number of data symbols, the data field of the PPDU. The process may be performed by a wireless device.Type: GrantFiled: March 22, 2019Date of Patent: September 14, 2021Assignee: Newracom, Inc.Inventors: Yujin Noh, Seung Hyeok Ahn, Yongsuk Hwang, Dae Kyun Lee, Jong-ee Oh, Jaeyoung Ryu
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Patent number: 11115163Abstract: A method for encoding a bitstream is described. The method includes receiving, by an error correction unit, the bitstream; performing, by the error correction unit, encoding on the bitstream to generate an encoded bit stream that includes the bitstream and parity bits; processing, by a constellation unit, the encoded bitstream to generate constellation points in one or more encoded streams; determining, by a low-density parity-check (LDPC) tone mapper, a distance between subcarriers in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the frame; and performing, by the LDPC tone mapper, LDPC tone mapping based on the one or more encoded streams and on the determined distance to generate a permuted stream of complex numbers, wherein the distance between subcarriers is determined to be either (1) 18 for a first resource unit size used in the frame and (2) 20 for a second resource unit size used in the frame.Type: GrantFiled: August 8, 2020Date of Patent: September 7, 2021Assignee: NEWRACOM INC.Inventors: Sichan Noh, Yujin Noh, Jong-ee Oh, Min Seoung Kim, Dae Kyun Lee, Youngjae Jung, Hyobin Yim, Jaeyoung Ryu
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Patent number: 11098435Abstract: A washing machine of the present disclosure includes a cabinet having a first opening and a washing space disposed therein and a door assembly configured to open and close the first opening, wherein the door assembly includes a second opening configured to communicate with an inside of the cabinet and an auxiliary door disposed to be slidable and configured to open and close the second opening. In this way, laundry or detergent can be freely inserted even during a washing process.Type: GrantFiled: November 29, 2016Date of Patent: August 24, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Young Kim, Doo Young Rou, Dae Kyun Lee, Hee-Won Jin
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Publication number: 20210250119Abstract: A method is described for transmitting a frame in a wireless network. The method includes setting, by a wireless device, a first field of the frame according to a first characteristic of the frame; setting, by the wireless device, a second field of the frame according to a second characteristic of the frame; setting, by the wireless device, a puncturing field of the frame in response to the first field of the frame meeting a first criteria and the second field of the frame meeting a second criteria, wherein the puncturing field is associated with puncturing a set of sub-channels of a transmission bandwidth of the frame; and transmitting, by the wireless device, the frame based on the transmission bandwidth and according to the set of sub-channels.Type: ApplicationFiled: February 5, 2021Publication date: August 12, 2021Applicant: NEWRACOM, Inc.Inventors: Yujin NOH, Sichan NOH, Jong-ee OH, Dae Kyun LEE, Hyobin YIM, Youngjae JUNG, Jaeyoung RYU
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Publication number: 20210050952Abstract: A method includes determining, by a Media Access Control (MAC) layer of a first wireless station, a total length of user data in a first Physical Layer (PHY) Protocol Data Unit (PPDU); determining, by the MAC layer, a Hybrid Automatic Repeat Request (HARQ) block size; adding a first indication to a transmission vector, wherein the first indication indicates the total length of user data in the first PPDU; adding a second indication to the transmission vector, wherein the second indication indicates the HARQ block size; passing the transmission vector to a PHY layer of the first wireless station; generating, by the PHY layer, the first PPDU based on the first indication and the second indication, wherein the first PPDU includes a first set of HARQ blocks that each have a size equal to the HARQ block size; and transmitting the first PPDU to a second wireless station.Type: ApplicationFiled: August 12, 2020Publication date: February 18, 2021Applicant: NEWRACOM, Inc.Inventors: Sichan NOH, Yujin NOH, Jong-ee OH, Min Seoung KIM, Dae Kyun LEE, Youngjae JUNG, Hyobin YIM
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Publication number: 20210044398Abstract: A method for encoding a bitstream is described. The method includes receiving, by an error correction unit, the bitstream; performing, by the error correction unit, encoding on the bitstream to generate an encoded bit stream that includes the bitstream and parity bits; processing, by a constellation unit, the encoded bitstream to generate constellation points in one or more encoded streams; determining, by a low-density parity-check (LDPC) tone mapper, a distance between subcarriers in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the frame; and performing, by the LDPC tone mapper, LDPC tone mapping based on the one or more encoded streams and on the determined distance to generate a permuted stream of complex numbers, wherein the distance between subcarriers is determined to be either (1) 18 for a first resource unit size used in the frame and (2) 20 for a second resource unit size used in the frame.Type: ApplicationFiled: August 8, 2020Publication date: February 11, 2021Applicant: NEWRACOM, Inc.Inventors: Sichan NOH, Yujin NOH, Jong-ee OH, Min Seoung KIM, Dae Kyun LEE, Youngjae JUNG, Hyobin YIM, Jaeyoung RYU
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Publication number: 20210014018Abstract: A method is described for generating and transmitting a frame by a station. The method includes determining a bandwidth of a frame to be transmitted by the station; generating a long training field for the frame, wherein the long training field includes a set of pilot tones located at a set of subcarrier positions, wherein when the bandwidth of the frame is 10 MHz, the set of subcarrier positions include four subcarrier positions and the four subcarrier positions are set as {?21-?1,?7-?2,7+?3,21+?4} where ?1, ?2, ?3, and ?4 are odd values, and wherein when the bandwidth of the frame is 20 MHz, the set of subcarrier positions include six sub carrier positions, including {?53-?1,?25-?2,?11-?3, 11+?4,25+?5,53+?6} where ?1, ?2, ?3, ?4, ?5, and ?6 are odd values.Type: ApplicationFiled: July 10, 2020Publication date: January 14, 2021Applicant: NEWRACOM, Inc.Inventors: Sichan NOH, Yujin NOH, Jong-ee OH, Min Seoung KIM, Dae Kyun LEE, Youngjae JUNG, Hyobin YIM
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Publication number: 20200322091Abstract: A method for encoding a bitstream for a frame in a wireless transmission is described. The method includes receiving, by an error correction unit of the wireless device, the bitstream; performing, by the error correction unit, forward error correction on the bitstream to generate an error corrected bitstream; determining, by a dual sub-carrier modulation (DCM) mapper of the first wireless device, a number of data subcarriers for modulating the error corrected bitstream to subcarriers in each half of an orthogonal frequency-division multiplexing (OFDM) symbol, wherein the number of data subcarriers is determined to be (1) 26 for a first bandwidth of the frame, (2) 54 for a second bandwidth and performing, by the DCM mapper, DCM on the error corrected bitstream based on the determined number of data subcarriers to generate a stream of complex numbers corresponding to the number of data subcarriers.Type: ApplicationFiled: April 2, 2020Publication date: October 8, 2020Applicant: NEWRACOM, Inc.Inventors: Yujin NOH, Jaeyoung RYU, Dae Kyun LEE, Jong-ee OH, Minseoung KIM
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Patent number: D871690Type: GrantFiled: May 21, 2019Date of Patent: December 31, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Kyun Lee, Hwa-Yong Shin
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Patent number: D874752Type: GrantFiled: April 23, 2019Date of Patent: February 4, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-Kyun Lee, Hwa-Yong Shin