Patents by Inventor Sung Kyu Jung

Sung Kyu Jung 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: 9954917
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20170359147
    Abstract: A channel decoding method is provided. The method includes storing, in a memory, a set of first log likelihood ratio (LLR) values corresponding to bits of a codeword generated by modulation of a channel-encoded signal; changing, into a preset value, at least one LLR value corresponding to previously defined bits of the codeword from among the set of the first LLR values, to generate a set of second LLR values; and performing forward error correction (FEC) based on the set of the second LLR values and an FEC code, to estimate the bits of the codeword, in which the FEC code comprises a constraint code for constricting a previously defined structural correlation between the bits of the codeword.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Inventors: Jung-hyun PARK, Sung-kyu JUNG, Chang-hoon CHOI
  • Publication number: 20170214964
    Abstract: A receiving apparatus is provided. The receiving apparatus includes: a receiver configured to receive an input signal including a transmission frame which includes a bootstrap, a preamble, and a payload; a bootstrap detector configured to detect the bootstrap based on a correlation between the input signal and a reference signal which is pre-stored; and a signal processor configured to signal-process the preamble based on the detected bootstrap and signal-process the payload based on the signal-processed preamble, and the bootstrap detector is configured to determine the correlation by quantizing at least one of the input signal and the reference signal and then multiplexing the input signal and the reference signal at least one of which is quantized. Accordingly, an area occupied by hardware and cost can be reduced and loss of performance can be minimized.
    Type: Application
    Filed: July 22, 2016
    Publication date: July 27, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-ho KIM, Jung-hyun PARK, Sung-kyu JUNG, Doo-chan HWANG
  • Publication number: 20170111198
    Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.
    Type: Application
    Filed: October 19, 2016
    Publication date: April 20, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Jung-pil YU, Sung-kyu JUNG, Changhoon CHOI
  • Publication number: 20170026432
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 26, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Min-ho KIM, Sung-woo PARK, Sung-kyu JUNG, Chang-hoon CHOI, Doo-chan HWANG
  • Publication number: 20160081090
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A terminal and method are provided for data signal transmission in a wireless communication system. The method includes receiving identification information of a band designated for the terminal; receiving a data signal generated based on resource allocation information on the band and an orthogonal frequency division multiple access (OFDMA) scheme; and demodulating and decoding the data signal based on the resource allocation information.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Inventors: Sung-Kyu JUNG, Jong-Ho OH, Hyun-Jeong KANG, Dae-Hyun KIM, Jae-Won KIM, Chang-Hyun BAIK, Sang-Hyun CHANG, Byoung Hoon JUNG, Hyun-Kyu YU
  • Patent number: 8948298
    Abstract: Disclosed is a multiple-input multiple-output (MIMO) system including a transmitting end and a receiving end, wherein the transmitting end includes: a hierarchical codebook in which at least one base codebook is designated as the upper matrix and a child codebook generated based on a chordal distance between respective codewords configuring the base codebook is designated as the lower matrix; a scheduler configured to receive channel state information from the receiving end and select precoding matrices from the hierarchical codebook based on the channel state information; and a precoder configured to apply the precoding matrices selected in the scheduler to data to be transmitted to the receiving end and transmit the selected precoding matrices through a plurality of antennas.
    Type: Grant
    Filed: March 3, 2012
    Date of Patent: February 3, 2015
    Assignee: Seoul National University Industry Foundation
    Inventors: Jung Woo Lee, Kyeong Jun Ko, Sung Kyu Jung
  • Publication number: 20150011104
    Abstract: A connector is providing for reducing near end cross-talk (NEXT). The connector includes a first pin set having sequentially arranged pins configured to transmit a uni-directional signal, a single ended pin adjacent to the first pin set, and a second pin set having sequentially arranged pins adjacent to the single ended pin and having sequentially arranged pins configured to transmit a bi-directional signal.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyeong-jae LEE, Jong-hwa KIM, Sung-kyu JUNG, Ji-eun SHIN, Ju-seok YOON
  • Patent number: 8781015
    Abstract: A method for generating a hybrid codebook for a Multi-User Multiple-input Multiple-Output (MU-MIMO) system includes the steps of: generating a parent matrix set including a plurality of M×M unitary matrices when the number of transmitter antennas is M; and generating a child matrix set dependent on the parent matrix set by using training vectors included in a random training set and each column for each unitary matrix of the parent matrix set as an initial vector codebook.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: July 15, 2014
    Assignee: Seoul National University Industry Foundation
    Inventors: Jung Woo Lee, Kyeong Jun Ko, Sung Kyu Jung
  • Publication number: 20130215987
    Abstract: Disclosed is a multiple-input multiple-output (MIMO) system including a transmitting end and a receiving end, wherein the transmitting end includes: a hierarchical codebook in which at least one base codebook is designated as the upper matrix and a child codebook generated based on a chordal distance between respective codewords configuring the base codebook is designated as the lower matrix; a scheduler configured to receive channel state information from the receiving end and select precoding matrices from the hierarchical codebook based on the channel state information; and a precoder configured to apply the precoding matrices selected in the scheduler to data to be transmitted to the receiving end and transmit the selected precoding matrices through a plurality of antennas.
    Type: Application
    Filed: March 3, 2012
    Publication date: August 22, 2013
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Jung Woo LEE, Kyeong Jun KO, Sung Kyu JUNG
  • Publication number: 20120177097
    Abstract: A method for generating a hybrid codebook for a Multi-User Multiple-input Multiple-Output (MU-MIMO) system includes the steps of: generating a parent matrix set including a plurality of M×M unitary matrices when the number of transmitter antennas is M; and generating a child matrix set dependent on the parent matrix set by using training vectors included in a random training set and each column for each unitary matrix of the parent matrix set as an initial vector codebook.
    Type: Application
    Filed: March 25, 2011
    Publication date: July 12, 2012
    Applicant: Seoul National University Industry Foundation
    Inventors: Jung Woo LEE, Kyeong Jun Ko, Sung Kyu Jung
  • Publication number: 20070172034
    Abstract: There is provided a method of providing a ring-back tone service in a mobile communication system by extending such service to a calling party even when only the calling party has subscribed to the service. The conventional ring-back tone service, however, can be provided only when the called party has subscribed to the service.
    Type: Application
    Filed: May 28, 2004
    Publication date: July 26, 2007
    Inventor: Sung Kyu Jung