Patents by Inventor Sun Hyoung KWON

Sun Hyoung KWON 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: 12155455
    Abstract: Disclosed herein are a broadcast node and a method for dynamically managing radio resources and heterogeneous network connectivity. The broadcast node is installed for a transmitter of an intelligent broadcast/broadband network, wherein the broadcast node is configured to generate an attribute message including an associated identification parameter for connection to a broadcast core network, and initiate a series of communication protocols for connection with additional intelligent entities, and manage a service request queue, a radio resource, an interface, and one or more services.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: November 26, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun-Hyoung Kwon, Sung-Ik Park, Nam-Ho Hur, Rufino Reydel Cabrera, Eneko Iradier, Jon Montalban, Pablo Angueira
  • Publication number: 20240323072
    Abstract: An apparatus and method for broadcast signal frame using a bootstrap and a preamble are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a time interleaver configured to generate a time-interleaved signal by performing interleaving on a BICM output signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.
    Type: Application
    Filed: June 4, 2024
    Publication date: September 26, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik PARK, Jae-Young LEE, Sun-Hyoung KWON, Heung-Mook KIM
  • Publication number: 20240322842
    Abstract: A parity interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.
    Type: Application
    Filed: June 6, 2024
    Publication date: September 26, 2024
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik PARK, Sun-Hyoung KWON, Jae-Young LEE, Heung-Mook KIM
  • Patent number: 12095477
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 4/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: September 17, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 12095475
    Abstract: A zero padding apparatus and method for fixed length signaling information are disclosed. A zero padding apparatus according to an embodiment of the present invention includes a processor configured to generate a LDPC information bit string by deciding a number of groups whose all bits are to be filled with 0 using a difference between a length of the LDPC information bit string and a length of a BCH-encoded bit string, selecting the groups using a shortening pattern order to fill all the bits of the groups with 0, and filling at least a part of remaining groups, which are not filled with 0, with the BCH-encoded bit string; and memory configured to provide the LDPC information bit string to an LDPC encoder.
    Type: Grant
    Filed: June 20, 2023
    Date of Patent: September 17, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim
  • Patent number: 12095554
    Abstract: An apparatus and method for transmitting broadcast signal to which channel bonding is applied are disclosed. The apparatus according to the present invention includes an input formatting unit configured to generate baseband packets corresponding to a plurality of packet types using data corresponding to a physical layer pipe; a stream partitioner configured to partition the baseband packets into a plurality of partitioned streams corresponding to the plurality of packet types; BICM units configured to perform error correction encoding, interleaving and modulation corresponding to the plurality of partitioned streams, respectively; and waveform generators configured to generate RF transmission signals corresponding to the plurality of partitioned streams, respectively.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: September 17, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Nam-Ho Hur, Heung-Mook Kim
  • Patent number: 12074614
    Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 16200 and a code rate of 3/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: August 27, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
  • Patent number: 12068756
    Abstract: A zero padding apparatus and method for variable length signaling information are disclosed. A zero padding apparatus according to an embodiment of the present invention includes a processor configured to generate a LDPC information bit string by deciding a number of groups whose all bits are to be filled with 0 using a difference between a length of the LDPC information bit string and a length of a BCH-encoded bit string, selecting the groups using a shortening pattern order to fill all the bits of the groups with 0, and filling at least a part of remaining groups, which are not filled with 0, with the BCH-encoded bit string; and memory configured to provide the LDPC information bit string to an LDPC encoder.
    Type: Grant
    Filed: May 30, 2023
    Date of Patent: August 20, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim
  • Patent number: 12047095
    Abstract: A parity interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: July 23, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim
  • Patent number: 12040928
    Abstract: An apparatus and method for broadcast signal frame using a bootstrap and a preamble are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes a time interleaver configured to generate a time-interleaved signal by performing interleaving on a BICM output signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: July 16, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim
  • Publication number: 20240195673
    Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
    Type: Application
    Filed: February 20, 2024
    Publication date: June 13, 2024
    Inventors: Sung-Ik PARK, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook KIM, Nam-Ho Hur
  • Publication number: 20240187273
    Abstract: An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a bootstrap generation unit for generating a bootstrap for signaling a system bandwidth field, corresponding to a system bandwidth for a post-bootstrap, and a baseband sampling rate coefficient; a preamble generation unit for generating a preamble located immediately following the bootstrap in a broadcast signal frame; and a payload generation unit for generating one or more subframes located immediately following the preamble in the broadcast signal frame. Here, the preamble may include L1 signaling data, and the L1 signaling data may include a reduced carrier coefficient.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 6, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-Young LEE, Sun-Hyoung KWON, Sung-Ik PARK, Nam-Ho HUR
  • Publication number: 20240171197
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Application
    Filed: January 31, 2024
    Publication date: May 23, 2024
    Inventors: Sung-Ik PARK, Sun-Hyoung KWON, Jae-Young LEE, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20240162918
    Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 7/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
    Type: Application
    Filed: January 22, 2024
    Publication date: May 16, 2024
    Inventors: Sung-Ik PARK, Heung-Mook KIM, Sun-Hyoung KWON, Nam-Ho HUR
  • Patent number: 11943090
    Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: March 26, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 11923872
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 64800 and a code rate of 7/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for quadrature phase shift keying (QPSK) modulation.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: March 5, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 11916572
    Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 64800 and a code rate of 7/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: February 27, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
  • Publication number: 20240032071
    Abstract: Disclosed herein is a method for time-division transmission of heterogeneous physical-layer signals. The method may include setting time-division-related information and alternately transmitting heterogeneous physical-layer signals to a terminal over the same frequency resource based on the time-division-related information.
    Type: Application
    Filed: April 7, 2023
    Publication date: January 25, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seok-Ki AHN, Sung-Ik PARK, Sun-Hyoung KWON, Sung-Jun AHN, Jung-Sun UM, Hoi-Yoon JUNG
  • Publication number: 20240022462
    Abstract: An apparatus and method for generating broadcast signal frame using layered division multiplexing are disclosed. The apparatus includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.
    Type: Application
    Filed: July 20, 2023
    Publication date: January 18, 2024
    Inventors: Jae-Young LEE, Sung-Ik PARK, Sun-Hyoung KWON, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20230403090
    Abstract: Disclosed herein are a broadcast node and a method for dynamically managing radio resources and heterogeneous network connectivity. The broadcast node is installed for a transmitter of an intelligent broadcast/broadband network, wherein the broadcast node is configured to generate an attribute message including an associated identification parameter for connection to a broadcast core network, and initiate a series of communication protocols for connection with additional intelligent entities, and manage a service request queue, a radio resource, an interface, and one or more services.
    Type: Application
    Filed: December 27, 2022
    Publication date: December 14, 2023
    Inventors: Sun-Hyoung KWON, Sung-Ik PARK, Nam-Ho HUR, Rufino Reydel Cabrera, Eneko Iradier, Jon Montalban, Pablo Angueira