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: 10187237
    Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention 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 preamble for signaling, type information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: January 22, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Young Lee, Sung-Ik Park, Sun-Hyoung Kwon, Heung-Mook Kim
  • Publication number: 20190020354
    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 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: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Sung-Ik PARK, Heung-Mook KIM, Sun-Hyoung KWON, Nam-Ho HUR
  • Patent number: 10177790
    Abstract: A 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 5/15. 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 64-symbol mapping.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: January 8, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10177866
    Abstract: A broadcast signal transmission apparatus and method using layered division multiplexing are disclosed. A broadcast signal transmission apparatus according to an embodiment of the present invention 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; a frame builder configured to generate a broadcast signal frame using the time-interleaved signal; and an orthogonal frequency division multiplexing (OFDM) transmitter configured to generate a pilot signal that is shared by a core layer corresponding to the core layer signal and an enhanced layer corresponding to the enhanced layer signal.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: January 8, 2019
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, R&DB FOUNDATION, KOREA MARITIME AND OCEAN UNIVERSITY
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jeong-Chang Kim, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10177788
    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 2/15. 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 7, 2017
    Date of Patent: January 8, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
  • Publication number: 20190007065
    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 16200 and a code rate of 2/15. 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 16-symbol mapping.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    Inventors: Sung-Ik PARK, Sun-Hyoung KWON, Bo-Mi LIM, Jae-Young LEE, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20190007249
    Abstract: An apparatus and method for generating a broadcast signal frame corresponding to a time interleaver supporting a plurality of operation modes are disclosed.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 3, 2019
    Applicant: Electronics and Telecommunications Research Instiute
    Inventors: Jae-Young LEE, Sun-Hyoung KWON, Sung-Ik PARK, Bo-Mi LIM, Heung-Mook KIM
  • Publication number: 20180375601
    Abstract: An apparatus for transmitting broadcasting signal using transmitter identification scaled by 4-bit injection level code and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter, the transmitter identification signal scaled by an injection level code; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.
    Type: Application
    Filed: January 4, 2017
    Publication date: December 27, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik PARK, Sun-Hyoung KWON, Jae-Young LEE, Heung-Mook KIM, Nam-Ho HUR
  • Patent number: 10164740
    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 to generate a multiplexed signal, a power normalizer configured to reduce power of the multiplexed signal to power corresponding to the core layer signal, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 25, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10164658
    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 16200 and a code rate of 3/15. 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 256-symbol mapping.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: December 25, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Bo-Mi Lim, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Publication number: 20180367361
    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: August 23, 2018
    Publication date: December 20, 2018
    Inventors: Sung-Ik PARK, Jae-Young LEE, Sun-Hyoung KWON, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20180367753
    Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention 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 preamble for signaling, size information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Inventors: Jae-Young LEE, Sung-Ik PARK, Sun-Hyoung KWON, Heung-Mook KIM
  • Publication number: 20180359045
    Abstract: An apparatus for transmitting broadcasting signal using transmitter identification and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.
    Type: Application
    Filed: December 30, 2016
    Publication date: December 13, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik PARK, Sun-Hyoung KWON, Jae-Young LEE, Heung-Mook KIM, Nam-Ho HUR
  • Publication number: 20180351609
    Abstract: Disclosed herein are a method for transceiving a broadcast signal using a combination of multiple antenna schemes with layered division multiplexing and an apparatus for the method. A method for receiving a broadcast signal includes generating received signals based on signals that are received through multiple receiving antennas, estimating channels between the receiving antennas and transmitting antennas, restoring a core-layer signal corresponding to the received signals, and restoring an enhanced-layer signal based on a cancellation process, wherein the cancellation process corresponds to the core-layer signal and is separately performed for the individual receiving antennas.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Applicant: Electronics and Telecommunications Research Instit ute
    Inventors: Sung-Ik PARK, Bo-Mi LIM, Sun-Hyoung KWON, Heung-Mook KIM, Jae-Hyun SEO, Jae-Young LEE, Nam-Ho HUR, Hoi-Yoon JUNG, David GOMEZ-BARQUERO, Eduardo GARRO
  • Patent number: 10142152
    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: March 4, 2016
    Date of Patent: November 27, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim
  • Publication number: 20180337813
    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: July 23, 2018
    Publication date: November 22, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung-Ik PARK, Jae-Young LEE, Sun-Hyoung KWON, Heung-Mook KIM
  • Patent number: 10122960
    Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention 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 preamble for signaling, size information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: November 6, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-Young Lee, Sung-Ik Park, Sun-Hyoung Kwon, Heung-Mook Kim
  • Patent number: 10122567
    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: February 25, 2015
    Date of Patent: November 6, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Jae-Young Lee, Sun-Hyoung Kwon, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10110250
    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 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: November 8, 2016
    Date of Patent: October 23, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Heung-Mook Kim, Sun-Hyoung Kwon, Nam-Ho Hur
  • Publication number: 20180302253
    Abstract: An apparatus and method for broadcast signal frame using layered division multiplexing are disclosed. An apparatus for generating broadcast signal frame according to an embodiment of the present invention 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 preamble for signaling, type information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 18, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTE
    Inventors: Jae-Young LEE, Sung-Ik PARK, Sun-Hyoung KWON, Heung-Mook KIM