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公开(公告)号：US20240187273A1
公开(公告)日：2024-06-06
申请号：US18551978
申请日：2022-03-08
Inventor： Jae-Young LEE , Sun-Hyoung KWON , Sung-Ik PARK , Nam-Ho HUR
IPC: H04L12/18
CPC classification number: H04L12/189
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.
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2.发明公开公开(公告)号：US20240022462A1
公开(公告)日：2024-01-18
申请号：US18355987
申请日：2023-07-20
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM , Nam-Ho HUR
IPC: H04L27/26 , H04J11/00 , H04L1/00 , H04L27/34 , H04W52/34 , H04L65/611 , H04L5/22 , H04W52/04 , H04W72/0446
CPC classification number: H04L27/2613 , H04L27/26 , H04J11/004 , H04L1/0071 , H04L27/2602 , H04L27/34 , H04W52/346 , H04L65/611 , H04L1/0063 , H04L5/22 , H04W52/04 , H04W72/0446 , Y02D30/70 , H04L27/26025 , H04L27/26136
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.
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3.发明公开公开(公告)号：US20230283333A1
公开(公告)日：2023-09-07
申请号：US18176556
申请日：2023-03-01
Inventor： Hoi-Yoon JUNG , Sung-Ik PARK , Jae-Hyun SEO , Bo-Mi LIM , Dong-Joon CHOI , Nam-Ho HUR , Jeong-Chang KIM
IPC: H04B7/0456 , H04L1/00
CPC classification number: H04B7/0469 , H04L1/0071
Abstract: Disclosed herein are an apparatus and method for channel bonding-based multi-antenna signal transmission in a broadcasting system. An apparatus for channel bonding-based multi-antenna signal transmission includes an input formatting unit for converting input data into a Physical Layer Pipe (PLP), a stream partitioning unit for partitioning the PLP into pieces of data to be transmitted to two or more channels, respectively, and two or more transmission units for transmitting the pieces of data resulting from partitioning to corresponding channels through multiple antennas.
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公开(公告)号：US20230146118A1
公开(公告)日：2023-05-11
申请号：US18049530
申请日：2022-10-25
Inventor： Hoi-Yoon JUNG , Bo-Mi LIM , Sung-Ik PARK , Hae-Chan KWON , Sung-Jun AHN , Nam-Ho HUR
IPC: H04B7/0456 , H04L1/00 , H03M13/25
CPC classification number: H04B7/0456 , H04L1/0071 , H03M13/255
Abstract: Disclosed herein are a broadcast signal transmission/reception method using multiple antennas and layered-division multiplexing and an apparatus for the same. A broadcast signal transmission apparatus includes a Multiple-Input Multiple-Output (MIMO) Bit-Interleaved Coded Modulation (BICM) unit for dividing enhanced layer data into two enhanced layer signals having different polarizations, a combination unit for generating a multiplexed signal corresponding to a first transmitting antenna by combining a core layer signal corresponding to core layer data with a first enhanced layer signal, and transmission signal generation units for generating a first transmission signal, corresponding to the multiplexed signal and transmitted through the first transmitting antenna, and a second transmission signal, corresponding to a second enhanced layer signal and transmitted through a second transmitting antenna.
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5.发明申请公开(公告)号：US20220279513A1
公开(公告)日：2022-09-01
申请号：US17746799
申请日：2022-05-17
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM , Nam-Ho HUR
IPC: H04W72/04 , H04L27/26 , H04J11/00 , H04L1/00 , H04L27/34 , H04W52/34 , H04L65/611 , H04L5/22 , H04W52/04
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.
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Patent Agency Ranking
公开(公告)号：US20220264499A1
公开(公告)日：2022-08-18
申请号：US17735261
申请日：2022-05-03
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM , Nam-Ho HUR
Abstract: Disclosed herein are a gateway-signaling method for frequency/timing offsets and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a frequency/timing decision unit for determining a center frequency to which a frequency offset is applied using a carrier offset, which is identified using a timing and a management packet transmitted through a Studio-to-Transmitter Link (STL); and an RF signal generation unit for generating an RF signal to be transmitted, which corresponds to the center frequency.
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7.发明申请公开(公告)号：US20210351970A1
公开(公告)日：2021-11-11
申请号：US17379820
申请日：2021-07-19
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM , Nam-Ho HUR
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.
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公开(公告)号：US20210351793A1
公开(公告)日：2021-11-11
申请号：US17385678
申请日：2021-07-26
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
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 4/15. 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 1024-symbol mapping.
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公开(公告)号：US20210250050A1
公开(公告)日：2021-08-12
申请号：US17240801
申请日：2021-04-26
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Bo-Mi LIM , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
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 256-symbol mapping.
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公开(公告)号：US20210006268A1
公开(公告)日：2021-01-07
申请号：US17025894
申请日：2020-09-18
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
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 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 4096-symbol mapping.
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