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131.发明公开公开(公告)号：US20240322842A1
公开(公告)日：2024-09-26
申请号：US18735554
申请日：2024-06-06
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC classification number: H03M13/152 , H03M13/116 , H03M13/1162 , H03M13/1165 , H03M13/271 , H03M13/2778 , H03M13/618 , H03M13/6362 , H03M13/253 , H03M13/255 , H03M13/2906 , H03M13/6393 , H03M13/6552
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.
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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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133.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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134.发明公开公开(公告)号：US20230388399A1
公开(公告)日：2023-11-30
申请号：US18450004
申请日：2023-08-15
Inventor： Jae-Young LEE , Heung-Mook KIM , Sung-Ik PARK , Sun-Hyoung KWON
IPC: H04L69/324 , H04L1/00 , H04L5/00 , H04L69/323
CPC classification number: H04L69/324 , H04L1/0041 , H04L1/005 , H04L1/0057 , H04L1/0058 , H04L1/007 , H04L1/0071 , H04L5/0044 , H04L69/323 , Y02D30/70 , H04H60/07
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 time interleaver information shared by the core layer signal and the enhanced layer signal, using the time-interleaved signal.
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135.发明公开公开(公告)号：US20230344449A1
公开(公告)日：2023-10-26
申请号：US18338081
申请日：2023-06-20
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC classification number: H03M13/1148 , H03M13/1105 , H03M13/1165 , H03M13/255 , H03M13/27 , H03M13/2778 , H03M13/2906 , H03M13/618 , H03M13/6362 , G06T7/162
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.
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Patent Agency Ranking
136.发明申请公开(公告)号：US20220394115A1
公开(公告)日：2022-12-08
申请号：US17882848
申请日：2022-08-08
Inventor： Jae-Young LEE , Heung-Mook KIM , Sung-Ik PARK , Sun-Hyoung KWON
IPC: H04L69/324 , H04L1/00 , H04L5/00 , H04L69/323
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 time interleaver information shared by the core layer signal and the enhanced layer signal, using the time-interleaved signal.
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137.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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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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公开(公告)号：US20220069845A1
公开(公告)日：2022-03-03
申请号：US17522990
申请日：2021-11-10
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
Abstract: A parity interleaving apparatus and method for fixed 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.
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140.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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