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51.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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52.发明公开公开(公告)号：US20240195673A1
公开(公告)日：2024-06-13
申请号：US18582418
申请日：2024-02-20
Inventor： Sung-Ik PARK , Jae-Young Lee , Sun-Hyoung Kwon , Heung-Mook KIM , Nam-Ho Hur
CPC classification number: H04L27/2697 , H03M13/25 , H03M13/27 , H04L1/00 , H04L1/0041 , H04L1/0048 , H04L1/0061 , H04L1/0071 , H04L5/0007 , H04L2001/0098 , H04L27/2601
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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53.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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54.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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55.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
56.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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57.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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60.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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