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公开(公告)号：US20190260395A1
公开(公告)日：2019-08-22
申请号：US16400988
申请日：2019-05-01
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 quadrature phase shift keying (QPSK) modulation.
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公开(公告)号：US20190253082A1
公开(公告)日：2019-08-15
申请号：US16395117
申请日：2019-04-25
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2792 , H03M13/1102 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/2778 , H03M13/616 , H03M13/6552 , H04L1/0041 , H04L1/0058 , H04L1/0071
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 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.
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63.发明申请公开(公告)号：US20190230199A1
公开(公告)日：2019-07-25
申请号：US16313790
申请日：2017-07-05
Inventor： Bo-Mi LIM , Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
IPC: H04L29/08
Abstract: 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; a power normalizer configured to reduce 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 time-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 start position information and size information for each of Physical Layer Pipes (PLPs). In this case, the Physical Layer Pipes include a core layer physical layer pipe corresponding to the core layer signal and an enhanced layer physical layer pipe corresponding to the enhanced layer signal.
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公开(公告)号：US20190229754A1
公开(公告)日：2019-07-25
申请号：US16369742
申请日：2019-03-29
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2792 , G06F11/1004 , G06F11/1076 , G11B20/1806 , G11B20/1809 , G11B2020/185 , H03M13/1102 , H03M13/1165 , H03M13/255 , H03M13/27 , H03M13/2778
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 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 1024-symbol mapping.
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公开(公告)号：US20190222231A1
公开(公告)日：2019-07-18
申请号：US16353423
申请日：2019-03-14
Inventor： Bo-Mi LIM , Sun-Hyoung KWON , Sung-Ik PARK , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2732 , H04L1/0043 , H04L1/0048 , H04L1/0057 , H04L1/0059 , H04L1/007 , H04L1/0071 , H04L47/6245
Abstract: An apparatus and method for time interleaving corresponding to hybrid time interleaving mode are disclosed. An apparatus for time interleaving according to an embodiment of the present invention includes a twisted block interleaver configured to perform intra-subframe interleaving corresponding to time interleaving blocks; and a convolutional delay line configured to perform inter-subframe interleaving using an output of the twisted block interleaver.
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Patent Agency Ranking
66.发明申请公开(公告)号：US20190215009A1
公开(公告)日：2019-07-11
申请号：US16353378
申请日：2019-03-14
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
Abstract: A parity puncturing apparatus and method for fixed length signaling information are disclosed. A parity puncturing apparatus according to an embodiment of the present invention includes memory configured to provide a parity bit string for parity puncturing for the parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, and a processor configured to puncture a number of bits corresponding to a final puncturing size from the rear side of the parity bit string.
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67.发明申请公开(公告)号：US20180367361A1
公开(公告)日：2018-12-20
申请号：US16111071
申请日：2018-08-23
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：US20180351609A1
公开(公告)日：2018-12-06
申请号：US15993023
申请日：2018-05-30
Inventor： 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
IPC: H04B7/0413 , H04L25/02
CPC classification number: H04B7/0413 , H04L1/00 , H04L1/0668 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/03343 , H04L25/03891
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.
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69.发明申请公开(公告)号：US20180026821A1
公开(公告)日：2018-01-25
申请号：US15556243
申请日：2016-03-04
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM
CPC classification number: H04L27/2627 , H04J11/004 , H04L1/0041 , H04L1/0058 , H04L1/0068 , H04L1/0071 , H04L27/26 , H04L27/2613 , H04L27/2647 , H04L65/4076
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.
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70.发明申请公开(公告)号：US20170238315A1
公开(公告)日：2017-08-17
申请号：US15504298
申请日：2015-08-25
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H04W72/0446 , H04J11/004 , H04L1/0063 , H04L1/0071 , H04L5/22 , H04L27/26 , H04L27/2602 , H04L27/34 , H04L65/4076 , H04W52/04 , H04W52/346 , Y02D70/00
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 bootstrap and a preamble using the time-interleaved signal.
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