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公开(公告)号：US20190007249A1
公开(公告)日：2019-01-03
申请号：US15737780
申请日：2016-06-30
Inventor： Jae-Young LEE , Sun-Hyoung KWON , Sung-Ik PARK , Bo-Mi LIM , Heung-Mook KIM
CPC classification number: H04L27/2627 , H03M13/1102 , H03M13/1154 , H03M13/152 , H03M13/255 , H03M13/2732 , H03M13/2906 , H03M13/356 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071 , H04L5/0092 , H04L27/2602 , Y02D70/166 , Y02D70/168
Abstract: An apparatus and method for generating a broadcast signal frame corresponding to a time interleaver supporting a plurality of operation modes 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 corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and the time interleaver performs the interleaving by using one of a plurality of operation modes.
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132.发明申请公开(公告)号：US20180367753A1
公开(公告)日：2018-12-20
申请号：US16112454
申请日：2018-08-24
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM
IPC: H04N7/081 , H04N21/2383 , H04N19/187 , H04N21/2343 , H04N5/445 , H04N3/28 , H04L27/26 , H04N21/236 , H04H20/42 , H04L1/00
CPC classification number: H04N7/081 , H04H20/42 , H04L1/00 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071 , H04L27/26 , H04L27/2601 , H04N3/28 , H04N5/445 , H04N19/187 , H04N21/2343 , H04N21/234327 , H04N21/236 , H04N21/2383 , Y02D70/168
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.
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133.发明申请公开(公告)号：US20180192254A1
公开(公告)日：2018-07-05
申请号：US15505604
申请日：2016-02-11
Inventor： Jae-Young LEE , Sung-Ik PARK , Bo-Mi LIM , Sun-Hyoung KWON , Heung-Mook KIM
CPC classification number: H04W4/06 , H04J11/00 , H04J2011/0013 , H04L1/0058 , H04L1/0071 , H04L1/0083 , H04L12/184 , H04L27/26 , H04L27/2605 , H04L2001/0093 , Y02D70/168
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, start position information of Physical Layer Pipes (PLPs) and time interleaver information shared by the core layer signal and the enhanced layer signal.
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134.发明申请公开(公告)号：US20180041230A1
公开(公告)日：2018-02-08
申请号：US15552850
申请日：2016-02-23
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC classification number: H03M13/2792 , H03M13/1148 , H03M13/1165 , H03M13/152 , H03M13/253 , H03M13/255 , H03M13/2778 , H03M13/2906 , H03M13/618 , H03M13/6362 , H04L1/0041 , H04L1/0058 , H04L1/0068 , H04L1/0071
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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135.发明申请公开(公告)号：US20180041226A1
公开(公告)日：2018-02-08
申请号：US15553908
申请日：2016-02-23
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC classification number: H03M13/1102 , H03M13/116 , H03M13/152 , H03M13/253 , H03M13/255 , H03M13/2778 , H03M13/2903 , H03M13/2906 , H03M13/618
Abstract: A zero padding apparatus and method for variable 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：US20180034478A1
公开(公告)日：2018-02-01
申请号：US15553458
申请日：2016-02-23
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC classification number: H03M13/1148 , G06T7/162 , H03M13/1102 , H03M13/1105 , H03M13/1111 , H03M13/1165 , H03M13/152 , H03M13/255 , H03M13/27 , H03M13/2778 , H03M13/2906 , H03M13/618 , H03M13/6362 , H04W72/0466
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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公开(公告)号：US20180019764A1
公开(公告)日：2018-01-18
申请号：US15703822
申请日：2017-09-13
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Bo-Mi LIM , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2767 , H03M13/1165 , H03M13/255 , H03M13/2778 , H03M13/2792 , H04L1/0057 , H04L1/0071 , H04L2001/0093
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 64-symbol mapping.
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138.发明申请公开(公告)号：US20180006663A1
公开(公告)日：2018-01-04
申请号：US15709191
申请日：2017-09-19
Inventor： Sung-Ik PARK , Heung-Mook KIM , Sun-Hyoung KWON , Nam-Ho HUR
CPC classification number: H03M13/1102 , H03M13/116 , H03M13/1177 , H03M13/1185 , H03M13/255 , H03M13/616
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 4/15. 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).
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139.发明申请公开(公告)号：US20170279550A1
公开(公告)日：2017-09-28
申请号：US15461231
申请日：2017-03-16
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H04H20/42 , H04H20/426 , H04H60/07 , H04H60/73 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/007 , H04L1/0071 , H04L1/0075 , H04L27/2601 , H04L27/2615 , Y02D70/00 , Y02D70/166 , Y02D70/168
Abstract: An apparatus and method for generating a broadcast signal frame using enhanced layer dummy values 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; 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 corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and enhanced layer data corresponding to the one of the time interleaver groups include dummy values.
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140.发明申请公开(公告)号：US20170272692A1
公开(公告)日：2017-09-21
申请号：US15532061
申请日：2016-03-08
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM
IPC: H04N7/081 , H04N19/187 , H04N5/445 , H04N21/236 , H04N3/28 , H04L27/26 , H04N21/2343
CPC classification number: H04N7/081 , H04H20/42 , H04L1/00 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0065 , H04L1/007 , H04L1/0071 , H04L27/26 , H04L27/2601 , H04N3/28 , H04N5/445 , H04N19/187 , H04N21/2343 , H04N21/234327 , H04N21/236 , H04N21/2383
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.
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