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101.发明申请公开(公告)号：US20190305997A1
公开(公告)日：2019-10-03
申请号：US16442780
申请日：2019-06-17
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM
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, type 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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102.发明申请公开(公告)号：US20190296841A1
公开(公告)日：2019-09-26
申请号：US16436621
申请日：2019-06-10
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
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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103.发明申请公开(公告)号：US20190260508A1
公开(公告)日：2019-08-22
申请号：US16401006
申请日：2019-05-01
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
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104.发明申请公开(公告)号：US20190173707A1
公开(公告)日：2019-06-06
申请号：US16204813
申请日：2018-11-29
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM
CPC classification number: H04L27/2615 , H04J11/00 , H04J2011/0013 , H04L1/0058 , H04L1/007 , H04L27/2601 , H04L27/2613 , H04L27/3488 , H04N19/30 , H04N21/234327 , H04W4/06 , Y02D70/00 , Y02D70/166 , Y02D70/168
Abstract: An apparatus and method for generating a broadcast signal frame including preamble for signaling injection level information. An apparatus for generating broadcast signal frame according to an embodiment of the present invention includes an injection level controller configured to generate a power reduced enhanced layer signal by reducing a power of an enhanced layer signal; a combiner configured to generate a multiplexed signal by combining a core layer signal and the power reduced 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 injection level information corresponding to the injection level controller.
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公开(公告)号：US20190082228A1
公开(公告)日：2019-03-14
申请号：US16185457
申请日：2018-11-09
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM
Abstract: An apparatus and method for broadcast signal frame using a bootstrap including a symbol for signaling a BICM mode and OFDM parameters of a preamble, together 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. In this case, the bootstrap includes a symbol for signaling a BICM mode and OFDM parameters of L1-Basic of the preamble, together.
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Patent Agency Ranking
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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107.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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108.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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109.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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110.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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