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81.发明申请MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 3/15 CODE RATE 有权使用非均匀16符号信号的调制器和调制方法用于低密度奇偶校验检查具有3/15代码率的编码公开(公告)号：US20150229335A1
公开(公告)日：2015-08-13
申请号：US14618972
申请日：2015-02-10
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/1165 , H03M13/255 , H03M13/2792 , H03M13/616 , H03M13/6552 , H04L1/0041 , H04L1/0042 , H04L1/0057 , H04L1/0058 , H04L1/0071 , H04L27/3422
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 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
Abstract translation: 公开了一种使用非均匀16符号信号星座的调制器和调制方法。 调制器包括存储器和处理器。 存储器接收与码率为3/15的低密度奇偶校验（LDPC）码对应的码字。 处理器将码字映射为4比特的16位符号的不均匀16符号信号星座。
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82.发明公开公开(公告)号：US20230371048A1
公开(公告)日：2023-11-16
申请号：US18354251
申请日：2023-07-18
Inventor： Jae-Young LEE , Soon-Choul KIM , Sung-Ik PARK , Heung-Mook KIM
CPC classification number: H04W72/30 , H04L12/1859 , H04L12/4633
Abstract: Disclosed herein are a method and apparatus of broadcast gateway signaling for channel bonding. The apparatus for broadcast gateway signaling includes an input formatting unit configured to generate baseband packets corresponding to channel bonding; and a stream partitioner configured to allocate the baseband packets to two or more RF channels of the channel bonding for generating an outer tunnel data stream, the outer tunnel data stream generated in different ways according to a plurality of operation modes for the channel bonding.
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公开(公告)号：US20230268935A1
公开(公告)日：2023-08-24
申请号：US18309278
申请日：2023-04-28
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2757 , H04L27/20 , H03M13/2792 , H04L27/3416 , H03M13/255 , H04L1/0057 , H04L1/0071 , H03M13/116 , H03M13/1185 , H03M13/2778 , H03M13/1102 , H03M13/616 , H03M13/6552 , H04L1/0041 , H04L1/0058
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 7/15. 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：US20230022090A1
公开(公告)日：2023-01-26
申请号：US17780446
申请日：2020-11-24
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE
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.
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公开(公告)号：US20220216931A1
公开(公告)日：2022-07-07
申请号：US17700751
申请日：2022-03-22
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
IPC: H04H20/67 , H04H20/71 , H04L1/00 , H04L69/323 , H04L27/26 , H04H20/31 , H04H60/44 , H04J11/00 , H04H60/73 , H04W52/32
Abstract: An apparatus for transmitting broadcasting signal using transmitter identification scaled by 4-bit injection level code and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter, the transmitter identification signal scaled by an injection level code; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.
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Patent Agency Ranking
公开(公告)号：US20210359708A1
公开(公告)日：2021-11-18
申请号：US17386373
申请日：2021-07-27
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Bo-Mi LIM , 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 16200 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 64-symbol mapping.
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公开(公告)号：US20210266013A1
公开(公告)日：2021-08-26
申请号：US17315450
申请日：2021-05-10
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
Abstract: A parity puncturing apparatus and method for variable 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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公开(公告)号：US20210152412A1
公开(公告)日：2021-05-20
申请号：US17140430
申请日：2021-01-04
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 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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公开(公告)号：US20210144040A1
公开(公告)日：2021-05-13
申请号：US17153038
申请日：2021-01-20
Inventor： Jae-Young LEE , Sun-Hyoung KWON , Sung-Ik PARK , Bo-Mi LIM , Heung-Mook KIM
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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公开(公告)号：US20210119729A1
公开(公告)日：2021-04-22
申请号：US17132186
申请日：2020-12-23
Inventor： Sun-Hyoung KWON , Sung-Ik PARK , Jae-Young LEE , Bo-Mi LIM , Heung-Mook KIM , Nam-Ho HUR
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; 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 preamble includes a field indicating a start position of a first complete FEC block corresponding to each of physical layer pipes.
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