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公开(公告)号：US20210273657A1
公开(公告)日：2021-09-02
申请号：US17323949
申请日：2021-05-18
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 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：US20210258740A1
公开(公告)日：2021-08-19
申请号：US17242126
申请日：2021-04-27
Inventor： Jae-Young LEE , Sung-Ik PARK , Bo-Mi LIM , 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, 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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公开(公告)号：US20210250546A1
公开(公告)日：2021-08-12
申请号：US17240880
申请日：2021-04-26
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Heung-Mook KIM
IPC: H04N7/081 , H04H20/42 , H04L1/00 , H04L27/26 , H04N21/2343 , H04N21/2383 , H04N19/187 , H04N3/28 , H04N5/445 , H04N21/236
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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公开(公告)号：US20210006265A1
公开(公告)日：2021-01-07
申请号：US17024517
申请日：2020-09-17
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 3/15. 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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55.发明申请公开(公告)号：US20200328927A1
公开(公告)日：2020-10-15
申请号：US16760000
申请日：2018-10-31
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Nam-Ho HUR , Heung-Mook KIM
Abstract: An apparatus and method for transmitting broadcast signal to which channel bonding is applied are disclosed. The apparatus according to the present invention includes an input formatting unit configured to generate baseband packets corresponding to a plurality of packet types using data corresponding to a physical layer pipe; a stream partitioner configured to partition the baseband packets into a plurality of partitioned streams corresponding to the plurality of packet types; BICM units configured to perform error correction encoding, interleaving and modulation corresponding to the plurality of partitioned streams, respectively; and waveform generators configured to generate RF transmission signals corresponding to the plurality of partitioned streams, respectively.
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Patent Agency Ranking
公开(公告)号：US20200059701A1
公开(公告)日：2020-02-20
申请号：US16658283
申请日：2019-10-21
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM
IPC: H04N21/61 , H04N21/2383 , H04L27/36 , H04L5/00 , H04H20/42
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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公开(公告)号：US20190356339A1
公开(公告)日：2019-11-21
申请号：US16528939
申请日：2019-08-01
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 3/15. 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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公开(公告)号：US20190341939A1
公开(公告)日：2019-11-07
申请号：US16512679
申请日：2019-07-16
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 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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公开(公告)号：US20190296951A1
公开(公告)日：2019-09-26
申请号：US16357735
申请日：2019-03-19
Inventor： Sun-Hyoung KWON , Sung-Ik PARK , Jae-Young LEE , Bo-Mi LIM , Heung-Mook KIM
Abstract: Disclosed herein are an apparatus for analyzing a transmitter identification (TxID) signal and a method using the apparatus. The apparatus for analyzing the TxID signal includes a demodulator for decoding the bootstrap of a received signal; a cancellation unit for performing a host signal cancellation process for the received signal, thereby generating a host-signal-cancelled received signal; a correlator for calculating a correlation value between a signal corresponding to the host-signal-cancelled received signal and a signal corresponding to a TxID sequence; and a TxID profile analyzer for generating information about a channel between a transmitter corresponding to the TxID signal and a receiver using the correlation value.
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公开(公告)号：US20190268024A1
公开(公告)日：2019-08-29
申请号：US16405719
申请日：2019-05-07
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 3/15. 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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