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41.发明公开公开(公告)号：US20230246897A1
公开(公告)日：2023-08-03
申请号：US18298498
申请日：2023-04-11
Inventor： Sung-Ik PARK , Jae-Young LEE , Sun-Hyoung KWON , Heung-Mook KIM
IPC: H04L27/26 , H04J11/00 , H04L1/00 , H04L7/08 , H04L65/611
CPC classification number: H04L27/2627 , H04J11/004 , H04L1/0041 , H04L1/0058 , H04L1/0068 , H04L1/0071 , H04L1/0072 , H04L7/08 , H04L27/26 , H04L27/2613 , H04L27/2647 , H04L65/611
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：US20220394117A1
公开(公告)日：2022-12-08
申请号：US17886167
申请日：2022-08-11
Inventor： Bo-Mi LIM , Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
IPC: H04L69/324
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：US20220329264A1
公开(公告)日：2022-10-13
申请号：US17845614
申请日：2022-06-21
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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44.发明申请公开(公告)号：US20220200628A1
公开(公告)日：2022-06-23
申请号：US17694774
申请日：2022-03-15
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
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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公开(公告)号：US20220132452A1
公开(公告)日：2022-04-28
申请号：US17182955
申请日：2021-02-23
Inventor： Soon-Choul KIM , Jae-Young LEE , Hye-Ju OH , Hyun-Jeong YIM , Dong-Joon CHOI
Abstract: Disclosed herein are a method for broadcast gateway signaling using a cloud network and an apparatus for the same. The method includes generating an outer packet corresponding to the outer layer of a tunneling system using an inner packet corresponding to the inner layer of the tunneling system, generating a header of the outer packet, and transmitting the outer packet to a transmitter through a Studio-to-Transmitter Link (STL). The header includes an STL propagation delay time field indicating a reception wait time for an STL stream corresponding to the outer packet.
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Patent Agency Ranking
公开(公告)号：US20220094585A1
公开(公告)日：2022-03-24
申请号：US17540301
申请日：2021-12-02
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：US20220007334A1
公开(公告)日：2022-01-06
申请号：US17476578
申请日：2021-09-16
Inventor： Jae-Young LEE , Soon-Choul KIM , Sung-Ik PARK , Heung-Mook KIM
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：US20220006474A1
公开(公告)日：2022-01-06
申请号：US17479763
申请日：2021-09-20
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 4096-symbol mapping.
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49.发明申请公开(公告)号：US20210367821A1
公开(公告)日：2021-11-25
申请号：US17397843
申请日：2021-08-09
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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公开(公告)号：US20210367615A1
公开(公告)日：2021-11-25
申请号：US17391991
申请日：2021-08-02
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 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 4096-symbol mapping.
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