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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：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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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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15.发明申请公开(公告)号：US20190230199A1
公开(公告)日：2019-07-25
申请号：US16313790
申请日：2017-07-05
Inventor： Bo-Mi LIM , Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
IPC: H04L29/08
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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Patent Agency Ranking
公开(公告)号：US20190222231A1
公开(公告)日：2019-07-18
申请号：US16353423
申请日：2019-03-14
Inventor： Bo-Mi LIM , Sun-Hyoung KWON , Sung-Ik PARK , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/2732 , H04L1/0043 , H04L1/0048 , H04L1/0057 , H04L1/0059 , H04L1/007 , H04L1/0071 , H04L47/6245
Abstract: An apparatus and method for time interleaving corresponding to hybrid time interleaving mode are disclosed. An apparatus for time interleaving according to an embodiment of the present invention includes a twisted block interleaver configured to perform intra-subframe interleaving corresponding to time interleaving blocks; and a convolutional delay line configured to perform inter-subframe interleaving using an output of the twisted block interleaver.
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公开(公告)号：US20180351609A1
公开(公告)日：2018-12-06
申请号：US15993023
申请日：2018-05-30
Inventor： Sung-Ik PARK , Bo-Mi LIM , Sun-Hyoung KWON , Heung-Mook KIM , Jae-Hyun SEO , Jae-Young LEE , Nam-Ho HUR , Hoi-Yoon JUNG , David GOMEZ-BARQUERO , Eduardo GARRO
IPC: H04B7/0413 , H04L25/02
CPC classification number: H04B7/0413 , H04L1/00 , H04L1/0668 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/03343 , H04L25/03891
Abstract: Disclosed herein are a method for transceiving a broadcast signal using a combination of multiple antenna schemes with layered division multiplexing and an apparatus for the method. A method for receiving a broadcast signal includes generating received signals based on signals that are received through multiple receiving antennas, estimating channels between the receiving antennas and transmitting antennas, restoring a core-layer signal corresponding to the received signals, and restoring an enhanced-layer signal based on a cancellation process, wherein the cancellation process corresponds to the core-layer signal and is separately performed for the individual receiving antennas.
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公开(公告)号：US20170149449A1
公开(公告)日：2017-05-25
申请号：US15426940
申请日：2017-02-07
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Bo-Mi LIM , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
CPC classification number: H03M13/1165 , H03M13/1105 , H03M13/17 , H03M13/2792 , H03M13/6522 , H04L1/0041 , H04L1/0071
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 16-symbol mapping.
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19.发明公开公开(公告)号：US20240155165A1
公开(公告)日：2024-05-09
申请号：US18242775
申请日：2023-09-06
Inventor： Hyun-Jeong YIM , Sung-Ik PARK , Bo-Mi LIM
IPC: H04N21/235 , H04N21/643
CPC classification number: H04N21/235 , H04N21/643
Abstract: Disclosed herein are a method and apparatus for transmitting an 8K Scalable High Efficiency Video Coding (SHVC) service based on broadcast network interconnection. The method includes defining signaling information for the 8K SHVC service, and delivering the defined signaling information to a MPEG Media Transport (MMT)/Real time Object delivery Over Unidirectional Transport (ROUTE) packetizer or to a gateway, separating 8K content into a base layer compatible with a broadcast network and an enhancement layer compatible with a communication network, delivering the base layer from the MMT/ROUTE packetizer to a receiver through the gateway and a transmitter, and delivering the enhancement layer to the receiver through a Dynamic Adaptive Streaming over HTTP (DASH) server.
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20.发明公开公开(公告)号：US20230155634A1
公开(公告)日：2023-05-18
申请号：US17859969
申请日：2022-07-07
Inventor： Bo-Mi LIM , Hoi-Yoon JUNG , Sung-Ik PARK , Hae-Chan KWON , Sung-Jun AHN , Nam-Ho HUR , Hyun-Jeong YIM
IPC: H04B7/0413 , H04W4/06 , H04L1/00
CPC classification number: H04B7/0413 , H04W4/06 , H04L1/0071
Abstract: Disclosed herein are a method for transmitting a broadcast signal for signaling information about a combination of Layered-Division Multiplexing (LDM) technology and Multiple-Input Multiple-Output (MIMO) technology and an apparatus using the method. The method includes generating first signaling information indicating whether MIMO technology is applied to an enhanced layer by LDM technology, generating second signaling information indicating an MIMO application method when the MIMO technology is applied to the enhanced layer, and generating a broadcast signal using the first signaling information and the second signaling information.
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