-
公开(公告)号：US10367669B2
公开(公告)日：2019-07-30
申请号：US16012977
申请日：2018-06-20
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.
-
公开(公告)号：US10326476B2
公开(公告)日：2019-06-18
申请号：US15402066
申请日：2017-01-09
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 quadrature phase shift keying (QPSK) modulation.
-
公开(公告)号：US10313749B2
公开(公告)日：2019-06-04
申请号：US14994647
申请日：2016-01-13
Inventor： Sun-Hyoung Kwon , Sung-Ik Park , Jae-Young Lee , Heung-Mook Kim
IPC: H04N21/4402 , H04N21/2343 , H04J99/00 , H04N21/845
Abstract: An apparatus and method for broadcasting scalable video contents are disclosed. An apparatus for broadcasting scalable video contents according to an embodiment of the present invention includes a video codec unit configured to generate a plurality of codec layer signals by dividing codec media stream into a plurality of layers; encapsulation and delivery unit configured to perform a transformation for transferring on the codec layer signals; and broadcasting signal multiplexing unit configured to generate a layered-division-multiplexed broadcasting signal by combining the codec layer signals at different power levels.
-
204.发明授权公开(公告)号：US10225835B2
公开(公告)日：2019-03-05
申请号：US15504298
申请日：2015-08-25
Inventor： Jae-Young Lee , Sung-Ik Park , Sun-Hyoung Kwon , Heung-Mook Kim , Nam-Ho Hur
IPC: H04B7/212 , H04W72/04 , H04L27/26 , H04J11/00 , H04L1/00 , H04L27/34 , H04L5/22 , H04L29/06 , H04W52/04 , H04W52/34
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 bootstrap and a preamble using the time-interleaved signal.
-
公开(公告)号：US10225040B2
公开(公告)日：2019-03-05
申请号：US15212109
申请日：2016-07-15
Inventor： Sung-Ik Park , Jae-Young Lee , Sun-Hyoung Kwon , Heung-Mook Kim , Bo-Mi Lim , David Gomez-Barquero , Eduardo Garro , Jordi Joan Gimenez
Abstract: An apparatus for transmitting broadcast signal according to the present invention includes an enhanced layer stream partitioner configured to generate first and second enhanced layer partitioned signals by partitioning an enhanced layer stream; first and second combiners configured to generate a first multiplexed signal corresponding to the first enhanced layer partitioned signal and a second multiplexed signal corresponding to the second enhanced layer partitioned signal; first and second power normalizers configured to reduce powers of the first multiplexed signal and the second multiplexed signal; first and second time interleavers configured to generate a first time-interleaved signal corresponding to the first enhanced layer partitioned signal and a second time-interleaved signal corresponding to the second enhanced layer partitioned signal; and first and second OFDM transmitters configured to transmit signals corresponding to the first time-interleaved signal and the second time-interleaved signal using an OFDM communication scheme.
-
Patent Agency Ranking
公开(公告)号：US10205467B2
公开(公告)日：2019-02-12
申请号：US15612972
申请日：2017-06-02
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 256-symbol mapping.
-
公开(公告)号：US10097211B2
公开(公告)日：2018-10-09
申请号：US15612801
申请日：2017-06-02
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 16-symbol mapping.
-
公开(公告)号：US09800268B2
公开(公告)日：2017-10-24
申请号：US14719254
申请日：2015-05-21
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/2767 , H03M13/1105 , 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 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.
-
公开(公告)号：US09729173B2
公开(公告)日：2017-08-08
申请号：US15272163
申请日：2016-09-21
Inventor： Sung-Ik Park , Heung-Mook Kim , Sun-Hyoung Kwon , Nam-Ho Hur
CPC classification number: H03M13/255 , H03M13/036 , H03M13/1102 , H03M13/1105 , H03M13/116 , H03M13/1165 , H03M13/1185 , H03M13/616 , H04L1/0043 , H04L1/0057
Abstract: A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 16200 and a code rate of 5/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).
-
公开(公告)号：US20170149454A1
公开(公告)日：2017-05-25
申请号：US15424192
申请日：2017-02-03
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC classification number: H03M13/2792 , H03M13/1102 , H03M13/1148 , H03M13/1165 , H03M13/255 , H03M13/2778 , H04L1/0041 , H04L1/0045 , H04L1/0058 , 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 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 64-symbol mapping.
-
-
-
-
-
-
-
-
-
Search Results
279
records
(took 0.032 seconds)
