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公开(公告)号：US20210351793A1
公开(公告)日：2021-11-11
申请号：US17385678
申请日：2021-07-26
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 1024-symbol mapping.
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142.发明申请公开(公告)号：US20210306119A1
公开(公告)日：2021-09-30
申请号：US17214482
申请日：2021-03-26
Inventor： Jae-Hyun SEO , Sung-Ik PARK , Seok-Ki AHN , Jae-Young LEE
Abstract: Disclosed herein are a transmission apparatus, a reception apparatus and a transmission/reception method for an OFDM-based broadcasting system. The transmission apparatus includes multiple transmission frame generation units for generating multiple transmission frames from transmission data, an extended frame combination unit for generating an extended frame by combining the multiple transmission frames so that the multiple transmission frames are adjacent to each other based on a frequency, an extended OFDM modulation unit for modulating the extended frame and then generating a modulated signal, and a frequency up-conversion unit for performing frequency up-conversion on the modulated signal and generating a transmission signal, wherein each of the transmission frame generation units includes a data input unit for receiving transmission data, a channel-encoding unit for encoding the received transmission data and generating encoded data, and a framing and interleaving unit for framing and interleaving the encoded data and generating a transmission frame.
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公开(公告)号：US20210250050A1
公开(公告)日：2021-08-12
申请号：US17240801
申请日：2021-04-26
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 256-symbol mapping.
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144.发明申请公开(公告)号：US20210144237A1
公开(公告)日：2021-05-13
申请号：US17153750
申请日：2021-01-20
Inventor： Jae-Young LEE , Sung-Ik PARK , Sun-Hyoung KWON , Bo-Mi LIM , Heung-Mook KIM
Abstract: An apparatus and method for generating a broadcast signal frame for signaling a time interleaving mode 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 time interleaving on a BICM output signal; and a frame builder configured to generate a broadcast signal frame including a preamble for signaling a time interleaving mode corresponding to the time interleaver for each of physical layer pipes (PLPs).
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公开(公告)号：US20210006268A1
公开(公告)日：2021-01-07
申请号：US17025894
申请日：2020-09-18
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 5/15. 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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Patent Agency Ranking
146.发明申请公开(公告)号：US20200351469A1
公开(公告)日：2020-11-05
申请号：US16929990
申请日：2020-07-15
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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147.发明申请公开(公告)号：US20200236202A1
公开(公告)日：2020-07-23
申请号：US16840565
申请日：2020-04-06
Inventor： Jae-Young LEE , Heung-Mook KIM , Sung-Ik PARK , Sun-Hyoung KWON
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 time interleaver information shared by the core layer signal and the enhanced layer signal, using the time-interleaved signal.
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148.发明申请公开(公告)号：US20200220640A1
公开(公告)日：2020-07-09
申请号：US16781332
申请日：2020-02-04
Inventor： Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM , Nam-Ho HUR
IPC: H04J13/10 , H04L1/00 , H04L27/26 , H04B1/7073
Abstract: An apparatus for transmitting broadcasting signal using transmitter identification 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; 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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公开(公告)号：US20190393893A1
公开(公告)日：2019-12-26
申请号：US16559496
申请日：2019-09-03
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 256-symbol mapping.
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公开(公告)号：US20190387035A1
公开(公告)日：2019-12-19
申请号：US16444095
申请日：2019-06-18
Inventor： Jae-Young LEE , Young-Min CHOI , Soon-Choul KIM , Sung-Ik PARK , Heung-Mook KIM
IPC: H04L29/06 , H04L12/741 , H04L12/46
Abstract: Disclosed herein are a method for broadcast gateway signaling and an apparatus for the same. The apparatus for broadcast gateway signaling includes an inner packet generator for generating an inner packet corresponding to the inner layer of a tunneling system; an outer packet generator for generating an outer packet corresponding to the outer layer of the tunneling system; an outer packet header generator for generating the header of the outer packet; and an STL transmission unit for transmitting the outer packet to a transmitter via a Studio-to-Transmitter Link (STL).
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