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公开(公告)号：US11457174B2
公开(公告)日：2022-09-27
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：US11457101B2
公开(公告)日：2022-09-27
申请号：US16987731
申请日：2020-08-07
Inventor： Bo-Mi Lim , Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
IPC: H04L29/08 , H04L69/324 , H03M13/11 , H04L1/00
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：US11356214B2
公开(公告)日：2022-06-07
申请号：US16759969
申请日：2018-11-07
Inventor： Jae-Young Lee , Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Heung-Mook Kim , Nam-Ho Hur
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：US11336393B2
公开(公告)日：2022-05-17
申请号：US16866189
申请日：2020-05-04
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Bo-Mi Lim , Heung-Mook Kim , Nam-Ho Hur
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 combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal; a power normalizer configured to perform power-normalizing for reducing 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 time interleaving after performing the power-normalizing; 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：US11329762B2
公开(公告)日：2022-05-10
申请号：US17132186
申请日：2020-12-23
Inventor： Sun-Hyoung Kwon , Sung-Ik Park , Jae-Young Lee , Bo-Mi Lim , Heung-Mook Kim , Nam-Ho Hur
Abstract: An apparatus and method for generating a broadcast signal frame corresponding to a time interleaver supporting a plurality of operation modes 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; 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 corresponding to the time interleaver, the preamble includes a field indicating a start position of a first complete FEC block corresponding to each of physical layer pipes.
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Patent Agency Ranking
56.发明授权公开(公告)号：US11329739B2
公开(公告)日：2022-05-10
申请号：US16883759
申请日：2020-05-26
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
Abstract: An apparatus and method for generating a broadcast signal frame using enhanced layer dummy values 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; 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 corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and enhanced layer data corresponding to the one of the time interleaver groups include dummy values.
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公开(公告)号：US11316531B2
公开(公告)日：2022-04-26
申请号：US17021025
申请日：2020-09-15
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim
Abstract: A parity puncturing apparatus and method for fixed length signaling information are disclosed. A parity puncturing apparatus according to an embodiment of the present invention includes memory configured to provide a parity bit string for parity puncturing for the parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, and a processor configured to puncture a number of bits corresponding to a final puncturing size from the rear side of the parity bit string.
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公开(公告)号：US11283471B2
公开(公告)日：2022-03-22
申请号：US16864957
申请日：2020-05-01
Inventor： Sung-Ik Park , Sun-Hyoung Kwon , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
Abstract: A bit-interleaved coded modulation (BICM) reception device and a BICM reception method are disclosed herein. The BICM reception device includes a demodulator, a bit deinterleaver, and a decoder. The demodulator performs demodulation corresponding to 1024-symbol mapping. The bit deinterleaver performs group-unit deinterleaving on interleaved values. The interleaved values are generated after the demodulation. The decoder restores information bits by LDPC-decoding deinterleaved values generated based on the group-unit deinterleaving. The deinterleaved values corresponds to a LDPC codeword having a length of 64800 and a code rate of 2/15.
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公开(公告)号：US11218352B2
公开(公告)日：2022-01-04
申请号：US17140430
申请日：2021-01-04
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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60.发明授权公开(公告)号：US11177898B2
公开(公告)日：2021-11-16
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: H04W4/00 , H04J13/10 , H04L1/00 , H04B1/7073 , H04L27/26
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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