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公开(公告)号：US11153849B2
公开(公告)日：2021-10-19
申请号：US16659738
申请日：2019-10-22
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：US11096182B2
公开(公告)日：2021-08-17
申请号：US16620649
申请日：2018-06-07
Inventor： Jae-Young Lee , Sung-Ik Park , Sun-Hyoung Kwon , Heung-Mook Kim , Nam-Ho Hur
Abstract: Disclosed herein are a gateway-signaling method for frequency/timing offsets and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a frequency/timing decision unit for determining a center frequency to which a frequency offset is applied using a carrier offset, which is identified using a timing and a management packet transmitted through a Studio-to-Transmitter Link (STL); and an RF signal generation unit for generating an RF signal to be transmitted, which corresponds to the center frequency.
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公开(公告)号：US11095323B2
公开(公告)日：2021-08-17
申请号：US16615940
申请日：2018-05-23
Inventor： Jae-Young Lee , Sung-Ik Park , Sun-Hyoung Kwon , Heung-Mook Kim , Nam-Ho Hur
Abstract: Disclosed herein are a gateway-signaling method for Multiple-Input Single-Output (MISO) operation and an apparatus for the same. An apparatus for transmitting a broadcast signal according to an embodiment of the present invention includes a predistortion unit for performing predistortion for decorrelating signals corresponding to transmitters using the number of transmitters used for MISO and a transmitter coefficient index that are identified using a timing and management packet transmitted through a Studio-to-Transmitter Link (STL), thereby generating a pre-distorted signal; and an RF signal generation unit for generating an RF transmission signal using the pre-distorted signal corresponding to the transmitter coefficient index.
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公开(公告)号：US11082728B2
公开(公告)日：2021-08-03
申请号：US16557528
申请日：2019-08-30
Inventor： Hyun-Jeong Yim , Jae-Young Lee , Sung-Ik Park , Heung-Mook Kim
IPC: H04N21/2362 , H04L12/24 , H04N21/434 , H04N21/2665
Abstract: Disclosed herein are a method and apparatus for providing and using a broadcast service. Multiple layers of contents may be provided over a broadcast network and a communication network. A terminal may acquire the multiple layers over the broadcast network and the communication network. When a specified layer cannot be acquired over the broadcast network, the terminal may acquire the specified layer over the communication network, using service-layer signaling information provided over the broadcast network. The service-layer signaling information may include information used to acquire the specified layer over the communication network.
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235.发明授权公开(公告)号：US10999004B2
公开(公告)日：2021-05-04
申请号：US16529502
申请日：2019-08-01
Inventor： Sung-Ik Park , Heung-Mook Kim , Sun-Hyoung Kwon , Nam-Ho Hur
IPC: H04L1/00 , H03M13/11 , H03M13/03 , H03M13/31 , H03M13/00 , H03M13/25 , H03M13/27 , H03M13/29 , H04L27/26
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. The second memory is initialized to 0. The processor generates the LDPC codeword by performing accumulation with respect to the second memory using information bits. The accumulation is performed at parity bit addresses that are updated using a sequence corresponding to a parity check matrix (PCM).
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Patent Agency Ranking
公开(公告)号：US10979079B2
公开(公告)日：2021-04-13
申请号：US16527485
申请日：2019-07-31
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 quadrature phase shift keying (QPSK) modulation.
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公开(公告)号：US10972131B2
公开(公告)日：2021-04-06
申请号：US16530723
申请日：2019-08-02
Inventor： Sung-Ik Park , Heung-Mook Kim , Sun-Hyoung Kwon , Nam-Ho Hur
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 2/15. 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).
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公开(公告)号：US10944433B2
公开(公告)日：2021-03-09
申请号：US16528939
申请日：2019-08-01
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 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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239.发明授权公开(公告)号：US10931798B2
公开(公告)日：2021-02-23
申请号：US16593809
申请日：2019-10-04
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：US10917448B2
公开(公告)日：2021-02-09
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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