公开(公告)号：US20200220640A1

公开(公告)日：2020-07-09

申请号：US16781332

申请日：2020-02-04

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20190393893A1

公开(公告)日：2019-12-26

申请号：US16559496

申请日：2019-09-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Bo-Mi LIM ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H03M13/11 ,  H03M13/25 ,  H03M13/27

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.

公开(公告)号：US20190387035A1

公开(公告)日：2019-12-19

申请号：US16444095

申请日：2019-06-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  CLEVERLOGIC CO., LTD.

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).

公开(公告)号：US20190379402A1

公开(公告)日：2019-12-12

申请号：US16548189

申请日：2019-08-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H03M13/27

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.

公开(公告)号：US20190356336A1

公开(公告)日：2019-11-21

申请号：US16530723

申请日：2019-08-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Heung-Mook KIM ,  Sun-Hyoung KWON ,  Nam-Ho HUR

IPC: H03M13/11 ,  H04L1/00 ,  H03M13/03 ,  G06F11/10 ,  H03M13/00

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).

公开(公告)号：US20190334551A1

公开(公告)日：2019-10-31

申请号：US16506486

申请日：2019-07-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H03M13/11 ,  H04L1/00 ,  H03M13/00 ,  H03M13/25 ,  H04L27/34 ,  H03M13/27

Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.

公开(公告)号：US20190327445A1

公开(公告)日：2019-10-24

申请号：US16460773

申请日：2019-07-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Young LEE ,  Sung-Ik PARK ,  Sun-Hyoung KWON ,  Heung-Mook KIM

IPC: H04N7/081 ,  H04N21/2383 ,  H04N21/2343 ,  H04N19/187 ,  H04N3/28 ,  H04N5/445 ,  H04L27/26 ,  H04L1/00 ,  H04H20/42 ,  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.

公开(公告)号：US20190327121A1

公开(公告)日：2019-10-24

申请号：US16460189

申请日：2019-07-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae-Young LEE ,  Sun-Hyoung KWON ,  Sung-Ik PARK ,  Bo-Mi LIM ,  Heung-Mook KIM

IPC: H04L27/26 ,  H04L1/00 ,  H03M13/11 ,  H03M13/25 ,  H03M13/35 ,  H03M13/29 ,  H03M13/27

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 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 corresponding to the time interleaver, the time interleaver uses one of time interleaver groups, and the time interleaver performs the interleaving by using one of a plurality of operation modes.

公开(公告)号：US20190253079A1

公开(公告)日：2019-08-15

申请号：US16395901

申请日：2019-04-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM

IPC: H03M13/15 ,  H03M13/11 ,  H03M13/27 ,  H03M13/00

Abstract: A parity interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.

公开(公告)号：US20190150145A1

公开(公告)日：2019-05-16

申请号：US16243831

申请日：2019-01-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae-Young LEE ,  Sung-Ik PARK ,  Sun-Hyoung KWON ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H04W72/04 ,  H04W52/04 ,  H04L29/06 ,  H04L5/22 ,  H04L1/00 ,  H04W52/34 ,  H04L27/34 ,  H04L27/26 ,  H04J11/00

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.