公开(公告)号：US10277445B2

公开(公告)日：2019-04-30

申请号：US16175365

申请日：2018-10-30

申请人： LG ELECTRONICS INC.

发明人： Jinyong Choi ,  Woosuk Ko ,  Sangchul Moon ,  Sungryong Hong

IPC分类号： H04L27/26 ,  H04L27/38 ,  H04L27/34 ,  H04L27/22 ,  H04L27/36 ,  H04B7/0413 ,  H04W4/06 ,  H04B7/10

摘要： A method for receiving broadcast signals in a receiver, includes receiving the broadcast signals carrying service data, demodulating the broadcast signals by an Orthogonal Frequency Division Multiplexing (OFDM) scheme, Multiple-Input Multiple-Output (MIMO) processing the broadcast signals based on rotation matrices with rotation angles, wherein values of the rotation angles depend on modulation orders and code rates of the service data, demapping data in the broadcast signals and decoding the data based on the code rates, wherein when a modulation order is Quadrature Phase Shift Keying (QPSK) and the code rates are 2/15, 3/15, 4/15, and 5/15, the values of the rotation angles are zero (0) degrees, and when a modulation order is QPSK and the code rates are 6/15, 7/15, 8/15, 9/15, 10/15, 11/15, 12/15 and 13/15, the values of the rotation angles are non-zero (0) degrees.

公开(公告)号：US10264300B2

公开(公告)日：2019-04-16

申请号：US15696479

申请日：2017-09-06

申请人： LG ELECTRONICS INC.

发明人： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC分类号： H04N21/236 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/434 ,  H04N21/438 ,  H04N21/61 ,  H04N21/81 ,  H04L1/00

摘要： A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding service data according to a 16200 bit codeword and a 11/15 code rate based on addresses in a parity check matrix, wherein the encoded service data comprises information bits and parity bits; building at least one signal frame by mapping the encoded service data; modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing (OFDM) scheme; and transmitting broadcast signals having the modulated data, wherein the encoding of the service data comprises: initializing the parity bits, adding the information bits to the parity bits of which addresses are based on values of entries in each row of the parity check matrix, wherein a row of the parity check matrix corresponds to a 360 bit group of the information bits.

公开(公告)号：US10237590B2

公开(公告)日：2019-03-19

申请号：US15730461

申请日：2017-10-11

申请人： LG ELECTRONICS INC.

发明人： Jongseob Baek ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong

IPC分类号： H04N21/234 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/434 ,  H04N21/438 ,  H04N21/6379 ,  H04N21/85 ,  H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H03M13/29 ,  H04L1/00 ,  H04L5/00 ,  H04N7/08

摘要： A method is provided for transmitting broadcast signals. Service data is encoded. The encoded service data is mapped to symbols onto constellations. Data cells are frequency interleaved in a symbol among the symbols in at least one frame unit using an interleaving sequence. The interleaving sequence is generated based on a main interleaving-sequence and a symbol offset value. The interleaving sequence is generated by operating the main interleaving-sequence with the symbol offset value. The data cells are included in the symbol with a symbol index and a frame unit with a frame unit index. The frequency interleaving of the data cells operates on a frame basis. The frequency interleaving of the data cells is reset when a first frame unit is changed to a second frame unit. Data is modulated in the at least one frame unit by an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The broadcast signals carrying the modulated data are transmitted.

公开(公告)号：US10212461B2

公开(公告)日：2019-02-19

申请号：US15746323

申请日：2016-07-21

申请人： LG Electronics Inc.

发明人： Minsung Kwak ,  Seungryul Yang ,  Woosuk Ko ,  Jangwon Lee ,  Kyoungsoo Moon ,  Sungryong Hong

IPC分类号： H04N21/236 ,  H04N21/2362 ,  H04N21/438 ,  H04N21/4385 ,  H04N21/858 ,  H04N21/61

摘要： A method for transmitting a broadcast signal is disclosed. The method for transmitting a broadcast signal according to an embodiment of the present invention includes performing delivery layer processing of a broadcast service data and signaling information for the broadcast service data, performing UDP/IP encapsulation of a broadcast service data and signaling information for the broadcast service data and performing physical layer processing of a broadcast service data and signaling information for the broadcast service data.

公开(公告)号：US10158510B2

公开(公告)日：2018-12-18

申请号：US15466471

申请日：2017-03-22

申请人： LG ELECTRONICS INC.

发明人： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong ,  Jongwoong Shin ,  Jinwoo Kim

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04L27/26 ,  H04B7/0413 ,  H04L5/00

摘要： A method and an apparatus for transmitting broadcast signals thereof are disclosed. An apparatus for transmitting broadcast signals comprises an encoder for encoding service data corresponding to each of a plurality of data transmission path, wherein each of the data transmission path carries at least one service component, a mapper for mapping the encoded service data onto constellations, an encoder for encoding physical signaling data, a frame builder for building at least one signal frame including preamble data, the encoded physical signaling data, the mapped service data, wherein the preamble data is located before the encoded physical signaling data and the encoded physical signaling data is located before the mapped service data, a modulator for modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals carrying the at least one modulated signal frame, wherein the broadcast signals includes channel information data, wherein the channel information data includes binding information between the service data and the data transmission path.

公开(公告)号：US10158452B2

公开(公告)日：2018-12-18

申请号：US15636230

申请日：2017-06-28

申请人： LG Electronics Inc.

发明人： Jinwoo Kim ,  Jongwoong Shin ,  Woosuk Ko ,  Sungryong Hong

IPC分类号： H04L1/00 ,  H04L27/26 ,  H04L12/18 ,  H04L5/00 ,  H04L29/06 ,  H03M13/25 ,  H03M13/27 ,  H03M13/29 ,  H03M13/11 ,  H03M13/15 ,  H03M13/35

摘要： A method is provided for transmitting broadcast signals. The method includes encoding, by an encoder, service data, encoding, by a signaling encoder, signaling data based on modes of the signaling data, wherein the signaling data is categorized into each mode representing a Low Density Parity Check (LDPC) code rate and a modulation order for the signaling data, building, by a frame builder, at least one signal frame including the encoded service data in at least one data symbol and the encoded signaling data in at least one signaling symbol, modulating, by a modulator, data in the at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme, and transmitting, by a transmitter, the broadcast signals carrying the modulated data in the at least one signal frame. One of the modes for the signaling data represents a 6/15 LDPC code rate and a Quadrature Phase Shift Keying (QPSK) modulation.

公开(公告)号：US10158449B2

公开(公告)日：2018-12-18

申请号：US15900280

申请日：2018-02-20

申请人： LG ELECTRONICS INC.

发明人： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC分类号： H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04L27/26 ,  H04L29/06 ,  H04H20/00 ,  H04H20/33 ,  H04H20/42

摘要： A method and apparatus for receiving broadcast signals are discussed. The method includes receiving the broadcast signals; demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme; obtaining broadcast data from a signal frame in the demodulated broadcast signals, wherein the broadcast data includes video data or audio data, and the broadcast data is carried by only a Data Pipe (DP); decoding the broadcast data; and output-processing the decoded broadcast data to output a data packet, wherein the data packet includes a Transport Stream (TS) packet, wherein a header of the data packet includes first information indicating whether a header deletion is performed in the TS packet, wherein the header of the data packet further includes second information indicating whether a null packet deletion is performed, and wherein when the second information is not a zero value, the null packet is deleted prior to the data packet.

公开(公告)号：US10135657B2

公开(公告)日：2018-11-20

申请号：US15676325

申请日：2017-08-14

申请人： LG ELECTRONICS INC.

发明人： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC分类号： H04L5/12 ,  H04L23/02 ,  H04L27/26 ,  H04B7/0413 ,  H04H20/57 ,  H04H20/72 ,  H04H60/07 ,  H04H60/91 ,  H04N21/61 ,  H04N21/2383 ,  H04L1/00

摘要： A broadcast signal receiver is disclosed. A broadcast signal receiver according to an embodiment of the present invention comprises a synchronization & demodulation module performing signal detection and OFDM demodulation on a received broadcast signal; a frame parsing & deinterleaving module performing parsing and deinterleaving of a signal frame of the broadcast signal; a demapping & decoding module performing conversion of data of at least one Physical Layer Pipe (PLP) of the broadcast signal into the bit domain and FEC decoding of the converted PLP data; and an output processing module outputting a data stream by receiving the at least one PLP data.

公开(公告)号：US10129061B2

公开(公告)日：2018-11-13

申请号：US15673058

申请日：2017-08-09

申请人： LG ELECTRONICS INC.

发明人： Jaehyung Kim ,  Woosuk Ko ,  Chulkyu Mun ,  Sungryong Hong

IPC分类号： H04L27/26 ,  H04L1/00

摘要： A broadcast signal transmitter is disclosed. A broadcast signal transmitter according to an embodiment of the present invention comprises an input formatting module performing baseband formatting and outputting at least one Physical Layer Pipe (PLP) data; a BICM module error-correction processing the PLP data; a framing & interleaving module interleaving the PLP data and generating a signal frame; and a waveform generating module inserting a preamble into the signal frame and generating a broadcast signal by performing OFDM modulation.

公开(公告)号：US10103920B2

公开(公告)日：2018-10-16

申请号：US15628435

申请日：2017-06-20

申请人： LG Electronics Inc.

发明人： Sangchul Moon ,  Woosuk Ko ,  Sungryong Hong ,  Jinwoo Kim ,  Jongwoong Shin

IPC分类号： H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04H20/30 ,  H04N21/434 ,  H04N21/2383 ,  H04N21/2362 ,  H03M13/00 ,  H04N21/438

摘要： The present invention provides an apparatus of transmitting broadcast signals, the apparatus including, an encoder for encoding service data, a frame builder for building at least one signal frame by mapping the encoded service data, a modulator for modulating data in the built at least one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.