公开(公告)号：US10111133B2

公开(公告)日：2018-10-23

申请号：US15223408

申请日：2016-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Hotaek Hong ,  Sangchul Moon ,  Joonhui Lee ,  Woosuk Ko

IPC: H03M13/00 ,  H04W28/06 ,  H04L29/08 ,  H04N21/2362 ,  H04N21/2389 ,  H04N21/643 ,  H04W72/00 ,  H04B7/0413 ,  H04L5/00 ,  H04L12/741 ,  H04L12/935 ,  H04L27/12 ,  H04L27/26 ,  H04L29/06 ,  H04W72/04 ,  H04H60/07 ,  H04L1/00

Abstract: Disclosed is a broadcast signal transmitting apparatus, a broadcast signal receiving apparatus, and a broadcast signal transceiving method in a broadcast signal transceiving apparatus. The broadcast signal transmitting method comprises the following steps: compressing the headers of data packets of an IP stream identified by IP address information, wherein the compressed data packets include a first packet, the header of which contains static field information, a second packet, the header of which contains dynamic field information, and a third packet, the header of which contains the compressed static field information and/or the compressed dynamic field information; signaling IP-PLP mapping information for mapping the IP stream and a component PLP for transmitting the IP stream, the IP stream compression information, and the header information of the first packet to L2 signaling information; and transmitting the header information of the second and third packets via the component PLP, and transmitting the L2 signaling information via a common PLP.

公开(公告)号：US10110408B2

公开(公告)日：2018-10-23

申请号：US15891021

申请日：2018-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H03K9/00 ,  H03D1/04 ,  H04B1/38 ,  H04L27/26 ,  H04H60/73 ,  H04L1/00 ,  H04B7/0413 ,  H04H60/11

Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, wherein the signal frame includes service data corresponding to each of a plurality of physical paths, a time deinterleaver to time deinterleave service data in each physical path by a TI (Time Interleaving) block, wherein the time deinterleaver further performs inserting at least one virtual FEC block into at least one TI block of the service data, wherein each TI block includes a variable number of FEC blocks of the service data, wherein a number of the at least one virtual FEC block is defined based on a maximum number of FEC blocks of a TI block and a decoder to decode the time deinterleaved service data.

公开(公告)号：US10103915B2

公开(公告)日：2018-10-16

申请号：US15656796

申请日：2017-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung Kim ,  Woosuk Ko ,  Chulkyu Mun ,  Sungryong Hong

IPC: H04L27/22 ,  H04L27/26 ,  H04L1/00

Abstract: 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：US10097294B2

公开(公告)日：2018-10-09

申请号：US14913934

申请日：2014-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon Lee ,  Sejin Oh ,  Woosuk Kwon ,  Kyoungsoo Moon ,  Woosuk Ko ,  Sungryong Hong

IPC: H04H20/71 ,  H04N21/236 ,  H04L29/08 ,  H04N21/2362 ,  H04N21/84 ,  H04L29/06 ,  H04N21/235 ,  H04N21/61 ,  H04N19/89

Abstract: The broadcast signal transmitting apparatus includes a signaling encoder for generating signaling information indicating whether a broadcast signal including multimedia content is transmitted in real time using a broadcast network, an internal structure generator for generating at least one object internal structure obtained by dividing a file included in the multimedia content into an independently encoded or decoded data unit, a packet information generator for generating packet information including metadata for identification of the object internal structure when the signaling information indicates that the multimedia content is transmitted in real time, and a transmitter for transmitting a broadcast signal including the object internal structure and the packet information. Accordingly, the apparatus can reduce a total time needed when multimedia content is acquired and then displayed for a user.

公开(公告)号：US10090966B2

公开(公告)日：2018-10-02

申请号：US14808754

申请日：2015-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinwoo Kim ,  Jongwoong Shin ,  Woosuk Ko ,  Sungryong Hong

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

Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises an receiver to receiving the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, wherein the signal frame includes service data and signaling data, a decoder to decode the signaling data based on a mode of the signaling data, wherein the signaling data is categorized to plural modes based on a length of the signaling data and modcod information and a decoder to decode the service data.

公开(公告)号：US10057101B2

公开(公告)日：2018-08-21

申请号：US15496973

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong ,  Woochan Kim

IPC: H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04N21/236 ,  H04L27/36 ,  H04N21/234

CPC classification number: H04L27/2627 ,  H04J11/00 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/0625 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/365 ,  H04N21/234 ,  H04N21/236

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US10044545B2

公开(公告)日：2018-08-07

申请号：US15864470

申请日：2018-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong

IPC: H04L27/06 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00

Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to perform demodulation on the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frequency de-interleaver to frequency de-interleave the demodulated broadcast signals by using a different interleaving sequence, wherein the different interleaving sequence is used for data corresponding to an OFDM symbol pair or data corresponding to an OFDM symbol according to an FFT size of the demodulation, a frame parser to parse at least one signal frame from the frequency de-interleaved broadcast signals and a decoder to decode service data in the parsed at least one signal frame.

公开(公告)号：US10033479B2

公开(公告)日：2018-07-24

申请号：US14839172

申请日：2015-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Jaeho Hwang ,  Woosuk Ko ,  Sungryong Hong

IPC: H04J3/24 ,  H04L1/00 ,  H04L5/00 ,  H04L12/18 ,  H04L27/26 ,  H04L29/06 ,  H04H20/00 ,  H04H20/33

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an input formatter to input format service data, an encoder to encode the input formatted service data, a frame builder to build at least one signal frame including the encoded service data, wherein the at least one signal frame includes a plurality of OFDM symbols, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

公开(公告)号：US10027999B2

公开(公告)日：2018-07-17

申请号：US15634532

申请日：2017-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu Mun ,  Jaehyung Kim ,  Hochul Jung ,  Woosuk Ko ,  Sungryong Hong

IPC: H04N7/16 ,  H04N21/2383 ,  H04N21/2389 ,  H04H20/33 ,  H04L27/26 ,  H04B7/0413

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data corresponding to each of data pipes; encoding signaling data; building at least one signal frame including the encoded data and the encoded signaling data; modulating data of the at least one signal frame by an Orthogonal Frequency Division Multiplex (OFDM) scheme; performing Peak to Average Power Ratio (PAPR) reduction for the modulated data using a tone reservation algorithm based on a Fast Fourier Transform (FFT) size; and transmitting time domain broadcast signals carrying the modulated data of the at least one signal frame, wherein the at least one signal frame comprises signaling symbols and data symbols, wherein a set of carriers in the signaling symbols and a set of carriers in the data symbols are reserved for the PAPR reduction, respectively.

公开(公告)号：US10027518B2

公开(公告)日：2018-07-17

申请号：US14524624

申请日：2014-10-27

Applicant: LG Electronics Inc.

Inventor： Hotaek Hong ,  Woosuk Ko ,  Sangchul Moon ,  Jeonghwan Park

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0413 ,  H04L1/06 ,  H04N19/30

Abstract: According to an aspect of the present invention, a method of transmitting service data may include encoding service data, mapping the encoded service data, MIMO encoding the mapped data using a MIMO matrix, time-interleaving the MIMO encoded data, building a signal frame including and signaling data and the time-interleaved data, frequency interleaving the time-interleaved data in frequency domain, modulating the signal frame including the frequency-interleaved data by OFDM (Orthogonal Frequency Division Multiplex) scheme and transmitting the modulated signal frame.