公开(公告)号：US20170272294A1

公开(公告)日：2017-09-21

申请号：US15586771

申请日：2017-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyung KIM ,  Chulkyu MUN ,  Woosuk KO ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L27/26 ,  H04W72/00 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2655 ,  H04L27/2665 ,  H04W72/005

Abstract: A broadcast signal receiver includes a demodulator configured to perform Orthogonal Frequency Division Multiplexing (OFDM) demodulation on a received broadcast signal; a frame parser configured to derive service data by parsing a signal frame of the received broadcast signal based on a number of carriers of the signal frame; a decoder configured to perform error correction on the service data; and an output processor configured to receive the service data and output a data stream, wherein the number of carriers of the signal frame is determined by equation: NoC=NoC_max−k*Δ, the NoC being the number of carriers, the NoC_max being maximum number of carriers, the k being a reducing coefficient and the Δ being a control unit value, wherein the k ranges from 0 to 4 and the Δ is 96 for 8K Fast Fourier Transform (FFT), 192 for 16K FFT, 384 for 32K FFT.

公开(公告)号：US20170230125A1

公开(公告)日：2017-08-10

申请号：US15503130

申请日：2015-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Sejin OH ,  Woosuk KWON ,  Woosuk KO ,  Sungryong HONG

IPC: H04H60/06 ,  H04H60/82 ,  H04N5/92 ,  H04N21/233 ,  H04N21/234 ,  H04N21/61 ,  H04H20/33 ,  H04N21/2368

CPC classification number: H04N21/2362 ,  H04H60/07 ,  H04H60/73 ,  H04N21/2383 ,  H04N21/6332

Abstract: The present invention proposes a method for providing a broadcast service. The method for providing a broadcast service in a broadcast signal transmitter according to the present invention may comprise the steps of: encoding media data to a media stream; creating signaling information for signaling the media stream; multiplexing the encoded media stream and the signaling information; and transmitting a broadcast signal comprising the multiplexed media stream and the signaling information.

公开(公告)号：US20170222854A1

公开(公告)日：2017-08-03

申请号：US15485012

申请日：2017-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

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

CPC classification number: H04L27/265 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2608 ,  H04L27/263 ,  H04L27/2637 ,  H04L2001/0093

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：US20170201407A1

公开(公告)日：2017-07-13

申请号：US15473108

申请日：2017-03-29

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak SUH ,  Sangchul MOON ,  Jongwoong SHIN ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H03M13/11 ,  H03M13/27 ,  H04L1/00

CPC classification number: H04L27/2649 ,  H03M13/1102 ,  H03M13/2792 ,  H04L1/0009 ,  H04L1/0023 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/12

Abstract: A method is presented for receiving broadcast signals. The broadcast signals are received. The received broadcast signals are demodulated by an Orthogonal Frequency Division Multiplex (OFDM) scheme. A signal frame is parsed from the demodulated broadcast signals. Data in the parsed signal frame is bit interleaved. The bit deinterleaving includes block deinterleaving the data with each set of a number of bit groups. The number of bit groups is based on modulation type. When the modulation type is 16 Quadrature Amplitude Modulation (QAM), the number of bit groups is 4. The block deinterleaved data is group-wise deinterleaved by a unit of the bit group and parity deinterleaving parity bits of data in the group-wise deinterleaved data. The bit deinterleaved data is decoded.

公开(公告)号：US20170195157A1

公开(公告)日：2017-07-06

申请号：US15467134

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong CHOI ,  Woosuk KO ,  Sangchul MOON ,  Sungryong HONG

IPC: H04L27/26 ,  H04L27/38 ,  H04B7/0413 ,  H04L27/34

CPC classification number: H04L27/2649 ,  H04B7/0413 ,  H04B7/10 ,  H04L27/22 ,  H04L27/2627 ,  H04L27/3444 ,  H04L27/362 ,  H04L27/38 ,  H04W4/06

Abstract: A method is provided for receiving broadcast signals. The method includes receiving broadcast signals; demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme; Multi Input Multi Output (MIMO) processing the demodulated broadcast signals based on at least one of a phase-hoping matrix with a phase rotation angle and a rotation matrix with a rotation angle, wherein a value of the rotation angle depends on a modulation order and a code rate of transmitted data, demapping data in the MIMO processed broadcast signals; and decoding the demapped data based on the code rate.

公开(公告)号：US20170187781A1

公开(公告)日：2017-06-29

申请号：US15461201

申请日：2017-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Sejin OH ,  Woosuk KO ,  Sungryong HONG ,  Kyoungsoo MOON

IPC: H04L29/06 ,  H04L12/18 ,  H04B7/0413

CPC classification number: H04L65/80 ,  H04B7/0413 ,  H04H20/42 ,  H04H60/73 ,  H04L1/00 ,  H04L5/0023 ,  H04L12/1877 ,  H04L12/1886 ,  H04L65/4076 ,  H04L65/607 ,  H04L69/08 ,  H04L69/22 ,  H04L2212/00

Abstract: A broadcast signal transmission method according to an embodiment of the present invention includes: generating one or more first layer data units including first level signaling data and broadcast data for a broadcast service; generating one or more second layer data units including the one or more first layer data units and second level signaling data; and generating a broadcast signal including the one or more second layer data units.

公开(公告)号：US20170180778A1

公开(公告)日：2017-06-22

申请号：US15410267

申请日：2017-01-19

Applicant: LG ELECTRONICS INC.

Inventor： Jinwon LEE ,  Seungryul YANG ,  Seungjoo AN ,  Woosuk KO ,  Minsung KWAK ,  Kyoungsoo MOON ,  Sungryong HONG

IPC: H04N21/43 ,  H04N21/436 ,  H04N21/63

CPC classification number: H04N21/4302 ,  H04J11/00 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/4126 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/436 ,  H04N21/631 ,  H04N21/64322 ,  H04N21/64707 ,  H04N21/8456

Abstract: A broadcast reception apparatus comprises: a broadcast interface for receiving a service including a program, and signaling information, wherein the signaling information includes media time information of the program being reproduced; a companion screen interface for discovering a companion screen device; and a controller for operating the broadcast interface and the companion screen interface, wherein the controller includes a time synchronization service processor for generating service time information providing data related to a time synchronization between the program and a program being displayed on the companion screen device on the basis of the signaling information, and the companion screen interface transmits the service time information to the companion screen device.

公开(公告)号：US20170180763A1

公开(公告)日：2017-06-22

申请号：US15118370

申请日：2015-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinwon LEE ,  Kyoungsoo MOON ,  Seungjoo AN ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2381 ,  H04N21/488 ,  H04N21/236

CPC classification number: H04N21/2381 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/4882

Abstract: Provided is a broadcast reception device receiving a broadcast service interoperating with a companion device. The broadcast reception device includes: an IP communication unit establishing a pairing session with the companion device; a broadcast communication unit receiving first Non-Real Time (NRT) data signaling information signaling NRT data that is a content of an NRT service, on the basis of the broadcast service; and a control unit transmitting second NRT signaling data for the companion device to the companion device on the basis of the first NRT data signaling information.

公开(公告)号：US20170180761A1

公开(公告)日：2017-06-22

申请号：US15115567

申请日：2015-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Minsung KWAK ,  Seungryul YANG ,  Kyoungsoo MOON ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/2362 ,  H04N21/462 ,  H04N21/2389 ,  H04N21/434

CPC classification number: H04N21/2362 ,  H04N21/233 ,  H04N21/234 ,  H04N21/235 ,  H04N21/23892 ,  H04N21/258 ,  H04N21/26283 ,  H04N21/41 ,  H04N21/4345 ,  H04N21/439 ,  H04N21/44 ,  H04N21/45 ,  H04N21/462 ,  H04N21/472 ,  H04N21/47211 ,  H04N21/4821 ,  H04N21/4884 ,  H04N21/816

Abstract: The present invention provides a method for transmitting a broadcast signal. A method for transmitting a broadcast signal, according to one embodiment of the present invention, comprises the steps of: generating service guide information, which includes information for accessing a broadcast service, and content data, wherein the service guide information includes a service fragment which displays information related to the broadcast service; encoding the service guide information and the content data which have been generated; and transmitting the service guide information and the content data which have been encoded.

公开(公告)号：US20170180080A1

公开(公告)日：2017-06-22

申请号：US15449530

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoong SHIN ,  Jaehyung KIM ,  Woosuk KO ,  Jongseob BAEK ,  Sungryong HONG

IPC: H04L1/00 ,  H04L12/18 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H04B1/10 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0052 ,  H04L1/007 ,  H04L1/0075 ,  H04L1/04 ,  H04L5/0023 ,  H04L5/005 ,  H04L12/18 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L27/2649

Abstract: A broadcast signal receiver is provided. The broadcast signal receiver comprises a demodulator configured to demodulate a received broadcast signal, a frame parser configured to parse a signal frame of the demodulated broadcast signal, the signal frame comprising a preamble and Layered Division Multiplexing (LDM) data, and the preamble carrying signaling information, a time deinterleaver configured to time deinterleave the LDM data, a first demapping/decoding unit configured to obtain core layer data by demapping and Forward Error Correction (FEC)-decoding the LDM data, an interference removal unit configured to remove the core layer data from the LDM data and to output enhanced layer data, a second demapping/decoding unit configured to demap and FEC-decode the enhanced layer data, and an output processor configured to process at least one of the core layer data or the enhanced layer data and to output a data stream.