公开(公告)号：US20190199758A1

公开(公告)日：2019-06-27

申请号：US16196391

申请日：2018-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/06 ,  H04N21/845 ,  H04L29/08 ,  H04N21/482 ,  H04N21/462 ,  H04N21/434 ,  H04N21/2362 ,  H04L29/12

CPC classification number: H04L65/1066 ,  H04L61/2007 ,  H04L65/4076 ,  H04L65/608 ,  H04L67/02 ,  H04L67/14 ,  H04L67/30 ,  H04L69/22 ,  H04L69/326 ,  H04N21/234 ,  H04N21/235 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/4345 ,  H04N21/4622 ,  H04N21/4825 ,  H04N21/64322 ,  H04N21/8456

Abstract: An apparatus for transmitting a broadcast signal, includes a processor to generate a content component for a broadcast service, service signaling information including object flow information for an object flow which carries the content component and signaling information for listing broadcast services, the object flow information including format information representing a payload format of an object, and the service signaling information being carried by transport packets; and a transmitter to transmit the broadcast signal including the signaling information, the service signaling information and the content component.

公开(公告)号：US20190089487A1

公开(公告)日：2019-03-21

申请号：US16197303

申请日：2018-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L1/00 ,  H04L29/06 ,  H04L27/26 ,  H04B7/0456 ,  H04L5/00

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding, by an encoder, PLP(Physical Layer Pipe) data; time interleaving, by a time interleaver, the encoded PLP data; frame mapping, by a framer, the time interleaved PLP data onto at least one signal frames; frequency interleaving, by a frequency interleaver, data in the at least one signal frames; and waveform modulating, by a waveform module, the frequency interleaved data in the at least one signal frame and transmitting, by the waveform module, broadcast signals having the modulated data, wherein the frequency interleaving is conducted according to an interleaving mode, wherein the interleaving mode is determined based on a FFT (Fast Fourier Transform) size.

公开(公告)号：US20190036755A1

公开(公告)日：2019-01-31

申请号：US16135878

申请日：2018-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04H60/73 ,  H04B7/0413 ,  H04L1/00

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 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：US20190020707A1

公开(公告)日：2019-01-17

申请号：US16117874

申请日：2018-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Jangwon LEE ,  Minsung KWAK ,  Woosuk KO ,  Kyoungsoo MOON ,  Sungryong HONG

IPC: H04L29/06

CPC classification number: H04L65/80 ,  H04L65/4076

Abstract: A method for processing a broadcast signal according to an embodiment of the present invention includes encoding data in one or more packets of a first protocol and data in one or more packets of a second protocol, wherein the one or more packets of a first protocol carry one or more service components of a first broadcast service, and a first service layer signaling information describing the first broadcast service of the one or more service components, and wherein one or more packets of a second protocol carry one or more service components of a second broadcast service, and a second service layer signaling information describing the second broadcast service of the one or more service components, the first protocol being distinct from the second protocol; processing the encoded data; and transmitting the broadcast signals carrying the processed data.

公开(公告)号：US20180310036A1

公开(公告)日：2018-10-25

申请号：US16011038

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Chulkyu MUN ,  Jaehyung KIM ,  Hochul JUNG ,  Woosuk KO ,  Sungryong HONG

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

CPC classification number: H04N21/2383 ,  H04B7/0413 ,  H04H20/33 ,  H04L27/2602 ,  H04L27/2618 ,  H04N21/2389

Abstract: A method for transmitting broadcast signals by an apparatus for transmitting broadcast signals, the method includes encoding data which is carried by a Data Pipe, DP; bit interleaving the encoded data; Multiple Input Multiple Output, MIMO, processing the bit interleaved data; time interleaving the MIMO processed data; encoding signaling data; building at least one signal frame including signaling symbols having the encoded signaling data and data symbols having the time interleaved 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. In addition, sets of reserved carriers for the PAPR reduction are used in the signaling symbols and the data symbols; and transmitting broadcast signals including the PAPR reduction performed data, further a set of reserved carriers for the signaling symbols is different from a set of reserved carriers for the data symbols.

公开(公告)号：US20180295399A1

公开(公告)日：2018-10-11

申请号：US16003811

申请日：2018-06-08

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk KWON ,  Jangwon LEE ,  Minsung KWAK ,  Kyoungsoo MOON ,  Woosuk KO ,  Sungryong HONG

IPC: H04N21/236 ,  H04N21/643 ,  H04N21/2362 ,  H04N21/61

CPC classification number: H04N21/23605 ,  H04N21/2362 ,  H04N21/615 ,  H04N21/64322

Abstract: A method for receiving a broadcast signal, performed by an apparatus for receiving the broadcast signal includes receiving the broadcast signal, wherein the broadcast signal includes one or more link layer packets, wherein the one or more link layer packets includes broadcast data for a broadcast service, service level signaling information describing characteristics of the broadcast service, and low level signaling information including information which is used to build a basic service listing, wherein the low level signaling information further includes service level signaling protocol information for indicating a type of delivery protocol of the service level signaling information, wherein the type of the delivery protocol corresponds to a Moving Picture Experts Group (MPEG) media transport (MMT) protocol or a real-time object delivery over unidirectional transport (ROUTE) protocol, and wherein the low level signaling information further includes destination Internet Protocol (IP) address for the service level signaling information, destination User Datagram Protocol (UDP) port number for the service level signaling information, and source IP address for the service level signaling information, parsing the low level signaling information, and parsing the service level signaling information.

公开(公告)号：US20180248732A1

公开(公告)日：2018-08-30

申请号：US15967237

申请日：2018-04-30

Applicant: LG Electronics Inc.

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

IPC: H04L27/26 ,  H04H20/33 ,  H04B7/0413 ,  H04B7/08 ,  H04B7/10 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04L27/2627 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0682 ,  H04B7/08 ,  H04B7/10 ,  H04H20/33 ,  H04L1/0045 ,  H04L1/06 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2647 ,  H04L27/2649

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals, the method comprises encoding service data, encoding signaling data, MIMO (Multiple-Input and Multiple-Output) precoding the encoded service data, building at least one signal frame including the MIMO precoded service data and the encoded signaling data, modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and transmitting the broadcast signals having the modulated data.

公开(公告)号：US20180242029A1

公开(公告)日：2018-08-23

申请号：US15890929

申请日：2018-02-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04N21/236 ,  H04N21/2383 ,  H04N21/643 ,  H04L12/18 ,  H04N21/2385 ,  H04W4/06

CPC classification number: H04N21/23605 ,  H04L12/1877 ,  H04L12/1886 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/64322 ,  H04W4/06

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, generating input packets including broadcast content data; generating a link layer packet by using the generated input packets, wherein the link layer packet includes a link layer header and a link layer payload including the generated input packets, wherein the link layer header includes a count field indicating number of the input packets included in the link layer payload, wherein the link layer header further includes a length part, wherein the length part includes a plurality of length fields as many as that the count field indicates, wherein each of the length fields indicates length of the each input packets included in the link layer payload; generating a broadcast signal including the generated link layer packet; and transmitting the broadcast signal.

公开(公告)号：US20180167253A1

公开(公告)日：2018-06-14

申请号：US15891021

申请日：2018-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG

IPC: H04L27/26 ,  H04L1/00 ,  H04H60/73 ,  H04B7/0413 ,  H04H60/11

CPC classification number: H04B7/0413 ,  H04H60/11 ,  H04H60/73 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0075 ,  H04L27/2626 ,  H04L27/2649 ,  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 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：US20180159644A1

公开(公告)日：2018-06-07

申请号：US15885274

申请日：2018-01-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04H20/59 ,  H04N21/235 ,  H04N21/27 ,  H04N21/43 ,  H04L29/06 ,  H04N21/858

Abstract: A method for providing a broadcast service by a primary device (PD) includes performing a discovery process with a companion device (CD) application executed in a CD, wherein the discovery process includes receiving a device description request from the CD application, transmitting a first response message, receiving, from the CD application, an application information request destined for a first URL and transmitting a second response message, wherein a header of the first response message includes the first URL, and the second response message includes a second URL used as a Websocket endpoint of the PD; establishing a Websocket connection between a Websocket server and the CD application using the second URL; receiving a request message for media timeline information from the CD through the Websocket connection; and delivering a notification message to the CD through the Websocket connection.