公开(公告)号：US20240064117A1

公开(公告)日：2024-02-22

申请号：US18225166

申请日：2023-07-24

Applicant: Realtek Semiconductor Corp.

Inventor： Chun-Yi Chen

IPC: H04L49/9047 ,  H04L65/752 ,  H04N21/462 ,  H04N21/44 ,  H04N21/438 ,  H04N21/239

CPC classification number: H04L49/9047 ,  H04L65/752 ,  H04N21/4622 ,  H04N21/44004 ,  H04N21/4381 ,  H04N21/2393

Abstract: A signal compensation device includes a first receiving circuit, a second receiving circuit, a first buffer, a second buffer, a third buffer, and a processing circuit. The first receiving circuit receives a first video signal from a first video source. The second receiving circuit receives a second video signal from a second video source, wherein both the first video signal and the second video signal correspond to a same program. The first buffer stores a first transport stream (TS) packet group corresponding to the first video signal. The second buffer stores a second TS packet group corresponding to the second video signal. The processing circuit dynamically stores a first TS packet of the first TS packet group or a second TS packet of the second TS packet group to the third buffer according to a predetermined source in response to TS packet status.

公开(公告)号：US11689752B2

公开(公告)日：2023-06-27

申请号：US17196706

申请日：2021-03-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04N21/2362 ,  H04L27/26 ,  H04N21/236 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/414 ,  H04N21/434 ,  H04N21/438 ,  H04N21/61 ,  H03M13/11 ,  H03M13/27 ,  H03M13/00 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04N21/2362 ,  H03M13/1148 ,  H03M13/2792 ,  H03M13/616 ,  H04B7/0456 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/2601 ,  H04L27/2627 ,  H04L27/2649 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/23614 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

Abstract: 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 lease one signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US11665384B2

公开(公告)日：2023-05-30

申请号：US17665859

申请日：2022-02-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung-Mo Park ,  Sung-Oh Hwang ,  Sung-Ryeul Rhyu ,  Jae-Yeon Song

IPC: H04N21/236 ,  H04N21/434 ,  H04N21/2381 ,  H04N21/438 ,  H04N21/643 ,  H04N21/854

CPC classification number: H04N21/23614 ,  H04N21/2381 ,  H04N21/4343 ,  H04N21/4348 ,  H04N21/4381 ,  H04N21/64322 ,  H04N21/85406

Abstract: A method for transmitting media data in a Moving Picture Experts Group (MPEG) Media Transport (MMT) system is provided. The method includes receiving a Media Processing Unit (MPU) fragmented into one or more Media Fragment Units (MFUs), generating one or more multimedia data packets each including a packet header and a payload, based on the MPU, and transmitting the one or more multimedia data packets to a terminal. A payload header included in the payload includes identification information indicating an MPU to which at least one MPU included in the payload belongs, and a counter indicating the number of the at least one MPU.

公开(公告)号：US20190037262A1

公开(公告)日：2019-01-31

申请号：US16150030

申请日：2018-10-02

Applicant: LG ELECTRONICS INC.

Inventor： Sejin Oh ,  Kyoungsoo Moon

IPC: H04N21/2665 ,  H04N21/438 ,  H04N21/643 ,  H04N21/236 ,  H04N21/426 ,  H04N21/434 ,  H04N21/854 ,  H04N21/462 ,  H04N21/61

CPC classification number: H04N21/2665 ,  H04N21/23605 ,  H04N21/42638 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4622 ,  H04N21/6112 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/85406

Abstract: The present invention relates to a device for receiving a hybrid broadcast service and a method for transmitting the same. The device for receiving a hybrid broadcast service, according to one embodiment of the present invention, comprises: a first reception unit for receiving a first broadcast signal transmitted through a first network; a second reception unit for receiving a second broadcast signal transmitted through a second network, wherein the broadcast signal includes a service information table; a signaling information processing unit for extracting the service information table from the broadcast signal, wherein the service information table includes a component identifier descriptor for signaling information for identifying each of a plurality of components constituting one broadcast service, the component identifier descriptor including identification information; and an audio/video processing unit for acquiring the broadcast service including the plurality of components by using the component identification information, and decoding and reproducing the acquired broadcast service.

公开(公告)号：US10063674B2

公开(公告)日：2018-08-28

申请号：US15112011

申请日：2015-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Sejin Oh ,  Kyoungsoo Moon

IPC: H04L29/08 ,  H04L29/06 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/414 ,  H04N21/434 ,  H04N21/435 ,  H04N21/438 ,  H04N21/61 ,  H04N21/643

CPC classification number: H04L69/324 ,  H04L69/04 ,  H04L69/14 ,  H04L2212/00 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4381 ,  H04N21/6112 ,  H04N21/6131 ,  H04N21/6143 ,  H04N21/64322 ,  Y02D50/30

Abstract: A method and apparatus for transmitting and receiving a broadcast signal including a robust header compression (RoHC) packet stream are disclosed. The broadcast signal transmitting method includes compressing a header of an IP packet included in an IP packet stream to output an RoHC (Robust Header Compression) packet stream, generating a signaling packet including information of at least one RoHC packets included the RoHC packet stream, wherein the signaling packet includes a signaling packet header and a signaling packet payload, wherein the signaling packet header includes signaling information that is included in the signaling packet payload, transporting the signaling packet through a first channel and transporting the RoHC packet stream through a second channel.

公开(公告)号：US10063673B2

公开(公告)日：2018-08-28

申请号：US14916506

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Woosuk Kwon ,  Kyoungsoo Moon ,  Minsung Kwak

IPC: H04N21/235 ,  H04N21/2362 ,  H04N21/43 ,  H04L29/06 ,  H04L29/08 ,  H04N21/236 ,  H04N21/472 ,  H04L12/741 ,  H04N21/2381 ,  H04N21/434 ,  H04N21/438 ,  H04N21/643

CPC classification number: H04L69/324 ,  H04L45/74 ,  H04L69/22 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/434 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/472 ,  H04N21/64322

Abstract: Methods and apparatuses for transmitting and receiving a broadcast signal are disclosed. The broadcast signal transmission method includes generating a plurality of input packets including broadcast data, generating at least one link layer packet using the generated input packets, generating a broadcast signal including the generated at least one link layer packet, and transmitting the generated broadcast signal.

公开(公告)号：US20180234111A1

公开(公告)日：2018-08-16

申请号：US15953666

申请日：2018-04-16

Applicant: Coherent Logix, Incorporated

Inventor： Kevin A. Shelby ,  Peter J. Nysen ,  Michael B. Doerr

IPC: H03M13/05 ,  H04H60/07 ,  H04N21/438 ,  H03M13/00 ,  H03M13/29 ,  H04N21/61 ,  H04N21/2381 ,  H04H20/95 ,  H04N21/6437 ,  H04L29/06 ,  H04N21/2383 ,  H04N21/414 ,  H03M13/27 ,  H03M13/11

CPC classification number: H03M13/05 ,  H03M13/1102 ,  H03M13/2732 ,  H03M13/29 ,  H03M13/2906 ,  H03M13/2909 ,  H03M13/2936 ,  H03M13/2957 ,  H03M13/6583 ,  H04H20/95 ,  H04H60/07 ,  H04L65/4076 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131 ,  H04N21/6437

Abstract: Wireless transport of multiple service versions of a transport framework. First and second information may be processed for transmission, respectively, according to first and second service versions of a transport framework. The first and second information may be encoded using a first type of error correction coding; after processing, the processed first information may include error correction coding according to the first type of error correction coding, while the processed second information may remain uncoded according to the first type of error correction coding. Control information may be generated indicating that the second information remains uncoded according to the first type of error correction coding, which may signal to receivers that the second information is processed according to the second service version of the transport framework. Packets including the processed first information, the processed second information, and the control information may be generated and transmitted in a wireless manner.

公开(公告)号：US09986287B2

公开(公告)日：2018-05-29

申请号：US14313980

申请日：2014-06-24

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： Birgit Bartel-Kurz ,  Stefan Doehla ,  Markus Prosch

IPC: H04N21/4623 ,  H04N21/4405 ,  H04N21/2362 ,  H04N21/266 ,  H04N21/236 ,  H04H60/15 ,  H04N21/647 ,  H04N21/438 ,  H04N21/4385 ,  H04N21/442 ,  H04N21/4627 ,  H04N21/8352

CPC classification number: H04N21/4405 ,  H04H60/15 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/266 ,  H04N21/26606 ,  H04N21/4381 ,  H04N21/43853 ,  H04N21/442 ,  H04N21/4623 ,  H04N21/4627 ,  H04N21/647 ,  H04N21/8352

Abstract: A transport stream provider for providing a plurality of transport stream packets describing digital media information is configured to provide a transport stream packet of a first packet type including a program association table and key information for decrypting encrypted media information. The program association table contains an association between a program No. and a packet type identifier of a further transport stream packet of a second packet type. The transport stream provider is configured to provide a transport stream packet of the second packet type in such a manner that the transport stream packet of the second packet type contains a reference to packet type identifiers of transport stream payload data packets which describe contents of different content types of the digital media information.

公开(公告)号：US20180123663A1

公开(公告)日：2018-05-03

申请号：US15799480

申请日：2017-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Sangchul MOON ,  Woosuk KO ,  Sungryong HONG ,  Jinwoo KIM ,  Jongwoong SHIN

IPC: H04B7/04 ,  H04N21/61 ,  H04N21/438 ,  H04L1/00 ,  H04N21/434 ,  H04N21/414 ,  H04N21/2383 ,  H04N21/2381 ,  H04N21/2362 ,  H04N21/236 ,  H04N7/08 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04B7/0478 ,  H04B7/0413 ,  H04L1/0041 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0063 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2601 ,  H04L27/2637 ,  H04L27/2646 ,  H04N7/08 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, encoding Data Pipe, DP, data according to a code rate, wherein the encoding further includes Low-Density Parity-Check, LDPC, encoding the DP data, Bit interleaving the LDPC encoded DP data, and mapping the bit interleaved DP data onto constellations; building at least one signal frame by mapping the encoded DP data; and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.

公开(公告)号：US09935736B2

公开(公告)日：2018-04-03

申请号：US15467226

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04N7/16 ,  H04L1/00 ,  H04L27/26 ,  H03M13/11 ,  H03M13/15 ,  H03M13/25 ,  H03M13/27 ,  H04N21/236 ,  H04N21/2362 ,  H04N21/434 ,  H04N21/438

CPC classification number: H04L1/0057 ,  H03M13/036 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2778 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0071 ,  H04L27/2605 ,  H04L27/2627 ,  H04L27/2649 ,  H04L2001/0093 ,  H04N21/23614 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/41407 ,  H04N21/4345 ,  H04N21/4381 ,  H04N21/4382 ,  H04N21/6131

Abstract: 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.