BRPI0411541A - método e aparelho para processar pacotes nulos em um receptor de mìdia digital - Google Patents
método e aparelho para processar pacotes nulos em um receptor de mìdia digitalInfo
- Publication number
- BRPI0411541A BRPI0411541A BRPI0411541-4A BRPI0411541A BRPI0411541A BR PI0411541 A BRPI0411541 A BR PI0411541A BR PI0411541 A BRPI0411541 A BR PI0411541A BR PI0411541 A BRPI0411541 A BR PI0411541A
- Authority
- BR
- Brazil
- Prior art keywords
- null
- packets
- packet
- bit pattern
- digital media
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
- H04J3/0605—Special codes used as synchronising signal
- H04J3/0608—Detectors therefor, e.g. correlators, state machines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/043—Pseudo-noise [PN] codes variable during transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/09—Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
- H03M13/095—Error detection codes other than CRC and single parity bit codes
- H03M13/096—Checksums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L2007/045—Fill bit or bits, idle words
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
"MéTODO E APARELHO PARA PROCESSAR PACOTES NULOS EM UM RECEPTOR DE MìDIA DIGITAL". São descritos um método e aparelho (299) para detectar confiavelmente posições de bytes de sincronismo de pacotes MPEG-2 recebidos por um sistema de transmissão digital, no caso de um fluxo de pacotes contendo uma pluralidade de pacotes nulos, ou uma pluralidade de pacotes contendo um padrão de bits repetitivo fixo, e para sincronizar e entregar confiavelmente o fluxo MPEG-2 difundido na camada de transporte do receptor. Um Detector de Pacotes Nulos (250) compara o conteúdo do pacote atual com um padrão de bits fixo (ou predeterminado) para detectar um pacote nulo para identificar confiavelmente o local do byte de sincronismo do pacote nulo. Uma posição do byte de sincronismo é identificada com base na posição do padrão de bits fixo predeterminado na parte do cabeçalho de uma pluralidade de pacotes nulos no fluxo.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US47939703P | 2003-06-18 | 2003-06-18 | |
PCT/US2004/019003 WO2004114676A2 (en) | 2003-06-18 | 2004-06-16 | Method and apparatus for processing null packets in a digital media receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0411541A true BRPI0411541A (pt) | 2006-08-01 |
BRPI0411541B1 BRPI0411541B1 (pt) | 2018-09-18 |
Family
ID=33539173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0411541A BRPI0411541B1 (pt) | 2003-06-18 | 2004-06-16 | método e aparelho para processar pacotes nulos em um receptor de mídia digital |
Country Status (10)
Country | Link |
---|---|
US (1) | US7652999B2 (pt) |
EP (1) | EP1634462B1 (pt) |
JP (1) | JP4848274B2 (pt) |
KR (1) | KR101059036B1 (pt) |
CN (1) | CN1810042B (pt) |
BR (1) | BRPI0411541B1 (pt) |
DE (1) | DE602004023502D1 (pt) |
MX (1) | MXPA05013573A (pt) |
MY (2) | MY144728A (pt) |
WO (1) | WO2004114676A2 (pt) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713468B1 (ko) * | 2005-09-15 | 2007-04-30 | 삼성전자주식회사 | 초기지연을 최소화하는 동영상 전문가 그룹 전송 스트림동기 방법 및 장치 |
JP4835951B2 (ja) * | 2005-11-04 | 2011-12-14 | 日本電気株式会社 | 無線通信システムとその送信電力制御方法 |
EP1821196B1 (en) * | 2006-02-15 | 2008-08-13 | Jaycrypto Limited | Method and apparatus for seeding a cryptographic random number generator |
US7978603B2 (en) * | 2006-10-10 | 2011-07-12 | Qualcomm Incorporated | Traffic optimization in a heterogeneous wireless cabin network |
CN101690196B (zh) * | 2007-07-02 | 2013-05-22 | 三星电子株式会社 | 数字广播发送器、接收器及其处理流的方法 |
US9003054B2 (en) * | 2007-10-25 | 2015-04-07 | Microsoft Technology Licensing, Llc | Compressing null columns in rows of the tabular data stream protocol |
FR2931021A1 (fr) * | 2008-05-09 | 2009-11-13 | Canon Kk | Procede de synchronisation d'un flux de donnees transmis sur un reseau de communication synchrone, produit programme d'ordinateur, moyen de stockage et dispositif recepteur correspondants. |
US8261165B2 (en) * | 2008-11-14 | 2012-09-04 | Silicon Laboratories Inc. | Multi-syndrome error correction circuit |
US8438450B2 (en) * | 2009-01-30 | 2013-05-07 | Sri International | Method and system for performing data integrity verification of a transport stream |
US8848685B2 (en) * | 2009-02-02 | 2014-09-30 | Lg Electronics Inc. | Transmitting/receiving system and method of processing data in the transmitting/receiving system |
US8855098B2 (en) * | 2009-02-02 | 2014-10-07 | Lg Electronics Inc. | Transmitting/receiving system and method of processing data in the transmitting/receiving system |
WO2012015388A1 (en) * | 2010-07-26 | 2012-02-02 | Hewlett-Packard Development Company, L. P. | Mitigation of detected patterns in a network device |
KR101711937B1 (ko) | 2010-12-03 | 2017-03-03 | 삼성전자주식회사 | 비디오 및 오디오 통신 시스템에서 가변 길이 전송 패킷을 지원하기 위한 장치 및 방법 |
US20120237036A1 (en) * | 2011-03-15 | 2012-09-20 | Texas Instruments Incorporated | Communicating scrambling seed information |
CN103001816B (zh) * | 2011-09-14 | 2016-08-10 | 华为技术有限公司 | 数据通信方法和设备 |
WO2014031885A1 (en) * | 2012-08-22 | 2014-02-27 | Huawei Technologies Co., Ltd. | Carriage of iso-bmff event boxes in an mpeg-2 transport stream |
KR102127404B1 (ko) * | 2013-05-15 | 2020-07-07 | 엘지전자 주식회사 | 방송 신호 송신 장치, 방송 신호 수신 장치, 방송 신호 송신 방법 및 방송 신호 수신 방법 |
KR102130151B1 (ko) | 2013-07-22 | 2020-07-03 | 삼성전자주식회사 | 송신 장치, 수신 장치 및 그 신호 처리 방법 |
KR101894889B1 (ko) * | 2017-04-06 | 2018-09-04 | 에스케이브로드밴드주식회사 | VoD서비스제공장치 및 그 동작 방법 |
US10902166B2 (en) * | 2017-12-31 | 2021-01-26 | Arteris, Inc. | System and method for isolating faults in a resilient system |
JP7225080B2 (ja) * | 2019-11-29 | 2023-02-20 | 株式会社東芝 | 電子通信装置、磁気ディスク装置、及びシリアル通信方法 |
US11323758B1 (en) * | 2019-12-12 | 2022-05-03 | Amazon Technologies, Inc. | Lossless transport stream compression from constant bitrate to variable bitrate to constant bitrate |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5414833A (en) * | 1993-10-27 | 1995-05-09 | International Business Machines Corporation | Network security system and method using a parallel finite state machine adaptive active monitor and responder |
US5703887A (en) * | 1994-12-23 | 1997-12-30 | General Instrument Corporation Of Delaware | Synchronization and error detection in a packetized data stream |
US5796868A (en) * | 1995-12-28 | 1998-08-18 | Cognex Corporation | Object edge point filtering system for machine vision |
JP3345557B2 (ja) * | 1996-10-14 | 2002-11-18 | アルパイン株式会社 | デジタルオーディオ放送受信装置及び受信方法 |
US5831690A (en) * | 1996-12-06 | 1998-11-03 | Rca Thomson Licensing Corporation | Apparatus for formatting a packetized digital datastream suitable for conveying television information |
EP0944249B1 (en) * | 1997-10-03 | 2007-12-19 | Sony Corporation | Encoded stream splicing device and method, and an encoded stream generating device and method |
JP3045715B2 (ja) | 1998-01-23 | 2000-05-29 | 松下電器産業株式会社 | 伝送システム、送信装置、記録再生装置、および記録装置 |
JP2000187940A (ja) | 1998-01-23 | 2000-07-04 | Matsushita Electric Ind Co Ltd | 記録再生装置、および記録装置 |
JP2912323B1 (ja) * | 1998-01-29 | 1999-06-28 | 日本放送協会 | デジタルデータの受信装置 |
JP3526225B2 (ja) * | 1998-11-04 | 2004-05-10 | シャープ株式会社 | デジタル放送受信装置 |
US7245664B1 (en) * | 1999-05-20 | 2007-07-17 | Hitachi Kokusai Electric Inc. | Transmission control method of coded video signals and transmission system |
JP4318838B2 (ja) * | 1999-05-20 | 2009-08-26 | 株式会社日立国際電気 | 伝送システムの制御方法及びその装置 |
JP2000341597A (ja) * | 1999-05-27 | 2000-12-08 | Victor Co Of Japan Ltd | デジタル放送受信機 |
WO2000079733A2 (en) * | 1999-06-23 | 2000-12-28 | At & T Wireless Services, Inc. | Methods and apparatus for reducing traffic over a communication link in a computer network |
KR100360622B1 (ko) * | 2000-06-12 | 2002-11-13 | 주식회사 문화방송 | 엠펙 데이터 프레임과 이를 이용한 송수신 시스템 |
JP2002232379A (ja) * | 2001-02-07 | 2002-08-16 | Matsushita Electric Ind Co Ltd | Mpeg2トランスポートストリーム多重装置 |
US6823219B2 (en) * | 2001-05-16 | 2004-11-23 | Dowslake Microsystems Corporation | Universal optical control and management platform |
EP1267580A3 (en) * | 2001-05-28 | 2009-06-03 | Panasonic Corporation | Data transfer device |
JP3741668B2 (ja) * | 2002-03-26 | 2006-02-01 | 池上通信機株式会社 | データ多重化装置 |
US7499469B2 (en) * | 2003-01-13 | 2009-03-03 | Broadcom Corporation | Method and system for generating digital video broadcast (DVB) transport stream from direct satellite system (DSS) transport stream |
-
2004
- 2004-06-16 EP EP04755280A patent/EP1634462B1/en not_active Expired - Lifetime
- 2004-06-16 WO PCT/US2004/019003 patent/WO2004114676A2/en active Application Filing
- 2004-06-16 MX MXPA05013573A patent/MXPA05013573A/es active IP Right Grant
- 2004-06-16 KR KR1020057024213A patent/KR101059036B1/ko active IP Right Grant
- 2004-06-16 BR BRPI0411541A patent/BRPI0411541B1/pt active IP Right Grant
- 2004-06-16 JP JP2006517280A patent/JP4848274B2/ja not_active Expired - Lifetime
- 2004-06-16 US US10/560,480 patent/US7652999B2/en active Active
- 2004-06-16 DE DE602004023502T patent/DE602004023502D1/de not_active Expired - Lifetime
- 2004-06-16 CN CN2004800171160A patent/CN1810042B/zh not_active Expired - Lifetime
- 2004-06-17 MY MYPI2010000738A patent/MY144728A/en unknown
- 2004-06-17 MY MYPI20042349A patent/MY144729A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR101059036B1 (ko) | 2011-08-24 |
MXPA05013573A (es) | 2006-08-18 |
MY144728A (en) | 2011-10-31 |
BRPI0411541B1 (pt) | 2018-09-18 |
JP4848274B2 (ja) | 2011-12-28 |
US7652999B2 (en) | 2010-01-26 |
US20060274737A1 (en) | 2006-12-07 |
MY144729A (en) | 2011-10-31 |
WO2004114676A3 (en) | 2005-04-14 |
CN1810042A (zh) | 2006-07-26 |
KR20060022696A (ko) | 2006-03-10 |
JP2006528440A (ja) | 2006-12-14 |
EP1634462A2 (en) | 2006-03-15 |
CN1810042B (zh) | 2010-08-18 |
EP1634462B1 (en) | 2009-10-07 |
WO2004114676A2 (en) | 2004-12-29 |
DE602004023502D1 (de) | 2009-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B15K | Others concerning applications: alteration of classification |
Ipc: H04N 5/04 (2006.01), H03M 13/09 (2006.01) |
|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 18/09/2018, OBSERVADAS AS CONDICOES LEGAIS. |
|
B25G | Requested change of headquarter approved |
Owner name: THOMSON LICENSING (FR) |
|
B25A | Requested transfer of rights approved |
Owner name: THOMSON LICENSING DTV (FR) |
|
B25A | Requested transfer of rights approved |
Owner name: INTERDIGITAL MADISON PATENT HOLDINGS (FR) |