ES2140477T3 - Disposicion de sincronizacion para una señal de video comprimida. - Google Patents
Disposicion de sincronizacion para una señal de video comprimida.Info
- Publication number
- ES2140477T3 ES2140477T3 ES94106965T ES94106965T ES2140477T3 ES 2140477 T3 ES2140477 T3 ES 2140477T3 ES 94106965 T ES94106965 T ES 94106965T ES 94106965 T ES94106965 T ES 94106965T ES 2140477 T3 ES2140477 T3 ES 2140477T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- layer
- clock
- video signal
- meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003550 marker Substances 0.000 abstract 1
Classifications
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- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
-
- 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]
- H04N21/20—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
- H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
-
- 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
-
- 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
-
- 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
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8453—Structuring of content, e.g. decomposing content into time segments by locking or enabling a set of features, e.g. optional functionalities in an executable program
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Television Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Image Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Color Television Systems (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Time-Division Multiplex Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Synchronizing For Television (AREA)
Abstract
APARATO PARA DESARROLLAR SINCRONIZACION DE UNA CAPA INTERMEDIA DE SEÑAL TAL COMO LA CAPA DE TRANSPORTE O MULTIPLEX DE UNA SEÑAL DE VIDEO MULTI-CAPA COMPRIMIDA, INCLUYE EN EL TERMINAL CODIFICADOR DEL SISTEMA APARATO (13,23,25) PARA INCLUIR UNA REFERENCIA DE MARCA DE TIEMPO, TAL COMO UN VALOR IMPUTADO DESDE UN CONTADOR DE MODULO K (23), Y PROVISION PARA QUE UN RELOJ MARCADOR DIFERENCIAL PUEDA SER ACTUALIZADO POR LOS TIEMPOS DE TRANSITO DE LOS RESPECTIVOS CIRCUITOS (P.E. MULTIPLEXADORES) MIENTRAS QUE LA SEÑAL TRANSITA POR TALES CIRCUITOS. EN EL TERMINAL DE RECEPCION DEL SISTEMA UN CONTADOR (27) RESPONDE A UNA SEÑAL CONTROLADA DE RELOJ RECEPTOR Y EL VALOR IMPUTADO DE ESTE CONTADOR ES MUESTREADO A LA LLEGADA DE LAS MARCAS DE RELOJ INCLUIDAS EN LA CAPA DE TRANSPORTE. LAS DIFERENCIAS DE VALORES IMPUTADOS SUCESIVOS MUESTREADOS DEL CONTADOR RECEPTOR SON COMPARADOS CON LAS DIFERENCIAS DE MARCAS DE TIEMPO CORREGIDAS SUCESIVAS CORRESPONDIENTES PARA PROPORCIONAR UNA SEÑAL PARA CONTROL DE LA SEÑAL DEL RELOJ RECEPTOR.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/060,924 US5486864A (en) | 1993-05-13 | 1993-05-13 | Differential time code method and apparatus as for a compressed video signal |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2140477T3 true ES2140477T3 (es) | 2000-03-01 |
Family
ID=22032589
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99108407T Expired - Lifetime ES2226226T3 (es) | 1993-05-13 | 1994-05-04 | Disposicion de sincronizacion para una señal de video comprimida. |
ES94106965T Expired - Lifetime ES2140477T3 (es) | 1993-05-13 | 1994-05-04 | Disposicion de sincronizacion para una señal de video comprimida. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99108407T Expired - Lifetime ES2226226T3 (es) | 1993-05-13 | 1994-05-04 | Disposicion de sincronizacion para una señal de video comprimida. |
Country Status (13)
Country | Link |
---|---|
US (3) | US5486864A (es) |
EP (3) | EP0624983B1 (es) |
JP (3) | JP3657017B2 (es) |
KR (2) | KR100291492B1 (es) |
CN (4) | CN100515091C (es) |
DE (2) | DE69434075T2 (es) |
ES (2) | ES2226226T3 (es) |
HK (1) | HK1033731A1 (es) |
MY (7) | MY163465A (es) |
RU (2) | RU2115261C1 (es) |
SG (7) | SG118194A1 (es) |
TR (2) | TR28315A (es) |
TW (2) | TW326611B (es) |
Families Citing this family (141)
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US5612981A (en) * | 1994-02-15 | 1997-03-18 | Philips Electronics North America Corporation | Apparatus and methods for improving timing recovery of a system clock |
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US5703793A (en) | 1994-07-29 | 1997-12-30 | Discovision Associates | Video decompression |
US6236694B1 (en) * | 1994-08-19 | 2001-05-22 | Thomson Licensing S.A. | Bus and interface system for consumer digital equipment |
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