ES2161331T3 - Aparato y metodo para codificar y descodificar datos digitales de video. - Google Patents

Aparato y metodo para codificar y descodificar datos digitales de video.

Info

Publication number
ES2161331T3
ES2161331T3 ES96305566T ES96305566T ES2161331T3 ES 2161331 T3 ES2161331 T3 ES 2161331T3 ES 96305566 T ES96305566 T ES 96305566T ES 96305566 T ES96305566 T ES 96305566T ES 2161331 T3 ES2161331 T3 ES 2161331T3
Authority
ES
Spain
Prior art keywords
encoded
video data
data
digital video
intraframe
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
Application number
ES96305566T
Other languages
English (en)
Inventor
Yasushi Fujinami
Jun Yonemitsu
Makoto Kawamura
Yoichi Yagasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ES2161331T3 publication Critical patent/ES2161331T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • 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
    • H04N21/4341—Demultiplexing of audio and video streams
    • 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
    • H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation
    • H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal

Abstract

UN CODIFICADOR Y DECODIFICADOR DE DATOS DE VIDEO DIGITAL FUNCIONA PARA PERMITIR LA REPRODUCCION, A ALTA Y BAJA VELOCIDAD, DE LOS DATOS DE VIDEO DIGITAL CODIFICADOS A VELOCIDAD VARIABLE POR REPRODUCCION Y DECODIFICACION DE LAS TRAMAS CODIFICADADAS DENTRO DE OTRAS TRAMAS QUE SON IDENTIFICADOS POR LA PREVIA REPRODUCCION DE TRAMAS CODIFICADAS DENTRO DE OTRAS TRAMAS. EN EL CODIFICADOR, LOS DATOS DE VIDEO DIGITAL SON CODIFICADOS A VELOCIDAD VARIABLE (1), POR EJEMPLO, PUNTOS DE ENTRADA CODIFICADOS DENTRO DE OTRAS TRAMAS O ENTRE TRAMAS (EJ. POSICIONES DE COMIENZO) DE DATOS DE VIDEO CODIFICADOS SELECCIONADOS, SON IDENTIFICADOS Y QUE REPRESENTAN TRAMAS DE VIDEO QUE APARECEN A INTERVALOS PREDETERMINADOS DE TIEMPO (EJ. 1, 2 Y 4 SEGUNDOS) EN LA IMAGEN DE VIDEO. LOS DATOS DEL PUNTO DE ENTRADA QUE IDENTIFICAN ESTAS POSICIONES, SON GENERADOS (31, 8, 33) Y AÑADIDOS (32, 6) AL DATO DE VIDEO CODIFICADO ANTES DE QUE EL DATO DE VIDEO SEA GRABADO EN EL MEDIO DE GRABACION (DSM). CUANDO EL DATO CODIFICADO ES REPRODUCIDO DESDE EL MEDIO DE GRABACION, EL DATO DEL PUNTO DE ENTRADA ES EXTRAIDO DESDE EL Y ALMACENADO, Y UNA TRAMA SUCESIVA CODIFICADA DENTRO DE OTRA TRAMA, ES IDENTIFICADA POR LA EXTRACCION DEL DATO DEL PUNTO DE ENTRADA QUE ES REPRODUCIDO Y DECODIFICADO. LA INVENCION PROPORCIONA POSTERIORMENTE UN MEDIO DE GRABACION TENIENDO EN EL LOS DATOS DE VIDEO DIGITAL CODIFICADOS, Y TAMBIEN PROPORCIONA UN CODIFICADOR Y EL CORRESPONDIENTE DESCODIFICADOR, LOS CUALES CODIFICAN Y DESCODIFICAN , RESPECTIVAMENTE, LAS IMAGENES FIJAS DIGITALES Y DATOS DE AUDIO EN LOS QUE LOS PUNTOS DE ENTRADA SE REFIEREN A CADA UNA DE LAS IMAGENES FIJAS Y TAMBIEN A INTERVALOS PARTICULARES DE TIEMPO DE LOS DATOS DE AUDIO.
ES96305566T 1995-08-02 1996-07-30 Aparato y metodo para codificar y descodificar datos digitales de video. Expired - Lifetime ES2161331T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19781395A JP3484832B2 (ja) 1995-08-02 1995-08-02 記録装置、記録方法、再生装置及び再生方法

Publications (1)

Publication Number Publication Date
ES2161331T3 true ES2161331T3 (es) 2001-12-01

Family

ID=16380777

Family Applications (2)

Application Number Title Priority Date Filing Date
ES96305566T Expired - Lifetime ES2161331T3 (es) 1995-08-02 1996-07-30 Aparato y metodo para codificar y descodificar datos digitales de video.
ES00202503T Expired - Lifetime ES2201999T3 (es) 1995-08-02 1996-07-30 Aparato y procedimiento para codificar datos de video digital.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES00202503T Expired - Lifetime ES2201999T3 (es) 1995-08-02 1996-07-30 Aparato y procedimiento para codificar datos de video digital.

Country Status (13)

Country Link
US (1) US6363212B1 (es)
EP (2) EP1039756B1 (es)
JP (1) JP3484832B2 (es)
KR (1) KR100440649B1 (es)
CN (1) CN1130922C (es)
AT (2) ATE249710T1 (es)
AU (1) AU723796B2 (es)
CA (1) CA2181863C (es)
DE (2) DE69615111T2 (es)
ES (2) ES2161331T3 (es)
MX (2) MX9603108A (es)
MY (1) MY117793A (es)
TW (1) TW317064B (es)

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Also Published As

Publication number Publication date
AU723796B2 (en) 2000-09-07
CA2181863A1 (en) 1997-02-03
CN1130922C (zh) 2003-12-10
EP1039756B1 (en) 2003-09-10
EP0757492A2 (en) 1997-02-05
DE69629957D1 (de) 2003-10-16
TW317064B (es) 1997-10-01
JPH0951533A (ja) 1997-02-18
EP0757492B1 (en) 2001-09-12
MY117793A (en) 2004-08-30
KR100440649B1 (ko) 2005-04-06
KR970014296A (ko) 1997-03-29
DE69615111T2 (de) 2002-06-13
EP1039756A3 (en) 2001-01-31
US6363212B1 (en) 2002-03-26
ATE249710T1 (de) 2003-09-15
EP0757492A3 (en) 1997-11-19
EP1039756A2 (en) 2000-09-27
ATE205656T1 (de) 2001-09-15
JP3484832B2 (ja) 2004-01-06
CA2181863C (en) 2006-01-24
CN1152243A (zh) 1997-06-18
AU6086896A (en) 1997-02-06
DE69629957T2 (de) 2004-07-15
DE69615111D1 (de) 2001-10-18
MXPA00012448A (es) 2005-07-25
ES2201999T3 (es) 2004-04-01
MX9603108A (es) 1997-06-28

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