ES2148199T3 - Aparato para decodificacion. - Google Patents

Aparato para decodificacion.

Info

Publication number
ES2148199T3
ES2148199T3 ES93300310T ES93300310T ES2148199T3 ES 2148199 T3 ES2148199 T3 ES 2148199T3 ES 93300310 T ES93300310 T ES 93300310T ES 93300310 T ES93300310 T ES 93300310T ES 2148199 T3 ES2148199 T3 ES 2148199T3
Authority
ES
Spain
Prior art keywords
zero
signal
gate
data
counter
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
ES93300310T
Other languages
English (en)
Inventor
Masahiko Enari
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of ES2148199T3 publication Critical patent/ES2148199T3/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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

SE PRESENTA UN CIRCUITO DECODIFICADOR EN QUE LOS ERRORES DE DATOS NO SE PROPAGAN AL SIGUIENTE BLOQUE DE DCT Y QUE TIENE LA SIGUIENTE CONFIGURACION. EN RESPUESTA A UNA SEÑAL DE REINICIALIZACION PARA UN PROCESO DE DECODIFICACION, UN CONTADOR DE MARCHA ATRAS LEE UN NUMERO DE PROCESO ESTABLECIDO EN UNA UNIDAD DE ESTABLECIMIENTO DE NUMEROS DE PROCESO 12 Y CUENTA HACIA ATRAS EL NUMERO DE PROCESO SEGUN LOS IMPULSOS DE RELOJ INTRODUCIDOS. UN COMPARADOR 14 COMPARA LA CUENTA DEL CONTADOR DE MARCHA ATRAS 13 Y LOS DATOS MEZCLADOS DISTINTOS DE CERO/DE SERIE CERO EN UNA TABLA DE CONSULTA 2 Y EMITE UNA SEÑAL A < B SI LOS ULTIMOS SON MAYORES. LA SEÑAL DE A < B ES ENVIADA A UNA COMPUERTA OR 15 Y A UNA COMPUERTA NAND 16 Y ES DE NIVEL H, DESPLAZA POR LA FUERZA LA SEÑAL DISTINTA DE CERO/DE SERIE CERO AL NIVEL H Y ENVIA LA SEÑAL A UN CONTADOR HACIA ADELANTE 8 Y A UNA COMPUERTA OR 11. AL MISMO TIEMPO, LAS SALIDAS DE LA COMPUERTA NAND 16 Y DE LA COMPUERTA OR 15 SE MULTIPLICAN LOGICAMENTE Y SE ENVIAN A UN GRUPO DECOMPUESTAS AND 5, QUE SUSTITUYE A LOS DATOS DE SERIE CERO Y A LOS DATOS DISTINTOS DE CERO "0".
ES93300310T 1992-01-20 1993-01-19 Aparato para decodificacion. Expired - Lifetime ES2148199T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4007442A JPH05199122A (ja) 1992-01-20 1992-01-20 復号回路

Publications (1)

Publication Number Publication Date
ES2148199T3 true ES2148199T3 (es) 2000-10-16

Family

ID=11665968

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93300310T Expired - Lifetime ES2148199T3 (es) 1992-01-20 1993-01-19 Aparato para decodificacion.

Country Status (5)

Country Link
US (1) US5565991A (es)
EP (1) EP0552908B1 (es)
JP (1) JPH05199122A (es)
DE (1) DE69329125T2 (es)
ES (1) ES2148199T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0152032B1 (ko) * 1994-05-06 1998-10-15 김광호 영상신호를 위한 가변장복호기
US5703697A (en) * 1996-03-20 1997-12-30 Lg Electronics, Inc. Method of lossy decoding of bitstream data
US6055557A (en) * 1997-01-08 2000-04-25 International Business Machines Corp. Adder circuit and method therefor
US6356639B1 (en) 1997-04-11 2002-03-12 Matsushita Electric Industrial Co., Ltd. Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment
US6895119B2 (en) * 2002-03-14 2005-05-17 Winbond Electronics Corp. Method and apparatus for decoding compressed image data and capable of preventing error propagation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR436251A (fr) * 1910-10-29 1912-03-23 James Henry Wagenhorst Jante de roue de véhicule
JPH07105730B2 (ja) * 1985-11-19 1995-11-13 キヤノン株式会社 符号化装置
US4737765A (en) * 1986-10-22 1988-04-12 Magnetic Peripherals Inc. 2,7 Code decoder with no more than 3 bits error propagation
JPS6449429A (en) * 1987-08-20 1989-02-23 Fujitsu Ltd Runlength code receiver
US4813056A (en) * 1987-12-08 1989-03-14 General Electric Company Modified statistical coding of digital signals
US4903269A (en) * 1988-05-16 1990-02-20 General Electric Company Error detector for encoded digital signals
DE69022705T2 (de) * 1989-12-29 1996-05-23 Philips Electronics Nv System zur Kodierung/Dekodierung von digitalen Signalen zur Übertragung und/oder Speicherung.
EP0744869B1 (en) * 1990-12-28 2000-03-22 Canon Kabushiki Kaisha Image processing apparatus

Also Published As

Publication number Publication date
EP0552908B1 (en) 2000-08-02
EP0552908A3 (en) 1994-05-25
US5565991A (en) 1996-10-15
EP0552908A2 (en) 1993-07-28
JPH05199122A (ja) 1993-08-06
DE69329125T2 (de) 2001-03-29
DE69329125D1 (de) 2000-09-07

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