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BR9714678A - "decodificação paralela de correntes de dados intercalados dentro de um decodificador mpeg" - Google Patents

"decodificação paralela de correntes de dados intercalados dentro de um decodificador mpeg"

Info

Publication number
BR9714678A
BR9714678A BR9714678-1A BR9714678A BR9714678A BR 9714678 A BR9714678 A BR 9714678A BR 9714678 A BR9714678 A BR 9714678A BR 9714678 A BR9714678 A BR 9714678A
Authority
BR
Brazil
Prior art keywords
data
pixel
mpeg
frame memory
mpeg decoder
Prior art date
Application number
BR9714678-1A
Other languages
English (en)
Other versions
BR9714678B1 (pt
Inventor
Mark Alan Schultz
Greg Alan Krana Wetter
Original Assignee
Thomson Consumer Electronics
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 Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of BR9714678A publication Critical patent/BR9714678A/pt
Publication of BR9714678B1 publication Critical patent/BR9714678B1/pt

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    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H—ELECTRICITY
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
    • H04N19/428—Recompression, e.g. by spatial or temporal decimation
    • H—ELECTRICITY
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    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • H—ELECTRICITY
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    • H04N19/439—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using cascaded computational arrangements for performing a single operation, e.g. filtering
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • H—ELECTRICITY
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    • 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
    • H04N19/895—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 in combination with error concealment
    • H—ELECTRICITY
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    • 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
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means
    • H04N11/044—Codec means involving 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/90—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Systems (AREA)
  • Color Television Systems (AREA)

Abstract

"DECODIFICAçãO PARALELA DE CORRENTES DE DADOS INTERCALADOS DENTRO DE UM DECODIFICADOR MPEG" Trata-se de um decodificador MPEG (14, 18, 22) em um receptor de televisão de alta definição que decodifica e descomprime os dados codificados por MPEG para produzir blocos de pixels de imagens descomprimidos, e inclui uma rede de compensação de movimento (90 . . .) acoplada a uma memória de quadros (60) para produzir dados de pixels finalmente decodificados para exibição. Os dados de MPEG descomprimidos são recomprimidos por uma pluralidade de recompressores paralelos (40, 42) antes do armazenamrnto na memória de quadros. Cada recompressor recebe uma corrente de dados de dados de pixels intercalados (24, 27, Figura 5), e prevê e comprime os valores de pixels intercalados (a, c) durante cada pulso horário, respectivamente (Figuras 20, 27). Um dos recompressores (42) é desenergizado em um modo de processamento de dados reduzidos quando os dados de pixels são subamostrados (36, 38) antes da recompressão. Os dados subamostrados são reordenados (43) antes da recompressão. Múltiplos descompressores paralelos (80, 82, 84) acoplados à memória de quadros fornecem os dados de pixels à rede de processamento de movimento. Uma unidade de controle (356, 360, 364, Figura 23) assegura um fluxo de dados intercalados não interrompido para os descompressores mediante a repetição dos últimos dados válidos quando os dados da fonte são interrompidos.
BRPI9714678-1A 1996-12-18 1997-12-15 decodificação paralela de correntes de dados intercalados dentro de um decodificador mpeg. BR9714678B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96402785 1996-12-18
PCT/US1997/022855 WO1998027741A1 (en) 1996-12-18 1997-12-15 Parallel decoding of interleaved data streams within an mpeg decoder

Publications (2)

Publication Number Publication Date
BR9714678A true BR9714678A (pt) 2000-10-03
BR9714678B1 BR9714678B1 (pt) 2011-04-19

Family

ID=8225352

Family Applications (4)

Application Number Title Priority Date Filing Date
BR9713712-0A BR9713712A (pt) 1996-12-18 1997-09-30 Processador de sinais de vìdeo de múltiplos formatos
BR9713747A BR9713747A (pt) 1996-12-18 1997-12-15 Decodificador de vìdeo com processamento de dados intercalados
BRPI9714679-0A BR9714679B1 (pt) 1996-12-18 1997-12-15 arquitetura de memória para um processador de sinais de vìdeo de múltiplos formatos.
BRPI9714678-1A BR9714678B1 (pt) 1996-12-18 1997-12-15 decodificação paralela de correntes de dados intercalados dentro de um decodificador mpeg.

Family Applications Before (3)

Application Number Title Priority Date Filing Date
BR9713712-0A BR9713712A (pt) 1996-12-18 1997-09-30 Processador de sinais de vìdeo de múltiplos formatos
BR9713747A BR9713747A (pt) 1996-12-18 1997-12-15 Decodificador de vìdeo com processamento de dados intercalados
BRPI9714679-0A BR9714679B1 (pt) 1996-12-18 1997-12-15 arquitetura de memória para um processador de sinais de vìdeo de múltiplos formatos.

Country Status (12)

Country Link
EP (10) EP0945022B1 (pt)
JP (12) JP4627812B2 (pt)
KR (10) KR100517993B1 (pt)
CN (15) CN1250010C (pt)
AU (10) AU4507097A (pt)
BR (4) BR9713712A (pt)
DE (8) DE69721299T2 (pt)
MY (7) MY119023A (pt)
RU (4) RU2217879C2 (pt)
TR (1) TR199901359T2 (pt)
TW (3) TW366662B (pt)
WO (10) WO1998027720A1 (pt)

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