BR9806692A - Processos e aparelhos para codificar um sinal de entrada e para decodificar uma cadeia de códigos, e, meio de gravação - Google Patents

Processos e aparelhos para codificar um sinal de entrada e para decodificar uma cadeia de códigos, e, meio de gravação

Info

Publication number
BR9806692A
BR9806692A BR9806692-7A BR9806692A BR9806692A BR 9806692 A BR9806692 A BR 9806692A BR 9806692 A BR9806692 A BR 9806692A BR 9806692 A BR9806692 A BR 9806692A
Authority
BR
Brazil
Prior art keywords
encoding
signal components
channel
circuit
range
Prior art date
Application number
BR9806692-7A
Other languages
English (en)
Other versions
BR9806692B1 (pt
Inventor
Kyoya Tsutsui
Osamu Shimoyoshi
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
Publication of BR9806692A publication Critical patent/BR9806692A/pt
Publication of BR9806692B1 publication Critical patent/BR9806692B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007—Time or data compression or expansion
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Communication Control (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Credit Cards Or The Like (AREA)
  • Recording Measured Values (AREA)
  • Error Detection And Correction (AREA)

Abstract

"PROCESSOS E APARELHOS PARA CODIFICAR UM SINAL DE ENTRADA E PARA DECODIFICAR UMA CADEIA DE CóDIGOS, E, MEIO DE GRAVAçãO". Processo de codificação e aparelho e processo de decodificação e aparelho nos quais a informação codificada é diminuída em volume e nos quais as operações de codificação e decodificação são realizadas com um menor volume de processamento e menor capacidade de memória de reforço. O aparelho inclui um circuito de espalhamento de sinal de faixa baixa para separar componentes de sinal do lado de faixa baixa dos sinais dos canais L e R convertidos por um circuito de transformada em componentes de sinal espectrais, e um circuito de síntese de canal para sintetizar as componentes de sinal do canal (L + R) das componentes de sinal espectrais dos canais L e R. O aparelho inclui também um circuito de separação de sinal de faixa alta para separar as componentes de sinal do lado de faixa alta das componentes de sinal do canal (L + R), um circuito de codificação de componentes de sinal para codificação por compressão das componentes de sinal do lado de faixa baixa e um circuito de codificação de componentes de sinal para codificação por compressão dos coeficientes de informação de normalização obtidos das componentes de sinal de faixa alta do canal (L + R).
BRPI9806692-7A 1997-03-31 1998-03-31 processo e aparelho para decodificaÇço de uma cadeia de càdigos. BR9806692B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8120897 1997-03-31

Publications (2)

Publication Number Publication Date
BR9806692A true BR9806692A (pt) 2000-09-05
BR9806692B1 BR9806692B1 (pt) 2010-08-24

Family

ID=13740077

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9806692-7A BR9806692B1 (pt) 1997-03-31 1998-03-31 processo e aparelho para decodificaÇço de uma cadeia de càdigos.

Country Status (17)

Country Link
US (1) US6169973B1 (pt)
EP (1) EP0875999B1 (pt)
KR (1) KR100689637B1 (pt)
CN (1) CN1104689C (pt)
AT (1) ATE362168T1 (pt)
AU (1) AU735150B2 (pt)
BR (1) BR9806692B1 (pt)
CA (1) CA2233521C (pt)
DE (1) DE69837738T2 (pt)
ES (1) ES2283034T3 (pt)
ID (1) ID20092A (pt)
MY (1) MY122169A (pt)
PL (1) PL325654A1 (pt)
RU (1) RU2226712C2 (pt)
SG (1) SG73504A1 (pt)
TR (1) TR199800587A2 (pt)
TW (1) TW384434B (pt)

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Also Published As

Publication number Publication date
SG73504A1 (en) 2000-06-20
TW384434B (en) 2000-03-11
EP0875999A3 (en) 2002-02-13
KR100689637B1 (ko) 2007-11-09
US6169973B1 (en) 2001-01-02
EP0875999A2 (en) 1998-11-04
ID20092A (id) 1998-10-01
ATE362168T1 (de) 2007-06-15
AU735150B2 (en) 2001-07-05
ES2283034T3 (es) 2007-10-16
CN1197958A (zh) 1998-11-04
TR199800587A3 (tr) 1998-10-21
RU2226712C2 (ru) 2004-04-10
AU5970598A (en) 1998-10-01
EP0875999B1 (en) 2007-05-09
CN1104689C (zh) 2003-04-02
CA2233521C (en) 2007-06-26
TR199800587A2 (xx) 1998-10-21
DE69837738D1 (de) 2007-06-21
PL325654A1 (en) 1998-10-12
MY122169A (en) 2006-03-31
KR19980081208A (ko) 1998-11-25
CA2233521A1 (en) 1998-09-30
DE69837738T2 (de) 2008-01-31
BR9806692B1 (pt) 2010-08-24

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