ES2138992T3 - Aparato y metodo para la compresion de datos. - Google Patents

Aparato y metodo para la compresion de datos.

Info

Publication number
ES2138992T3
ES2138992T3 ES93300609T ES93300609T ES2138992T3 ES 2138992 T3 ES2138992 T3 ES 2138992T3 ES 93300609 T ES93300609 T ES 93300609T ES 93300609 T ES93300609 T ES 93300609T ES 2138992 T3 ES2138992 T3 ES 2138992T3
Authority
ES
Spain
Prior art keywords
band
signal
location
quantization
bands
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
ES93300609T
Other languages
English (en)
Inventor
Kyoya Tsutsui
Kenzo Akagiri
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 ES2138992T3 publication Critical patent/ES2138992T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03M7/50—Conversion to or from non-linear codes, e.g. companding
    • 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
    • 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
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6011—Encoder aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

SE DESCRIBE UN APARATO PARA LA COMPRESION DE SEÑAL DE ENTRADA DIGITAL, Y SUMINISTRAR UNA SEÑAL DE SALIDA DIGITAL COMPRIMIDA, QUE INCLUYE MEDIOS (11-15) PARA LA DERIVACION DE COEFICIENTES DE ESPECTRO PLURAL A PARTIR DE ENTRADA DIGITAL, Y PARA EL AGRUPAMIENTO DE LOS COEFICIENTES ESPECTRALES EN BANDAS, Y MEDIOS (16,18) DE LOCALIZACION DE BIT ADACTIVO PARA LA LOCALIZACION ADACTIVA DE UN NUMERO DE BITS DE CUANTIZACION DEPENDIENTE DE LA SEÑAL A LO LARGO DE LAS BANDAS PARA LA LOCALIZACION DE CADA BANDA SEGUN UN NUMERO DE BITS DE CUANTIZACION DEPENDIENTE DE LA SEÑAL PARA PROCESO DE CUANTIZACION DE CADA COEFICIENTE ESPECTRAL EN LA BANDA, EL NUMERO DE BITS DE CUANTIZACION DEPENDIENTE DE LA SEÑAL LOCALIZADOS A CADA BANDA QUE SON DETERMINADOS DE ACUERDO CON LA MAGNITUD DE BANDA, PESADOS DE FORMA DEPENDIENTE DE LA FRECUENCIA BANDA.
ES93300609T 1992-01-29 1993-01-28 Aparato y metodo para la compresion de datos. Expired - Lifetime ES2138992T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04036952A JP3134455B2 (ja) 1992-01-29 1992-01-29 高能率符号化装置及び方法

Publications (1)

Publication Number Publication Date
ES2138992T3 true ES2138992T3 (es) 2000-02-01

Family

ID=12484087

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93300609T Expired - Lifetime ES2138992T3 (es) 1992-01-29 1993-01-28 Aparato y metodo para la compresion de datos.

Country Status (12)

Country Link
US (1) US5301205A (es)
EP (1) EP0554081B1 (es)
JP (1) JP3134455B2 (es)
KR (1) KR100288460B1 (es)
CN (1) CN1046608C (es)
AT (1) ATE185016T1 (es)
AU (1) AU656452B2 (es)
CA (1) CA2088202C (es)
DE (1) DE69326484T2 (es)
ES (1) ES2138992T3 (es)
MY (1) MY138517A (es)
TW (1) TW200586B (es)

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Also Published As

Publication number Publication date
ATE185016T1 (de) 1999-10-15
CA2088202A1 (en) 1993-07-30
AU3195393A (en) 1993-08-05
MY138517A (en) 2009-06-30
DE69326484T2 (de) 2000-04-27
CN1078832A (zh) 1993-11-24
KR100288460B1 (ko) 2001-05-02
EP0554081B1 (en) 1999-09-22
CN1046608C (zh) 1999-11-17
CA2088202C (en) 2004-12-28
EP0554081A1 (en) 1993-08-04
TW200586B (en) 1993-02-21
DE69326484D1 (de) 1999-10-28
KR930017315A (ko) 1993-08-30
JP3134455B2 (ja) 2001-02-13
JPH05206866A (ja) 1993-08-13
US5301205A (en) 1994-04-05
AU656452B2 (en) 1995-02-02

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