MX9801478A - Metodo y aparato de codificacion de informacion, metodo y aparato de descodificacion de informacion, y medio de registro de informacion. - Google Patents

Metodo y aparato de codificacion de informacion, metodo y aparato de descodificacion de informacion, y medio de registro de informacion.

Info

Publication number
MX9801478A
MX9801478A MX9801478A MX9801478A MX9801478A MX 9801478 A MX9801478 A MX 9801478A MX 9801478 A MX9801478 A MX 9801478A MX 9801478 A MX9801478 A MX 9801478A MX 9801478 A MX9801478 A MX 9801478A
Authority
MX
Mexico
Prior art keywords
information
signals
reproducing device
reproduced
recording medium
Prior art date
Application number
MX9801478A
Other languages
English (en)
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 MX9801478A publication Critical patent/MX9801478A/es

Links

Classifications

    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10361—Improvement or modification of read or write signals signal quality assessment digital demodulation process
    • G11B20/1037—Improvement or modification of read or write signals signal quality assessment digital demodulation process based on hard decisions, e.g. by evaluating bit error rates before or after ECC decoding
    • 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
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1415—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol conversion to or from pulse frequency coding
    • 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
    • G11B2020/00072—Time or data compression or expansion the compressed signal including a video signal
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1225—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc frame, i.e. a subunit of a sector containing user data, e.g. a sync frame

Abstract

En caso de que los codigos de las normas antigua y nueva que se registran en el mismo medio de registro, es deseable que las señales de la norma antigua puedan reproducirse mediante un dispositivo de reproduccion de acomodo de la norma antigua, mientras que ambas señales se reproducen mediante un dispositivo de reproduccion de acomodo de la norma nueva, a fin de evitar y disminuir la calidad de la señal. Para este fin, si las señales de canales multiples se registran en térmicos de un cuadro, el tamaño del cual no se puede controlar, un segundo circuito de codificacion codifica las señales de un canal reproducidas por el dispositivo de reproduccion de acomodo de la norma antigua, mientras que un primer circuito de codificacion codifica las señales de un canal reproducido mediante un dispositivo de reproduccion que acomoda la norma antigua, con un numero de bits más pequeño que el numero máximo de bits que se pueden asignar a ese cuadro. Un circuito generador de sarta de codigos forma una sarta de codigos codificada mediante el segundo circuito de codificacion, en un área de huecos de un cuadro, proporcionada mediante codificacion en el primer circuito de codificacion.
MX9801478A 1997-02-26 1998-02-24 Metodo y aparato de codificacion de informacion, metodo y aparato de descodificacion de informacion, y medio de registro de informacion. MX9801478A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4251497 1997-02-26

Publications (1)

Publication Number Publication Date
MX9801478A true MX9801478A (es) 1998-11-30

Family

ID=12638189

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9801478A MX9801478A (es) 1997-02-26 1998-02-24 Metodo y aparato de codificacion de informacion, metodo y aparato de descodificacion de informacion, y medio de registro de informacion.

Country Status (14)

Country Link
US (1) US6314391B1 (es)
EP (1) EP0867867A3 (es)
KR (1) KR100565017B1 (es)
CN (1) CN1201308A (es)
AU (1) AU757422B2 (es)
BR (1) BR9800778A (es)
CA (1) CA2230156A1 (es)
ID (1) ID20232A (es)
MX (1) MX9801478A (es)
PL (1) PL325044A1 (es)
RU (1) RU2221329C2 (es)
SG (1) SG74613A1 (es)
TR (1) TR199800315A2 (es)
TW (1) TW429700B (es)

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JP5231225B2 (ja) 2005-08-30 2013-07-10 エルジー エレクトロニクス インコーポレイティド オーディオ信号をエンコーディング及びデコーディングするための装置とその方法
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Also Published As

Publication number Publication date
KR19980071716A (ko) 1998-10-26
EP0867867A2 (en) 1998-09-30
TR199800315A3 (tr) 1998-09-21
US6314391B1 (en) 2001-11-06
CN1201308A (zh) 1998-12-09
TW429700B (en) 2001-04-11
CA2230156A1 (en) 1998-08-26
EP0867867A3 (en) 2003-10-01
PL325044A1 (en) 1998-08-31
ID20232A (id) 1998-10-29
SG74613A1 (en) 2000-08-22
KR100565017B1 (ko) 2006-10-31
TR199800315A2 (xx) 1998-09-21
AU5631398A (en) 1998-09-03
RU2221329C2 (ru) 2004-01-10
AU757422B2 (en) 2003-02-20
BR9800778A (pt) 1999-11-23

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