KR940006111A - 부호화 방식 - Google Patents

부호화 방식 Download PDF

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Publication number
KR940006111A
KR940006111A KR1019930008519A KR930008519A KR940006111A KR 940006111 A KR940006111 A KR 940006111A KR 1019930008519 A KR1019930008519 A KR 1019930008519A KR 930008519 A KR930008519 A KR 930008519A KR 940006111 A KR940006111 A KR 940006111A
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KR
South Korea
Prior art keywords
relationship
ratio
minimum
error rate
optical disc
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KR1019930008519A
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English (en)
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KR100263686B1 (ko
Inventor
요시히데 심부꾸
히로유끼 이노
야스유끼 차끼
도시유끼 나까가와
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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Publication of KR940006111A publication Critical patent/KR940006111A/ko
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Publication of KR100263686B1 publication Critical patent/KR100263686B1/ko

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    • 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
    • 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
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

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  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Amplifiers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Optical Communication System (AREA)

Abstract

〈목적〉 기록 밀도를 향상시킨다.
〈구성〉 디지탈 데이타를 부호화하여 기록 재생하는 경우에 있어서 얻어지는 에러율운, 최대 10-8내지 10-10으로 할필요가 있다. 이 에러율을 실현하려면은, S/N비가 약 22dB이면 된다. 이 S/N비는, 연속하는 0의 최소의 개수 d를 크게하면, 보다 큰 값을 필요로 한다. 광 디스크 장치에 있어서 실현할 수 있는 S/N비는 약 32±3dB이므로, 그것에 대응하는 d의 값은 3내지 7의 범위가 된다.

Description

부호화 방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 부호화 방식을 적용하는 광디스크 장치의 한 실시예의 구성을 도시하는 블록도.
제2도는 에러율과 S/N비의 관계를 설명하는 그래프.
제3도는 d와 임펄스 응답의 관계를 설명하는 도면.
제4도는 S/N비와 d의 관계를 설명하는 그래프.

Claims (3)

  1. 정보 기록 매체에 정보를 기록 재생하기 위해 디지탈 데이타를 가변 길이 부호(d,k;m,n;r)로 부호화하는 부호화 방식에 있어서, 에러율과 S/N비와의 관계에서, 희망하는 에러율을 얻는데에 필요한 최저한의 S/N비를 결정하고, 상기 S/N비의 상기 d의 변화에 대한 관계를 구하며, 상기 S/N비와 상기 d의 관계로부터, 상기 기록 재생계에 있어서 실현할 수가 있는 S/N비에 대응하는 상기 d를 결정하는 것을 특징으로 하는 부호화 방식.
  2. 제1항에 있어서, 상기 가변길이 부호의 d는 3이상, 또한, 7이하이며, 최소 반전 간격 Tmin는 1.7보다 크고, 또한 2.5보다 적고, 검출 윈도우 폭 TW은 0.32보다 크고, 또한 0.45보다 적은 것을 특징으로 하는 부호화 방식.
  3. 제1항 또는 2항에 있어서, 상기 정보 기록 매체는 광디스크, 광자기디스크, 자기디스크 및 자기테이프중의 어느 하나인 것을 특징으로 하는 부호화 방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930008519A 1992-05-25 1993-05-19 부호화 방식 KR100263686B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15755892A JP3427392B2 (ja) 1992-05-25 1992-05-25 符号化方法
JP92-157558 1992-05-25

Publications (2)

Publication Number Publication Date
KR940006111A true KR940006111A (ko) 1994-03-23
KR100263686B1 KR100263686B1 (ko) 2000-08-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930008519A KR100263686B1 (ko) 1992-05-25 1993-05-19 부호화 방식

Country Status (12)

Country Link
US (1) US5432799A (ko)
EP (1) EP0571905B1 (ko)
JP (1) JP3427392B2 (ko)
KR (1) KR100263686B1 (ko)
CN (1) CN1061159C (ko)
AT (1) ATE170019T1 (ko)
AU (1) AU656675B2 (ko)
CA (1) CA2096792A1 (ko)
DE (1) DE69320403T2 (ko)
ES (1) ES2119833T3 (ko)
MY (1) MY109819A (ko)
TW (1) TW342561B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200114850A (ko) * 2019-03-29 2020-10-07 황규건 트리플 죠를 구비한 공압 바이스

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3227901B2 (ja) * 1993-05-21 2001-11-12 ソニー株式会社 変調方法及び復調装置
JP3617074B2 (ja) * 1994-06-30 2005-02-02 ソニー株式会社 データ変調装置およびデータ復調装置
JP3541439B2 (ja) * 1994-07-08 2004-07-14 ソニー株式会社 信号変調方法及び装置、並びに信号復調装置及び方法
US5603058A (en) * 1994-09-08 1997-02-11 International Business Machines Corporation Video optimized media streamer having communication nodes received digital data from storage node and transmitted said data to adapters for generating isochronous digital data streams
US5999570A (en) * 1995-11-21 1999-12-07 Sony Corporation Transmission apparatus, sending apparatus, and receiving apparatus, and transmission method
EP0827310A3 (en) * 1996-08-30 2001-01-24 Sony Corporation Infra-red transmission of digital audio signals
US6564009B2 (en) 1997-05-19 2003-05-13 Sony Corporation Apparatus for recording and/or reproducing data onto and/or from an optical disk and method thereof
JP3716421B2 (ja) * 1997-09-19 2005-11-16 ソニー株式会社 復調装置および復調方法
US7644282B2 (en) 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
JP3870573B2 (ja) * 1998-08-24 2007-01-17 ソニー株式会社 変調装置および方法、記録媒体、並びに復調装置および方法
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
US7046808B1 (en) * 2000-03-24 2006-05-16 Verance Corporation Method and apparatus for detecting processing stages applied to a signal
JP3950021B2 (ja) * 2002-07-31 2007-07-25 株式会社東芝 ラン長制限符号生成方法、ラン長制限符号記録再生装置、及びラン長制限符号記録再生方法
EP1552454B1 (en) 2002-10-15 2014-07-23 Verance Corporation Media monitoring, management and information system
US20060239501A1 (en) 2005-04-26 2006-10-26 Verance Corporation Security enhancements of digital watermarks for multi-media content
US8020004B2 (en) 2005-07-01 2011-09-13 Verance Corporation Forensic marking using a common customization function
US8781967B2 (en) 2005-07-07 2014-07-15 Verance Corporation Watermarking in an encrypted domain
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
US8838977B2 (en) 2010-09-16 2014-09-16 Verance Corporation Watermark extraction and content screening in a networked environment
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8682026B2 (en) 2011-11-03 2014-03-25 Verance Corporation Efficient extraction of embedded watermarks in the presence of host content distortions
US8615104B2 (en) 2011-11-03 2013-12-24 Verance Corporation Watermark extraction based on tentative watermarks
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US9106964B2 (en) 2012-09-13 2015-08-11 Verance Corporation Enhanced content distribution using advertisements
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
US9262793B2 (en) 2013-03-14 2016-02-16 Verance Corporation Transactional video marking system
US9251549B2 (en) 2013-07-23 2016-02-02 Verance Corporation Watermark extractor enhancements based on payload ranking
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
US9596521B2 (en) 2014-03-13 2017-03-14 Verance Corporation Interactive content acquisition using embedded codes
US10078612B2 (en) * 2014-07-28 2018-09-18 Intel Corporation Mode selective balanced encoded interconnect

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689899A (en) * 1971-06-07 1972-09-05 Ibm Run-length-limited variable-length coding with error propagation limitation
US4538189A (en) * 1984-02-06 1985-08-27 Storage Technology Corporation (1,8) Data encoder/decoder
DE3583819D1 (de) * 1984-05-21 1991-09-26 Matsushita Electric Ind Co Ltd Verfahren und vorrichtung zur erzeugung eines lauflaengenbegrenzten kodes.
JPS63257395A (ja) * 1987-04-14 1988-10-25 Sony Corp カラ−映像信号及び音声信号の記録装置
US4985700A (en) * 1988-03-01 1991-01-15 Canon Kabushiki Kaisha Variable-length coding/decoding device
US4933939A (en) * 1988-11-23 1990-06-12 National Semiconductor Corporation Method and apparatus for error measurement and reduction in a mass storage device memory system
US5099237A (en) * 1990-07-10 1992-03-24 Research Corporation Technologies, Inc. Method and apparatus for providing maximum rate modulation or compression encoding and decoding
US5271016A (en) * 1990-12-24 1993-12-14 Eastman Kodak Company Shift-correcting code system with efficient symbol-to-channel bit transformation
TW219416B (ko) * 1992-03-10 1994-01-21 Sony Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200114850A (ko) * 2019-03-29 2020-10-07 황규건 트리플 죠를 구비한 공압 바이스

Also Published As

Publication number Publication date
ES2119833T3 (es) 1998-10-16
DE69320403T2 (de) 1998-12-24
EP0571905A3 (en) 1995-06-07
KR100263686B1 (ko) 2000-08-01
JP3427392B2 (ja) 2003-07-14
CN1061159C (zh) 2001-01-24
CA2096792A1 (en) 1993-11-26
CN1082238A (zh) 1994-02-16
US5432799A (en) 1995-07-11
DE69320403D1 (de) 1998-09-24
AU3869493A (en) 1993-12-02
TW342561B (en) 1998-10-11
AU656675B2 (en) 1995-02-09
EP0571905A2 (en) 1993-12-01
MY109819A (en) 1997-08-30
JPH05325426A (ja) 1993-12-10
EP0571905B1 (en) 1998-08-19
ATE170019T1 (de) 1998-09-15

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