[go: up one dir, main page]

CA2000013A1 - Structures de donnees et operations machine ameliorees pour la correction des erreurs - Google Patents

Structures de donnees et operations machine ameliorees pour la correction des erreurs

Info

Publication number
CA2000013A1
CA2000013A1 CA2000013A CA2000013A CA2000013A1 CA 2000013 A1 CA2000013 A1 CA 2000013A1 CA 2000013 A CA2000013 A CA 2000013A CA 2000013 A CA2000013 A CA 2000013A CA 2000013 A1 CA2000013 A1 CA 2000013A1
Authority
CA
Canada
Prior art keywords
signals
error
recorded
redundancy
pointing
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.)
Granted
Application number
CA2000013A
Other languages
English (en)
Other versions
CA2000013C (fr
Inventor
James Mitchell Karp
Steven Wayne Roach
Richard Crane Schneider
Stephen Charles West
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to CA 2112452 priority Critical patent/CA2112452C/fr
Priority to IN612DE1990 priority patent/IN178467B/en
Publication of CA2000013A1 publication Critical patent/CA2000013A1/fr
Application granted granted Critical
Publication of CA2000013C publication Critical patent/CA2000013C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B2020/183—Testing wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)
CA002000013A 1989-04-27 1989-10-02 Structures de donnees et operations machine ameliorees pour la correction des erreurs Expired - Fee Related CA2000013C (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA 2112452 CA2112452C (fr) 1989-04-27 1989-10-02 Presentations ameliorees de donnees et operations machines pour corriger les erreurs
IN612DE1990 IN178467B (fr) 1989-10-02 1990-06-21

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/343,551 US5109385A (en) 1989-04-27 1989-04-27 Enhanced data formats and machine operations for enabling error correction
US343,551 1989-04-27

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA 2112452 Division CA2112452C (fr) 1989-04-27 1989-10-02 Presentations ameliorees de donnees et operations machines pour corriger les erreurs

Publications (2)

Publication Number Publication Date
CA2000013A1 true CA2000013A1 (fr) 1990-10-27
CA2000013C CA2000013C (fr) 1994-08-16

Family

ID=23346575

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002000013A Expired - Fee Related CA2000013C (fr) 1989-04-27 1989-10-02 Structures de donnees et operations machine ameliorees pour la correction des erreurs

Country Status (10)

Country Link
US (1) US5109385A (fr)
EP (1) EP0395205B1 (fr)
JP (1) JPH0656694B2 (fr)
KR (1) KR930011679B1 (fr)
CN (1) CN1020808C (fr)
AU (1) AU623724B2 (fr)
BR (1) BR9001936A (fr)
CA (1) CA2000013C (fr)
DE (1) DE69019590T2 (fr)
NZ (1) NZ232174A (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333126A (en) * 1990-01-03 1994-07-26 Hitachi, Ltd. Information recording method and optical disk apparatus using same
US5280488A (en) * 1990-11-08 1994-01-18 Neal Glover Reed-Solomon code system employing k-bit serial techniques for encoding and burst error trapping
US5210760A (en) * 1991-02-15 1993-05-11 International Business Machines Corporation Optimized pointer control system
FR2673298B1 (fr) * 1991-02-22 1995-04-07 Inst Francais Du Petrole Methode et dispositif de transmission sismique a taux d'erreur tres faible.
US5390195A (en) * 1992-04-03 1995-02-14 Ampex Corporation Miller-squared decoder with erasure flag output
US5564013A (en) * 1992-06-22 1996-10-08 Matsushita Electric Industrial Co., Ltd. Optical information recording and reproducing apparatus adapted to optically record and reproduce data in a sector, and method thereof
US5461631A (en) * 1992-12-15 1995-10-24 International Business Machines Corporation Method for bit resynchronization of code-constrained sequences
US5373401A (en) * 1993-06-18 1994-12-13 International Business Machines Corporation Data storage system having multimodal interblock gap detection utilizing a predicted occurance time window
KR950009690B1 (ko) * 1993-09-14 1995-08-26 재단법인한국전자통신연구소 순환 여유검사(crc) 동기 장치
US5465260A (en) * 1993-11-04 1995-11-07 Cirrus Logic, Inc. Dual purpose cyclic redundancy check
CN101295526A (zh) * 1994-04-18 2008-10-29 松下电器产业株式会社 信息处理装置
KR100381116B1 (ko) * 1994-04-18 2003-07-22 마쯔시다덴기산교 가부시키가이샤 광기록매체정보의불법복사또는불법설치방지방법및장치
US5691993A (en) * 1995-06-07 1997-11-25 Seagate Technology, Inc. Rate 4/5 trellis code for PR4 channels with improved error propagation
US5757822A (en) * 1995-08-24 1998-05-26 Quantum Corporation Bit-interleaved rate 16/17 modulation code with three-way byte-interleaved ECC
DE19535800A1 (de) * 1995-09-26 1997-03-27 Siemens Ag Verfahren zum Auslesen von Fehlerstatistikdaten
ATE211848T1 (de) * 1995-10-12 2002-01-15 Koninkl Philips Electronics Nv Gerät zur dekodierung eines kanalsignals in ein informationssignal und wiedergabevorrichtung damit
US5712863A (en) * 1996-02-09 1998-01-27 Overland Data Inc Randomizing encoder for digital data storage
US5931968A (en) 1996-02-09 1999-08-03 Overland Data, Inc. Digital data recording channel
US6167550A (en) * 1996-02-09 2000-12-26 Overland Data, Inc. Write format for digital data storage
US6543024B2 (en) 1996-02-09 2003-04-01 Overland Storage, Inc. Write format for digital data storage
US5815514A (en) * 1996-02-09 1998-09-29 Overland Data, Inc. Variable rate bit inserter for digital data storage
US5844920A (en) * 1996-11-07 1998-12-01 Cirrus Logic, Inc. Thermal asperity compensation using multiple sync marks for retroactive and split segment data synchronization in a magnetic disk storage system
GB2321374A (en) * 1997-01-21 1998-07-22 Ico Services Ltd Spread spectrum satellite communication
US6477677B1 (en) * 1997-04-28 2002-11-05 Canon Kabushiki Kaisha Device and method for coding and decoding data
JP3042607B2 (ja) * 1997-06-13 2000-05-15 日本電気株式会社 同期検出回路
US6597526B1 (en) 1998-08-14 2003-07-22 Overland Storage, Inc. Magnetic tape drive apparatus including a variable rate encoder
JP2001266500A (ja) * 2000-03-23 2001-09-28 Sony Corp データ記録装置及びデータ記録方法、データ再生装置及びデータ再生方法、並びに、データ記録再生装置及びデータ記録再生方法
US6711225B1 (en) * 2000-05-26 2004-03-23 Marvell International, Ltd. Method and apparatus for synchronization of a bit stream for long latency data detection
US20020152436A1 (en) * 2001-02-05 2002-10-17 O'dea James Orrin Digital error mapping circuit and method
US6981171B2 (en) * 2001-06-05 2005-12-27 Sun Microsystems, Inc. Data storage array employing block verification information to invoke initialization procedures
US7421640B2 (en) * 2005-08-17 2008-09-02 International Business Machines Corporation Method and apparatus for providing error correction capability to longitudinal position data
US8687301B1 (en) * 2013-01-08 2014-04-01 Lsi Corporation Parallel no-sync-mark retry
US9354727B2 (en) * 2013-07-12 2016-05-31 Facebook, Inc. Multi-sensor hand detection
US20160179417A1 (en) * 2013-07-30 2016-06-23 Hewlett Packard Enterprise Development Lp Indicating a dimension of a sequential access storage medium subject to expansion and contraction

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668632A (en) * 1969-02-13 1972-06-06 Ibm Fast decode character error detection and correction system
USRE28265E (en) * 1969-12-29 1974-12-10 Svc out
US3821703A (en) * 1972-12-26 1974-06-28 Ibm Signal transferring
US3958220A (en) * 1975-05-30 1976-05-18 International Business Machines Corporation Enhanced error correction
US4081844A (en) * 1976-08-02 1978-03-28 International Business Machines Corporation Interleaved synch and beginning of data indicators
US4455635A (en) * 1981-10-14 1984-06-19 Rca Corporation Coding system for recorded digital audio
JPS6028076A (ja) * 1983-07-27 1985-02-13 Hitachi Ltd デ−タ復調方式
JPS6076061A (ja) * 1983-09-30 1985-04-30 Matsushita Electric Ind Co Ltd 光情報記録再生装置
JPH06101202B2 (ja) * 1983-11-26 1994-12-12 ヤマハ株式会社 Ｄａｄプレーヤにおける信号処理回路
JP2581663B2 (ja) * 1985-05-02 1997-02-12 株式会社日立製作所 光ディスク
JPS6260174A (ja) * 1985-09-10 1987-03-16 Mitsubishi Electric Corp デ−タ記録方法
JPH0690853B2 (ja) * 1986-12-23 1994-11-14 ソニー株式会社 デイジタル信号の時間軸補正装置
US4791643A (en) * 1986-12-29 1988-12-13 Minnesota Mining And Manufacturing Company Single track orthogonal error correction system
JPS63274222A (ja) * 1987-05-01 1988-11-11 Matsushita Electric Ind Co Ltd インタ−リ−ブ方法

Also Published As

Publication number Publication date
CN1020808C (zh) 1993-05-19
CN1046806A (zh) 1990-11-07
NZ232174A (en) 1992-05-26
KR900017013A (ko) 1990-11-15
KR930011679B1 (ko) 1993-12-16
DE69019590T2 (de) 1996-01-18
AU4766090A (en) 1990-11-01
EP0395205B1 (fr) 1995-05-24
EP0395205A3 (fr) 1991-01-09
DE69019590D1 (de) 1995-06-29
JPH0656694B2 (ja) 1994-07-27
BR9001936A (pt) 1991-07-30
AU623724B2 (en) 1992-05-21
US5109385A (en) 1992-04-28
CA2000013C (fr) 1994-08-16
EP0395205A2 (fr) 1990-10-31
JPH02301074A (ja) 1990-12-13

Similar Documents

Publication Publication Date Title
CA2000013A1 (fr) Structures de donnees et operations machine ameliorees pour la correction des erreurs
EP0182701A3 (en) Phase-locked loop for mfm data recording
TW371750B (en) Recording and/or reproducing system and data backup system
AU7926087A (en) Optically readable record carrier for recording information, method and apparatus for manufacturing such a record carrier ,apparatus for recording information on such a record carrier and apparatus for reading information recorded on such a record carrier
TW342561B (en) Encoding system
AU8067387A (en) Method and apparatus for recording and/or reproducing digital data
AU661991B2 (en) Method and device for recording information volumes in a track of a record carrier, and a device for reading the record carrier thus obtained
EP0175308A3 (en) Recording disk data playback apparatus
GB8503220D0 (en) Data recording & reproducing method
EP0273676A3 (fr) Système de correction d'erreur orthogonale à piste unique
AU552691B2 (en) Optically reading a disk shaped record carrier
CA2159291A1 (fr) Appareil d'enregistrement de signaux numeriques dans lequel le signal de modulation nrzi entrelace est engendre par un signal de precodage solitaire de type 2t
AU1348683A (en) Pcm audio recording
EP0174666A3 (en) Recording disk data playback apparatus
HK12193A (en) Improvements in and relating to optically readable discs and disc playback apparatus
EP0085517A3 (en) Apparatus for recording and/or reproducing digital signals
ES8506922A1 (es) Un aparato para reproducir informacion desde un soporte de registro opticamente legible
GB8408564D0 (en) Synchronization of rotary head magnetic recording devices
EP0270118A3 (en) Apparatus for recording and reading an optical disc, having reduced offset in its tracking error signal
AU1925383A (en) V.t.r. tracking control
GB2227354B (en) Record information reproducing system
GB8522728D0 (en) Recording disk data playback
AU561040B2 (en) Direct read after write optical recording
AU4713085A (en) Time base corrector
CA2112452A1 (fr) Presentations ameliorees de donnees et operations machines pour corriger les erreurs

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed