DE3671558D1 - Kopieren von magnetischen aufzeichnungen. - Google Patents

Kopieren von magnetischen aufzeichnungen.

Info

Publication number
DE3671558D1
DE3671558D1 DE8686901447T DE3671558T DE3671558D1 DE 3671558 D1 DE3671558 D1 DE 3671558D1 DE 8686901447 T DE8686901447 T DE 8686901447T DE 3671558 T DE3671558 T DE 3671558T DE 3671558 D1 DE3671558 D1 DE 3671558D1
Authority
DE
Germany
Prior art keywords
data information
disc
track changing
magnetic records
discs
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
DE8686901447T
Other languages
English (en)
Inventor
Phillip Gardner
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 Magnescale Inc
Original Assignee
Tape Automation Ltd
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 Tape Automation Ltd filed Critical Tape Automation Ltd
Application granted granted Critical
Publication of DE3671558D1 publication Critical patent/DE3671558D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B20/182—Testing using test patterns
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Soft Magnetic Materials (AREA)
  • Thin Magnetic Films (AREA)
DE8686901447T 1985-02-25 1986-02-21 Kopieren von magnetischen aufzeichnungen. Expired - Lifetime DE3671558D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858504765A GB8504765D0 (en) 1985-02-25 1985-02-25 Magnetic recordings
PCT/GB1986/000096 WO1986005027A1 (en) 1985-02-25 1986-02-21 Copying of magnetic recordings

Publications (1)

Publication Number Publication Date
DE3671558D1 true DE3671558D1 (de) 1990-06-28

Family

ID=10575025

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686901447T Expired - Lifetime DE3671558D1 (de) 1985-02-25 1986-02-21 Kopieren von magnetischen aufzeichnungen.

Country Status (11)

Country Link
US (1) US4725899A (de)
EP (1) EP0215046B1 (de)
JP (1) JPS62501941A (de)
KR (1) KR870700163A (de)
AT (1) ATE53139T1 (de)
AU (1) AU5516186A (de)
CA (1) CA1258525A (de)
DE (1) DE3671558D1 (de)
ES (1) ES8800479A1 (de)
GB (1) GB8504765D0 (de)
WO (1) WO1986005027A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827357A (en) * 1986-05-24 1989-05-02 Fuji Photo Film Co., Ltd. Apparatus for copying modulated video signals from recording medium to recording medium including color and chroma correction
JP2625754B2 (ja) * 1987-09-08 1997-07-02 松下電器産業株式会社 光学式ディスク再生装置
US5777811A (en) * 1996-07-17 1998-07-07 Computer Performance, Inc. Digital data duplicating system
TW342495B (en) * 1996-07-22 1998-10-11 Matsushita Electric Ind Co Ltd Master information carrier, method of producing the same, and method for recording master information signal on magnetic recording medium
JP3329259B2 (ja) 1998-03-20 2002-09-30 松下電器産業株式会社 マスター情報担体、および、磁気記録媒体の製造方法
JP3361740B2 (ja) 1998-03-23 2003-01-07 松下電器産業株式会社 マスター情報磁気記録装置及び磁気記録媒体の製造方法
CN1149542C (zh) 1998-10-29 2004-05-12 松下电器产业株式会社 主信息载体和使用了主信息载体的磁记录媒体的制造方法
JP4130884B2 (ja) * 2002-09-09 2008-08-06 ソニー株式会社 再生装置、再生方法
US6987631B2 (en) * 2002-11-15 2006-01-17 Iomega Corporation Data read/write method and apparatus
US9823962B2 (en) * 2015-04-22 2017-11-21 Nxp Usa, Inc. Soft error detection in a memory system
US10013192B2 (en) 2016-08-17 2018-07-03 Nxp Usa, Inc. Soft error detection in a memory system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771143A (en) * 1972-06-01 1973-11-06 Burroughs Corp Method and apparatus for providing alternate storage areas on a magnetic disk pack
US3805284A (en) * 1972-09-18 1974-04-16 Burroughs Corp Digital data copy duplication method and apparatus utilizing bit to bit data verification
JPS5814616B2 (ja) * 1974-09-28 1983-03-19 バスフ アクチェン ゲゼルシャフト ジキキロクタンタイトクニジキエンバンノ ザンリユウジソクミツドノヒハカイソクテイソウチ
GB1554641A (en) * 1975-08-11 1979-10-24 Casio Computer Co Ltd Data-recording device
US4375655A (en) * 1981-01-02 1983-03-01 Memory Control Technology Corporation Universal digital data copying system
JPS57162583A (en) * 1981-03-30 1982-10-06 Sony Corp Static picture peproducer
US4471390A (en) * 1982-06-25 1984-09-11 Dennison Manufacturing Company Flexible diskette data duplication

Also Published As

Publication number Publication date
WO1986005027A1 (en) 1986-08-28
ATE53139T1 (de) 1990-06-15
ES8800479A1 (es) 1987-11-16
AU5516186A (en) 1986-09-10
ES552042A0 (es) 1987-11-16
EP0215046B1 (de) 1990-05-23
GB8504765D0 (en) 1985-03-27
JPS62501941A (ja) 1987-07-30
EP0215046A1 (de) 1987-03-25
CA1258525A (en) 1989-08-15
US4725899A (en) 1988-02-16
KR870700163A (ko) 1987-03-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8327 Change in the person/name/address of the patent owner

Owner name: SONY MAGNESCALE INC., TOKIO/TOKYO, JP

8328 Change in the person/name/address of the agent

Free format text: MEYER, L., DIPL.-ING., PAT.-ANW., 20354 HAMBURG

8339 Ceased/non-payment of the annual fee