IT998117B - Apparecchiatura perfezionata per poter utilizzare mezzi di registrazione magnetici pre sentanti piccole aree difettose particolarmente per sistemi di memoria - Google Patents

Apparecchiatura perfezionata per poter utilizzare mezzi di registrazione magnetici pre sentanti piccole aree difettose particolarmente per sistemi di memoria

Info

Publication number
IT998117B
IT998117B IT2458073A IT2458073A IT998117B IT 998117 B IT998117 B IT 998117B IT 2458073 A IT2458073 A IT 2458073A IT 2458073 A IT2458073 A IT 2458073A IT 998117 B IT998117 B IT 998117B
Authority
IT
Italy
Prior art keywords
perfected
equipment
magnetic recording
recording means
memory systems
Prior art date
Application number
IT2458073A
Other languages
English (en)
Italian (it)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT998117B publication Critical patent/IT998117B/it

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
    • G11B20/1883—Methods for assignment of alternate areas for defective areas
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
IT2458073A 1972-06-07 1973-05-25 Apparecchiatura perfezionata per poter utilizzare mezzi di registrazione magnetici pre sentanti piccole aree difettose particolarmente per sistemi di memoria IT998117B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26068472A 1972-06-07 1972-06-07

Publications (1)

Publication Number Publication Date
IT998117B true IT998117B (it) 1976-01-20

Family

ID=22990179

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2458073A IT998117B (it) 1972-06-07 1973-05-25 Apparecchiatura perfezionata per poter utilizzare mezzi di registrazione magnetici pre sentanti piccole aree difettose particolarmente per sistemi di memoria

Country Status (13)

Country Link
JP (1) JPS5751162B2 (ja)
AU (1) AU475711B2 (ja)
BE (1) BE799689A (ja)
BR (1) BR7304237D0 (ja)
CA (1) CA1020666A (ja)
CH (1) CH561448A5 (ja)
DE (1) DE2328025C3 (ja)
DK (1) DK143580C (ja)
FR (1) FR2188235B1 (ja)
GB (1) GB1404541A (ja)
IT (1) IT998117B (ja)
NL (1) NL181533C (ja)
SE (1) SE393208B (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073935B (en) * 1980-04-11 1983-12-21 Rca Corp Tape format to facilitate error concealment and apparatus for recording and/or replaying same
JPS6095654A (ja) * 1983-10-28 1985-05-29 Sharp Corp シーケンシャルアクセス型フロッピーディスク装置における複数ファイル管理方式
JPS6297177A (ja) * 1985-10-24 1987-05-06 Nec Corp 磁気テ−プ装置
JPH0668886B2 (ja) * 1986-11-10 1994-08-31 株式会社日立製作所 磁気デイスクの欠陥回避制御方式
DE3739161C2 (de) * 1987-11-19 2000-06-15 Grundig Ag Verfahren zur Aufzeichnung und Wiedergabe von Informationssignalen auf ein bzw. von einem Aufzeichnungsmedium
JPH0719393B2 (ja) * 1992-03-30 1995-03-06 株式会社日立製作所 光学的情報処理方法
WO1997007505A1 (fr) * 1995-08-18 1997-02-27 Matsushita Electric Industrial Co., Ltd. Dispositif d'enregistrement et de reproduction d'informations et support d'enregistrement et de reproduction d'informations
CN1390352A (zh) * 1999-10-28 2003-01-08 西加特技术有限责任公司 同步字节填充

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937368A (en) * 1956-12-12 1960-05-17 Bell Telephone Labor Inc Means for detecting marking and bypassing defective areas in a magnetic record medium
US3588855A (en) * 1968-10-14 1971-06-28 Ibm Data gap responding apparatus
JPS474054U (ja) * 1971-01-28 1972-09-08

Also Published As

Publication number Publication date
GB1404541A (en) 1975-09-03
NL181533B (nl) 1987-04-01
BR7304237D0 (pt) 1974-07-25
DE2328025B2 (de) 1975-03-27
BE799689A (fr) 1973-09-17
FR2188235A1 (ja) 1974-01-18
DK143580C (da) 1982-01-25
JPS4952612A (ja) 1974-05-22
CH561448A5 (ja) 1975-04-30
AU475711B2 (en) 1976-09-02
NL181533C (nl) 1987-09-01
JPS5751162B2 (ja) 1982-10-30
CA1020666A (en) 1977-11-08
DE2328025C3 (de) 1975-11-06
DE2328025A1 (de) 1973-12-20
FR2188235B1 (ja) 1976-11-12
SE393208B (sv) 1977-05-02
NL7307989A (ja) 1973-12-11
DK143580B (da) 1981-09-07
AU5620173A (en) 1974-11-28

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