GB8312787D0 - Data storage discs - Google Patents

Data storage discs

Info

Publication number
GB8312787D0
GB8312787D0 GB8312787A GB8312787A GB8312787D0 GB 8312787 D0 GB8312787 D0 GB 8312787D0 GB 8312787 A GB8312787 A GB 8312787A GB 8312787 A GB8312787 A GB 8312787A GB 8312787 D0 GB8312787 D0 GB 8312787D0
Authority
GB
United Kingdom
Prior art keywords
data storage
storage discs
discs
data
storage
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.)
Withdrawn
Application number
GB8312787A
Other versions
GB2139799A (en
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.)
AGC Glass Europe SA
Original Assignee
Glaverbel Belgium SA
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 Glaverbel Belgium SA filed Critical Glaverbel Belgium SA
Priority to GB8312787A priority Critical patent/GB2139799A/en
Publication of GB8312787D0 publication Critical patent/GB8312787D0/en
Publication of GB2139799A publication Critical patent/GB2139799A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/005—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs flexible discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/24018—Laminated discs
    • G11B7/24021—Laminated discs provided with a special shape or structure for centering or eccentricity prevention, e.g. alignment
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
GB8312787A 1983-05-10 1983-05-10 Data storage discs and methods of manufacturing same Withdrawn GB2139799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8312787A GB2139799A (en) 1983-05-10 1983-05-10 Data storage discs and methods of manufacturing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8312787A GB2139799A (en) 1983-05-10 1983-05-10 Data storage discs and methods of manufacturing same

Publications (2)

Publication Number Publication Date
GB8312787D0 true GB8312787D0 (en) 1983-06-15
GB2139799A GB2139799A (en) 1984-11-14

Family

ID=10542455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8312787A Withdrawn GB2139799A (en) 1983-05-10 1983-05-10 Data storage discs and methods of manufacturing same

Country Status (1)

Country Link
GB (1) GB2139799A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397737B (en) * 1992-06-10 1994-06-27 Koninkl Philips Electronics Nv DEVICE FOR PLAYING A DISK-SHAPED RECORD CARRIER

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246812B (en) * 1962-12-17 1967-08-10 Soemmerda Bueromaschwerk Magnetic storage
GB1168753A (en) * 1967-05-11 1969-10-29 Matsushita Electric Ind Co Ltd Rotary Disc Unit for Use in Magnetic Recording and Reproducing.
GB1321088A (en) * 1970-08-21 1973-06-20 British Broadcasting Corp Magnetic storage device
GB1394713A (en) * 1971-07-23 1975-05-21 Matsushita Electric Ind Co Ltd Magnetic recording devices
DD137986A1 (en) * 1976-11-25 1979-10-03 Reinhard Jurisch PLATE MORE RECORDING DEVICE
DE3066723D1 (en) * 1979-12-10 1984-03-29 Ibm Methods of fabricating magnetic records, magnetic records so fabricated, and magnetic recording and reproducing apparatus comprising such fabricated magnetic records

Also Published As

Publication number Publication date
GB2139799A (en) 1984-11-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)