JPS573228A - Magnetic disk - Google Patents

Magnetic disk

Info

Publication number
JPS573228A
JPS573228A JP7798080A JP7798080A JPS573228A JP S573228 A JPS573228 A JP S573228A JP 7798080 A JP7798080 A JP 7798080A JP 7798080 A JP7798080 A JP 7798080A JP S573228 A JPS573228 A JP S573228A
Authority
JP
Japan
Prior art keywords
storage
servo
pole pieces
bit
magnetic pole
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.)
Pending
Application number
JP7798080A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Kitamura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7798080A priority Critical patent/JPS573228A/en
Publication of JPS573228A publication Critical patent/JPS573228A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To apply a magnetic disk for high-density digital storage by arraying servo magnetic pole pieces, indicating positions of respective bit cells of recorded data capable of holding specific information, in a data storage area in a disk surface. CONSTITUTION:For storage on and reproduction from a magnetic disk 10, an easily magnetized magnetic body 22, interposing as the 1st data track between a servo track C0 and a servo track C1, is regarded as a storage track. Further, a magnetized area surrounded with servo magnetic pole pieces is considered to be a storage area for every bit, and this is used as a bit storage cell. Those bit storage cells are located in the order of a bit storage cell 200 surrounded with servo magnetic pole pieces 100, 101, 110, and 111 and a bit storage cell 201 surrounded by servo magnetic pole pieces 101, 102, 111, and 112. Thus, servo magnetic pole pieces with special magnetic characteristics are located properly for respective bits of a data track, enabling high-density storage.
JP7798080A 1980-06-10 1980-06-10 Magnetic disk Pending JPS573228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7798080A JPS573228A (en) 1980-06-10 1980-06-10 Magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7798080A JPS573228A (en) 1980-06-10 1980-06-10 Magnetic disk

Publications (1)

Publication Number Publication Date
JPS573228A true JPS573228A (en) 1982-01-08

Family

ID=13649023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7798080A Pending JPS573228A (en) 1980-06-10 1980-06-10 Magnetic disk

Country Status (1)

Country Link
JP (1) JPS573228A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893299A (en) * 1983-04-28 1990-01-09 Humberstone Victor C Magneto-optic data storage technique
US7417826B2 (en) * 2003-03-26 2008-08-26 Tdk Corporation Magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893299A (en) * 1983-04-28 1990-01-09 Humberstone Victor C Magneto-optic data storage technique
US7417826B2 (en) * 2003-03-26 2008-08-26 Tdk Corporation Magnetic recording medium

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