JPS6467704A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6467704A
JPS6467704A JP22308887A JP22308887A JPS6467704A JP S6467704 A JPS6467704 A JP S6467704A JP 22308887 A JP22308887 A JP 22308887A JP 22308887 A JP22308887 A JP 22308887A JP S6467704 A JPS6467704 A JP S6467704A
Authority
JP
Japan
Prior art keywords
magnetic disk
track width
write
read
data
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
JP22308887A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Ito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP22308887A priority Critical patent/JPS6467704A/en
Publication of JPS6467704A publication Critical patent/JPS6467704A/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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc

Landscapes

  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To stably execute the read and write of data in the inner circumference of a magnetic disk by forming the track width of an inner head wider than the track width of an outer head. CONSTITUTION:The titled device has a magnetic disk 10 to revolve with a constant revolving number, an inner head 12 to execute the read and write of the data to an inner area 11 of the magnetic disk 10 and an outer head 14 to execute the read and write of the data to an outer area 13 of the magnetic disk 10. An track width 15 of the inner area 11 is formed wider than a track width 16 of the outer area 13. Thus, since the track width 15 of the inner area 11, in which a circumferential speed is low, is made wide, recording density can be lowered in the inner area 11 and the stability of the read and write of the data can be secured.
JP22308887A 1987-09-08 1987-09-08 Magnetic disk device Pending JPS6467704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22308887A JPS6467704A (en) 1987-09-08 1987-09-08 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22308887A JPS6467704A (en) 1987-09-08 1987-09-08 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS6467704A true JPS6467704A (en) 1989-03-14

Family

ID=16792649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22308887A Pending JPS6467704A (en) 1987-09-08 1987-09-08 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6467704A (en)

Similar Documents

Publication Publication Date Title
DE68916112D1 (en) Magnetic disk storage recording with variable track width and variable track density.
JPS5363002A (en) Signal recording system and disk type medium for recording signal
JPS6410463A (en) Magnetic disk
JPS6467704A (en) Magnetic disk device
DE3578693D1 (en) MAGNETIC RECORDING AND / OR PLAYBACK WITH ROTATING HEADS.
EP0347076A3 (en) Aligned stretched surface recording medium
JPS55101165A (en) Magnetic head movable arm assembling
JPS5266338A (en) Pattern information record/play system
DE69014494D1 (en) Magnetic tape recorder and player with rotating head.
DE3884355D1 (en) Digital magnetic recording and reproducing device with rotating head.
JPS5473605A (en) Azimuth recording method using double film
JPS5215307A (en) Data reader
JPS5216205A (en) Regenerator of magnetic record
JPS5374408A (en) Tape recorder
JPS5374008A (en) Servo signal writing method
JPS56153561A (en) Magnetic recorder and reproducer for magnetic medium
JPS56107373A (en) Magnetic disc device
JPS6482290A (en) Magnetic card recorder
FR2260160A2 (en) Magnetic disc recording system - uses disc surface divided into data and position tracks
JPS5369014A (en) Magnetic memory system
JPS55163409A (en) Production of magnetic recording rotary encoder
JPS51123623A (en) A magnetic head
JPS57133575A (en) Storage medium
JPS55108918A (en) Recording system
JPS53124408A (en) Magnetic recorder and reproducer