JPS6435789A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6435789A
JPS6435789A JP19222887A JP19222887A JPS6435789A JP S6435789 A JPS6435789 A JP S6435789A JP 19222887 A JP19222887 A JP 19222887A JP 19222887 A JP19222887 A JP 19222887A JP S6435789 A JPS6435789 A JP S6435789A
Authority
JP
Japan
Prior art keywords
head
track
signal
timing
discrimination signal
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
JP19222887A
Other languages
Japanese (ja)
Inventor
Hiroaki Yada
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 Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP19222887A priority Critical patent/JPS6435789A/en
Publication of JPS6435789A publication Critical patent/JPS6435789A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To enable the initial writing of high accuracy with a simple structure by making a tracking servoestate by scanning the track already formed by a recording/reproducing head by the head for position detection and forming an adjacent track with the discrimination signal output obtd. from the position detecting head as the reference in timing. CONSTITUTION:The discrimination signal reproducing output obtd. to a position detecting head 3a by scanning the track 12 on which a servo zone is already formed is fed to a discrimination signal detecting circuit 8, a timing signal is formed and simultaneously with this timing signal the discrimination signal and burst signal in the specified frequency are written in the specified zones 13, 14 of the adjacent track. On the disk face, therefore, the track 12' on which a servozone is arranged in the form of correctly conforming to the diameter direction of a magnetic disk 11 is formed. The writing timing between tracks each other can be conformed without using the exclusive head for clock signal reproduction and the initial writing of a servo information can thus be executed with good synchronous accuracy and simple structure.
JP19222887A 1987-07-31 1987-07-31 Magnetic disk device Pending JPS6435789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19222887A JPS6435789A (en) 1987-07-31 1987-07-31 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19222887A JPS6435789A (en) 1987-07-31 1987-07-31 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS6435789A true JPS6435789A (en) 1989-02-06

Family

ID=16287793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19222887A Pending JPS6435789A (en) 1987-07-31 1987-07-31 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6435789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07314431A (en) * 1994-05-21 1995-12-05 Kensetsu Kiso Eng Co Ltd Method for kneading curing material in slope stabilizing work

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07314431A (en) * 1994-05-21 1995-12-05 Kensetsu Kiso Eng Co Ltd Method for kneading curing material in slope stabilizing work

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