JPS55139669A - Disk device - Google Patents

Disk device

Info

Publication number
JPS55139669A
JPS55139669A JP4765579A JP4765579A JPS55139669A JP S55139669 A JPS55139669 A JP S55139669A JP 4765579 A JP4765579 A JP 4765579A JP 4765579 A JP4765579 A JP 4765579A JP S55139669 A JPS55139669 A JP S55139669A
Authority
JP
Japan
Prior art keywords
pattern
servo
head
recording
servo pattern
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
JP4765579A
Other languages
Japanese (ja)
Inventor
Masayoshi Kamo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4765579A priority Critical patent/JPS55139669A/en
Publication of JPS55139669A publication Critical patent/JPS55139669A/en
Pending legal-status Critical Current

Links

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE: To attain easily rerecording on an erased recording meidum by reproducing a servo pattern in a track positioning inoformation area via the opposite head and by generating the servo pattern by a timing circuit in a disk device.
CONSTITUTION: Magnetic head moving unit 16 is put into operation to move heads 9 and 11 to the outmost circumferential servo track position where the servo pattern of magnetic head 11 has been recorded. Head 11 reproduce the servo pattern in a track positioning information area and a track positioning control circuit is also put into operation by the information to position waveform of a pattern in the information area of recording medium 2 is A/D-converted by information processing circuit 21 and servo timing circuit 22 extracts a pattern signal for timing corrections; and recording circuit 20 flows a recording current to head 9 and the servo pattern is recorded in the informatin area of medium 1. Consequently, the rerecording of pattern comes into effect easily.
COPYRIGHT: (C)1980,JPO&Japio
JP4765579A 1979-04-18 1979-04-18 Disk device Pending JPS55139669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4765579A JPS55139669A (en) 1979-04-18 1979-04-18 Disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4765579A JPS55139669A (en) 1979-04-18 1979-04-18 Disk device

Publications (1)

Publication Number Publication Date
JPS55139669A true JPS55139669A (en) 1980-10-31

Family

ID=12781262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4765579A Pending JPS55139669A (en) 1979-04-18 1979-04-18 Disk device

Country Status (1)

Country Link
JP (1) JPS55139669A (en)

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