JPS51123618A - A magnetic disk memory unit - Google Patents

A magnetic disk memory unit

Info

Publication number
JPS51123618A
JPS51123618A JP4752675A JP4752675A JPS51123618A JP S51123618 A JPS51123618 A JP S51123618A JP 4752675 A JP4752675 A JP 4752675A JP 4752675 A JP4752675 A JP 4752675A JP S51123618 A JPS51123618 A JP S51123618A
Authority
JP
Japan
Prior art keywords
magnetic disk
memory unit
disk memory
eliminating
information
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
JP4752675A
Other languages
Japanese (ja)
Inventor
Yoichi Kawakubo
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4752675A priority Critical patent/JPS51123618A/en
Publication of JPS51123618A publication Critical patent/JPS51123618A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE: To shorten read/write time by eliminating date track following action by writing servo information on a certain portion of the magnetic disk on which related normal information is written down.
COPYRIGHT: (C)1976,JPO&Japio
JP4752675A 1975-04-21 1975-04-21 A magnetic disk memory unit Pending JPS51123618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4752675A JPS51123618A (en) 1975-04-21 1975-04-21 A magnetic disk memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4752675A JPS51123618A (en) 1975-04-21 1975-04-21 A magnetic disk memory unit

Publications (1)

Publication Number Publication Date
JPS51123618A true JPS51123618A (en) 1976-10-28

Family

ID=12777554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4752675A Pending JPS51123618A (en) 1975-04-21 1975-04-21 A magnetic disk memory unit

Country Status (1)

Country Link
JP (1) JPS51123618A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622267A (en) * 1979-07-31 1981-03-02 Fujitsu Ltd Write-in system of servo information
JPS5687262A (en) * 1979-12-19 1981-07-15 Fujitsu Ltd Servo writing method of magnetic disk device
JPS56134365A (en) * 1980-02-14 1981-10-21 Mitsubishi Electric Corp Recording system for head positioning information

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622267A (en) * 1979-07-31 1981-03-02 Fujitsu Ltd Write-in system of servo information
JPS5687262A (en) * 1979-12-19 1981-07-15 Fujitsu Ltd Servo writing method of magnetic disk device
JPS6214911B2 (en) * 1979-12-19 1987-04-04 Fujitsu Ltd
JPS56134365A (en) * 1980-02-14 1981-10-21 Mitsubishi Electric Corp Recording system for head positioning information

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