JPS54125010A - Magnetic disc apparatus - Google Patents

Magnetic disc apparatus

Info

Publication number
JPS54125010A
JPS54125010A JP3251778A JP3251778A JPS54125010A JP S54125010 A JPS54125010 A JP S54125010A JP 3251778 A JP3251778 A JP 3251778A JP 3251778 A JP3251778 A JP 3251778A JP S54125010 A JPS54125010 A JP S54125010A
Authority
JP
Japan
Prior art keywords
track
signal
track position
disc
quantity detecting
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
JP3251778A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
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 JP3251778A priority Critical patent/JPS54125010A/en
Publication of JPS54125010A publication Critical patent/JPS54125010A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make possible highly accurate positioning by writing the position information to each track of a tape disc, comparing the same with the track position information from a servo disc at the track follow-up controlling and correcting the track position information from the servo disc.
CONSTITUTION: The signal from a track position write information generating circuit 49 is written in the track position information recording region of a tape disc via write driving circuit 51. Next, a data head 48 is moved to the track desired to be moved. When track follow-up control is started, the signal from a data track positin deviation quantity detecting circuit 53 and the signal from a track positin deviation quantity detecting circuit 57 by a servo disc are compared in a track position deviation correcting circuit 58, whereby the signal from the track position deviation quantity detecting circuit 57 by the servo disc is corrected so that it becomes equal to the signal value from the data track position deviation quantity detecting circuit 53.
COPYRIGHT: (C)1979,JPO&Japio
JP3251778A 1978-03-22 1978-03-22 Magnetic disc apparatus Pending JPS54125010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3251778A JPS54125010A (en) 1978-03-22 1978-03-22 Magnetic disc apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3251778A JPS54125010A (en) 1978-03-22 1978-03-22 Magnetic disc apparatus

Publications (1)

Publication Number Publication Date
JPS54125010A true JPS54125010A (en) 1979-09-28

Family

ID=12361151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3251778A Pending JPS54125010A (en) 1978-03-22 1978-03-22 Magnetic disc apparatus

Country Status (1)

Country Link
JP (1) JPS54125010A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134367A (en) * 1980-02-20 1981-10-21 Mitsubishi Electric Corp Disk device
JPS56156973A (en) * 1980-04-03 1981-12-03 Philips Nv Tracking device
JPS57203264A (en) * 1981-06-05 1982-12-13 Hitachi Ltd Magnetic disc driving device
US4638384A (en) * 1985-11-19 1987-01-20 Rodime, Plc Head positioning mechanism for rotating disk data storage system
JPH02254687A (en) * 1989-03-28 1990-10-15 Toshiba Corp Head positioning controller for data recording and reproducing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56134367A (en) * 1980-02-20 1981-10-21 Mitsubishi Electric Corp Disk device
JPS56156973A (en) * 1980-04-03 1981-12-03 Philips Nv Tracking device
JPS57203264A (en) * 1981-06-05 1982-12-13 Hitachi Ltd Magnetic disc driving device
US4638384A (en) * 1985-11-19 1987-01-20 Rodime, Plc Head positioning mechanism for rotating disk data storage system
JPH02254687A (en) * 1989-03-28 1990-10-15 Toshiba Corp Head positioning controller for data recording and reproducing device

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