JPS5445113A - Magnetic disc device - Google Patents

Magnetic disc device

Info

Publication number
JPS5445113A
JPS5445113A JP10692778A JP10692778A JPS5445113A JP S5445113 A JPS5445113 A JP S5445113A JP 10692778 A JP10692778 A JP 10692778A JP 10692778 A JP10692778 A JP 10692778A JP S5445113 A JPS5445113 A JP S5445113A
Authority
JP
Japan
Prior art keywords
magnetic disc
disc device
magnetic
disc
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
JP10692778A
Other languages
Japanese (ja)
Inventor
Enu Makunaito Robaato
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.)
Hewlett Packard Japan Inc
Original Assignee
Yokogawa Hewlett Packard 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 Yokogawa Hewlett Packard Ltd filed Critical Yokogawa Hewlett Packard Ltd
Publication of JPS5445113A publication Critical patent/JPS5445113A/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
    • G11B5/48—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
    • G11B5/54—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 with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • 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
    • G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633—Servo formatting
JP10692778A 1977-08-31 1978-08-31 Magnetic disc device Pending JPS5445113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82931277A 1977-08-31 1977-08-31

Publications (1)

Publication Number Publication Date
JPS5445113A true JPS5445113A (en) 1979-04-10

Family

ID=25254162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10692778A Pending JPS5445113A (en) 1977-08-31 1978-08-31 Magnetic disc device

Country Status (2)

Country Link
EP (1) EP0000946A3 (en)
JP (1) JPS5445113A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218003A (en) * 1982-06-14 1983-12-19 Pioneer Electronic Corp Recording system
US5317468A (en) * 1991-01-16 1994-05-31 Matsushita Electric Industrial Co., Ltd. Magnetic disk having reserve servo sectors and plural reserve tracks

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472750A (en) * 1981-07-02 1984-09-18 Irwin Magnetic Systems, Inc. Data record with pre-recorded transducer positioning signals, and system for utilizing same
US4462053A (en) * 1981-07-02 1984-07-24 Irwin International, Inc. Method for controlling a disc head
DE102017007547A1 (en) * 2017-08-10 2019-02-14 Martin GmbH für Umwelt- und Energietechnik Energy generation system with a combined heat and power plant and a fermentation plant and method for energy production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593333A (en) * 1969-11-26 1971-07-13 Ibm Position detection for a track following servo system
US3691543A (en) * 1971-02-08 1972-09-12 Ibm Positioning system including servo track configuration and associated demodulator
US3812533A (en) * 1972-12-22 1974-05-21 Vermont Res Corp Information storage unit transducer positioning system
US3838457A (en) * 1973-07-05 1974-09-24 Ibm Track seeking and following servo system
US4027338A (en) * 1975-04-28 1977-05-31 Burroughs Corporation Transducer positioning system for providing coarse positioning
US4052741A (en) * 1975-12-23 1977-10-04 International Business Machines Corporation Track seeking and following
US4048660A (en) * 1975-12-23 1977-09-13 International Business Machines Corporation Record track following and seeking
NL7702570A (en) * 1977-03-10 1978-09-12 Philips Nv MAGNETIC DISK MEMORY AND MAGNETIC DISK FOR THAT MEMORY.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58218003A (en) * 1982-06-14 1983-12-19 Pioneer Electronic Corp Recording system
US5317468A (en) * 1991-01-16 1994-05-31 Matsushita Electric Industrial Co., Ltd. Magnetic disk having reserve servo sectors and plural reserve tracks

Also Published As

Publication number Publication date
EP0000946A2 (en) 1979-03-07
EP0000946A3 (en) 1979-03-21

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