FR2490857B1 - Systeme perfectionne de commande de position de transducteurs de donnees pour memoires de donnees a disques rotatifs - Google Patents

Systeme perfectionne de commande de position de transducteurs de donnees pour memoires de donnees a disques rotatifs

Info

Publication number
FR2490857B1
FR2490857B1 FR818117964A FR8117964A FR2490857B1 FR 2490857 B1 FR2490857 B1 FR 2490857B1 FR 818117964 A FR818117964 A FR 818117964A FR 8117964 A FR8117964 A FR 8117964A FR 2490857 B1 FR2490857 B1 FR 2490857B1
Authority
FR
France
Prior art keywords
data
controlling
rotary disc
improved system
transducers
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.)
Expired
Application number
FR818117964A
Other languages
English (en)
Other versions
FR2490857A1 (fr
Inventor
Joel N Harrison
Donald V Daniels
David A Brown
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.)
Quantum Corp
Original Assignee
Quantum 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 Quantum Corp filed Critical Quantum Corp
Publication of FR2490857A1 publication Critical patent/FR2490857A1/fr
Application granted granted Critical
Publication of FR2490857B1 publication Critical patent/FR2490857B1/fr
Expired 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
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
    • G11B5/5556—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means with track following after a "seek"
FR818117964A 1980-09-24 1981-09-23 Systeme perfectionne de commande de position de transducteurs de donnees pour memoires de donnees a disques rotatifs Expired FR2490857B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/190,198 US4396959A (en) 1980-09-24 1980-09-24 Data transducer position control system for rotating disk data storage equipment

Publications (2)

Publication Number Publication Date
FR2490857A1 FR2490857A1 (fr) 1982-03-26
FR2490857B1 true FR2490857B1 (fr) 1989-04-28

Family

ID=22700390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR818117964A Expired FR2490857B1 (fr) 1980-09-24 1981-09-23 Systeme perfectionne de commande de position de transducteurs de donnees pour memoires de donnees a disques rotatifs

Country Status (7)

Country Link
US (1) US4396959A (fr)
JP (1) JPS5786910A (fr)
DE (1) DE3137701A1 (fr)
FR (1) FR2490857B1 (fr)
GB (1) GB2083926B (fr)
HK (1) HK93885A (fr)
SG (1) SG64185G (fr)

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DE4314167C2 (de) * 1992-04-30 1995-04-13 Hitachi Metals Ltd Magnetanordnung für einen Pendel-Stellantrieb
US5576583A (en) * 1992-04-30 1996-11-19 Hitachi Metals, Ltd. Swing-type actuator
US5396384A (en) * 1992-05-12 1995-03-07 Quantum Corporation Hard disk drive architecture
US5465343A (en) * 1993-04-30 1995-11-07 Quantum Corporation Shared memory array for data block and control program storage in disk drive
US5617388A (en) * 1993-05-31 1997-04-01 Sony Corporation Disc recording/reproducing apparatus which uses stored eccentricity data to maintain the read/write head at a constant radial position during a stand-by mode
US5491395A (en) * 1993-09-17 1996-02-13 Maxtor Corporation TUT servo IC architecture
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JP3582970B2 (ja) * 1997-11-04 2004-10-27 富士通株式会社 アダプタ、及びアダプタとディスクカートリッジ駆動装置との間の通信方法
JP2000337928A (ja) * 1999-05-27 2000-12-08 Sony Corp 位置検出装置および位置検出信号の補正方法
US7619844B1 (en) 2005-12-30 2009-11-17 Western Digital Technologies, Inc. Disk drive comprising a mechanical position sensor to prevent a runaway condition
US7495857B1 (en) 2005-12-30 2009-02-24 Western Digital Technologies, Inc. Servo writing a disk drive by writing spiral tracks using a mechanical position sensor
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Also Published As

Publication number Publication date
DE3137701A1 (de) 1982-05-06
SG64185G (en) 1986-05-02
US4396959A (en) 1983-08-02
DE3137701C2 (fr) 1989-05-03
JPS5786910A (en) 1982-05-31
GB2083926A (en) 1982-03-31
FR2490857A1 (fr) 1982-03-26
HK93885A (en) 1985-11-29
GB2083926B (en) 1985-05-22

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Legal Events

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ST Notification of lapse