GB1505180A - System for compensating for temperature variations in a magnetic disc drive - Google Patents

System for compensating for temperature variations in a magnetic disc drive

Info

Publication number
GB1505180A
GB1505180A GB29989/75A GB2998975A GB1505180A GB 1505180 A GB1505180 A GB 1505180A GB 29989/75 A GB29989/75 A GB 29989/75A GB 2998975 A GB2998975 A GB 2998975A GB 1505180 A GB1505180 A GB 1505180A
Authority
GB
United Kingdom
Prior art keywords
compensating
disc drive
magnetic disc
temperature variations
variations
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
GB29989/75A
Other languages
English (en)
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of GB1505180A publication Critical patent/GB1505180A/en
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
    • G11B5/58—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
    • G11B5/59627—Aligning for runout, eccentricity or offset compensation
GB29989/75A 1974-07-18 1975-07-17 System for compensating for temperature variations in a magnetic disc drive Expired GB1505180A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489692A US3900782A (en) 1974-07-18 1974-07-18 System for compensating for temperature variations in a magnetic disc drive

Publications (1)

Publication Number Publication Date
GB1505180A true GB1505180A (en) 1978-03-30

Family

ID=23944891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29989/75A Expired GB1505180A (en) 1974-07-18 1975-07-17 System for compensating for temperature variations in a magnetic disc drive

Country Status (6)

Country Link
US (1) US3900782A (enExample)
JP (1) JPS6011388B2 (enExample)
BE (1) BE831478A (enExample)
DE (1) DE2520634C2 (enExample)
FR (1) FR2279188A1 (enExample)
GB (1) GB1505180A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556681A (en) * 1976-02-06 1979-11-28 Data Recording Instr Co Magnetic disc file systems
GB1516239A (en) * 1976-12-09 1978-06-28 Burroughs Corp Positioning system and method particularly useful for magnetic disc drives
FR2373819A1 (fr) * 1976-12-09 1978-07-07 Burroughs Corp Installation et procede de positionnement notamment pour tetes de lecture de disque
US4207601A (en) * 1978-08-01 1980-06-10 Pertec Computer Corporation Transient temperature compensation for moving head disk drive
US4602305A (en) * 1983-05-23 1986-07-22 Seagate Technology Magnetic disc memory apparatus incorporating temperature compensation
US4701902A (en) * 1984-04-27 1987-10-20 Pioneer Electronic Corporation Automatic loading disc player
JPS61115279A (ja) * 1984-11-08 1986-06-02 Otani Denki Kk ヘツドの位置決め装置
JPS6255616U (enExample) * 1985-09-27 1987-04-07
JPS6343187U (enExample) * 1986-09-09 1988-03-23
JPH01100172U (enExample) * 1987-12-22 1989-07-05
DE4318263C2 (de) * 1993-06-02 2003-02-20 Wabco Gmbh & Co Ohg Verfahren und Schaltung zum temperaturkompensierten Anfahren mindestens einer eingelernten SOLL-Position
US5808435A (en) * 1996-05-28 1998-09-15 Kmy Instruments Micropositioning device for disk head testing system
JP3037718U (ja) * 1996-11-12 1997-05-20 恒夫 廣中 商店に空席有りの表示文字を描いた客寄せ案内の点滅看板

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844775A (en) * 1955-01-14 1958-07-22 Honeywell Regulator Co Servomotor selfbalancing measuring apparatus
US3527991A (en) * 1968-06-27 1970-09-08 Westinghouse Electric Corp Servomotor control system in which gain is varied in response to motor temperature
GB1293760A (en) * 1969-05-12 1972-10-25 Nat Res Dev Improvements in or relating to machine tool control systems
US3646420A (en) * 1969-08-20 1972-02-29 Information Storage Systems Balance circuit for dc servos
US3753254A (en) * 1971-08-19 1973-08-14 Information Storage Systems Thermal expansion compensation for disc drive memory
US3720930A (en) * 1972-06-05 1973-03-13 Control Data Corp Thermal expansion compensator
US3775655A (en) * 1972-09-15 1973-11-27 Xerox Corp Method and apparatus for transducer temperature compensation
US3757189A (en) * 1972-12-29 1973-09-04 Century Data Systems Inc Temperature compensation for positioning system

Also Published As

Publication number Publication date
JPS51128509A (en) 1976-11-09
JPS6011388B2 (ja) 1985-03-25
FR2279188B3 (enExample) 1979-04-20
FR2279188A1 (fr) 1976-02-13
DE2520634A1 (de) 1976-01-29
DE2520634C2 (de) 1986-11-06
US3900782A (en) 1975-08-19
BE831478A (fr) 1976-01-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920717