FR2142769B1 - - Google Patents

Info

Publication number
FR2142769B1
FR2142769B1 FR717123131A FR7123131A FR2142769B1 FR 2142769 B1 FR2142769 B1 FR 2142769B1 FR 717123131 A FR717123131 A FR 717123131A FR 7123131 A FR7123131 A FR 7123131A FR 2142769 B1 FR2142769 B1 FR 2142769B1
Authority
FR
France
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
FR717123131A
Other languages
French (fr)
Other versions
FR2142769A1 (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.)
Bull SA
Original Assignee
Societe Industrielle Honeywell Bull
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 Societe Industrielle Honeywell Bull filed Critical Societe Industrielle Honeywell Bull
Priority to FR717123131A priority Critical patent/FR2142769B1/fr
Priority to CH823972A priority patent/CH560444A5/xx
Priority to NL7207923A priority patent/NL7207923A/xx
Priority to US00264640A priority patent/US3827081A/en
Priority to BE785236A priority patent/BE785236A/en
Priority to GB2939172A priority patent/GB1377670A/en
Priority to SU1800262A priority patent/SU438206A3/en
Priority to CA145,609A priority patent/CA965182A/en
Priority to IT26121/72A priority patent/IT956807B/en
Priority to DE19722230946 priority patent/DE2230946A1/en
Publication of FR2142769A1 publication Critical patent/FR2142769A1/fr
Application granted granted Critical
Publication of FR2142769B1 publication Critical patent/FR2142769B1/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
    • 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
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
FR717123131A 1971-06-24 1971-06-24 Expired FR2142769B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR717123131A FR2142769B1 (en) 1971-06-24 1971-06-24
CH823972A CH560444A5 (en) 1971-06-24 1972-06-02
NL7207923A NL7207923A (en) 1971-06-24 1972-06-09
US00264640A US3827081A (en) 1971-06-24 1972-06-20 Device for the displacement of magnetic read/write heads
BE785236A BE785236A (en) 1971-06-24 1972-06-22 CUSHIONING DEVICE FOR MOVING MAGNETIC HEADS
GB2939172A GB1377670A (en) 1971-06-24 1972-06-22 Disc memory units
SU1800262A SU438206A3 (en) 1971-06-24 1972-06-23 Device for moving magnetic heads
CA145,609A CA965182A (en) 1971-06-24 1972-06-23 Dispositif a amortissement pour le deplacement de tetes magnetiques
IT26121/72A IT956807B (en) 1971-06-24 1972-06-23 DAMPING DEVICE FOR THE MOVING OF MAGNETIC HEADS
DE19722230946 DE2230946A1 (en) 1971-06-24 1972-06-23 Device for adjusting magnetic heads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717123131A FR2142769B1 (en) 1971-06-24 1971-06-24

Publications (2)

Publication Number Publication Date
FR2142769A1 FR2142769A1 (en) 1973-02-02
FR2142769B1 true FR2142769B1 (en) 1973-06-29

Family

ID=9079271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717123131A Expired FR2142769B1 (en) 1971-06-24 1971-06-24

Country Status (10)

Country Link
US (1) US3827081A (en)
BE (1) BE785236A (en)
CA (1) CA965182A (en)
CH (1) CH560444A5 (en)
DE (1) DE2230946A1 (en)
FR (1) FR2142769B1 (en)
GB (1) GB1377670A (en)
IT (1) IT956807B (en)
NL (1) NL7207923A (en)
SU (1) SU438206A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030132A (en) * 1975-03-27 1977-06-14 Memorex Corporation Dual mode velocity servo control for a linear actuator motor
US4131924A (en) * 1977-10-03 1978-12-26 Burroughs Corporation Flexure mounted magnetic head positioner for high-speed translation
US4827162A (en) * 1987-03-02 1989-05-02 Unisys Corp. Controlled drag for magnet actuator
DE69434454T2 (en) * 1993-12-15 2006-03-30 Seagate Removable Storage Solutions Llc. Voice coil controlled positioner for large and fine positioning of a magnetic head in a multi track device
US20030218390A1 (en) * 2002-05-22 2003-11-27 Story Huang Voice-coil motor for picking up chips

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432581A (en) * 1943-07-26 1947-12-16 Milo F Miller Electrical switching apparatus
US2481398A (en) * 1945-06-29 1949-09-06 Armour Res Found Selector system for magnetic wire reproducers
GB1056888A (en) * 1964-10-08 1967-02-01 Flight Refueling Ltd Improvements in or relating to electro-magnetic actuators

Also Published As

Publication number Publication date
SU438206A3 (en) 1974-07-30
CH560444A5 (en) 1975-03-27
IT956807B (en) 1973-10-10
DE2230946A1 (en) 1972-12-28
NL7207923A (en) 1972-12-28
BE785236A (en) 1972-10-16
CA965182A (en) 1975-03-25
US3827081A (en) 1974-07-30
GB1377670A (en) 1974-12-18
FR2142769A1 (en) 1973-02-02

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Legal Events

Date Code Title Description
ST Notification of lapse