FR2142769A1 - - Google Patents
Info
- Publication number
- FR2142769A1 FR2142769A1 FR7123131A FR7123131A FR2142769A1 FR 2142769 A1 FR2142769 A1 FR 2142769A1 FR 7123131 A FR7123131 A FR 7123131A FR 7123131 A FR7123131 A FR 7123131A FR 2142769 A1 FR2142769 A1 FR 2142769A1
- 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.)
- Granted
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
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 |
DE19722230946 DE2230946A1 (en) | 1971-06-24 | 1972-06-23 | Device for adjusting magnetic heads |
SU1800262A SU438206A1 (en) | 1972-06-23 | Device for moving magnetic heads | |
IT26121/72A IT956807B (en) | 1971-06-24 | 1972-06-23 | DAMPING DEVICE FOR THE MOVING OF MAGNETIC HEADS |
CA145,609A CA965182A (en) | 1971-06-24 | 1972-06-23 | Dispositif a amortissement pour le deplacement de tetes magnetiques |
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 true FR2142769A1 (en) | 1973-02-02 |
FR2142769B1 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 (9)
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) |
Families Citing this family (5)
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 |
EP1306833B1 (en) * | 1993-12-15 | 2005-08-10 | Seagate Removable Storage Solutions LLC | Voice coil driven positioner for coarse and fine positioning of magnetic head in multi track tape drive |
US20030218390A1 (en) * | 2002-05-22 | 2003-11-27 | Story Huang | Voice-coil motor for picking up chips |
Family Cites Families (3)
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 |
-
1971
- 1971-06-24 FR FR717123131A patent/FR2142769B1/fr not_active Expired
-
1972
- 1972-06-02 CH CH823972A patent/CH560444A5/xx not_active IP Right Cessation
- 1972-06-09 NL NL7207923A patent/NL7207923A/xx unknown
- 1972-06-20 US US00264640A patent/US3827081A/en not_active Expired - Lifetime
- 1972-06-22 BE BE785236A patent/BE785236A/en unknown
- 1972-06-22 GB GB2939172A patent/GB1377670A/en not_active Expired
- 1972-06-23 DE DE19722230946 patent/DE2230946A1/en active Pending
- 1972-06-23 IT IT26121/72A patent/IT956807B/en active
- 1972-06-23 CA CA145,609A patent/CA965182A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA965182A (en) | 1975-03-25 |
SU438206A3 (en) | 1974-07-30 |
IT956807B (en) | 1973-10-10 |
BE785236A (en) | 1972-10-16 |
FR2142769B1 (en) | 1973-06-29 |
US3827081A (en) | 1974-07-30 |
DE2230946A1 (en) | 1972-12-28 |
CH560444A5 (en) | 1975-03-27 |
GB1377670A (en) | 1974-12-18 |
NL7207923A (en) | 1972-12-28 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |