CA1055154A - Rotating memory accessing mechanism - Google Patents
Rotating memory accessing mechanismInfo
- Publication number
- CA1055154A CA1055154A CA214,235A CA214235A CA1055154A CA 1055154 A CA1055154 A CA 1055154A CA 214235 A CA214235 A CA 214235A CA 1055154 A CA1055154 A CA 1055154A
- Authority
- CA
- Canada
- Prior art keywords
- cam
- disk
- head
- axis
- magnetic
- 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
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 73
- 230000015654 memory Effects 0.000 title abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 230000005291 magnetic effect Effects 0.000 claims description 59
- 230000000712 assembly Effects 0.000 claims description 36
- 238000000429 assembly Methods 0.000 claims description 36
- 230000033001 locomotion Effects 0.000 claims description 32
- 230000008093 supporting effect Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 claims 10
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000000750 progressive effect Effects 0.000 claims 1
- 239000000872 buffer Substances 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000000737 periodic effect Effects 0.000 abstract description 2
- 230000001429 stepping effect Effects 0.000 description 36
- 230000001133 acceleration Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 239000007853 buffer solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004886 head movement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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
-
- 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
Landscapes
- Moving Of Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US436454A US3882541A (en) | 1974-01-25 | 1974-01-25 | Rotating memory accessing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1055154A true CA1055154A (en) | 1979-05-22 |
Family
ID=23732464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA214,235A Expired CA1055154A (en) | 1974-01-25 | 1974-11-20 | Rotating memory accessing mechanism |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3882541A (en, 2012) |
| JP (1) | JPS5344806B2 (en, 2012) |
| CA (1) | CA1055154A (en, 2012) |
| DE (1) | DE2502625A1 (en, 2012) |
| FR (1) | FR2259413B1 (en, 2012) |
| GB (1) | GB1489477A (en, 2012) |
| IT (1) | IT1027656B (en, 2012) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2705125A1 (de) * | 1977-02-08 | 1978-08-17 | Basf Ag | Positioniereinrichtung fuer einen schreib/lese-magnetkopf in einem magnetscheiben-informationsspeicher |
| GB2060979B (en) * | 1979-10-12 | 1983-10-26 | Digital Equipment Corp | Magnetic disc data storage apparatus |
| JPS5862871A (ja) * | 1981-10-09 | 1983-04-14 | Nec Corp | フロツピイデイスク装置 |
| GB2126441B (en) * | 1982-09-03 | 1986-07-30 | Hitachi Ltd | Positioning method and apparatus therefor |
| US4651247A (en) * | 1983-08-30 | 1987-03-17 | Alps Electric Co., Ltd | Carriage moving mechanism for recording and reproducing device |
| US4609954A (en) * | 1984-03-02 | 1986-09-02 | Eastman Kodak Company | Tracking servo for a disk player with a dc motor |
| DE3509111A1 (de) * | 1984-03-19 | 1985-09-19 | Hewlett-Packard Co., Palo Alto, Calif. | Positioniervorrichtung fuer den kopf einer plattenspeichereinrichtung |
| GB8408113D0 (en) * | 1984-03-29 | 1984-05-10 | Quantel Ltd | Video editing/viewing systems |
| EP0162614A3 (en) * | 1984-05-23 | 1988-03-30 | Seagate Technology | Improved rotary actuator for a disc drive |
| US4661873A (en) * | 1984-11-14 | 1987-04-28 | Lapine Technology | Head lifter mechanism for hard disk drive |
| JPS6342003A (ja) * | 1986-08-08 | 1988-02-23 | Olympus Optical Co Ltd | スチルビデオフロツピデイスク消去装置 |
| JPH0690860B2 (ja) * | 1987-04-10 | 1994-11-14 | インターナショナル・ビジネス・マシ−ンズ・コーポレーシヨン | 磁気ディスク記憶装置 |
| US5012362A (en) * | 1987-06-19 | 1991-04-30 | Olympus Optical Co., Ltd. | Apparatus for positioning a transducer for recording, reproducing or erasing information on a medium |
| US4827365A (en) * | 1987-07-24 | 1989-05-02 | Olympus Optical Co., Inc. | Assembly for accessing information recording medium |
| US4924976A (en) * | 1987-09-04 | 1990-05-15 | Digital Equipment Corporation | Tuned array vibration absorber |
| US5986451A (en) * | 1996-10-30 | 1999-11-16 | Phase Metrics, Inc. | Low z-height loader for a head gimbal assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314057A (en) * | 1963-06-17 | 1967-04-11 | Data Products Corp | Random access positioning means |
| US3681525A (en) * | 1970-02-20 | 1972-08-01 | Victor Company Of Japan | Digital rotation motor |
| JPS476287U (en, 2012) * | 1971-02-12 | 1972-09-21 |
-
1974
- 1974-01-25 US US436454A patent/US3882541A/en not_active Expired - Lifetime
- 1974-11-20 CA CA214,235A patent/CA1055154A/en not_active Expired
- 1974-11-28 FR FR7441925A patent/FR2259413B1/fr not_active Expired
- 1974-12-13 IT IT30516/74A patent/IT1027656B/it active
- 1974-12-27 JP JP14913274A patent/JPS5344806B2/ja not_active Expired
-
1975
- 1975-01-08 GB GB839/75A patent/GB1489477A/en not_active Expired
- 1975-01-23 DE DE19752502625 patent/DE2502625A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5344806B2 (en, 2012) | 1978-12-01 |
| US3882541A (en) | 1975-05-06 |
| FR2259413A1 (en, 2012) | 1975-08-22 |
| DE2502625A1 (de) | 1975-07-31 |
| FR2259413B1 (en, 2012) | 1976-10-22 |
| JPS50105110A (en, 2012) | 1975-08-19 |
| GB1489477A (en) | 1977-10-19 |
| IT1027656B (it) | 1978-12-20 |
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