WO1998012699A9 - Interface d'enregistrement de proximite autonettoyante - Google Patents
Interface d'enregistrement de proximite autonettoyanteInfo
- Publication number
- WO1998012699A9 WO1998012699A9 PCT/US1997/016565 US9716565W WO9812699A9 WO 1998012699 A9 WO1998012699 A9 WO 1998012699A9 US 9716565 W US9716565 W US 9716565W WO 9812699 A9 WO9812699 A9 WO 9812699A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- slider
- pad
- head
- actuator
- 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.)
- Ceased
Links
Definitions
- the noted device for removing debris causes the spin motor to rotate the disk at a lower angular velocity than during normal data transfer operations and further causes the actuator assembly to radially displace the slider and head.
- low angular velocity spinning of the disk is achieved using an open loop control for the spin drive motor. These operations cause the slider to rotate relative to the disk surface such that various portions of the curved surface of the pad are cleaned by the disk. Further, the disk is swept of debris to the extent of the radial displacement of the slider.
- the noted device for removing debris causes the actuator assembly to displace the slider between the inner and outer radiuses of the disk, i.e., the range of radiuses on the disk over which the actuator assembly can position the slider. This serves to clean at least a portion of the pad and all of the disk over which the actuator assembly can position the slider.
- an open loop control is used to achieve displacement of the slider, preferably after verifying that the disk is spinning.
- a reduced angular velocity for the disk is chosen so that the entire pad disk surface 50 is cleaned by contact with the disk 12 during a radial displacement of the slider from the inner-most radius to the outer-most radius of the disk 12 that the actuator assembly 22 is capable of moving the slider 20.
- This not only serves to clean the pad disk surface 50 but also removes or sweeps particles residing on the surface of the disk 12 that, if allowed to remain, could contribute to the accumulation of debris on the pad 44.
- Fig. 5 illustrates the orientation of the slider 20 at the inner radius of the disk. At this location, the portion of the pad disk surface 50 adjacent the pad leading edge 46 is contacted and cleaned by the disk.
Abstract
La présente invention se rapporte à une unité de disques (10) utilisant une interface d'enregistrement de proximité dans laquelle un curseur (20) transportant une tête (18) est conçu pour rester en contact avec le disque (12) pendant les opérations de transfert de données de façon à assurer un enregistrement de données à haute densité. Selon la présente invention, on élimine les débris provenant d'une garniture (44) du curseur (20) portant la tête (18). Ces débris, si on les laisse s'accumuler, peuvent atteindre une épaisseur proche de la distance d'éloignement de la tête (18) par rapport au disque (12), à tel point que le transfert de données avec le disque (12) s'en trouve affecté. Le moteur de rotation (14) de l'unité de disques (10) est contraint de tourner à une vitesse angulaire inférieure à celle des opérations normales de transfert de données, lorsque l'actionneur (22) de l'unité de disques (10) est utilisé pour déplacer radialement le curseur (20) et la tête (18) qui lui est associée.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU44234/97A AU4423497A (en) | 1996-09-18 | 1997-09-17 | Self-cleaning proximity recording interface |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/715,539 US5850321A (en) | 1996-09-18 | 1996-09-18 | Self-cleaning proximity recording interface |
| US08/715,539 | 1996-09-18 | ||
| US71553997A | 1997-09-18 | 1997-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998012699A1 WO1998012699A1 (fr) | 1998-03-26 |
| WO1998012699A9 true WO1998012699A9 (fr) | 1998-07-30 |
Family
ID=27109368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/016565 Ceased WO1998012699A1 (fr) | 1996-09-18 | 1997-09-17 | Interface d'enregistrement de proximite autonettoyante |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1998012699A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPN498595A0 (en) * | 1995-08-23 | 1995-09-14 | International Water Solutions Corporation | Extraction of valuable metals |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4384311A (en) * | 1981-10-13 | 1983-05-17 | Dma Systems Corporation | Method for cleaning the disc surface and the head support structure in a magnetic disc drive |
| JPH0554347A (ja) * | 1991-08-21 | 1993-03-05 | Nec Ibaraki Ltd | 磁気デイスク装置 |
-
1997
- 1997-09-17 WO PCT/US1997/016565 patent/WO1998012699A1/fr not_active Ceased
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