AU8157487A - Method and apparatus for controlling the position of a moveable head assembly - Google Patents
Method and apparatus for controlling the position of a moveable head assemblyInfo
- Publication number
- AU8157487A AU8157487A AU81574/87A AU8157487A AU8157487A AU 8157487 A AU8157487 A AU 8157487A AU 81574/87 A AU81574/87 A AU 81574/87A AU 8157487 A AU8157487 A AU 8157487A AU 8157487 A AU8157487 A AU 8157487A
- Authority
- AU
- Australia
- Prior art keywords
- seek
- head
- time
- acceleration
- class
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 40
- 230000001133 acceleration Effects 0.000 claims description 95
- 238000012545 processing Methods 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000036962 time dependent Effects 0.000 claims 3
- 230000003213 activating effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 description 10
- 230000015654 memory Effects 0.000 description 9
- 238000012937 correction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000005534 acoustic noise Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000001537 Ribes X gardonianum Nutrition 0.000 description 1
- 235000001535 Ribes X utile Nutrition 0.000 description 1
- 235000016919 Ribes petraeum Nutrition 0.000 description 1
- 244000281247 Ribes rubrum Species 0.000 description 1
- 235000002355 Ribes spicatum Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920005994 diacetyl cellulose Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000020347 spindle assembly Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 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
- 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 Head For Track Selection And Changing (AREA)
- Heat Treatment Of Articles (AREA)
- Vehicle Body Suspensions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91908486A | 1986-10-14 | 1986-10-14 | |
| US919084 | 1986-10-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU8157487A true AU8157487A (en) | 1988-05-06 |
Family
ID=25441476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU81574/87A Abandoned AU8157487A (en) | 1986-10-14 | 1987-10-14 | Method and apparatus for controlling the position of a moveable head assembly |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU8157487A (fr) |
| WO (1) | WO1988002913A1 (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63316381A (ja) * | 1987-06-19 | 1988-12-23 | Victor Co Of Japan Ltd | 磁気ディスク装置 |
| JPH0291864A (ja) * | 1988-09-27 | 1990-03-30 | Nec Ibaraki Ltd | 磁気ディスク装置 |
| US4890172A (en) * | 1988-09-27 | 1989-12-26 | Digital Equipment Corporation | Automatic servo gain calibration system for a disk drive |
| US5063454A (en) * | 1989-01-10 | 1991-11-05 | Fujitsu Limited | Automatic adjustment method and system for servo motor circuit of a magnetic disk apparatus |
| WO1990013113A1 (fr) * | 1989-04-27 | 1990-11-01 | Siemens Aktiengesellschaft | Procede et dispositif de positionnement d'une memoire a disque magnetique |
| US5262907A (en) * | 1991-07-31 | 1993-11-16 | Seagate Technology, Inc. | Hard disc drive with improved servo system |
| JP2862052B2 (ja) * | 1993-04-01 | 1999-02-24 | 三菱電機株式会社 | 位置指令方法及びその装置 |
| DE19983614T1 (de) * | 1998-10-09 | 2001-09-13 | Seagate Technology Llc | Plattenlaufwerkverfahren und Vorrichtung zum dynamischen Einstellen von Suchvorgängen |
| US6396653B1 (en) * | 1999-06-04 | 2002-05-28 | Seagate Technology Llc | Apparatus and method for reduction of idle-mode acoustics in a disc drive |
| JP2003508866A (ja) * | 1999-06-24 | 2003-03-04 | シーゲイト テクノロジー エルエルシー | 性能低下を最小に抑えたシーク音響の低減 |
| KR100400036B1 (ko) | 2001-02-22 | 2003-09-29 | 삼성전자주식회사 | 하드 디스크 드라이브의 탐색 서보 장치 및 방법 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3699555A (en) * | 1970-10-23 | 1972-10-17 | Zerox Corp | Apparatus for rapid action displacement control |
| US3828236A (en) * | 1971-06-07 | 1974-08-06 | Transportation Technology | Linear motor acceleration control system |
| US3798427A (en) * | 1973-02-27 | 1974-03-19 | Giddings & Lewis | Automatic deceleration to zero velocity in iteratively computing numerical control systems |
| DE2759066A1 (de) * | 1977-12-30 | 1979-07-12 | Ibm Deutschland | Einrichtung fuer die regelung der magnetkopfposition waehrend der spurauswahl und der spurfolge des magnetkopfes eines magnetplattenspeichers |
| US4250438A (en) * | 1978-03-07 | 1981-02-10 | Oki Electric Industry Co., Ltd. | Digitally controlled acceleration and deceleration system |
| US4257074A (en) * | 1979-06-15 | 1981-03-17 | Magnetic Peripherals Inc. | Time optimal function generator for disk file magnetic recording head servo position control loop |
| US4342379A (en) * | 1979-12-27 | 1982-08-03 | Otis Elevator Company | Time controlled elevator door motion |
| US4439800A (en) * | 1981-04-24 | 1984-03-27 | Iomega Corporation | Servo control of seek operation in magnetic disk drive |
| JPS5862868A (ja) * | 1981-10-09 | 1983-04-14 | Pioneer Video Corp | 情報再生装置における高速アドレス情報探索方式 |
| JPS58166567A (ja) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | 情報トラックの検索装置 |
| US4535372A (en) * | 1983-06-29 | 1985-08-13 | Storage Technology Corporation | Position tracking servo control systems and methods |
| DE3374731D1 (en) * | 1983-06-30 | 1988-01-07 | Ibm | Track following servo system for a disk file |
-
1987
- 1987-10-14 AU AU81574/87A patent/AU8157487A/en not_active Abandoned
- 1987-10-14 WO PCT/US1987/002646 patent/WO1988002913A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO1988002913A1 (fr) | 1988-04-21 |
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