NL8004180A - Werkwijze voor het meten van de positie van een kop voor het lezen en schrijven van informaties op een drager tenopzichte van een referentiepositie daarvan, en inrichting voor het in praktijk brengen van deze werkwijze. - Google Patents
Werkwijze voor het meten van de positie van een kop voor het lezen en schrijven van informaties op een drager tenopzichte van een referentiepositie daarvan, en inrichting voor het in praktijk brengen van deze werkwijze. Download PDFInfo
- Publication number
- NL8004180A NL8004180A NL8004180A NL8004180A NL8004180A NL 8004180 A NL8004180 A NL 8004180A NL 8004180 A NL8004180 A NL 8004180A NL 8004180 A NL8004180 A NL 8004180A NL 8004180 A NL8004180 A NL 8004180A
- Authority
- NL
- Netherlands
- Prior art keywords
- signal
- integral
- odd
- zones
- head
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 29
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000010354 integration Effects 0.000 claims description 5
- 210000000056 organ Anatomy 0.000 claims description 3
- 230000007704 transition Effects 0.000 description 15
- 230000006698 induction Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 8
- 230000000737 periodic effect Effects 0.000 description 8
- 230000015654 memory Effects 0.000 description 7
- 230000005381 magnetic domain Effects 0.000 description 5
- 229910019250 POS3 Inorganic materials 0.000 description 4
- 101100309447 Caenorhabditis elegans sad-1 gene Proteins 0.000 description 3
- MENQCIVHHONJLU-FZCSVUEKSA-N [(3s,5s,8r,9s,10s,13s,14s,17s)-17-acetyl-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-3-yl] hydrogen sulfate Chemical compound C([C@@H]1CC2)[C@@H](OS(O)(=O)=O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](C(=O)C)[C@@]2(C)CC1 MENQCIVHHONJLU-FZCSVUEKSA-N 0.000 description 3
- 230000010365 information processing Effects 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000545 stagnation point adsorption reflectometry Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 101100523490 Dictyostelium discoideum rab8A gene Proteins 0.000 description 1
- 101100411591 Dictyostelium discoideum rab8B gene Proteins 0.000 description 1
- 101100148749 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SAS2 gene Proteins 0.000 description 1
- 101100364870 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SAS5 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000007787 solid Substances 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
- G11B5/58—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
- G11B5/596—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 for track following on disks
- G11B5/59633—Servo formatting
- G11B5/59655—Sector, sample or burst servo format
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7928421A FR2470425A1 (fr) | 1979-11-19 | 1979-11-19 | Procede pour mesurer la position d'une tete de lecture-ecriture des informations d'un support par rapport a une position de reference de celui-ci et dispositif pour le mettre en oeuvre |
| FR7928421 | 1979-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8004180A true NL8004180A (nl) | 1981-06-16 |
Family
ID=9231817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8004180A NL8004180A (nl) | 1979-11-19 | 1980-07-21 | Werkwijze voor het meten van de positie van een kop voor het lezen en schrijven van informaties op een drager tenopzichte van een referentiepositie daarvan, en inrichting voor het in praktijk brengen van deze werkwijze. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4400746A (en:Method) |
| JP (1) | JPS5693148A (en:Method) |
| DE (1) | DE3043650A1 (en:Method) |
| FR (1) | FR2470425A1 (en:Method) |
| GB (1) | GB2065335B (en:Method) |
| IT (1) | IT1193992B (en:Method) |
| NL (1) | NL8004180A (en:Method) |
| SE (1) | SE450606B (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR8207978A (pt) * | 1981-11-16 | 1983-10-04 | Dma Systems Corp | Processo de gravacao de codigo de identificacao de trilha |
| FR2557722B1 (fr) * | 1983-12-30 | 1986-04-11 | Bull Sa | Procede d'ecriture d'informations sur un support d'enregistrement |
| US4608618A (en) * | 1984-10-25 | 1986-08-26 | Verbatim Corporation | Digital alignment diagnostic disk |
| FR2593633B1 (fr) * | 1986-01-27 | 1988-04-29 | Sagem | Procede d'ecriture et de lecture d'une piste magnetique, notamment pour l'asservissement positionnel de tetes magnetiques; support magnetique comportant au moins une telle piste; procede d'asservissement positionnel de tetes magnetiques mettant en oeuvre de telles pistes |
| FR2615995A1 (fr) * | 1987-05-27 | 1988-12-02 | Bull Sa | Mode d'ecriture d'informations sur un support d'enregistrement magnetique |
| US5341255A (en) * | 1990-10-17 | 1994-08-23 | Seagate Technology, Inc. | Disc drive head positioning servo system with coherent adjacent track magnetic patterns |
| JP1686862S (en:Method) | 2020-05-22 | 2021-05-31 | ||
| JP1677395S (en:Method) | 2020-05-22 | 2021-01-25 | ||
| JP1686932S (en:Method) | 2020-05-22 | 2021-05-31 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3479664A (en) * | 1965-12-28 | 1969-11-18 | Data Products Corp | Servo positioning system |
| US3534344A (en) * | 1967-12-21 | 1970-10-13 | Ibm | Method and apparatus for recording and detecting information |
| US3609562A (en) * | 1970-07-17 | 1971-09-28 | Ibm | Synchronized demodulator |
| FR2346806A1 (fr) * | 1976-03-31 | 1977-10-28 | Honeywell Bull Soc Ind | Mode d'ecriture d'adresses sur un support d'enregist rement magnetique |
| FR2365178A1 (fr) * | 1976-09-20 | 1978-04-14 | Cii Honeywell Bull | Procede de lecture d'adresses sur un support d'enregistrement magnetique et dispositif pour le mettre en oeuvre |
| US4101942A (en) * | 1976-10-15 | 1978-07-18 | Xerox Corporation | Track following servo system and track following code |
| US4130844A (en) * | 1976-10-26 | 1978-12-19 | Xerox Corporation | Method and means for tracking magnetic tracks |
| US4208679A (en) * | 1978-02-28 | 1980-06-17 | Digital Equipment Corporation | Transducer positioning system for rotating disk drive units |
| JPS54119215A (en) * | 1978-03-09 | 1979-09-17 | Toshiba Corp | Magnetic disc apparatus |
| FR2439435A1 (fr) * | 1978-10-19 | 1980-05-16 | Cii Honeywell Bull | Mode d'ecriture d'informations sur un support d'enregistrement magnetique |
-
1979
- 1979-11-19 FR FR7928421A patent/FR2470425A1/fr active Granted
-
1980
- 1980-07-21 NL NL8004180A patent/NL8004180A/nl not_active Application Discontinuation
- 1980-09-19 SE SE8006591A patent/SE450606B/sv not_active IP Right Cessation
- 1980-10-22 GB GB8034074A patent/GB2065335B/en not_active Expired
- 1980-11-10 US US06/205,863 patent/US4400746A/en not_active Expired - Lifetime
- 1980-11-11 IT IT25876/80A patent/IT1193992B/it active
- 1980-11-17 JP JP16093780A patent/JPS5693148A/ja active Granted
- 1980-11-19 DE DE19803043650 patent/DE3043650A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3043650A1 (de) | 1981-09-17 |
| IT8025876A0 (it) | 1980-11-11 |
| DE3043650C2 (en:Method) | 1988-08-18 |
| SE450606B (sv) | 1987-07-06 |
| GB2065335B (en) | 1983-09-01 |
| FR2470425A1 (fr) | 1981-05-29 |
| GB2065335A (en) | 1981-06-24 |
| FR2470425B1 (en:Method) | 1983-08-26 |
| JPS6232551B2 (en:Method) | 1987-07-15 |
| JPS5693148A (en) | 1981-07-28 |
| US4400746A (en) | 1983-08-23 |
| SE8006591L (sv) | 1981-05-20 |
| IT1193992B (it) | 1988-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3404392A (en) | Magnetic track following servo system | |
| US5689384A (en) | Timing based servo system for magnetic tape systems | |
| US4151571A (en) | Method of writing addresses on a magnetic recording medium | |
| US4238809A (en) | Servo track configuration for magnetic disk apparatus | |
| US3593333A (en) | Position detection for a track following servo system | |
| KR840003113A (ko) | 매립 서어보 트랙종동 시스템 및 서어보 트랙기입 방법 | |
| US4858221A (en) | Preformatted information medium and optical reader device | |
| US5767495A (en) | Reduced-power magnetic transducer system utilizing a magnetoresistive head | |
| NL8004180A (nl) | Werkwijze voor het meten van de positie van een kop voor het lezen en schrijven van informaties op een drager tenopzichte van een referentiepositie daarvan, en inrichting voor het in praktijk brengen van deze werkwijze. | |
| GB2271462B (en) | Array type recording system | |
| US5771142A (en) | Multitrack magnetic write/read head arrangement with integal multiple head gap widths | |
| US4354208A (en) | Magnetic recording medium and digital storage device including same | |
| NL8004389A (nl) | Inrichting voor het meten van de snelheid van een beweegbaar stelsel ten opzichte van een informatie- drager. | |
| US4377827A (en) | Servo positioning control system for a data storage apparatus | |
| JP2001513247A (ja) | テープサーボのシステムと方法、書き込み／読み出しヘッド、およびそれらに関するサーボトラック構成 | |
| US4157576A (en) | Track-dependent transducer position control in magneto-dynamic storage devices, and a magnetic recording medium to which this method is applicable | |
| US4173026A (en) | Self clocking speed tolerant magnetic recording method and apparatus | |
| ATE109583T1 (de) | Scheibenförmiger aufzeichnungsträger und vorrichtung zur aufzeichnung von daten auf den und/oder zum auslesen von daten vom aufzeichnungsträger. | |
| EP0222071B1 (en) | Twin track vertical magnetic recording servo control method and apparatus with offset voltage compensation | |
| GB1572290A (en) | Method of reading addresses on a magnetic recording medium and apparatus for putting it into effect | |
| JPS61156574A (ja) | 磁気デイスク駆動装置の書込み読出し制御回路 | |
| US4303951A (en) | Device for compensating unequal write fields in magnetic data-storage devices, especially in disc memories | |
| NL8004388A (nl) | Werkwijze voor het verplaatsen van een beweegbaar stelsel ten opzichte van een informatiedrager en inrichting voor het toepassen van deze werkwijze. | |
| US4864434A (en) | Method for writing a tri-phase servo pattern which provides information for positioning the transducers of a magnetic storage device | |
| DE3884027D1 (de) | Vorrichtung zum Zählen einer Anzahl von Aufzeichnungsspuren, anwendbar auf einem Zugriffskontrollsystem für eine optische Platte. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |