BE847987A - Dispositif de positionnement pour le bras d'acces de la tete magnetique d'une memoire a disques magnetiques, - Google Patents
Dispositif de positionnement pour le bras d'acces de la tete magnetique d'une memoire a disques magnetiques,Info
- Publication number
- BE847987A BE847987A BE172082A BE172082A BE847987A BE 847987 A BE847987 A BE 847987A BE 172082 A BE172082 A BE 172082A BE 172082 A BE172082 A BE 172082A BE 847987 A BE847987 A BE 847987A
- Authority
- BE
- Belgium
- Prior art keywords
- positioning device
- magnetic
- disc memory
- access arm
- magnetic head
- Prior art date
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
- G11B5/58—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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752558359 DE2558359A1 (de) | 1975-12-23 | 1975-12-23 | Einstellvorrichtung fuer den zugriffsarm des magnetkopfes eines magnetplattenspeichers |
Publications (1)
Publication Number | Publication Date |
---|---|
BE847987A true BE847987A (fr) | 1977-03-01 |
Family
ID=5965450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE172082A BE847987A (fr) | 1975-12-23 | 1976-11-04 | Dispositif de positionnement pour le bras d'acces de la tete magnetique d'une memoire a disques magnetiques, |
Country Status (10)
Country | Link |
---|---|
US (1) | US4087843A (nl) |
JP (1) | JPS5280814A (nl) |
BE (1) | BE847987A (nl) |
BR (1) | BR7608681A (nl) |
CA (1) | CA1066410A (nl) |
DE (1) | DE2558359A1 (nl) |
FR (1) | FR2336760A1 (nl) |
GB (1) | GB1566290A (nl) |
IT (1) | IT1071478B (nl) |
NL (1) | NL7614187A (nl) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4188646A (en) * | 1978-05-30 | 1980-02-12 | Sperry Rand Corporation | Sectorized data path following servo system |
BR8101049A (pt) * | 1980-02-22 | 1981-08-25 | Northern Telecom Inc | Sistema servo para posicionar um transdutor de leitura, meio de gravacao para uso no dito sistema, e processo para posicionar um transdutor de leitura/gravacao |
US4383209A (en) * | 1980-10-15 | 1983-05-10 | Minnesota Mining And Manufacturing Company | Control system for transducer positioning motor |
US4405956A (en) * | 1981-04-22 | 1983-09-20 | Xerox Corporation | Tracking apparatus for read/write head |
JPS5862870A (ja) * | 1981-10-12 | 1983-04-14 | Toshiba Corp | 磁気ディスク装置 |
US4414589A (en) * | 1981-12-14 | 1983-11-08 | Northern Telecom Inc. | Embedded servo track following system and method for writing servo tracks |
EP0097209B1 (en) * | 1982-06-18 | 1987-11-04 | International Business Machines Corporation | Magnetizable recording disk and disk file employing servo sector head positioning |
JPS59223939A (ja) * | 1983-06-02 | 1984-12-15 | Victor Co Of Japan Ltd | 円盤状磁気記録媒体の配向処理装置 |
US4549232A (en) * | 1983-06-27 | 1985-10-22 | International Business Machines Corporation | Phase modulated servo system |
US4656538A (en) * | 1985-11-14 | 1987-04-07 | Xebec Development Partners, Ltd. | Disk drive control system |
US4688119A (en) * | 1985-11-20 | 1987-08-18 | Xebec Development Partners, Ltd. | Detection and amplification circuit |
US4912576A (en) * | 1985-11-20 | 1990-03-27 | Magnetic Peripherals Inc. | Method for writing a servo pattern |
US4864434A (en) * | 1985-11-20 | 1989-09-05 | Magnetic Peripherals Inc. | Method for writing a tri-phase servo pattern which provides information for positioning the transducers of a magnetic storage device |
US4811135A (en) * | 1985-11-20 | 1989-03-07 | Magnetic Peripherals Inc. | Tri-phase servo pattern for providing information for positioning the transducers of a magnetic disk storage drive |
US5095393A (en) * | 1985-11-20 | 1992-03-10 | Seagate Technology, Inc. | Tri-phase servo pattern for providing positioning information in a magnetic disk drive |
US4954906A (en) * | 1986-03-04 | 1990-09-04 | Seiko Epson Corporation | Position control system for a magnetic storage device using a small sized disk |
US4935828A (en) * | 1988-06-30 | 1990-06-19 | Wang Laboratories, Inc. | Seek multitasking disk controller |
US5170299A (en) * | 1990-08-17 | 1992-12-08 | Quantum Corporation | Edge servo for disk drive head positioner |
US5400201A (en) * | 1993-10-25 | 1995-03-21 | Syquest Technology, Inc. | Servo burst pattern for removing offset caused by magnetic distortion and method associated therewith |
US5523903A (en) * | 1993-12-23 | 1996-06-04 | International Business Machines Corporation | Sector architecture for fixed block disk drive |
JP2008276875A (ja) * | 2007-04-27 | 2008-11-13 | Fujitsu Ltd | 磁気ディスク装置によるデータの書き込み方法、オフトラックマージン設定方法、磁気ディスク装置、および、オフトラックマージン設定装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3034111A (en) * | 1958-11-24 | 1962-05-08 | Ibm | Data storage system |
US3534344A (en) * | 1967-12-21 | 1970-10-13 | Ibm | Method and apparatus for recording and detecting information |
US3812533A (en) * | 1972-12-22 | 1974-05-21 | Vermont Res Corp | Information storage unit transducer positioning system |
US3924268A (en) * | 1974-08-05 | 1975-12-02 | Ibm | High density track follower control system for magnetic disk file |
US3994016A (en) * | 1975-03-31 | 1976-11-23 | Honeywell Information Systems, Inc. | Head positioning servo system for disk drives |
US4027338A (en) * | 1975-04-28 | 1977-05-31 | Burroughs Corporation | Transducer positioning system for providing coarse positioning |
-
1975
- 1975-12-23 DE DE19752558359 patent/DE2558359A1/de not_active Withdrawn
-
1976
- 1976-09-10 US US05/722,183 patent/US4087843A/en not_active Expired - Lifetime
- 1976-11-04 BE BE172082A patent/BE847987A/xx unknown
- 1976-11-08 FR FR7634523A patent/FR2336760A1/fr active Granted
- 1976-11-19 IT IT29530/76A patent/IT1071478B/it active
- 1976-12-03 JP JP51144861A patent/JPS5280814A/ja active Pending
- 1976-12-15 GB GB52380/76A patent/GB1566290A/en not_active Expired
- 1976-12-21 NL NL7614187A patent/NL7614187A/nl not_active Application Discontinuation
- 1976-12-22 CA CA268,486A patent/CA1066410A/en not_active Expired
- 1976-12-23 BR BR7608681A patent/BR7608681A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
CA1066410A (en) | 1979-11-13 |
BR7608681A (pt) | 1978-01-03 |
GB1566290A (en) | 1980-04-30 |
US4087843A (en) | 1978-05-02 |
NL7614187A (nl) | 1977-06-27 |
DE2558359A1 (de) | 1977-07-07 |
FR2336760B1 (nl) | 1978-12-15 |
IT1071478B (it) | 1985-04-10 |
JPS5280814A (en) | 1977-07-06 |
FR2336760A1 (fr) | 1977-07-22 |
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