JPS5520302B2 - - Google Patents
Info
- Publication number
- JPS5520302B2 JPS5520302B2 JP8358276A JP8358276A JPS5520302B2 JP S5520302 B2 JPS5520302 B2 JP S5520302B2 JP 8358276 A JP8358276 A JP 8358276A JP 8358276 A JP8358276 A JP 8358276A JP S5520302 B2 JPS5520302 B2 JP S5520302B2
- Authority
- JP
- Japan
- 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
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)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB30922/75A GB1503972A (en) | 1975-07-24 | 1975-07-24 | Data storage apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5215309A JPS5215309A (en) | 1977-02-04 |
| JPS5520302B2 true JPS5520302B2 (US08118993-20120221-C00002.png) | 1980-06-02 |
Family
ID=10315188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51083582A Granted JPS5215309A (en) | 1975-07-24 | 1976-07-15 | Data memory |
Country Status (15)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093644U (ja) * | 1983-12-01 | 1985-06-26 | 村岡 耕一 | 二枚吸着防止装置 |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1520350A (en) * | 1976-12-22 | 1978-08-09 | Ibm | Data storage apparatus |
| US4086659A (en) * | 1977-02-28 | 1978-04-25 | Xerox Corporation | Control system for disk drive |
| US4096534A (en) * | 1977-04-12 | 1978-06-20 | International Business Machines Corporation | Track accessing circuitry for a disk file with switchable filter |
| DE2748042C2 (de) * | 1977-10-26 | 1983-02-17 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Auswertung von von Servospuren einer Magnetplatte eines Plattenspeichers gelieferten aus mehreren Schwingungen bestehenden Servosignalen |
| US4149200A (en) * | 1977-10-31 | 1979-04-10 | Burroughs Corporation | Transducer positioning system |
| US4208679A (en) * | 1978-02-28 | 1980-06-17 | Digital Equipment Corporation | Transducer positioning system for rotating disk drive units |
| DE2841381A1 (de) * | 1978-09-22 | 1980-03-27 | Siemens Ag | Schaltungsanordnung zur lageregelung eines datenkopfes in einem plattenspeicher |
| JPS56134367A (en) * | 1980-02-20 | 1981-10-21 | Mitsubishi Electric Corp | Disk device |
| NL8001974A (nl) * | 1980-04-03 | 1981-11-02 | Philips Nv | Spoorvolginrichting. |
| US4383209A (en) * | 1980-10-15 | 1983-05-10 | Minnesota Mining And Manufacturing Company | Control system for transducer positioning motor |
| US4377827A (en) * | 1980-11-10 | 1983-03-22 | Memorex Corporation | Servo positioning control system for a data storage apparatus |
| US4390912A (en) * | 1980-11-12 | 1983-06-28 | Digital Equipment Corporation | Transducer positioning system and data disk therefor |
| US4414589A (en) * | 1981-12-14 | 1983-11-08 | Northern Telecom Inc. | Embedded servo track following system and method for writing servo tracks |
| US5202802A (en) * | 1982-05-10 | 1993-04-13 | Digital Equipment Corporation | Methods of writing and detecting dibit servo encoding |
| US5115360A (en) * | 1982-05-10 | 1992-05-19 | Digital Equipment Corporation | Embedded burst demodulation and tracking error generation |
| US5220468A (en) * | 1982-05-10 | 1993-06-15 | Digital Equipment Corporation | Disk drive with constant bandwidth automatic gain control |
| DE3382724T2 (de) * | 1982-05-10 | 1994-06-09 | Digital Equipment Corp | Positioniersteuerungsverfahren mit sowohl kontinuierlichen als auch angefügten Informationen für einen Magnetplattenspeicher. |
| US5099367A (en) * | 1982-05-10 | 1992-03-24 | Digital Equipment Corporation | Method of automatic gain control basis selection and method of half-track servoing |
| US5187619A (en) * | 1982-05-10 | 1993-02-16 | Digital Equipment Corporation | High speed switched automatic gain control |
| US5153787A (en) * | 1982-05-10 | 1992-10-06 | Digital Equipment Corporation | Combination embedded and dedicated servo system including embedded servo waiting |
| US5095471A (en) * | 1982-05-10 | 1992-03-10 | Digital Equipment Corporation | Velocity estimator in a disk drive positioning system |
| US5153786A (en) * | 1982-05-10 | 1992-10-06 | Digital Equipment Corporation | Extended range servo system for positioning a disk drive head over a selected track |
| US5136440A (en) * | 1982-05-10 | 1992-08-04 | Digital Equipment Corporation | Track identification and counting in a disk drive positioning system |
| US5109307A (en) * | 1982-05-10 | 1992-04-28 | Digital Equipment Corporation | Continuous-plus-embedded servo data position control system for magnetic disk device |
| US5115359A (en) * | 1982-05-10 | 1992-05-19 | Digital Equipment Corporation | Fault tolerant frame, guardband and index detection methods |
| JPS59117761A (ja) * | 1982-12-24 | 1984-07-07 | Toshiba Corp | ヘツドの位置決め方式 |
| JPS607664A (ja) * | 1983-06-24 | 1985-01-16 | Toshiba Corp | ヘツドの位置決め方式 |
| US4556921A (en) * | 1983-06-30 | 1985-12-03 | Memorex Corporation | Method and apparatus to improve the positioning accuracy of a tracking arm |
| JPS61153155A (ja) * | 1984-12-27 | 1986-07-11 | Chikurou Sakai | プラスチツク類と金属との分離方法 |
| US4625321A (en) * | 1985-05-23 | 1986-11-25 | Standard Microsystems Corporation | Dual edge clock address mark detector |
| US4812929A (en) * | 1985-11-19 | 1989-03-14 | Rodime Plc | Head positioning mechanism for rotating disk data storage system |
| US4700244A (en) * | 1986-02-14 | 1987-10-13 | Hewlett-Packard Company | Process and system for compensating for information shifts on disc storage media |
| EP0267771A3 (en) * | 1986-11-10 | 1988-11-30 | Seagate Technology, Inc. | Dual track servo system |
| EP0285283A3 (en) * | 1987-03-30 | 1989-11-29 | Seagate Technology, Inc. | Disc memory servo indexing system |
| US5307218A (en) * | 1987-03-31 | 1994-04-26 | Kabushiki Kaisha Toshiba | Magnetic disk apparatus using both servo-surface servo and data-surface servo |
| US5111349A (en) * | 1989-02-07 | 1992-05-05 | Alps Electric (Usa), Inc. | Digital servo system for moving body by a distance equal to an integral multiple of a predetermined pitch |
| JP2551201B2 (ja) * | 1989-05-30 | 1996-11-06 | ティアツク株式会社 | ディスク装置 |
| US5510939A (en) * | 1992-07-16 | 1996-04-23 | Micropolis Corporation | Disk drive with adaptive positioning |
| US5936790A (en) * | 1996-09-03 | 1999-08-10 | Maxtor Corporation | Servo sector allocation for high sampling rate |
| JP2002124047A (ja) * | 2000-10-11 | 2002-04-26 | Sony Corp | 磁気ディスク装置 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075014A (US08118993-20120221-C00002.png) * | 1973-11-02 | 1975-06-20 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156906A (en) * | 1959-10-16 | 1964-11-10 | Ibm | Transducer positioning mechanism in a random access memory system |
| US3479664A (en) * | 1965-12-28 | 1969-11-18 | Data Products Corp | Servo positioning system |
| US3593331A (en) * | 1969-01-31 | 1971-07-13 | Ncr Co | Magnetic disc calibration track with diminishing apertures |
| US3593333A (en) * | 1969-11-26 | 1971-07-13 | Ibm | Position detection for a track following servo system |
| US3656130A (en) * | 1970-06-04 | 1972-04-11 | Ncr Co | Disc random access memory system |
| US3812533A (en) * | 1972-12-22 | 1974-05-21 | Vermont Res Corp | Information storage unit transducer positioning system |
| US3864741A (en) * | 1973-06-28 | 1975-02-04 | Ibm | Servo channel equalization network |
| US3994016A (en) * | 1975-03-31 | 1976-11-23 | Honeywell Information Systems, Inc. | Head positioning servo system for disk drives |
| US3947881A (en) * | 1975-04-21 | 1976-03-30 | Control Data Corporation | Servo positioning error control for magnetic disk file |
-
1975
- 1975-07-24 GB GB30922/75A patent/GB1503972A/en not_active Expired
-
1976
- 1976-02-03 ZA ZA760616A patent/ZA76616B/xx unknown
- 1976-05-31 BE BE167506A patent/BE842421A/xx not_active IP Right Cessation
- 1976-06-09 FR FR7618346A patent/FR2319179A1/fr active Granted
- 1976-07-02 DE DE2629710A patent/DE2629710B2/de active Granted
- 1976-07-05 NL NL7607379A patent/NL7607379A/xx not_active Application Discontinuation
- 1976-07-09 CA CA256,686A patent/CA1079845A/en not_active Expired
- 1976-07-15 JP JP51083582A patent/JPS5215309A/ja active Granted
- 1976-07-19 US US05/706,313 patent/US4072990A/en not_active Expired - Lifetime
- 1976-07-21 SE SE7608286A patent/SE413122B/xx unknown
- 1976-07-23 AR AR264059A patent/AR216445A1/es active
- 1976-07-23 BR BR7604808A patent/BR7604808A/pt unknown
- 1976-07-23 ES ES450069A patent/ES450069A1/es not_active Expired
- 1976-07-23 CH CH944576A patent/CH600481A5/xx not_active IP Right Cessation
- 1976-07-26 AU AU16255/76A patent/AU499654B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075014A (US08118993-20120221-C00002.png) * | 1973-11-02 | 1975-06-20 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093644U (ja) * | 1983-12-01 | 1985-06-26 | 村岡 耕一 | 二枚吸着防止装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7608286L (sv) | 1977-01-25 |
| JPS5215309A (en) | 1977-02-04 |
| DE2629710C3 (US08118993-20120221-C00002.png) | 1979-01-25 |
| CH600481A5 (US08118993-20120221-C00002.png) | 1978-06-15 |
| BR7604808A (pt) | 1977-08-02 |
| AU1625576A (en) | 1978-02-02 |
| NL7607379A (nl) | 1977-01-26 |
| AU499654B2 (en) | 1979-04-26 |
| BE842421A (fr) | 1976-09-16 |
| AR216445A1 (es) | 1979-12-28 |
| CA1079845A (en) | 1980-06-17 |
| FR2319179A1 (fr) | 1977-02-18 |
| DE2629710A1 (de) | 1977-01-27 |
| ES450069A1 (es) | 1977-07-16 |
| US4072990A (en) | 1978-02-07 |
| SE413122B (sv) | 1980-04-14 |
| FR2319179B1 (US08118993-20120221-C00002.png) | 1978-09-01 |
| GB1503972A (en) | 1978-03-15 |
| DE2629710B2 (de) | 1978-05-24 |
| ZA76616B (en) | 1977-09-28 |
