JPH0210568A - 光学式または磁気・光学式データ・システム - Google Patents
光学式または磁気・光学式データ・システムInfo
- Publication number
- JPH0210568A JPH0210568A JP1059836A JP5983689A JPH0210568A JP H0210568 A JPH0210568 A JP H0210568A JP 1059836 A JP1059836 A JP 1059836A JP 5983689 A JP5983689 A JP 5983689A JP H0210568 A JPH0210568 A JP H0210568A
- Authority
- JP
- Japan
- Prior art keywords
- medium
- optical
- light
- flexible
- read
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 126
- 230000006641 stabilisation Effects 0.000 claims abstract description 14
- 238000011105 stabilization Methods 0.000 claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 13
- 230000010287 polarization Effects 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 17
- 230000007246 mechanism Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005374 Kerr effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
- G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
- G11B11/10541—Heads for reproducing
- G11B11/10543—Heads for reproducing using optical beam of radiation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10552—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base
- G11B11/10554—Arrangements of transducers relative to each other, e.g. coupled heads, optical and magnetic head on the same base the transducers being disposed on the same side of the carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/1058—Flying heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/62—Maintaining desired spacing between record carrier and head
- G11B15/64—Maintaining desired spacing between record carrier and head by fluid-dynamic spacing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
- G11B7/0031—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent using a rotating head, e.g. helicoidal recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16765988A | 1988-03-14 | 1988-03-14 | |
| US07/167,652 US5012463A (en) | 1988-03-14 | 1988-03-14 | Optical read/write storage system for flexible media having bernoulli stabilization at the optical head |
| US167659 | 1988-03-14 | ||
| US167652 | 1993-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0210568A true JPH0210568A (ja) | 1990-01-16 |
Family
ID=26863354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1059836A Pending JPH0210568A (ja) | 1988-03-14 | 1989-03-14 | 光学式または磁気・光学式データ・システム |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPH0210568A (fi) |
| KR (1) | KR890015281A (fi) |
| BR (1) | BR8901169A (fi) |
| DE (1) | DE3908150A1 (fi) |
| ES (1) | ES2013115A6 (fi) |
| FI (1) | FI891202A (fi) |
| FR (1) | FR2628565B1 (fi) |
| GB (1) | GB2216710B (fi) |
| IL (1) | IL89579A0 (fi) |
| NL (1) | NL8900611A (fi) |
| NO (1) | NO891075L (fi) |
| SE (1) | SE8900879L (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7428199B2 (en) | 2002-01-22 | 2008-09-23 | Ricoh Company, Ltd. | Optical disk stabilizing apparatus and method of controlling optical disk stabilizing apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08315462A (ja) * | 1995-05-22 | 1996-11-29 | Sony Corp | 磁気ヘッド装置、テープカートリッジ及び記録再生装置 |
| SG101448A1 (en) * | 2001-05-08 | 2004-01-30 | Sony Electronics Singapore Pte | A disk drive |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2167258A5 (fi) * | 1972-01-11 | 1973-08-24 | Thomson Csf | |
| NL169668C (nl) * | 1972-09-02 | 1982-08-02 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige informatiedrager. |
| US3912282A (en) * | 1972-11-17 | 1975-10-14 | Matsushita Electric Ind Co Ltd | Recording and reproducing apparatus using flexible recording media |
| NL7316384A (nl) * | 1973-11-29 | 1975-06-02 | Philips Nv | Inrichting voor het optisch uitlezen van een reflekterende registratiedrager. |
| US3927252A (en) * | 1974-04-02 | 1975-12-16 | Zenith Radio Corp | Biased video disc stabilizer system |
| FR2312832A1 (fr) * | 1975-05-30 | 1976-12-24 | Thomson Brandt | Dispositif de stabilisation de disques souples, et notamment de video-disques, et appareil de lecture adapte a ce dispositif |
| US4030815A (en) * | 1975-10-31 | 1977-06-21 | Rca Corporation | Hydrostatic bearing apparatus |
| GB1569667A (en) * | 1977-09-30 | 1980-06-18 | Ibm | Record/playback heat structure and data storage apparatus therefor |
| US4316278A (en) * | 1979-12-13 | 1982-02-16 | Mcdonnell Douglas Corporation | System for reading or recording indicia on a flexible disc |
| JPS5756807A (en) * | 1980-09-24 | 1982-04-05 | Canon Inc | Thin film waveguide type head |
| FR2539883B1 (fr) * | 1983-01-25 | 1987-11-06 | Bull Sa | Dispositif optique de focalisation pour la lecture d'un support d'informations defilant devant lui |
| US4610009A (en) * | 1983-05-23 | 1986-09-02 | Xerox Corporation | Writing, erasing and readout system for a magneto-optic recording medium |
| JPS6053863A (ja) * | 1983-09-05 | 1985-03-27 | Sony Corp | 磁気記録媒体の磁化方向検出装置 |
| DE3374477D1 (en) * | 1983-12-21 | 1987-12-17 | Ibm | A disk cartridge having a flexible disk storage medium and a disk file including such a cartridge |
| WO1985002933A1 (en) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Magnetic record medium and apparatus and method for tracking the same |
| US4661875A (en) * | 1985-01-24 | 1987-04-28 | Victor Company Of Japan, Ltd. | Information storage disc assembly |
| JPS61214256A (ja) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | 光磁気デイスク装置 |
| US4843600A (en) * | 1985-09-13 | 1989-06-27 | Canon Kabushiki Kaisha | Recording head for magneto-optical information recording apparatus |
| JPS6282525A (ja) * | 1985-10-08 | 1987-04-16 | Toshiba Corp | 光学ヘツド |
| US4843604A (en) * | 1985-10-16 | 1989-06-27 | Sharp Kabushiki Kaisha | Beam controller for magneto-optical disc memory system |
| JPS62204456A (ja) * | 1986-03-03 | 1987-09-09 | Nippon Telegr & Teleph Corp <Ntt> | 光デイスク装置 |
| JPS62223841A (ja) * | 1986-03-26 | 1987-10-01 | Hitachi Ltd | 磁気記録再生変換器 |
| US4740851A (en) * | 1986-04-21 | 1988-04-26 | Iomega Corporation | Disk drive with spicule member |
| AU600280B2 (en) * | 1986-07-02 | 1990-08-09 | Sony Corporation | Apparatus for optically recording and reproducing information in record tracks on a rotatable record disc |
| JP2575120B2 (ja) * | 1986-07-31 | 1997-01-22 | ソニー株式会社 | 光磁気記録装置 |
| JPH0778916B2 (ja) * | 1986-10-17 | 1995-08-23 | キヤノン株式会社 | 光磁気情報再生装置 |
-
1989
- 1989-03-06 GB GB8905108A patent/GB2216710B/en not_active Expired - Fee Related
- 1989-03-10 IL IL89579A patent/IL89579A0/xx unknown
- 1989-03-13 BR BR898901169A patent/BR8901169A/pt unknown
- 1989-03-13 NO NO89891075A patent/NO891075L/no unknown
- 1989-03-13 DE DE3908150A patent/DE3908150A1/de not_active Withdrawn
- 1989-03-13 SE SE8900879A patent/SE8900879L/xx not_active Application Discontinuation
- 1989-03-13 FR FR8903249A patent/FR2628565B1/fr not_active Expired - Fee Related
- 1989-03-14 ES ES8900926A patent/ES2013115A6/es not_active Expired - Lifetime
- 1989-03-14 KR KR1019890003147A patent/KR890015281A/ko not_active Application Discontinuation
- 1989-03-14 FI FI891202A patent/FI891202A/fi not_active IP Right Cessation
- 1989-03-14 NL NL8900611A patent/NL8900611A/nl unknown
- 1989-03-14 JP JP1059836A patent/JPH0210568A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7428199B2 (en) | 2002-01-22 | 2008-09-23 | Ricoh Company, Ltd. | Optical disk stabilizing apparatus and method of controlling optical disk stabilizing apparatus |
| US8174946B2 (en) | 2002-01-22 | 2012-05-08 | Ricoh Company, Ltd. | Optical disk apparatus and method of controlling optical disk apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FI891202A (fi) | 1989-09-15 |
| GB2216710A (en) | 1989-10-11 |
| NL8900611A (nl) | 1989-10-02 |
| SE8900879D0 (sv) | 1989-03-13 |
| FR2628565A1 (fr) | 1989-09-15 |
| FR2628565B1 (fr) | 1996-05-15 |
| GB8905108D0 (en) | 1989-04-19 |
| GB2216710B (en) | 1992-09-02 |
| NO891075D0 (no) | 1989-03-13 |
| SE8900879L (sv) | 1989-09-15 |
| ES2013115A6 (es) | 1990-04-16 |
| NO891075L (no) | 1989-09-15 |
| DE3908150A1 (de) | 1989-11-30 |
| FI891202A0 (fi) | 1989-03-14 |
| BR8901169A (pt) | 1989-10-31 |
| KR890015281A (ko) | 1989-10-28 |
| IL89579A0 (en) | 1989-09-10 |
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