FR2628565B1 - Systeme de memorisation a lecture/ecriture optique et appareil pour lire et/ou ecrire sur un support souple des donnees pouvant etre detectees optiquement - Google Patents
Systeme de memorisation a lecture/ecriture optique et appareil pour lire et/ou ecrire sur un support souple des donnees pouvant etre detectees optiquementInfo
- Publication number
- FR2628565B1 FR2628565B1 FR8903249A FR8903249A FR2628565B1 FR 2628565 B1 FR2628565 B1 FR 2628565B1 FR 8903249 A FR8903249 A FR 8903249A FR 8903249 A FR8903249 A FR 8903249A FR 2628565 B1 FR2628565 B1 FR 2628565B1
- Authority
- FR
- France
- Prior art keywords
- reading
- memory system
- write memory
- detected data
- optical 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.)
- Expired - Fee Related
Links
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 (2)
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2628565A1 FR2628565A1 (fr) | 1989-09-15 |
FR2628565B1 true FR2628565B1 (fr) | 1996-05-15 |
Family
ID=26863354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8903249A Expired - Fee Related FR2628565B1 (fr) | 1988-03-14 | 1989-03-13 | Systeme de memorisation a lecture/ecriture optique et appareil pour lire et/ou ecrire sur un support souple des donnees pouvant etre detectees optiquement |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPH0210568A (fr) |
KR (1) | KR890015281A (fr) |
BR (1) | BR8901169A (fr) |
DE (1) | DE3908150A1 (fr) |
ES (1) | ES2013115A6 (fr) |
FI (1) | FI891202A (fr) |
FR (1) | FR2628565B1 (fr) |
GB (1) | GB2216710B (fr) |
IL (1) | IL89579A0 (fr) |
NL (1) | NL8900611A (fr) |
NO (1) | NO891075L (fr) |
SE (1) | SE8900879L (fr) |
Families Citing this family (3)
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 |
US7164629B2 (en) | 2002-01-22 | 2007-01-16 | Ricoh Company, Ltd. | Method of controlling an optical disk apparatus |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2167258A5 (fr) * | 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 (fr) * | 1983-12-27 | 1985-07-04 | Ncr Corporation | Milieu d'enregistrement magnetique et appareil et procede pour suivre une piste de celui-ci |
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 |
DE3688276T2 (de) * | 1985-10-16 | 1993-07-29 | Sharp Kk | Steuervorrichtung des buendels fuer magnetooptisches plattenspeichersystem. |
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 SE SE8900879A patent/SE8900879L/xx not_active Application Discontinuation
- 1989-03-13 FR FR8903249A patent/FR2628565B1/fr not_active Expired - Fee Related
- 1989-03-13 DE DE3908150A patent/DE3908150A1/de not_active Withdrawn
- 1989-03-13 NO NO89891075A patent/NO891075L/no unknown
- 1989-03-14 JP JP1059836A patent/JPH0210568A/ja active Pending
- 1989-03-14 FI FI891202A patent/FI891202A/fi not_active IP Right Cessation
- 1989-03-14 KR KR1019890003147A patent/KR890015281A/ko not_active Application Discontinuation
- 1989-03-14 NL NL8900611A patent/NL8900611A/nl unknown
- 1989-03-14 ES ES8900926A patent/ES2013115A6/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FI891202A0 (fi) | 1989-03-14 |
NL8900611A (nl) | 1989-10-02 |
FR2628565A1 (fr) | 1989-09-15 |
SE8900879L (sv) | 1989-09-15 |
BR8901169A (pt) | 1989-10-31 |
NO891075D0 (no) | 1989-03-13 |
JPH0210568A (ja) | 1990-01-16 |
FI891202A (fi) | 1989-09-15 |
DE3908150A1 (de) | 1989-11-30 |
ES2013115A6 (es) | 1990-04-16 |
IL89579A0 (en) | 1989-09-10 |
GB8905108D0 (en) | 1989-04-19 |
GB2216710B (en) | 1992-09-02 |
GB2216710A (en) | 1989-10-11 |
NO891075L (no) | 1989-09-15 |
KR890015281A (ko) | 1989-10-28 |
SE8900879D0 (sv) | 1989-03-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |