FR2558002B1 - Appareil enregistreur et reproducteur d'informations - Google Patents
Appareil enregistreur et reproducteur d'informationsInfo
- Publication number
- FR2558002B1 FR2558002B1 FR8500174A FR8500174A FR2558002B1 FR 2558002 B1 FR2558002 B1 FR 2558002B1 FR 8500174 A FR8500174 A FR 8500174A FR 8500174 A FR8500174 A FR 8500174A FR 2558002 B1 FR2558002 B1 FR 2558002B1
- Authority
- FR
- France
- Prior art keywords
- information recording
- reproducing apparatus
- reproducing
- recording
- information
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
-
- 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
-
- 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
- G11B11/10595—Control of operating function
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/005—Reproducing at a different information rate from the information rate of 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59000834A JPS60145534A (ja) | 1984-01-09 | 1984-01-09 | 記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2558002A1 FR2558002A1 (fr) | 1985-07-12 |
FR2558002B1 true FR2558002B1 (fr) | 1988-06-24 |
Family
ID=11484646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8500174A Expired FR2558002B1 (fr) | 1984-01-09 | 1985-01-08 | Appareil enregistreur et reproducteur d'informations |
Country Status (4)
Country | Link |
---|---|
US (1) | US4788671A (fr) |
JP (1) | JPS60145534A (fr) |
DE (1) | DE3500325A1 (fr) |
FR (1) | FR2558002B1 (fr) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4841502A (en) * | 1985-06-14 | 1989-06-20 | Kabushiki Kaisha Toshiba | Information recording system and reproducing for recording and reproducing information on a magneto-optical disk |
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 |
US5237547A (en) * | 1987-10-06 | 1993-08-17 | Nikon Corporation | Multi-head magneto-optical disk apparatus |
EP0587458A3 (fr) * | 1987-11-30 | 1995-01-18 | Pioneer Electronic Corp | Lecteur de disque à double face. |
NL8902615A (nl) * | 1988-11-15 | 1990-06-01 | Seiko Epson Corp | Optisch registratiestelsel. |
US5231614A (en) * | 1989-01-13 | 1993-07-27 | Mitsubishi Denki Kabushiki Kaisha | Magneto-optical eraser |
US5276669A (en) * | 1989-04-21 | 1994-01-04 | The Tokyo Electric Power Co., Inc. | Synchronous recording and playback of left and right stereo channels on separate digital discs |
US5161137A (en) * | 1989-07-12 | 1992-11-03 | Ricoh Company, Ltd. | Optical disk apparatus with a plurality of heads |
US5197049A (en) * | 1989-08-11 | 1993-03-23 | Apple Computer, Inc. | Head and media for optical data storage |
US5392263A (en) * | 1990-01-31 | 1995-02-21 | Sony Corporation | Magneto-optical disk system with specified thickness for protective layer on the disk relative to the numerical aperture of the objective lens |
JP2853375B2 (ja) * | 1991-07-04 | 1999-02-03 | 松下電器産業株式会社 | 光学的記録再生装置 |
US5910932A (en) * | 1991-09-11 | 1999-06-08 | Sony Corporation | Optical disk and optical disk system with numerical aperture of objective lens related to protective layer thickness of optical disk |
JPH08203147A (ja) * | 1994-11-24 | 1996-08-09 | Nikon Corp | 光磁気ディスクドライブ装置 |
JPH08249824A (ja) * | 1995-03-15 | 1996-09-27 | Nikon Corp | 光ディスク再生装置及び光ディスク記録装置 |
US6226233B1 (en) * | 1996-07-30 | 2001-05-01 | Seagate Technology, Inc. | Magneto-optical system utilizing MSR media |
JPH1139782A (ja) * | 1997-07-16 | 1999-02-12 | Fujitsu Ltd | 光ディスクの撓み抑制装置及び光ディスク装置 |
US6172944B1 (en) * | 1998-02-20 | 2001-01-09 | Maxoptix Corporation | Magneto-optical recording apparatus with magnetic head decoupled from objective lens focus actuator |
US6330209B1 (en) | 1998-02-20 | 2001-12-11 | Maxoptix Corporation | Load and unload control for magneto-optical disk drive |
US6104675A (en) * | 1998-02-20 | 2000-08-15 | Maxoptix Corporation | Method and apparatus for reading and writing magneto-optical media |
US6172945B1 (en) * | 1998-09-04 | 2001-01-09 | Maxoptix Corporation | Double-sided magneto-optical recording disk |
TW540038B (en) * | 1998-10-13 | 2003-07-01 | Matsushita Electric Ind Co Ltd | Recording/reproducing apparatus for optical information recording medium and optical head |
US6324130B1 (en) | 1999-01-21 | 2001-11-27 | Maxoptix Corporation | Disc drive suspension and head |
KR20040105361A (ko) * | 2003-06-07 | 2004-12-16 | 삼성전자주식회사 | 광디스크 드라이브 |
CN108735236B (zh) * | 2017-04-13 | 2021-01-12 | 光宝电子(广州)有限公司 | 具有多个光学读写头的光碟机 |
CN108735237B (zh) * | 2017-04-24 | 2020-06-16 | 光宝电子(广州)有限公司 | 具有多个光学读写头的光驱 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3641278A (en) * | 1968-05-29 | 1972-02-08 | Victor Company Of Japan | Magnetic disc recording and reproducing time indicator |
GB1291456A (en) * | 1968-10-29 | 1972-10-04 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing apparatus |
DE2022265C3 (de) * | 1970-05-06 | 1974-08-15 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Anordnung zur Aufzeichnung und Wiedergabe analoger und digitaler Daten auf einem lichtempfindlichen Band |
DE2134261C3 (de) * | 1971-07-09 | 1974-02-21 | Helge B. Dipl.-Ing. 4000 Duesseldorf Cohausz | Vorrichtung für magnetische Aufnahmen mit zwei spiralig angeordneten Aufnahmespuren |
US4219704A (en) * | 1974-10-21 | 1980-08-26 | Eli S. Jacobs | Record playback apparatus for optical data records |
US3924146A (en) * | 1975-01-27 | 1975-12-02 | California Computer Products | Multiple linear motor positioning system |
FR2474221A1 (fr) * | 1980-01-23 | 1981-07-24 | Thomson Csf | Dispositif optique d'enregistrement-lecture de supports d'information et systeme de memoire optique comportant un tel systeme |
US4561032A (en) * | 1981-06-02 | 1985-12-24 | Canon Kabushiki Kaisha | Magnetooptic reproducing device |
US4603414A (en) * | 1983-02-14 | 1986-07-29 | News Log International | Apparatus for making a data record carrier |
JPS59195351A (ja) * | 1983-04-21 | 1984-11-06 | Sony Corp | 光学式デイスクレコ−ダ |
-
1984
- 1984-01-09 JP JP59000834A patent/JPS60145534A/ja active Pending
- 1984-12-26 US US06/686,152 patent/US4788671A/en not_active Expired - Lifetime
-
1985
- 1985-01-07 DE DE19853500325 patent/DE3500325A1/de active Granted
- 1985-01-08 FR FR8500174A patent/FR2558002B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3500325C2 (fr) | 1989-04-27 |
JPS60145534A (ja) | 1985-08-01 |
US4788671A (en) | 1988-11-29 |
DE3500325A1 (de) | 1985-07-18 |
FR2558002A1 (fr) | 1985-07-12 |
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