DE3886726D1 - Magneto-optisches aufnahmegerät. - Google Patents
Magneto-optisches aufnahmegerät.Info
- Publication number
- DE3886726D1 DE3886726D1 DE88907897T DE3886726T DE3886726D1 DE 3886726 D1 DE3886726 D1 DE 3886726D1 DE 88907897 T DE88907897 T DE 88907897T DE 3886726 T DE3886726 T DE 3886726T DE 3886726 D1 DE3886726 D1 DE 3886726D1
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- recording device
- optical recording
- optical
- recording
- 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 - Lifetime
Links
Classifications
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/084,577 US4965780A (en) | 1987-08-12 | 1987-08-12 | Magneto-optical data recording device using a wavelength and polarization-sensitive splitter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3886726D1 true DE3886726D1 (de) | 1994-02-10 |
Family
ID=22185861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88907897T Expired - Lifetime DE3886726D1 (de) | 1987-08-12 | 1988-08-08 | Magneto-optisches aufnahmegerät. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4965780A (de) |
EP (1) | EP0327636B1 (de) |
JP (1) | JPH01502377A (de) |
CA (1) | CA1307048C (de) |
DE (1) | DE3886726D1 (de) |
WO (1) | WO1989001688A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5644554A (en) * | 1988-01-19 | 1997-07-01 | Hitachi, Ltd. | Magnetic head load/unload device, method and a magneto-optical disk apparatus using the same |
US5270987A (en) * | 1988-02-08 | 1993-12-14 | Hitachi, Ltd. | Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor |
NL8900362A (nl) * | 1989-02-15 | 1990-09-03 | Philips Nv | Werkwijze en inrichting voor het inschrijven en uitlezen van een magneto-optische registratiedrager. |
US5216562A (en) * | 1990-09-25 | 1993-06-01 | International Business Machines Corporation | Multi-beam optical recording system and method |
JPH04289529A (ja) * | 1991-01-09 | 1992-10-14 | Sony Corp | 記録可能ディスク用光学ピックアップ装置及びダイクロイックミラー |
US5483511A (en) * | 1993-02-17 | 1996-01-09 | Vixel Corporation | Multiple beam optical memory system with solid-state lasers |
US5526182A (en) * | 1993-02-17 | 1996-06-11 | Vixel Corporation | Multiple beam optical memory system |
EP0618572B1 (de) * | 1993-04-02 | 2002-07-03 | Canon Kabushiki Kaisha | Magneto-optisches Aufzeichnungsmedium auf dem es moglich ist, Informationen hoher Zeichendichte aufzuzeichnen und Verfahren zur Wiedergabe der aufgezeichneten Informationen |
US5793584A (en) * | 1996-12-13 | 1998-08-11 | Terastor Corporation | Device and method for electrostatically cleaning a disk mounted in a removable cartridge |
ID16848A (id) * | 1996-05-01 | 1997-11-13 | Terastor Corp | Kepala layang dengan lensa padat yang terbenam |
US6270696B1 (en) | 1996-06-03 | 2001-08-07 | Terastor Corporation | Method of fabricating and integrating an optical assembly into a flying head |
US6243350B1 (en) | 1996-05-01 | 2001-06-05 | Terastor Corporation | Optical storage systems with flying optical heads for near-field recording and reading |
US5936928A (en) * | 1996-10-01 | 1999-08-10 | Terastor Corporation | Multilayer media and use with flying head having solid immersion lens |
US5828482A (en) * | 1997-02-05 | 1998-10-27 | Terastor Corporation | Apparatus and method for directing a beam of light to a surface of an optical disk |
US5963532A (en) * | 1998-01-21 | 1999-10-05 | Terastor Corporation | Polarization rotation and phase compensation in near-field electro-optical system |
US6009064A (en) * | 1997-11-05 | 1999-12-28 | Terastor Corporation | Optical head having dielectric transition layer in near-field optical storage system |
US6104675A (en) * | 1998-02-20 | 2000-08-15 | Maxoptix Corporation | Method and apparatus for reading and writing magneto-optical media |
US6330209B1 (en) | 1998-02-20 | 2001-12-11 | Maxoptix Corporation | Load and unload control for magneto-optical disk drive |
US6172944B1 (en) | 1998-02-20 | 2001-01-09 | Maxoptix Corporation | Magneto-optical recording apparatus with magnetic head decoupled from objective lens focus actuator |
US6172945B1 (en) | 1998-09-04 | 2001-01-09 | Maxoptix Corporation | Double-sided magneto-optical recording disk |
US6324130B1 (en) | 1999-01-21 | 2001-11-27 | Maxoptix Corporation | Disc drive suspension and head |
WO2000048172A2 (en) | 1999-02-12 | 2000-08-17 | General Electric Company | Data storage media |
US7179551B2 (en) | 1999-02-12 | 2007-02-20 | General Electric Company | Poly(arylene ether) data storage media |
US6689985B2 (en) * | 2001-01-17 | 2004-02-10 | Orbotech, Ltd. | Laser drill for use in electrical circuit fabrication |
DE60212955T2 (de) * | 2001-04-17 | 2007-02-15 | Koninklijke Philips Electronics N.V. | Optisches abtastgerät |
JP2010238274A (ja) * | 2009-03-30 | 2010-10-21 | Sanyo Electric Co Ltd | 光ピックアップ装置 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3869193A (en) * | 1973-09-18 | 1975-03-04 | Honeywell Inc | Optical memory with improved signal-to-noise ratio |
JPS56101886A (en) * | 1980-01-19 | 1981-08-14 | Oki Electric Ind Co Ltd | Paper feeding device for printer |
US4397027A (en) * | 1981-01-05 | 1983-08-02 | Raytheon Company | Self-compensating gas discharge path for laser gyro |
JPS57162137A (en) * | 1981-03-28 | 1982-10-05 | Kokusai Denshin Denwa Co Ltd <Kdd> | Photomagnetic recording and reproducing system |
JPS583141A (ja) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | 光学ヘツド |
US4517667A (en) * | 1982-06-10 | 1985-05-14 | Xerox Corporation | Direct read after write optical disk system |
JPS5958638A (ja) * | 1982-09-28 | 1984-04-04 | Nec Corp | 光学的記録再生用光ヘツド |
JPS5989750A (ja) * | 1982-11-11 | 1984-05-24 | Japan Metals & Chem Co Ltd | 高炭素フエロクロムの製造法 |
JPS59177735A (ja) * | 1983-03-25 | 1984-10-08 | Canon Inc | 光情報記録再生装置 |
US4610009A (en) * | 1983-05-23 | 1986-09-02 | Xerox Corporation | Writing, erasing and readout system for a magneto-optic recording medium |
NL8301916A (nl) * | 1983-05-31 | 1984-12-17 | Philips Nv | Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor. |
NL8303281A (nl) * | 1983-09-26 | 1985-04-16 | Philips Nv | Werkwijze voor het schrijven van informatie in een magneto-optische registratiedrager, inrichting voor het uitvoeren van de werkwijze en een magneto-optische registratiedrager te gebruiken in een inrichting voor het uitvoeren van de werkwijze. |
JPS60234246A (ja) * | 1984-05-04 | 1985-11-20 | Matsushita Electric Ind Co Ltd | 光学ヘツド |
US4700336A (en) * | 1984-06-19 | 1987-10-13 | Matsushita Electric Industrial Co., Ltd. | Optical recording and playback apparatus using plural light spots |
DE3584945D1 (de) * | 1984-10-30 | 1992-01-30 | Brother Ind Ltd | Magnetooptisches speichermedium und geraet zum schreiben auf und lesen von dem medium. |
JPS61150147A (ja) * | 1984-12-25 | 1986-07-08 | Fujitsu Ltd | 光磁気デイスク用光学ヘツドの制御方式 |
JPS61214256A (ja) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | 光磁気デイスク装置 |
JPS61220154A (ja) * | 1985-03-26 | 1986-09-30 | Seiko Epson Corp | 光磁気記録装置 |
JPS6220149A (ja) * | 1985-07-18 | 1987-01-28 | Fujitsu Ltd | 光学ヘツド |
JPS6212942A (ja) * | 1986-03-19 | 1987-01-21 | Sanyo Electric Co Ltd | 光磁気記録再生装置 |
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 |
-
1987
- 1987-08-12 US US07/084,577 patent/US4965780A/en not_active Expired - Lifetime
-
1988
- 1988-08-08 WO PCT/US1988/002710 patent/WO1989001688A1/en active IP Right Grant
- 1988-08-08 JP JP63507147A patent/JPH01502377A/ja active Pending
- 1988-08-08 DE DE88907897T patent/DE3886726D1/de not_active Expired - Lifetime
- 1988-08-08 EP EP88907897A patent/EP0327636B1/de not_active Expired - Lifetime
- 1988-08-11 CA CA000574399A patent/CA1307048C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4965780A (en) | 1990-10-23 |
JPH01502377A (ja) | 1989-08-17 |
EP0327636B1 (de) | 1993-12-29 |
EP0327636A1 (de) | 1989-08-16 |
WO1989001688A1 (en) | 1989-02-23 |
CA1307048C (en) | 1992-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |