DE68917715T2 - Magneto-optische aufzeichnungsvorrichtung. - Google Patents
Magneto-optische aufzeichnungsvorrichtung.Info
- Publication number
- DE68917715T2 DE68917715T2 DE68917715T DE68917715T DE68917715T2 DE 68917715 T2 DE68917715 T2 DE 68917715T2 DE 68917715 T DE68917715 T DE 68917715T DE 68917715 T DE68917715 T DE 68917715T DE 68917715 T2 DE68917715 T2 DE 68917715T2
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- sck
- timing
- light
- clock signal
- 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
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
- G11B33/1406—Reducing the influence of the temperature
- G11B33/144—Reducing the influence of the temperature by detection, control, regulation of the temperature
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10504—Recording
- G11B11/10508—Recording by modulating only the magnetic field at the transducer
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/10504—Recording
- G11B11/1051—Recording by modulating both the magnetic field and the light beam at the transducers
- G11B11/10513—Recording by modulating both the magnetic field and the light beam at the transducers one of the light beam or the magnetic field being modulated by data and the other by a clock or frequency generator
-
- 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
- G11B11/10502—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 characterised by the transducing operation to be executed
- G11B11/1053—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 characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
-
- 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
- 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
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/14—Control of operating function, e.g. switching from recording to reproducing by sensing movement or position of head, e.g. means moving in correspondence with head movements
Landscapes
- Optical Head (AREA)
- Lock And Its Accessories (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15772988 | 1988-06-24 | ||
JP63263503A JP2847722B2 (ja) | 1988-06-24 | 1988-10-18 | 光磁気記録装置 |
PCT/JP1989/000612 WO1989012889A1 (en) | 1988-06-24 | 1989-06-19 | Magnetooptical recording apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68917715D1 DE68917715D1 (de) | 1994-09-29 |
DE68917715T2 true DE68917715T2 (de) | 1995-01-12 |
Family
ID=26485080
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68917715T Expired - Fee Related DE68917715T2 (de) | 1988-06-24 | 1989-06-19 | Magneto-optische aufzeichnungsvorrichtung. |
DE68926252T Expired - Fee Related DE68926252T2 (de) | 1988-06-24 | 1989-06-19 | Magneto-optisches Aufzeichnungsgerät |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68926252T Expired - Fee Related DE68926252T2 (de) | 1988-06-24 | 1989-06-19 | Magneto-optisches Aufzeichnungsgerät |
Country Status (7)
Country | Link |
---|---|
US (1) | US5182734A (de) |
EP (2) | EP0392020B1 (de) |
JP (1) | JP2847722B2 (de) |
KR (1) | KR0136709B1 (de) |
AT (2) | ATE136678T1 (de) |
DE (2) | DE68917715T2 (de) |
WO (1) | WO1989012889A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2576643B2 (ja) * | 1989-11-14 | 1997-01-29 | 三菱電機株式会社 | 光磁気記録装置 |
US5537379A (en) | 1991-05-10 | 1996-07-16 | Discovision Associates | Optical data storage and retrieval system and method |
US5345435A (en) * | 1991-08-30 | 1994-09-06 | Sony Corporation | Optical disc and method for recording on optical disc |
US5327417A (en) * | 1991-09-27 | 1994-07-05 | Nsk Ltd. | Optical disk drive and read/write apparatus |
CN1075024A (zh) * | 1992-01-29 | 1993-08-04 | 松下电器产业株式会社 | 录放装置 |
US5450381A (en) * | 1992-07-07 | 1995-09-12 | Sony Corporation | Magneto-optical recording utilizing signal phase adjustment |
JPH06309672A (ja) * | 1993-04-26 | 1994-11-04 | Sony Corp | 光ディスク記録媒体及び光ディスク装置 |
US6091562A (en) * | 1993-08-03 | 2000-07-18 | Sony Corporation | Digital magnetic reproducing apparatus and digital magnetic recording/reproducing apparatus employing detection of second harmonic distortion and signal to noise ratio |
US5793723A (en) * | 1995-06-14 | 1998-08-11 | Nikon Corporation | Method and a system for adjusting optical recording device involving an optical recording medium of non-uniform heat characteristics |
US5742566A (en) * | 1995-11-27 | 1998-04-21 | Sony Corporation | Optical recording methods and apparatus using light modulation technique based on detecting temperature of the medium |
US6278667B1 (en) * | 1998-01-30 | 2001-08-21 | Seagate Technology, Inc. | System and method for light power control in a magneto-optical drive |
JPH11345439A (ja) * | 1998-03-31 | 1999-12-14 | Hitachi Maxell Ltd | 光磁気記録媒体及びその記録再生方法並びに記録再生装置 |
JP2000331394A (ja) | 1999-05-14 | 2000-11-30 | Sanyo Electric Co Ltd | 光磁気記録方法および光磁気記録装置 |
JP4157254B2 (ja) * | 2000-06-14 | 2008-10-01 | シャープ株式会社 | 情報記録再生装置およびそのトラッキングサーボ方法 |
JP2004265463A (ja) * | 2003-01-31 | 2004-09-24 | Sony Corp | データ記録装置、データ記録方法及びプログラム |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5981671A (ja) * | 1982-11-01 | 1984-05-11 | Ricoh Co Ltd | 磁気記録媒体 |
JPS61214266A (ja) * | 1985-03-20 | 1986-09-24 | Hitachi Ltd | 光磁気記録再生装置 |
JPH0756708B2 (ja) * | 1985-04-19 | 1995-06-14 | 三洋電機株式会社 | 光磁気ディスクとその記録装置 |
JPS61276103A (ja) * | 1985-05-31 | 1986-12-06 | Canon Inc | 光磁気メモリ記録方法 |
JPS62154250A (ja) * | 1985-12-25 | 1987-07-09 | Seiko Epson Corp | 光磁気記録装置 |
JPH071562B2 (ja) * | 1986-06-02 | 1995-01-11 | 日本放送協会 | 光磁気デイスクの記録方法 |
JP2575120B2 (ja) * | 1986-07-31 | 1997-01-22 | ソニー株式会社 | 光磁気記録装置 |
JPS63108539A (ja) * | 1986-10-27 | 1988-05-13 | Seiko Epson Corp | 光学式情報記録再生装置 |
JPS63241740A (ja) * | 1987-03-27 | 1988-10-07 | Seiko Epson Corp | 光磁気式記録再生装置の記録方法 |
JP2576521B2 (ja) * | 1987-08-03 | 1997-01-29 | ブラザー工業株式会社 | 光磁気ディスク装置 |
JP2691900B2 (ja) * | 1987-10-26 | 1997-12-17 | 株式会社ニコン | 記録方法 |
US4991158A (en) * | 1988-03-11 | 1991-02-05 | Mitsubishi Denki Kabushiki Kaisha | Optical information recording and reproducing apparatus |
DE69022451T2 (de) * | 1989-03-09 | 1996-03-21 | Canon Kk | Magnetooptisches Aufzeichnungsgerät mit Mitteln zur Verzögerung des Eingangssignales zur Verhinderung von Bitverschiebung. |
JP3469432B2 (ja) * | 1997-06-24 | 2003-11-25 | 住友ベークライト株式会社 | 導電性樹脂ペースト及びこれを用いて製造された半導体装置 |
-
1988
- 1988-10-18 JP JP63263503A patent/JP2847722B2/ja not_active Expired - Lifetime
-
1989
- 1989-06-19 DE DE68917715T patent/DE68917715T2/de not_active Expired - Fee Related
- 1989-06-19 US US07/465,123 patent/US5182734A/en not_active Expired - Lifetime
- 1989-06-19 EP EP89907287A patent/EP0392020B1/de not_active Expired - Lifetime
- 1989-06-19 EP EP93111526A patent/EP0569054B1/de not_active Expired - Lifetime
- 1989-06-19 DE DE68926252T patent/DE68926252T2/de not_active Expired - Fee Related
- 1989-06-19 AT AT93111526T patent/ATE136678T1/de not_active IP Right Cessation
- 1989-06-19 AT AT89907287T patent/ATE110486T1/de not_active IP Right Cessation
- 1989-06-19 WO PCT/JP1989/000612 patent/WO1989012889A1/ja active IP Right Grant
- 1989-06-19 KR KR1019900700374A patent/KR0136709B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR900702521A (ko) | 1990-12-07 |
WO1989012889A1 (en) | 1989-12-28 |
KR0136709B1 (ko) | 1998-04-24 |
JP2847722B2 (ja) | 1999-01-20 |
JPH02126447A (ja) | 1990-05-15 |
EP0392020A4 (en) | 1992-09-02 |
EP0392020A1 (de) | 1990-10-17 |
EP0569054B1 (de) | 1996-04-10 |
DE68926252D1 (de) | 1996-05-15 |
EP0569054A3 (de) | 1993-12-22 |
DE68926252T2 (de) | 1996-08-22 |
DE68917715D1 (de) | 1994-09-29 |
EP0392020B1 (de) | 1994-08-24 |
US5182734A (en) | 1993-01-26 |
EP0569054A2 (de) | 1993-11-10 |
ATE110486T1 (de) | 1994-09-15 |
ATE136678T1 (de) | 1996-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |