DE68917638T2 - Magneto-optisches Datenaufzeichnungssystem. - Google Patents
Magneto-optisches Datenaufzeichnungssystem.Info
- Publication number
- DE68917638T2 DE68917638T2 DE68917638T DE68917638T DE68917638T2 DE 68917638 T2 DE68917638 T2 DE 68917638T2 DE 68917638 T DE68917638 T DE 68917638T DE 68917638 T DE68917638 T DE 68917638T DE 68917638 T2 DE68917638 T2 DE 68917638T2
- Authority
- DE
- Germany
- Prior art keywords
- magneto
- data recording
- optical data
- recording system
- optical
- 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
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/00745—Sectoring or header formats within a track
-
- 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
- G11B11/10517—Overwriting or erasing
- G11B11/10519—Direct overwriting, i.e. performing erasing and recording using the same transducing means
- G11B11/10521—Direct overwriting, i.e. performing erasing and recording using the same transducing means using a single light spot
-
- 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
- G11B11/10528—Shaping of magnetic domains, e.g. form, dimensions
-
- 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
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
-
- 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
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/006—Overwriting
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63121734A JP2669532B2 (ja) | 1988-05-20 | 1988-05-20 | 光ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68917638D1 DE68917638D1 (de) | 1994-09-29 |
DE68917638T2 true DE68917638T2 (de) | 1994-12-22 |
Family
ID=14818561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68917638T Expired - Fee Related DE68917638T2 (de) | 1988-05-20 | 1989-05-17 | Magneto-optisches Datenaufzeichnungssystem. |
Country Status (4)
Country | Link |
---|---|
US (6) | US5170383A (de) |
EP (1) | EP0342624B1 (de) |
JP (1) | JP2669532B2 (de) |
DE (1) | DE68917638T2 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2669532B2 (ja) * | 1988-05-20 | 1997-10-29 | 株式会社日立製作所 | 光ディスク装置 |
EP0635827B1 (de) * | 1989-08-22 | 1997-07-23 | Sony Corporation | Vorrichtung zur Regelung der Position eines Magnetkopfes |
US5345435A (en) * | 1991-08-30 | 1994-09-06 | Sony Corporation | Optical disc and method for recording on optical disc |
US5450381A (en) * | 1992-07-07 | 1995-09-12 | Sony Corporation | Magneto-optical recording utilizing signal phase adjustment |
KR100287493B1 (ko) * | 1993-02-12 | 2001-04-16 | 이데이 노부유끼 | 디스크구동장치 |
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 |
US5835465A (en) * | 1993-05-26 | 1998-11-10 | Richo Company, Ltd. | Magneto-optic disk drive controlling apparatus |
JP3333613B2 (ja) * | 1993-12-07 | 2002-10-15 | 株式会社日立製作所 | 光情報記録媒体並びに光情報記録再生方法及び光情報記録再生装置 |
US5761172A (en) * | 1994-03-25 | 1998-06-02 | Hitachi, Ltd. | Method of optical reproduction using pulsed light |
WO1996006433A1 (fr) * | 1994-08-25 | 1996-02-29 | Sony Corporation | Disque optique et unite de disque optique |
US5771211A (en) * | 1995-04-26 | 1998-06-23 | Sanyo Electric Co., Ltd. | Magneto-optical recording media having a reading layer with a specified range of temperature coefficients of a kerr rotation angle |
EP0844609A4 (de) * | 1995-08-09 | 2007-10-17 | Hitachi Ltd | Gerät für optische platten |
JPH1074344A (ja) * | 1996-06-26 | 1998-03-17 | So Fukada | 磁気光学データ記録の再生装置 |
JPH10162443A (ja) * | 1996-12-02 | 1998-06-19 | Sanyo Electric Co Ltd | 情報再生装置 |
US6786420B1 (en) | 1997-07-15 | 2004-09-07 | Silverbrook Research Pty. Ltd. | Data distribution mechanism in the form of ink dots on cards |
JPH10269502A (ja) * | 1997-03-26 | 1998-10-09 | Fujitsu Ltd | 磁気記録方法および磁気ディスク装置 |
US6618117B2 (en) | 1997-07-12 | 2003-09-09 | Silverbrook Research Pty Ltd | Image sensing apparatus including a microcontroller |
US6985207B2 (en) | 1997-07-15 | 2006-01-10 | Silverbrook Research Pty Ltd | Photographic prints having magnetically recordable media |
AUPO850597A0 (en) | 1997-08-11 | 1997-09-04 | Silverbrook Research Pty Ltd | Image processing method and apparatus (art01a) |
US6690419B1 (en) | 1997-07-15 | 2004-02-10 | Silverbrook Research Pty Ltd | Utilising eye detection methods for image processing in a digital image camera |
US7551201B2 (en) | 1997-07-15 | 2009-06-23 | Silverbrook Research Pty Ltd | Image capture and processing device for a print on demand digital camera system |
US7110024B1 (en) | 1997-07-15 | 2006-09-19 | Silverbrook Research Pty Ltd | Digital camera system having motion deblurring means |
AUPO802797A0 (en) | 1997-07-15 | 1997-08-07 | Silverbrook Research Pty Ltd | Image processing method and apparatus (ART54) |
US6624848B1 (en) | 1997-07-15 | 2003-09-23 | Silverbrook Research Pty Ltd | Cascading image modification using multiple digital cameras incorporating image processing |
US6879341B1 (en) | 1997-07-15 | 2005-04-12 | Silverbrook Research Pty Ltd | Digital camera system containing a VLIW vector processor |
KR100236004B1 (ko) | 1997-10-31 | 2000-01-15 | 구자홍 | 광자기 기록매체로부터 기록정보를 재생하는 장치및 방법 |
KR100257188B1 (ko) * | 1997-11-10 | 2000-05-15 | 구자홍 | 광자기 기록매체로부터 기록정보를 재생하는 장치및 방법 |
KR100239468B1 (ko) * | 1997-11-14 | 2000-01-15 | 구자홍 | 광자기 기록매체로부터 기록 정보를 재생하는 방법 및 장치 |
JPH11185314A (ja) * | 1997-12-25 | 1999-07-09 | Sanyo Electric Co Ltd | 情報記録再生装置 |
KR100294332B1 (ko) * | 1997-12-31 | 2002-07-31 | 엘지전자 주식회사 | 광자기 기록매체의 데이터 기록방법 및 장치 |
KR100312493B1 (ko) * | 1997-12-31 | 2001-12-28 | 구자홍 | 광자기기록매체상의기록방법및장치 |
US6414912B1 (en) | 1998-02-04 | 2002-07-02 | Hitachi, Ltd. | Optical disk device using a recording medium structurally arranged to generate a recording clock |
AUPP702098A0 (en) | 1998-11-09 | 1998-12-03 | Silverbrook Research Pty Ltd | Image creation method and apparatus (ART73) |
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 |
AUPQ056099A0 (en) | 1999-05-25 | 1999-06-17 | Silverbrook Research Pty Ltd | A method and apparatus (pprint01) |
JP3542761B2 (ja) * | 1999-05-25 | 2004-07-14 | エルジー電子株式会社 | 光記録媒体の非記録領域検出方法並びに装置 |
JP3915320B2 (ja) | 1999-06-02 | 2007-05-16 | 株式会社日立製作所 | 情報記録装置及び情報記録方法 |
JP2001076394A (ja) * | 1999-09-03 | 2001-03-23 | Fujitsu Ltd | 光磁気記録方法及び装置 |
JP2002074678A (ja) * | 2000-09-04 | 2002-03-15 | Pioneer Electronic Corp | 光学式記録媒体 |
JP4491985B2 (ja) * | 2001-03-28 | 2010-06-30 | Tdk株式会社 | 光記録方法 |
JP2004005874A (ja) * | 2001-08-07 | 2004-01-08 | Mitsubishi Chemicals Corp | 磁気記録媒体の磁化パターン形成方法及び製造方法、磁化パターン形成装置、磁気記録媒体、並びに磁気記録装置 |
JP2005267696A (ja) * | 2004-03-16 | 2005-09-29 | Pioneer Electronic Corp | 駆動装置、駆動方法、駆動用プログラム及び情報記録媒体並びに情報処理装置 |
US20110292546A1 (en) * | 2010-05-25 | 2011-12-01 | Seagate Technology Llc | Timing track for master template substrate |
US8503125B2 (en) * | 2011-05-27 | 2013-08-06 | HGST Netherlands B.V. | Channel-source laser-pulsing system architecture for thermal-assisted recording |
Family Cites Families (23)
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JPS51107121A (ja) * | 1975-03-17 | 1976-09-22 | Yoshifumi Sakurai | Hikarijikikirokuhoshiki |
JPS5223318A (en) * | 1975-08-15 | 1977-02-22 | Teac Co | Optical magnetic recording method |
FR2528605B1 (fr) * | 1982-06-15 | 1987-11-20 | Thomson Csf | Procede et dispositif optique de focalisation d'un faisceau d'energie lumineuse sur un plan de reference d'un support d'information ainsi que ce support |
JPS59113507A (ja) * | 1982-12-21 | 1984-06-30 | Nec Corp | 光磁気記録再生消去方法及びその装置 |
JPS59113506A (ja) * | 1982-12-21 | 1984-06-30 | Nec Corp | 光磁気記録再生消去方法及びその装置 |
JPS6032148A (ja) * | 1983-08-02 | 1985-02-19 | Ricoh Co Ltd | 光磁気記録装置 |
JPH0619863B2 (ja) * | 1984-06-13 | 1994-03-16 | 株式会社日立製作所 | 光磁気情報記憶方法及び装置 |
JPH0721895B2 (ja) * | 1985-02-19 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
US4742218A (en) * | 1985-03-11 | 1988-05-03 | Hitachi, Ltd. | Focus error detection apparatus utilizing focusing an front and rear sides of focal planes |
US4707816A (en) * | 1985-03-29 | 1987-11-17 | Hitachi, Ltd. | Method and apparatus for composite wobbled and push-pull tracking servo system |
US4748609A (en) * | 1985-03-29 | 1988-05-31 | Hitachi, Ltd. | Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset |
US4882718A (en) * | 1986-03-07 | 1989-11-21 | Movid Information Technology, Inc. | Single-head, direct overwrite magneto-optic system and method |
JPH0721897B2 (ja) * | 1986-04-24 | 1995-03-08 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 光磁気データ記録装置 |
JPS6332753A (ja) * | 1986-07-25 | 1988-02-12 | Konica Corp | 情報記録方法 |
JP2575120B2 (ja) * | 1986-07-31 | 1997-01-22 | ソニー株式会社 | 光磁気記録装置 |
WO1988001092A1 (en) * | 1986-07-31 | 1988-02-11 | Sony Corporation | Optical disc recording/reproducing apparatus |
US4949325A (en) * | 1987-03-18 | 1990-08-14 | Hitachi, Ltd. | Method and associated apparatus and medium for optical recording and reproducing information |
NL8703011A (nl) * | 1987-12-14 | 1989-07-03 | Philips Nv | Werkwijze voor het optekenen van informatie op een registratiedrager van het thermo-magnetische type, alsmede een inrichting voor het uitvoeren van de werkwijze. |
US5073880A (en) * | 1987-12-18 | 1991-12-17 | Hitachi, Ltd. | Information recording/reproducing method and apparatus |
JP2679079B2 (ja) * | 1988-02-18 | 1997-11-19 | ソニー株式会社 | 光磁気記録方法 |
US5014254A (en) * | 1988-05-09 | 1991-05-07 | U.S. Philips Corporation | Magneto-optical recording method and magneto-optical recording apparatus |
JP2669532B2 (ja) * | 1988-05-20 | 1997-10-29 | 株式会社日立製作所 | 光ディスク装置 |
JPH06332753A (ja) * | 1993-05-27 | 1994-12-02 | Fujitsu Ltd | 実装パッケージの種別変化検出方法 |
-
1988
- 1988-05-20 JP JP63121734A patent/JP2669532B2/ja not_active Expired - Fee Related
-
1989
- 1989-05-17 DE DE68917638T patent/DE68917638T2/de not_active Expired - Fee Related
- 1989-05-17 EP EP89108826A patent/EP0342624B1/de not_active Expired - Lifetime
- 1989-05-18 US US07/353,602 patent/US5170383A/en not_active Expired - Fee Related
-
1992
- 1992-11-20 US US07/979,338 patent/US5473581A/en not_active Expired - Fee Related
-
1995
- 1995-04-26 US US08/429,008 patent/US5579292A/en not_active Expired - Fee Related
-
1996
- 1996-11-06 US US08/744,760 patent/US5726955A/en not_active Expired - Fee Related
-
1997
- 1997-09-17 US US08/932,056 patent/US5959943A/en not_active Expired - Fee Related
- 1997-09-17 US US08/932,055 patent/US5886958A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0342624B1 (de) | 1994-08-24 |
DE68917638D1 (de) | 1994-09-29 |
US5959943A (en) | 1999-09-28 |
US5579292A (en) | 1996-11-26 |
US5473581A (en) | 1995-12-05 |
US5726955A (en) | 1998-03-10 |
US5170383A (en) | 1992-12-08 |
JPH01292603A (ja) | 1989-11-24 |
US5886958A (en) | 1999-03-23 |
JP2669532B2 (ja) | 1997-10-29 |
EP0342624A3 (en) | 1990-11-22 |
EP0342624A2 (de) | 1989-11-23 |
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