DE69834803D1 - Vorrichtung zur optischen Speicherung sowie Verfahren zur Speicherung und Wiedergabe - Google Patents
Vorrichtung zur optischen Speicherung sowie Verfahren zur Speicherung und WiedergabeInfo
- Publication number
- DE69834803D1 DE69834803D1 DE69834803T DE69834803T DE69834803D1 DE 69834803 D1 DE69834803 D1 DE 69834803D1 DE 69834803 T DE69834803 T DE 69834803T DE 69834803 T DE69834803 T DE 69834803T DE 69834803 D1 DE69834803 D1 DE 69834803D1
- Authority
- DE
- Germany
- Prior art keywords
- reproduction
- storage
- storage device
- optical storage
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
- G11B7/1263—Power control during transducing, e.g. by monitoring
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- 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
-
- 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
- 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
- G11B7/005—Reproducing
-
- 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
- G11B11/10515—Reproducing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06499098A JP3778399B2 (ja) | 1998-03-16 | 1998-03-16 | 光学的記憶装置及び光記憶媒体の記録再生方法 |
JP6499098 | 1998-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69834803D1 true DE69834803D1 (de) | 2006-07-20 |
DE69834803T2 DE69834803T2 (de) | 2006-11-09 |
Family
ID=13274015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69834803T Expired - Fee Related DE69834803T2 (de) | 1998-03-16 | 1998-09-30 | Vorrichtung zur optischen Speicherung sowie Verfahren zur Speicherung und Wiedergabe |
Country Status (6)
Country | Link |
---|---|
US (1) | US6331966B1 (de) |
EP (1) | EP0944051B1 (de) |
JP (1) | JP3778399B2 (de) |
KR (1) | KR100341667B1 (de) |
CN (1) | CN1112678C (de) |
DE (1) | DE69834803T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3429166B2 (ja) | 1997-08-28 | 2003-07-22 | 富士通株式会社 | 光学的記憶装置 |
JP2000182292A (ja) * | 1998-12-15 | 2000-06-30 | Fujitsu Ltd | 光学的記憶装置及び光記憶媒体の記録再生方法 |
TW494403B (en) * | 1998-12-24 | 2002-07-11 | Koninkl Philips Electronics Nv | Device having a first operational state for writing information onto a record carrier |
US6557126B1 (en) * | 2000-01-31 | 2003-04-29 | Oak Technology, Inc. | Method and apparatus for calibrating write power |
DE10064775A1 (de) | 2000-12-22 | 2002-06-27 | Thomson Brandt Gmbh | Verfahren und Anordnung zum Regeln der Lichtleistung eines Abtaststrahls in einem Gerät zum Lesen oder zum Beschreiben optischer Aufzeichnungsträger |
KR20030065879A (ko) * | 2002-02-01 | 2003-08-09 | 주식회사 히타치엘지 데이터 스토리지 코리아 | 광디스크의 기록파워 자동조절장치 |
CN1695189A (zh) * | 2002-11-29 | 2005-11-09 | 富士通株式会社 | 磁光存储介质的再现方法和使用该方法的磁光存储装置 |
CN101101761A (zh) * | 2003-10-03 | 2008-01-09 | 日本先锋公司 | 信息记录介质和信息记录装置及方法 |
TWI233114B (en) * | 2003-10-24 | 2005-05-21 | Lite On It Corp | Method of determining the time of executing optimal power calibration of an optical drive |
TWI226603B (en) * | 2003-10-29 | 2005-01-11 | Mediatek Inc | A method for handling an interrupt request in an optical storage drive |
KR100563677B1 (ko) * | 2003-11-04 | 2006-03-28 | 엘지전자 주식회사 | 기록 장치에서의 최적 기록 파워 서치방법 및 이를 위한기록매체 |
KR20050081260A (ko) * | 2004-02-11 | 2005-08-19 | 삼성전자주식회사 | 초해상 정보저장매체에 기록된 정보 재생방법 및 장치 |
TW200532675A (en) * | 2004-03-26 | 2005-10-01 | Liteon It Corp | Method of determining the time of adjusting writing strategy of an optical drive |
US7366997B1 (en) * | 2005-01-11 | 2008-04-29 | Synplicity, Inc. | Methods and apparatuses for thermal analysis based circuit design |
TW200721121A (en) * | 2005-06-29 | 2007-06-01 | Koninkl Philips Electronics Nv | Detection of data degeneration within optical discs |
US8369191B2 (en) * | 2010-11-29 | 2013-02-05 | Tdk Corporation | Method for controlling the current of laser diode on thermally assisted magnetic recording head |
JP5808273B2 (ja) * | 2012-03-01 | 2015-11-10 | 株式会社日立製作所 | 磁気ヘッド、ヘッド駆動制御装置、磁気記憶装置、その制御方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58179904A (ja) | 1982-04-15 | 1983-10-21 | Pioneer Electronic Corp | 情報記録方式 |
JPS61260439A (ja) | 1985-05-14 | 1986-11-18 | Canon Inc | 光学的情報記録装置 |
JPH01191325A (ja) | 1988-01-25 | 1989-08-01 | Canon Inc | 光学的情報処理装置 |
JP2573281B2 (ja) | 1988-02-05 | 1997-01-22 | 株式会社東芝 | 光磁気ディスクの再生方法 |
JP3057516B2 (ja) * | 1991-02-05 | 2000-06-26 | ソニー株式会社 | 光記録媒体の信号再生方法 |
JP3057517B2 (ja) * | 1991-02-05 | 2000-06-26 | ソニー株式会社 | 光記録媒体の信号再生方法 |
JP2959586B2 (ja) | 1991-02-12 | 1999-10-06 | ソニー株式会社 | 光磁気ディスクの再生方法 |
DE69120671T2 (de) * | 1991-02-13 | 1997-02-27 | Sony Corp | Verfahren zur wiedergabe von signalen in optischem aufzeichnungsmedium |
JPH06150423A (ja) | 1993-01-07 | 1994-05-31 | Ricoh Co Ltd | 光磁気記録装置 |
US5596555A (en) * | 1993-07-29 | 1997-01-21 | Canon Kabushiki Kaisha | Magnetooptical recording medium having magnetic layers that satisfy predetermined coercive force relationships, and recording/reproduction method for the medium |
US5637394A (en) * | 1993-12-17 | 1997-06-10 | Sharp Kabushiki Kaisha | Magneto-optical recording medium and method of reproducing magneto-optical information using thereof |
JP3088619B2 (ja) * | 1994-01-17 | 2000-09-18 | 富士通株式会社 | 光磁気記録媒体及び該媒体に記録された情報の再生方法 |
US5699342A (en) * | 1994-02-07 | 1997-12-16 | Mitsubishi Denki Kabushiki Kaisha | Method of and device for recording and playing back an optical disk having a test playback region utilizing pits of minimum size for controlling the power of the laser |
JP3492800B2 (ja) * | 1995-02-17 | 2004-02-03 | 富士通株式会社 | 光記録装置及び再生レーザパワー設定方法 |
JPH10188385A (ja) * | 1996-12-17 | 1998-07-21 | Fujitsu Ltd | 光磁気記録媒体の再生方法及び再生装置 |
KR100239468B1 (ko) * | 1997-11-14 | 2000-01-15 | 구자홍 | 광자기 기록매체로부터 기록 정보를 재생하는 방법 및 장치 |
-
1998
- 1998-03-16 JP JP06499098A patent/JP3778399B2/ja not_active Expired - Fee Related
- 1998-09-29 US US09/162,525 patent/US6331966B1/en not_active Expired - Fee Related
- 1998-09-30 DE DE69834803T patent/DE69834803T2/de not_active Expired - Fee Related
- 1998-09-30 EP EP98307936A patent/EP0944051B1/de not_active Expired - Lifetime
- 1998-11-05 KR KR1019980047278A patent/KR100341667B1/ko not_active IP Right Cessation
- 1998-12-11 CN CN98117086A patent/CN1112678C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3778399B2 (ja) | 2006-05-24 |
KR100341667B1 (ko) | 2002-10-31 |
EP0944051B1 (de) | 2006-06-07 |
DE69834803T2 (de) | 2006-11-09 |
US6331966B1 (en) | 2001-12-18 |
EP0944051A3 (de) | 2002-01-30 |
KR19990076529A (ko) | 1999-10-15 |
EP0944051A2 (de) | 1999-09-22 |
CN1112678C (zh) | 2003-06-25 |
CN1229230A (zh) | 1999-09-22 |
JPH11259925A (ja) | 1999-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60135580D1 (de) | Vorrichtung und verfahren zur optischen informationsaufzeichnung | |
DE69832802D1 (de) | Vorrichtung und verfahren zur optischen übertragungstechnik | |
DE69724711D1 (de) | Verfahren und Vorrichtung zur optischen Inspektion | |
DE69912577D1 (de) | Vorrichtung und verfahren zur optischen inspektion | |
DE69827769D1 (de) | Verfahren und Vorrichtung zur Aberrationskorrektur | |
DE69930884D1 (de) | Verfahren und Vorrichtung zur Wiedergabe von optischen Informationen | |
DE69734399D1 (de) | Verfahren und vorrichtung zur stapel-cachespeicherung | |
DE60119930D1 (de) | Verfahren und vorrichtung zur hochauflösenden kohärenten optischen abbildung | |
DE69938372D1 (de) | Verfahren und Vorrichtung zur Videokodierung | |
DE69604001D1 (de) | Verfahren und Vorrichtung zur optischen Verstärkung | |
DE69832831D1 (de) | Vorrichtung und Verfahren zur Signalaufzeichnung/-wiedergabe | |
DE60026917D1 (de) | Verfahren und Vorrichtung zur optischen Aufnahme und Wiedergabe | |
DE69901525D1 (de) | Verfahren und vorrichtung zur videokodierung | |
DE69920845D1 (de) | Verfahren und Vorrichtung zur Datenübertragung in synchronen optischen Netzen | |
DE69731937D1 (de) | Verfahren und vorrichtung zur datencodierung | |
DE50007073D1 (de) | Verfahren und vorrichtung zur strahlformung | |
DE69834803D1 (de) | Vorrichtung zur optischen Speicherung sowie Verfahren zur Speicherung und Wiedergabe | |
DE69705343D1 (de) | Vorrichtung und Verfahren zur optischen Aufzeichnung und Wiedergabe von Information | |
DE69834317D1 (de) | Verfahren und vorrichtung zur audioaufzeichnung, aufzeichnungsträger und wiedergabevorrichtung | |
DE69940442D1 (de) | Vorrichtung und verfahren zur dreidimensionalen bildaufnahme und vorrichtung und verfahren zur dreidimensionalen bildwiedergabe | |
DE69934403D1 (de) | Verfahren und vorrichtung zur digitalen kanalisierung und dekanalisierung | |
DE69622095D1 (de) | Verfahren und Vorrichtung zur Datenwiedergabe | |
DE69738356D1 (de) | Vorrichtung und Verfahren zur Datenaufzeichnung/-wiedergabe | |
DE50014710D1 (de) | Vorrichtung und verfahren zur optischen spektroskopie | |
DE69720403D1 (de) | Verfahren und Vorrichtung zur Datenaufzeichnung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |