DE69020756D1 - Aufnahme- und Wiedergabegerät für optische Platte. - Google Patents
Aufnahme- und Wiedergabegerät für optische Platte.Info
- Publication number
- DE69020756D1 DE69020756D1 DE69020756T DE69020756T DE69020756D1 DE 69020756 D1 DE69020756 D1 DE 69020756D1 DE 69020756 T DE69020756 T DE 69020756T DE 69020756 T DE69020756 T DE 69020756T DE 69020756 D1 DE69020756 D1 DE 69020756D1
- Authority
- DE
- Germany
- Prior art keywords
- optical disk
- reproducing apparatus
- disk recording
- recording
- reproducing
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration
-
- 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
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- 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
- G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1050094A JPH02230515A (ja) | 1989-03-03 | 1989-03-03 | 光学式記録再生装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69020756D1 true DE69020756D1 (de) | 1995-08-17 |
DE69020756T2 DE69020756T2 (de) | 1995-12-07 |
Family
ID=12849468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69020756T Expired - Fee Related DE69020756T2 (de) | 1989-03-03 | 1990-03-02 | Aufnahme- und Wiedergabegerät für optische Platte. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5224085A (de) |
EP (1) | EP0385498B1 (de) |
JP (1) | JPH02230515A (de) |
DE (1) | DE69020756T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5333138A (en) * | 1992-03-11 | 1994-07-26 | Ministor Peripherals International Limited | Apparatus and method for preventing data corruption in disk drives from mechanical shock during write operations |
US5270880A (en) * | 1992-04-10 | 1993-12-14 | International Business Machines Corporation | Predictive read-write inhibit decision using fuzzy logic |
JP3264385B2 (ja) * | 1992-09-09 | 2002-03-11 | ソニー株式会社 | 光デイスク記録再生装置 |
KR0160628B1 (ko) * | 1993-06-18 | 1999-02-01 | 김광호 | 레이저 다이오드 구동 방법 및 장치 |
EP0673030A4 (de) * | 1993-10-06 | 1996-02-21 | Nippon Kogaku Kk | Aufzeichnungsvorrichtung für optische platten. |
US5605390A (en) * | 1996-01-25 | 1997-02-25 | Sarif, Inc. | Optical projector |
US5777796A (en) * | 1996-07-25 | 1998-07-07 | Delta America Ltd. | Pentaprism combiner/splitter |
US6049403A (en) * | 1996-07-25 | 2000-04-11 | Delta America Ltd. | V-splitter for optical engine |
US5921665A (en) * | 1996-12-13 | 1999-07-13 | Delta America Ltd. | Projection illumination system for tricolor projectors |
US6625093B1 (en) * | 1999-03-30 | 2003-09-23 | Lg Electronics Inc. | Apparatus and method for reproducing record for optical recording medium |
JP2000298858A (ja) * | 1999-04-15 | 2000-10-24 | Funai Electric Co Ltd | 光ディスク装置の制御方法 |
DE60021960T2 (de) | 1999-06-25 | 2006-03-23 | Samsung Electronics Co., Ltd., Suwon | Verfahren zur Kompensation von Neigung und/oder Defokussierung, und Vorrichtung für dasselbige |
JP4056721B2 (ja) * | 2001-09-12 | 2008-03-05 | 株式会社リコー | 情報記録装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57150144A (en) * | 1981-03-10 | 1982-09-16 | Matsushita Electric Ind Co Ltd | Optical recorder and reproducer |
JPS58189840A (ja) * | 1982-04-30 | 1983-11-05 | Hitachi Ltd | 光学的情報処理装置 |
JPS5965946A (ja) * | 1982-10-06 | 1984-04-14 | Hitachi Ltd | ビデオデイスクプレ−ヤ |
US4759006A (en) * | 1984-03-29 | 1988-07-19 | Matsushita Electric Industrial Co., Ltd. | Abnormal track skipping detection and control arrangement |
JPH0740363B2 (ja) * | 1985-03-20 | 1995-05-01 | 株式会社日立製作所 | 光学的記録再生装置 |
DE3514034A1 (de) * | 1985-04-18 | 1986-10-23 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Automatisches korrektursystem fuer den servokreis eines geraetes mit optischer abtastung eines rotierenden informationstraegers |
JPS62252565A (ja) * | 1986-04-25 | 1987-11-04 | Teac Co | 情報記録媒体の二重記録防止方法 |
JP2559372B2 (ja) * | 1986-07-09 | 1996-12-04 | 株式会社日立製作所 | 光ディスク装置及び光情報記録方法 |
JPS6361423A (ja) * | 1986-09-01 | 1988-03-17 | Seiko Epson Corp | 光デイスク装置 |
KR910005644B1 (ko) * | 1986-09-19 | 1991-08-01 | 가부시키가이샤 도시바 | 디스크재생장치 |
JPS63108559A (ja) * | 1986-10-27 | 1988-05-13 | Olympus Optical Co Ltd | 情報記録再生装置 |
KR960010569B1 (ko) * | 1987-02-27 | 1996-08-02 | 소니 가부시끼가이샤 | 디스크 기록 장치 |
US4982392A (en) * | 1987-07-10 | 1991-01-01 | Ricoh Company, Ltd. | Stabilized optical pick-up device inhibiting the effect of the focus error signal at the start and end of a data region |
JPS6437729A (en) * | 1987-08-04 | 1989-02-08 | Canon Kk | Optical information recording and reproducing device |
JPH077528B2 (ja) * | 1988-01-25 | 1995-01-30 | キヤノン株式会社 | 光学式情報記録装置 |
-
1989
- 1989-03-03 JP JP1050094A patent/JPH02230515A/ja active Pending
-
1990
- 1990-02-02 US US07/474,324 patent/US5224085A/en not_active Expired - Fee Related
- 1990-03-02 EP EP90104100A patent/EP0385498B1/de not_active Expired - Lifetime
- 1990-03-02 DE DE69020756T patent/DE69020756T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0385498A2 (de) | 1990-09-05 |
EP0385498B1 (de) | 1995-07-12 |
DE69020756T2 (de) | 1995-12-07 |
JPH02230515A (ja) | 1990-09-12 |
US5224085A (en) | 1993-06-29 |
EP0385498A3 (de) | 1991-12-27 |
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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 |