DK0840297T3 - Spordetekteringskredslöb til optisk disketteafspilningsapparat - Google Patents
Spordetekteringskredslöb til optisk disketteafspilningsapparatInfo
- Publication number
- DK0840297T3 DK0840297T3 DK97118836T DK97118836T DK0840297T3 DK 0840297 T3 DK0840297 T3 DK 0840297T3 DK 97118836 T DK97118836 T DK 97118836T DK 97118836 T DK97118836 T DK 97118836T DK 0840297 T3 DK0840297 T3 DK 0840297T3
- Authority
- DK
- Denmark
- Prior art keywords
- playback device
- detection circuits
- track detection
- optical diskette
- diskette
- Prior art date
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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
- G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
-
- 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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
-
- 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
- G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B2020/10916—Seeking data on the record carrier for preparing an access to a specific address
- G11B2020/10925—Seeking data on the record carrier for preparing an access to a specific address involving an inter-layer jump, i.e. changing from one recording layer to another
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2537—Optical discs
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8290692A JPH10134369A (ja) | 1996-10-31 | 1996-10-31 | 光ディスク再生装置のトラック検出回路 |
EP97118836A EP0840297B1 (de) | 1996-10-31 | 1997-10-29 | Spurdetektionsschaltung für optisches Plattenabspielgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
DK0840297T3 true DK0840297T3 (da) | 2005-07-04 |
Family
ID=17759278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK97118836T DK0840297T3 (da) | 1996-10-31 | 1997-10-29 | Spordetekteringskredslöb til optisk disketteafspilningsapparat |
Country Status (8)
Country | Link |
---|---|
US (1) | US5854781A (de) |
EP (1) | EP0840297B1 (de) |
JP (1) | JPH10134369A (de) |
KR (1) | KR100531053B1 (de) |
CN (1) | CN1118801C (de) |
DE (1) | DE69733528T2 (de) |
DK (1) | DK0840297T3 (de) |
TW (1) | TW397975B (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100249224B1 (ko) * | 1996-11-23 | 2000-03-15 | 구자홍 | 미로신호 검출방법 및 장치 |
US6118740A (en) * | 1998-02-13 | 2000-09-12 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for writing closely spaced information tracks |
US6049512A (en) * | 1998-02-13 | 2000-04-11 | International Business Machines Corporation | In a system for creating, reading and writing on rotatable information storage media, an apparatus for two-sided writing |
US6108282A (en) * | 1998-02-13 | 2000-08-22 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for multilayer laser source positioning |
US6088306A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for combined writing and reading operations |
US6232045B1 (en) | 1998-02-13 | 2001-05-15 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for producing a recording blank |
US6222813B1 (en) | 1998-02-13 | 2001-04-24 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for controlling vertical laser alignment |
US6128262A (en) * | 1998-02-13 | 2000-10-03 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for customizing said media with timing information |
US6088308A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a tracking circuit for providing positioning information |
US6097681A (en) * | 1998-02-13 | 2000-08-01 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for determining angular position, θ |
US6097677A (en) * | 1998-02-13 | 2000-08-01 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for combined writing and reading operations |
US6088309A (en) * | 1998-02-13 | 2000-07-11 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, a method for controlling vertical laser alignment |
US6081487A (en) * | 1998-02-13 | 2000-06-27 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for controlling laser positioning |
US6111830A (en) * | 1998-02-13 | 2000-08-29 | International Business Machines Corporation | System for creating, reading and writing on rotatable information storage media, an apparatus for determining linear and/or angular velocity |
DE19824056A1 (de) | 1998-05-29 | 1999-12-02 | Thomson Brandt Gmbh | Gerät zur Wiedergabe oder Aufzeichnung von Daten oder Informationen |
KR100700816B1 (ko) * | 2000-02-12 | 2007-03-27 | 엘지전자 주식회사 | 아날로그/디지털 변환 방법 및 장치 |
JP4475833B2 (ja) * | 2001-03-02 | 2010-06-09 | 日本テキサス・インスツルメンツ株式会社 | ミラー検出信号生成回路 |
JP2003196858A (ja) * | 2001-12-27 | 2003-07-11 | Texas Instr Japan Ltd | トラッキングエラー検出装置 |
KR100512956B1 (ko) | 2003-01-27 | 2005-09-07 | 삼성전자주식회사 | 광기록/재생장치의 결함신호 검출장치 및 그의 결함신호검출방법 |
KR100524996B1 (ko) * | 2003-12-30 | 2005-10-31 | 삼성전자주식회사 | 광 디스크 시스템의 엑츄에이터 코일 손상 방지 장치 및그 방법 |
TWI270853B (en) * | 2004-09-10 | 2007-01-11 | Mediatek Inc | Method and device for determining slicing level of track-crossing signal |
WO2006123603A1 (ja) * | 2005-05-17 | 2006-11-23 | Rohm Co., Ltd. | ミラー信号生成方法、ミラー信号生成回路、およびそれを搭載した光ディスク装置 |
US7706219B2 (en) * | 2006-06-05 | 2010-04-27 | Mediatek Inc. | Signal processing apparatus and method for an optical disc drive |
TWI361427B (en) * | 2007-11-23 | 2012-04-01 | Sunplus Technology Co Ltd | Apparatus and method for detecting a defect of an optical disc |
JP2012002666A (ja) * | 2010-06-17 | 2012-01-05 | Advantest Corp | 試験装置用の電源装置およびそれを用いた試験装置 |
JP2012123870A (ja) | 2010-12-08 | 2012-06-28 | Toshiba Corp | 再生制御用信号生成回路 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984379A (ja) * | 1982-11-08 | 1984-05-16 | Nec Corp | デイスク状記録担体のトラツクアクセス装置 |
US4769613A (en) * | 1985-12-05 | 1988-09-06 | Nec Corporation | Digitalized amplitude detection circuit for analog input signal |
JPH069087B2 (ja) * | 1988-10-06 | 1994-02-02 | キヤノン株式会社 | 光学的情報記録再生装置 |
JPH0721868B2 (ja) * | 1989-08-04 | 1995-03-08 | キヤノン株式会社 | 光情報処理装置 |
JPH04149824A (ja) * | 1990-10-12 | 1992-05-22 | Pioneer Electron Corp | 光ディスクの情報読取装置 |
-
1996
- 1996-10-31 JP JP8290692A patent/JPH10134369A/ja active Pending
-
1997
- 1997-10-29 DE DE69733528T patent/DE69733528T2/de not_active Expired - Lifetime
- 1997-10-29 DK DK97118836T patent/DK0840297T3/da active
- 1997-10-29 EP EP97118836A patent/EP0840297B1/de not_active Expired - Lifetime
- 1997-10-30 KR KR1019970056412A patent/KR100531053B1/ko not_active IP Right Cessation
- 1997-10-30 TW TW086116126A patent/TW397975B/zh not_active IP Right Cessation
- 1997-10-31 CN CN97126081A patent/CN1118801C/zh not_active Expired - Fee Related
- 1997-10-31 US US08/962,053 patent/US5854781A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH10134369A (ja) | 1998-05-22 |
KR19980033329A (ko) | 1998-07-25 |
US5854781A (en) | 1998-12-29 |
EP0840297B1 (de) | 2005-06-15 |
CN1199217A (zh) | 1998-11-18 |
EP0840297A3 (de) | 1999-09-22 |
DE69733528T2 (de) | 2006-05-11 |
EP0840297A2 (de) | 1998-05-06 |
KR100531053B1 (ko) | 2006-02-20 |
CN1118801C (zh) | 2003-08-20 |
TW397975B (en) | 2000-07-11 |
DE69733528D1 (de) | 2005-07-21 |
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