DE69027275D1 - Spursuchanordnung und Spurfolganordnung - Google Patents
Spursuchanordnung und SpurfolganordnungInfo
- Publication number
- DE69027275D1 DE69027275D1 DE69027275T DE69027275T DE69027275D1 DE 69027275 D1 DE69027275 D1 DE 69027275D1 DE 69027275 T DE69027275 T DE 69027275T DE 69027275 T DE69027275 T DE 69027275T DE 69027275 D1 DE69027275 D1 DE 69027275D1
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- tracking
- track search
- track
- tracking arrangement
- 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
- G11B7/085—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
-
- 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
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
-
- 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
- G11B7/094—Methods and circuits for servo offset compensation
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1268448A JPH03130972A (ja) | 1989-10-16 | 1989-10-16 | トラック検索装置及びトラッキング制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69027275D1 true DE69027275D1 (de) | 1996-07-11 |
DE69027275T2 DE69027275T2 (de) | 1996-10-02 |
Family
ID=17458651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69027275T Expired - Fee Related DE69027275T2 (de) | 1989-10-16 | 1990-10-16 | Spursuchanordnung und Spurfolganordnung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5268883A (de) |
EP (1) | EP0423731B1 (de) |
JP (1) | JPH03130972A (de) |
KR (1) | KR940003546B1 (de) |
DE (1) | DE69027275T2 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0453036A (ja) * | 1990-06-20 | 1992-02-20 | Hitachi Maxell Ltd | 光学情報記録再生装置 |
JP3021029B2 (ja) * | 1990-11-20 | 2000-03-15 | シャープ株式会社 | 光磁気記録媒体の情報アクセス方法 |
US5481510A (en) * | 1992-02-28 | 1996-01-02 | Fujitsu Limited | Seek control system for optical storage apparatus |
EP0782133B1 (de) * | 1992-08-04 | 1998-09-09 | Sony Corporation | Wiedergabegerät |
JPH06162542A (ja) * | 1992-11-24 | 1994-06-10 | Pioneer Electron Corp | 光ディスク装置 |
US5566141A (en) * | 1993-04-13 | 1996-10-15 | Matsushita Electric Industrial Co., Ltd. | Track retrieving method for making a light beam jump and scan from one track to another |
JP3318636B2 (ja) * | 1994-03-31 | 2002-08-26 | ソニー株式会社 | サーボ装置、光ディスク再生装置 |
EP0727774B1 (de) * | 1994-08-31 | 2000-07-26 | Sony Corporation | Optische platte und aufzeichnungs- und/oder wiedergabegerät |
KR0132972B1 (ko) * | 1994-11-28 | 1998-04-18 | 배순훈 | 광자기디스크의 서보제어장치 |
JP2655109B2 (ja) * | 1994-12-15 | 1997-09-17 | 日本電気株式会社 | 光ディスク装置 |
US5841739A (en) * | 1995-03-17 | 1998-11-24 | Sony Corporation | Accessing method and apparatus for use in hybrid optical recording device |
JP3612385B2 (ja) * | 1995-07-07 | 2005-01-19 | 松下電器産業株式会社 | 光ディスク装置 |
JP3550836B2 (ja) * | 1995-10-19 | 2004-08-04 | ソニー株式会社 | 光学装置におけるトラッキングサーボ装置及びトラッキングサーボ方法 |
JPH10124900A (ja) * | 1996-10-16 | 1998-05-15 | Matsushita Electric Ind Co Ltd | トラッキング制御装置及びトラック検索装置 |
WO1999017283A1 (en) * | 1997-09-26 | 1999-04-08 | Daewoo Electronics Co., Ltd. | Method and apparatus for automatically adjusting a focus bias voltage |
EP1269224A1 (de) * | 1999-12-08 | 2003-01-02 | OTM Technologies, Ltd. | Verbesserte bewegungsdetektor und komponenten dafür |
JP3496716B2 (ja) * | 2000-09-19 | 2004-02-16 | 船井電機株式会社 | ディスク読取装置 |
JP2002358666A (ja) * | 2001-05-30 | 2002-12-13 | Fujitsu Ltd | シーク制御方法及び記憶装置 |
TWI253636B (en) * | 2003-11-19 | 2006-04-21 | Mediatek Inc | Apparatus with switching servo gain and offset for optical disk device and method thereof |
EP1589528B1 (de) * | 2004-04-22 | 2007-11-21 | Matsushita Electric Industrial Co., Ltd. | Optisches Plattengerät, Verfahren zum Einstellen der Schleifenverstärkung und Programm zum Einstellen der Schleifenverstärkung |
KR100615696B1 (ko) * | 2005-04-13 | 2006-08-25 | 삼성전자주식회사 | 광픽업장치 및 그 제어방법 |
US20090196133A1 (en) * | 2008-02-04 | 2009-08-06 | Chia-Wei Liang | Signal processing apparatus for optical disc and method thereof |
TW201349235A (zh) * | 2012-05-23 | 2013-12-01 | Hon Hai Prec Ind Co Ltd | 光碟讀寫裝置及其循軌伺服器和循軌方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2325987A1 (fr) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | Dispositif de lecture optique d'un enregistrement |
FR2349191A1 (fr) * | 1976-04-23 | 1977-11-18 | Thomson Brandt | Lecteur optique de disque d'information comportant un dispositif d'acces automatique aux informations |
US4332022A (en) * | 1978-03-27 | 1982-05-25 | Discovision Associates | Tracking system and method for video disc player |
JPS6061925A (ja) * | 1983-09-14 | 1985-04-09 | Ricoh Co Ltd | 光情報記録再生装置 |
US4866688A (en) * | 1985-12-20 | 1989-09-12 | Hitachi, Ltd. | Composite tracking servo system for optical disc apparatus with track offset correction |
DE3750409T2 (de) * | 1986-02-07 | 1995-03-30 | Matsushita Electric Ind Co Ltd | Optische Platte und Plattengerät zum Aufzeichnen oder Wiedergeben von Daten in oder von der Platte. |
JPH073732B2 (ja) * | 1986-04-15 | 1995-01-18 | パイオニア株式会社 | 情報記録デイスク再生装置 |
US4761692A (en) * | 1986-04-15 | 1988-08-02 | Pioneer Electronic Corporation | Method and apparatus for data recording disc playback |
KR910003458B1 (ko) * | 1986-12-02 | 1991-05-31 | 미쓰비시뎅끼 가부시끼가이샤 | 광디스크의 구동장치 |
JPS63167432A (ja) * | 1986-12-27 | 1988-07-11 | Victor Co Of Japan Ltd | サ−ボ信号補正回路 |
JPS648563A (en) * | 1987-06-30 | 1989-01-12 | Toshiba Corp | Track counter |
US4989190A (en) * | 1987-07-20 | 1991-01-29 | Oki Electric Industry Co., Ltd. | Apparatus for seeking a track of an optical disk in which information is recorded |
JPH0254429A (ja) * | 1988-08-19 | 1990-02-23 | Olympus Optical Co Ltd | 光学式記録再生装置 |
JPH02306478A (ja) * | 1989-05-22 | 1990-12-19 | Canon Inc | トラックカウント回路 |
JPH04149824A (ja) * | 1990-10-12 | 1992-05-22 | Pioneer Electron Corp | 光ディスクの情報読取装置 |
-
1989
- 1989-10-16 JP JP1268448A patent/JPH03130972A/ja active Pending
-
1990
- 1990-10-15 KR KR1019900016317A patent/KR940003546B1/ko not_active IP Right Cessation
- 1990-10-16 EP EP90119846A patent/EP0423731B1/de not_active Expired - Lifetime
- 1990-10-16 DE DE69027275T patent/DE69027275T2/de not_active Expired - Fee Related
-
1992
- 1992-09-22 US US07/948,463 patent/US5268883A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0423731A3 (en) | 1993-03-03 |
JPH03130972A (ja) | 1991-06-04 |
KR940003546B1 (ko) | 1994-04-23 |
KR910008660A (ko) | 1991-05-31 |
EP0423731B1 (de) | 1996-06-05 |
EP0423731A2 (de) | 1991-04-24 |
DE69027275T2 (de) | 1996-10-02 |
US5268883A (en) | 1993-12-07 |
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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 |