ATE14639T1 - Spurfuehrungssystem fuer ein optisches speichermedium. - Google Patents
Spurfuehrungssystem fuer ein optisches speichermedium.Info
- Publication number
- ATE14639T1 ATE14639T1 AT82301609T AT82301609T ATE14639T1 AT E14639 T1 ATE14639 T1 AT E14639T1 AT 82301609 T AT82301609 T AT 82301609T AT 82301609 T AT82301609 T AT 82301609T AT E14639 T1 ATE14639 T1 AT E14639T1
- Authority
- AT
- Austria
- Prior art keywords
- tracking
- error signal
- track
- control signals
- pair
- 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
- G11B7/09—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
Landscapes
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/249,549 US4406000A (en) | 1981-03-31 | 1981-03-31 | Tracking system for optical record medium |
EP82301609A EP0062465B1 (de) | 1981-03-31 | 1982-03-26 | Spurführungssystem für ein optisches Speichermedium |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE14639T1 true ATE14639T1 (de) | 1985-08-15 |
Family
ID=22943973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT82301609T ATE14639T1 (de) | 1981-03-31 | 1982-03-26 | Spurfuehrungssystem fuer ein optisches speichermedium. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4406000A (de) |
EP (1) | EP0062465B1 (de) |
JP (1) | JPS57176546A (de) |
AT (1) | ATE14639T1 (de) |
DE (1) | DE3265008D1 (de) |
HK (1) | HK51786A (de) |
MY (1) | MY8700039A (de) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5810275U (ja) * | 1981-07-15 | 1983-01-22 | パイオニア株式会社 | 情報記録領域の検出装置 |
JPS5814332A (ja) * | 1981-07-16 | 1983-01-27 | Mitsubishi Electric Corp | 光学式情報再生装置 |
JPS58189842A (ja) * | 1982-04-30 | 1983-11-05 | Toshiba Corp | 光学式デジタルデイスクプレ−ヤ装置 |
US4518856A (en) * | 1982-09-14 | 1985-05-21 | Sheltered Workshop For The Disabled, Inc. | Line sensing method and apparatus |
US4587644A (en) * | 1982-11-11 | 1986-05-06 | Sony Corporation | Tracking servocontrol circuits for reducing gain to avoid tracking defect in an optical reproducing apparatus |
JPS59145726U (ja) * | 1983-03-16 | 1984-09-28 | パイオニア株式会社 | 情報読取装置におけるサ−ボ装置 |
JPS6074129A (ja) * | 1983-09-30 | 1985-04-26 | Sony Corp | 光学式デイスクのトラツキングサ−ボ回路 |
JPS60171638A (ja) * | 1984-02-16 | 1985-09-05 | Matsushita Electric Ind Co Ltd | 情報再生装置 |
DE3572070D1 (en) * | 1984-12-19 | 1989-09-07 | Toshiba Kk | Tracking control system for optical record disc information reproducing apparatus |
DE3503983A1 (de) * | 1985-02-06 | 1986-08-07 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Fokus-regelung fuer ein geraet fuer plattenfoermige, rotierende informationstraeger |
US4740940A (en) * | 1985-03-11 | 1988-04-26 | Matsushita Electric Industrial Co., Ltd. | Optical information read apparatus |
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 |
US4764860A (en) * | 1985-06-26 | 1988-08-16 | Nippon Gakki Seizo Kabushiki Kaisha | Servo circuit for an information recording and/or reproducing apparatus |
US4959823A (en) * | 1985-07-30 | 1990-09-25 | Laser Magnetic Storage International Company | Tracking and seeking system for use with an optical record carrier having a wobbled track format |
ATE84631T1 (de) * | 1985-07-30 | 1993-01-15 | Philips Nv | Generatorkreis fuer spursignal und aufzeichnungstraeger dafuer. |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
US4879708A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using wobbled pits |
US5161243A (en) * | 1986-01-21 | 1992-11-03 | Matsushita Electric Industrial Co., Ltd. | Tracking system for an optical recording/reproducing apparatus having a plurality of light spots |
US4878211A (en) * | 1986-05-26 | 1989-10-31 | Pioneer Electronic Corporation | Method and apparatus for correcting the loop gain of a servo loop in accordance with measurements during open-loop operation |
JPS63213126A (ja) * | 1987-02-27 | 1988-09-06 | Nec Corp | 光デイスク装置 |
JPH0719385B2 (ja) * | 1987-04-24 | 1995-03-06 | 株式会社日立製作所 | 光学的記録再生装置 |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
JPH087960B2 (ja) * | 1988-09-19 | 1996-01-29 | パイオニア株式会社 | ディスクプレーヤのサーボ装置 |
GB8906353D0 (en) * | 1989-03-20 | 1989-05-04 | Dewar Productions Inc | Semi-timing optic lathe |
US5038333A (en) * | 1989-05-05 | 1991-08-06 | International Business Machines Corporation | Positioning systems including reliable track crossing detection for high speed relative motions |
US6141300A (en) * | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
US5375107A (en) * | 1989-09-30 | 1994-12-20 | Deutsche Thomson-Brandt Gmbh | Track error control signal generation apparatus as for a disc player |
US5808980A (en) * | 1991-02-15 | 1998-09-15 | Discovision Associates | Seek actuator for optical recording |
US5677899A (en) | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
US6069857A (en) * | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US5537379A (en) | 1991-05-10 | 1996-07-16 | Discovision Associates | Optical data storage and retrieval system and method |
JP3253153B2 (ja) | 1992-10-20 | 2002-02-04 | キヤノン株式会社 | インクジェットヘッドカートリッジ及び該カートリッジを備えたインクジェット装置 |
US5894468A (en) * | 1994-05-06 | 1999-04-13 | Discovision Associates | Data recovery with differentiation and partial integration stages to eliminate noises and DC offset level |
US5790495A (en) * | 1994-05-06 | 1998-08-04 | Discovision Associates | Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component |
US5748578A (en) * | 1995-01-25 | 1998-05-05 | Discovision Associates | Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
US6091684A (en) * | 1995-01-25 | 2000-07-18 | Discovision Associates | Optical disc system and method for changing the rotational rate of an information storage medium |
US5920539A (en) * | 1995-01-25 | 1999-07-06 | Discovision Associates | Apparatus and method for suppression of electromagnetic emissions having a groove on an external surface for passing an electrical conductor |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
US5719836A (en) | 1995-04-07 | 1998-02-17 | Discovision Associates | Optical seeking method and apparatus generating track count signal from tracking error signal and data signal |
US5978329A (en) * | 1995-06-07 | 1999-11-02 | Discovision Associates | Technique for closed loop servo operation in optical disc tracking control |
ES2112224T1 (es) * | 1995-12-06 | 1998-04-01 | Discovision Ass | Aparato y metodo para control de foco. |
JPH09274723A (ja) * | 1996-01-17 | 1997-10-21 | Nikon Corp | 情報再生方法および情報再生装置 |
US5689485A (en) | 1996-04-01 | 1997-11-18 | Discovision Associates | Tracking control apparatus and method |
US6385736B1 (en) * | 1997-12-23 | 2002-05-07 | Lg Electronics, Inc. | Method and apparatus for managing defect areas of recording medium using sector number comparison techniques |
KR100429179B1 (ko) * | 1998-07-01 | 2004-06-16 | 엘지전자 주식회사 | 광기록매체의결함영역관리장치및그방법 |
EP1365404A2 (de) | 1998-07-28 | 2003-11-26 | Lg Electronics Inc. | Verfahren und Vorrichtung zur Datenaufzeichnung auf ein optisches Aufzeichnungsmedium |
KR100407931B1 (ko) * | 1998-07-29 | 2004-03-30 | 엘지전자 주식회사 | 실시간기록/재생시의파일관리방법및실시간데이터기록방법및그광기록/재생매체 |
CN1328725C (zh) * | 1999-07-15 | 2007-07-25 | 皇家菲利浦电子有限公司 | 扫描记录盘发现缺陷的方法和在盘形记录媒体上记录信息的记录设备 |
JP3808683B2 (ja) | 2000-03-01 | 2006-08-16 | 三菱電機株式会社 | 光ディスク装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474418A (en) * | 1967-06-19 | 1969-10-21 | Ibm | Data tracking system |
US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
FR2396379A1 (fr) * | 1977-07-01 | 1979-01-26 | Thomson Brandt | Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations |
NL7808638A (nl) * | 1978-08-22 | 1980-02-26 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige re- gistratiedrager. |
JPS6040093B2 (ja) * | 1978-09-09 | 1985-09-09 | パイオニアビデオ株式会社 | トラッキングサ−ボ引込装置 |
JPS5538686A (en) * | 1978-09-13 | 1980-03-18 | Pioneer Video Corp | Tracking controller of optical information reader |
US4271334A (en) * | 1979-04-06 | 1981-06-02 | Discovision Associates | Apparatus for correcting for temperature-induced tracking errors in a system for recovering information from a recording disc |
JPS6048809B2 (ja) * | 1979-10-16 | 1985-10-29 | パイオニアビデオ株式会社 | 情報読取装置におけるトラッキングサ−ボ引込装置 |
-
1981
- 1981-03-31 US US06/249,549 patent/US4406000A/en not_active Expired - Lifetime
-
1982
- 1982-03-26 EP EP82301609A patent/EP0062465B1/de not_active Expired
- 1982-03-26 DE DE8282301609T patent/DE3265008D1/de not_active Expired
- 1982-03-26 AT AT82301609T patent/ATE14639T1/de not_active IP Right Cessation
- 1982-03-31 JP JP57053615A patent/JPS57176546A/ja active Pending
-
1986
- 1986-07-03 HK HK517/86A patent/HK51786A/xx not_active IP Right Cessation
-
1987
- 1987-12-30 MY MY39/87A patent/MY8700039A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE3265008D1 (en) | 1985-09-05 |
HK51786A (en) | 1986-07-11 |
EP0062465B1 (de) | 1985-07-31 |
EP0062465A1 (de) | 1982-10-13 |
JPS57176546A (en) | 1982-10-29 |
US4406000A (en) | 1983-09-20 |
MY8700039A (en) | 1987-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
EELA | Cancelled due to lapse of time |