ATE108937T1 - Optischer plattenantrieb. - Google Patents
Optischer plattenantrieb.Info
- Publication number
- ATE108937T1 ATE108937T1 AT88307646T AT88307646T ATE108937T1 AT E108937 T1 ATE108937 T1 AT E108937T1 AT 88307646 T AT88307646 T AT 88307646T AT 88307646 T AT88307646 T AT 88307646T AT E108937 T1 ATE108937 T1 AT E108937T1
- Authority
- AT
- Austria
- Prior art keywords
- optical pickup
- velocity
- recording track
- target recording
- optical disk
- 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
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus 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
- G11B7/085—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
- G11B7/08529—Methods and circuits to control the velocity of the head as it traverses the tracks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Holo Graphy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62206971A JP2565205B2 (ja) | 1987-08-20 | 1987-08-20 | 光デイスク装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE108937T1 true ATE108937T1 (de) | 1994-08-15 |
Family
ID=16532035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT88307646T ATE108937T1 (de) | 1987-08-20 | 1988-08-18 | Optischer plattenantrieb. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5056072A (de) |
EP (1) | EP0304299B1 (de) |
JP (1) | JP2565205B2 (de) |
KR (1) | KR970008608B1 (de) |
AT (1) | ATE108937T1 (de) |
DE (1) | DE3850718T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5270988A (en) * | 1988-08-08 | 1993-12-14 | Olympus Optical Co., Ltd. | Optical recording and reproducing apparatus making access by multitrack jump |
US5146440A (en) * | 1988-08-29 | 1992-09-08 | Matsushita Electric Industrial Co., Ltd. | Track search apparatus |
JPH02263367A (ja) * | 1989-04-04 | 1990-10-26 | Pioneer Electron Corp | ディスクプレーヤのピックアップ駆動装置 |
US4914725A (en) * | 1989-07-10 | 1990-04-03 | International Business Machines Corporation | Transducer positioning servo mechanisms employing digital and analog circuits |
US5301174A (en) * | 1989-07-14 | 1994-04-05 | Sharp Kabushiki Kaisha | Optical disk recording and reproducing apparatus |
JP2760077B2 (ja) * | 1989-08-29 | 1998-05-28 | ソニー株式会社 | 光ディスクのシーク回路 |
US5182736A (en) * | 1989-10-12 | 1993-01-26 | Fujitsu Limited | Deceleration control system for positioning an optical head in an optical disk unit |
KR950006419B1 (ko) * | 1990-04-16 | 1995-06-15 | 삼성전자주식회사 | 광기록 재생장치의 고속서치방법 |
US5475545A (en) * | 1991-03-28 | 1995-12-12 | Seagate Technology, Inc. | Method for reducing noise during seeks in a hard disk drive |
JP3056967B2 (ja) * | 1995-02-24 | 2000-06-26 | 株式会社朝日コーポレーション | ディスクプレーヤ |
US5666236A (en) * | 1995-08-22 | 1997-09-09 | Iomega Corporation | Velocity control for a disk drive actuator |
KR20010084542A (ko) * | 2000-02-26 | 2001-09-06 | 구자홍 | 광디스크 장치에서의 트랙서치 제어장치 및 방법 |
US6801384B2 (en) * | 2000-09-14 | 2004-10-05 | Samsung Electronics Co., Ltd. | Voltage-constrained sinusoidal seek servo in hard disk drives |
US6744702B2 (en) * | 2000-09-29 | 2004-06-01 | Kabushiki Kaisha Toshiba | Apparatus for accessing recording disk by controlling the coarse and precise actuators |
US7784568B2 (en) * | 2008-09-18 | 2010-08-31 | Freeport-Mcmoran Copper & Gold Inc. | Method and apparatus for controlling tracked vehicles |
US8767343B1 (en) * | 2012-04-24 | 2014-07-01 | Western Digital Technologies, Inc. | Disk drive increasing integrator output range to complete seek operation |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4333117A (en) * | 1980-06-30 | 1982-06-01 | Magnetic Peripherals Inc. | Disc head arm position controller using digital velocity sensing |
KR880000999B1 (ko) * | 1981-11-25 | 1988-06-10 | 미쓰다 가쓰시게 | 광학적 정보 기억장치 |
JPS58153276A (ja) * | 1982-03-05 | 1983-09-12 | Hitachi Ltd | アクセス制御回路 |
US4491776A (en) * | 1982-05-25 | 1985-01-01 | Manhattan Engineering Company, Inc. | Servo operated digital positioning control system |
EP0098076A1 (de) * | 1982-06-14 | 1984-01-11 | Nec Corporation | Strahlzugriffsgerät für eine Vorrichtung mit optischen Scheiben |
US4638230A (en) * | 1982-09-15 | 1987-01-20 | Ampex Corporation | Bang-bang controlled velocity command generator |
JPS6139239A (ja) * | 1984-07-28 | 1986-02-25 | Sony Corp | 光学式デイスクプレ−ヤ |
JPS61267976A (ja) * | 1985-05-22 | 1986-11-27 | Fujitsu Ltd | 飛び移り方式 |
JPS61273776A (ja) * | 1985-05-29 | 1986-12-04 | Nippon Kogaku Kk <Nikon> | 再生サ−ボ装置 |
US4809094A (en) * | 1986-06-11 | 1989-02-28 | Matsushita Electric Industrial Co., Ltd | Method of accessing data recorded on a disk at a high speed |
US4808900A (en) * | 1987-03-02 | 1989-02-28 | Unisys Corp. | Bi-directional difference counter |
JPH0783625B2 (ja) * | 1987-04-03 | 1995-09-06 | 三菱電機株式会社 | 検出ヘツドの速度制御装置 |
JPS63279478A (ja) * | 1987-05-08 | 1988-11-16 | Sharp Corp | アクセス制御方式 |
US4899234A (en) * | 1988-04-04 | 1990-02-06 | Magnetic Peripherals Inc. | Adaptive velocity profile for disk actuator control |
-
1987
- 1987-08-20 JP JP62206971A patent/JP2565205B2/ja not_active Expired - Fee Related
-
1988
- 1988-08-18 DE DE3850718T patent/DE3850718T2/de not_active Expired - Fee Related
- 1988-08-18 AT AT88307646T patent/ATE108937T1/de not_active IP Right Cessation
- 1988-08-18 EP EP88307646A patent/EP0304299B1/de not_active Expired - Lifetime
- 1988-08-19 US US07/234,197 patent/US5056072A/en not_active Expired - Lifetime
- 1988-08-20 KR KR1019880010580A patent/KR970008608B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS6450286A (en) | 1989-02-27 |
KR970008608B1 (ko) | 1997-05-27 |
US5056072A (en) | 1991-10-08 |
DE3850718T2 (de) | 1994-12-08 |
JP2565205B2 (ja) | 1996-12-18 |
DE3850718D1 (de) | 1994-08-25 |
KR890004288A (ko) | 1989-04-21 |
EP0304299A2 (de) | 1989-02-22 |
EP0304299A3 (en) | 1990-09-05 |
EP0304299B1 (de) | 1994-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |