KR890004288A - 광 디스크 장치 - Google Patents
광 디스크 장치 Download PDFInfo
- Publication number
- KR890004288A KR890004288A KR1019880010580A KR880010580A KR890004288A KR 890004288 A KR890004288 A KR 890004288A KR 1019880010580 A KR1019880010580 A KR 1019880010580A KR 880010580 A KR880010580 A KR 880010580A KR 890004288 A KR890004288 A KR 890004288A
- Authority
- KR
- South Korea
- Prior art keywords
- speed
- recording track
- optical pickup
- target recording
- servo loop
- 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
-
- 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
- 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)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 제 1 의 발명의 제 1 의 실시예를 도시하는 접속도. 제 2 도는 그 동작의 설명에 제공하는 특성 곡선도. 제 3 도는 제 1 의 발명의 제 2 의 실시예를 도시하는 접속도.
Claims (2)
- 광헤드를 목표의 기록 트랙에 씨크할때에, 이 광헤드의 이동 속도를 검출하여서 이루어지는 속도 서보루프를 사용하는 광디스크 장치에 있어서, 상기한 목표의 기록 트랙까지의 나머지 트랙수에 의거하여, 상기속도 서보 루프에 속도 목표치를 공급하는 씨크 제어 수단을 구비하는 것을 특징으로 하는 광디스크 장치.
- 광헤드를 목표의 기록 트랙에 씨크함에 있어서, 이 광헤드의 이동 속도를 검출하여서 형성되는 속도 서보 루프를 사용하는 광디스크 장치에 있어서, 상기 목표의 기록 트랙까지의 나머지 트랙수에 의거하여, 상기속도 서보 루프에 속도 목표치를 공급하는 씨크 제어 수단과, 씨크해야할 상기 기록 트랙수의 적을때는, 상기 속도 서보 루프에 대해서 뱅뱅 제어하는 뱅뱅 제어수단을 구비하는 것을 특징으로 하는 광디스크 장치.※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP206971 | 1987-08-20 | ||
JP62206971A JP2565205B2 (ja) | 1987-08-20 | 1987-08-20 | 光デイスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890004288A true KR890004288A (ko) | 1989-04-21 |
KR970008608B1 KR970008608B1 (ko) | 1997-05-27 |
Family
ID=16532035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880010580A KR970008608B1 (ko) | 1987-08-20 | 1988-08-20 | 광디스크 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5056072A (ko) |
EP (1) | EP0304299B1 (ko) |
JP (1) | JP2565205B2 (ko) |
KR (1) | KR970008608B1 (ko) |
AT (1) | ATE108937T1 (ko) |
DE (1) | DE3850718T2 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010084542A (ko) * | 2000-02-26 | 2001-09-06 | 구자홍 | 광디스크 장치에서의 트랙서치 제어장치 및 방법 |
KR100413768B1 (ko) * | 2000-09-14 | 2004-01-03 | 삼성전자주식회사 | 하드 디스크 드라이브에서의 전압 한정된 사인 파형의시크 서보 방법 및 장치 |
Families Citing this family (14)
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 |
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 (en) * | 1982-06-14 | 1984-01-11 | Nec Corporation | Beam access apparatus for optical disc system |
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 AT AT88307646T patent/ATE108937T1/de not_active IP Right Cessation
- 1988-08-18 EP EP88307646A patent/EP0304299B1/en not_active Expired - Lifetime
- 1988-08-18 DE DE3850718T patent/DE3850718T2/de not_active Expired - Fee Related
- 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
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010084542A (ko) * | 2000-02-26 | 2001-09-06 | 구자홍 | 광디스크 장치에서의 트랙서치 제어장치 및 방법 |
KR100413768B1 (ko) * | 2000-09-14 | 2004-01-03 | 삼성전자주식회사 | 하드 디스크 드라이브에서의 전압 한정된 사인 파형의시크 서보 방법 및 장치 |
Also Published As
Publication number | Publication date |
---|---|
EP0304299A2 (en) | 1989-02-22 |
DE3850718D1 (de) | 1994-08-25 |
KR970008608B1 (ko) | 1997-05-27 |
EP0304299A3 (en) | 1990-09-05 |
JP2565205B2 (ja) | 1996-12-18 |
EP0304299B1 (en) | 1994-07-20 |
JPS6450286A (en) | 1989-02-27 |
DE3850718T2 (de) | 1994-12-08 |
ATE108937T1 (de) | 1994-08-15 |
US5056072A (en) | 1991-10-08 |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20030411 Year of fee payment: 7 |
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LAPS | Lapse due to unpaid annual fee |