BR8806111A - Servo-sistema de posicionamento,gravador de dados e processo para operar um gravador de disco optico - Google Patents

Servo-sistema de posicionamento,gravador de dados e processo para operar um gravador de disco optico

Info

Publication number: BR8806111A
Authority: BR; Brazil
Prior art keywords: recorder; servo; operate; optical disc; positioning system
Prior art date: 1987-11-23

Application number

BR888806111A

Other languages

English (en)

Inventor

Alan August Fennema

Original Assignee

Ibm

Priority date (The priority date 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 date listed.)

1987-11-23

Filing date

1988-11-22

Publication date

1989-08-15

1988-11-22 Application filed by Ibm filed Critical Ibm

1989-08-15 Publication of BR8806111A publication Critical patent/BR8806111A/pt

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/08—Track changing or selecting during transducing operation
- G11B21/081—Access to indexed tracks or parts of continuous track
- G11B21/083—Access to indexed tracks or parts of continuous track on discs
- 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

BR888806111A 1987-11-23 1988-11-22 Servo-sistema de posicionamento,gravador de dados e processo para operar um gravador de disco optico BR8806111A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/123,675 US4839876A (en)	1987-11-23	1987-11-23	Track seeking using a track following loop

Publications (1)

Publication Number	Publication Date
BR8806111A true BR8806111A (pt)	1989-08-15

Family

ID=22410154

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR888806111A BR8806111A (pt)	1987-11-23	1988-11-22	Servo-sistema de posicionamento,gravador de dados e processo para operar um gravador de disco optico

Country Status (8)

Country	Link
US (1)	US4839876A (pt)
EP (1)	EP0318443B1 (pt)
JP (1)	JPH0610878B2 (pt)
AU (1)	AU610943B2 (pt)
BR (1)	BR8806111A (pt)
CA (1)	CA1309497C (pt)
DE (1)	DE3887736T2 (pt)
MX (1)	MX166554B (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR960010569B1 (ko) *	1987-02-27	1996-08-02	소니 가부시끼가이샤	디스크 기록 장치
JPS6433779A (en) *	1987-07-30	1989-02-03	Toshiba Corp	Track access device
JPH01263978A (ja) *	1988-04-14	1989-10-20	Matsushita Electric Ind Co Ltd	情報トラックの検索装置
US5090002A (en) *	1989-03-07	1992-02-18	International Business Machines Corporation	Positioning systems employing velocity and position control loops with position control loop having an extended range
US5038333A (en) *	1989-05-05	1991-08-06	International Business Machines Corporation	Positioning systems including reliable track crossing detection for high speed relative motions
US5210731A (en) *	1989-06-01	1993-05-11	Kabushiki Kaisha Toshiba	Information processing apparatus with missing pulse detection and correction
US5359581A (en) *	1989-07-04	1994-10-25	Canon Kabushiki Kaisha	Detector for moving velocity of light beam spot
JP2804118B2 (ja) *	1989-10-03	1998-09-24	株式会社東芝	トラッキング制御装置
US5285432A (en) *	1989-10-31	1994-02-08	Kabushiki Kaisha Toshiba	Track jump control circuit
JP2808747B2 (ja) *	1989-11-15	1998-10-08	ソニー株式会社	トラックジャンプ制御回路
US5257251A (en) *	1990-05-25	1993-10-26	International Business Machines Corporation	Single loop servo-positioning systems having means for changing the dynamic range of a position-error signal with speed of the relatively movable members
JP2582951B2 (ja) *	1990-05-25	1997-02-19	インターナショナル・ビジネス・マシーンズ・コーポレイション	可動部材の相対的速度で位置誤差信号のダイナミック・レンジを変更するための手段を有する単ループサーボ位置決めシステム
US5060210A (en) *	1990-09-28	1991-10-22	International Business Machines Corporation	Controlling head seeking speed in disk storage units by limiting displacement of head with respect to its supporting headarm
JPH04254919A (ja) *	1991-02-07	1992-09-10	Hitachi Ltd	トラッキング制御方法及び装置
JPH0536097A (ja) *	1991-08-01	1993-02-12	Hitachi Ltd	記録再生ヘツドの速度検出方式
JPH05205416A (ja) *	1991-10-18	1993-08-13	Internatl Business Mach Corp <Ibm>	媒体欠陥によるトラッキング・エラー信号異常のマスキング装置および方法
DE69220015T2 (de) *	1991-12-27	1997-09-25	Matsushita Electric Ind Co Ltd	Optische Platten Lesegerät
KR940011229B1 (ko) *	1992-07-07	1994-11-29	현대전자산업 주식회사	광디스크 장치의 트래킹 인입 시스팀 및 운용 방법
WO1997018560A1 (en) *	1995-11-15	1997-05-22	Zen Research N.V.	Track detection methods and apparatus for simultaneous electronic monitoring of multiple adjacent tracks of an optical disk
US5793715A (en) *	1995-11-15	1998-08-11	Zen Research N.V.	Methods and apparatus for reducing the access time of an optical drive
US5652746A (en) *	1995-11-15	1997-07-29	Zen Research N.V.	Electronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical disk
US6381210B1 (en)	1995-11-15	2002-04-30	Zen Research (Ireland) Ltd.	Methods and apparatus for concurrently processing data from multiple tracks of an optical storage medium
US5907526A (en) *	1995-11-15	1999-05-25	Zen Research N.V.	Methods and apparatus for simultaneously reading multiple tracks of an optical storage medium
US5793549A (en) *	1995-11-15	1998-08-11	Zen Research N.V.	Methods and apparatus for synchronizing read out of data from multiple tracks of an optical storage device
US5627805A (en) *	1995-11-15	1997-05-06	Zen Research N.V.	Methods and apparatus for high speed optical storage device
US5701283A (en) *	1995-11-15	1997-12-23	Zen Research N.V.	Method and apparatus for high speed optical storage device
JP3875294B2 (ja) *	1995-11-17	2007-01-31	富士通株式会社	ディスク装置
KR19980029035A (ko) *	1996-10-25	1998-07-15	김영환	위상차 검출법에 의한 트랙킹 에러 생성회로
US5936919A (en) *	1997-02-20	1999-08-10	International Business Machines Corporation	System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system
US6137763A (en) *	1998-09-24	2000-10-24	Zen Research N.V.	Method and apparatus for buffering data in a multi-beam optical disk reader
US6721124B2 (en)	2000-05-09	2004-04-13	Maxtor Corporation	Method and apparatus for providing an intelligent settle scheme for a hard disk drive with dual stage actuators
US6587303B1 (en) *	2000-06-09	2003-07-01	International Business Machines Corporation	Servo control of a coarse actuator
US6690534B2 (en)	2000-06-14	2004-02-10	Seagate Technology Llc	Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
US6831804B2 (en)	2000-06-20	2004-12-14	Seagate Technology Llc	Method and apparatus for handling resonance effects in disc drives using active damping

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US32051A (en) *		1861-04-16		Lotjghlin
US2843841A (en) *	1954-09-20	1958-07-15	Internat Telemeter Corp	Information storage system
US3480919A (en) *	1965-11-22	1969-11-25	Ibm	Photographic information storage optical tracking and switching system
US3473164A (en) *	1967-01-16	1969-10-14	Ibm	Margin turnaround technique for photodigital reader
DE2759066A1 (de) *	1977-12-30	1979-07-12	Ibm Deutschland	Einrichtung fuer die regelung der magnetkopfposition waehrend der spurauswahl und der spurfolge des magnetkopfes eines magnetplattenspeichers
USRE32051E (en)	1978-03-27	1985-12-17	Discovision Associates	Tracking system and method for video disc player
US4263627A (en) *	1979-06-18	1981-04-21	Sperry Rand Corporation	Electronic tachometer
JPS6215864Y2 (pt) *	1980-08-04	1987-04-22
US4701898A (en) *	1981-12-21	1987-10-20	Discovision Associates	Method and apparatus for locating a selected track on a record disc
JPS592240A (ja) *	1982-06-25	1984-01-07	Pioneer Electronic Corp	トラツキングサ−ボ装置
JPH0749524Y2 (ja) *	1984-12-17	1995-11-13	ナカミチ株式会社	移動体の移動制御装置
JP2644720B2 (ja) *	1985-02-25	1997-08-25	株式会社日立製作所	トラック引込み方法
JPS6214382A (ja) *	1985-07-11	1987-01-22	Toshiba Corp	トラツク飛び越し制御回路

1987
- 1987-11-23 US US07/123,675 patent/US4839876A/en not_active Expired - Fee Related
1988
- 1988-09-16 CA CA000577711A patent/CA1309497C/en not_active Expired - Lifetime
- 1988-10-14 DE DE3887736T patent/DE3887736T2/de not_active Expired - Fee Related
- 1988-10-14 EP EP88850345A patent/EP0318443B1/en not_active Expired - Lifetime
- 1988-10-18 JP JP63260718A patent/JPH0610878B2/ja not_active Expired - Lifetime
- 1988-11-03 AU AU24683/88A patent/AU610943B2/en not_active Ceased
- 1988-11-21 MX MX013879A patent/MX166554B/es unknown
- 1988-11-22 BR BR888806111A patent/BR8806111A/pt not_active Application Discontinuation

Also Published As

Publication number	Publication date
AU610943B2 (en)	1991-05-30
DE3887736T2 (de)	1994-08-11
EP0318443A2 (en)	1989-05-31
CA1309497C (en)	1992-10-27
AU2468388A (en)	1989-05-25
US4839876A (en)	1989-06-13
EP0318443B1 (en)	1994-02-09
MX166554B (es)	1993-01-18
JPH01151023A (ja)	1989-06-13
JPH0610878B2 (ja)	1994-02-09
DE3887736D1 (de)	1994-03-24
EP0318443A3 (en)	1990-12-12

Publication	Publication Date	Title
BR8806111A (pt)	1989-08-15	Servo-sistema de posicionamento,gravador de dados e processo para operar um gravador de disco optico
IT1211431B (it)	1989-10-26	Disco per registrazione ottica
KR890004281A (ko)	1989-04-21	광 디스크 액세스 시스템
KR880701942A (ko)	1988-11-07	이중 비임 광학 데이타 시스템
DE3769862D1 (de)	1991-06-13	Optischer informationsaufzeichnungstraeger.
DE69031203D1 (de)	1997-09-11	Datenaufzeichnungssystem
DE3784323D1 (de)	1993-04-01	Datenaufzeichnung.
FI893561L (fi)	1990-01-31	Optisk dataregistrering.
DE3856404D1 (de)	2000-05-31	Datenverwaltungssystem
DE3679203D1 (de)	1991-06-20	Betriebsdatenaufzeichnungssystem.
DE3850347D1 (de)	1994-07-28	Leistungsdatenverarbeitungssystem.
DE69028737D1 (de)	1996-11-07	Optisches Informationsaufzeichnungsverfahren
BR8901642A (pt)	1989-11-21	Registro de dados,e sistema de computador digital
DE3776755D1 (de)	1992-03-26	Optisches datenaufzeichnungsgeraet.
DE69027469D1 (de)	1996-07-25	Optisches Aufzeichnungssystem
DE3777461D1 (de)	1992-04-23	Optisches aufzeichnungs-und wiedergabegeraet.
BR9101497A (pt)	1991-12-03	Interface otica e processo para extracao de dados
DE3853982D1 (de)	1995-07-20	Optisches Plattenspeichersystem.
DE3884013D1 (de)	1993-10-21	Optischer Datenaufzeichnungsträger.
DE3771406D1 (de)	1991-08-22	Optisches aufzeichnungsmedium.
DE3777964D1 (de)	1992-05-07	Kartenfoermiger optischer aufzeichnungstraeger.
DE3876717D1 (de)	1993-01-28	Optischer informationsaufzeichnungstraeger.
DE3784389D1 (de)	1993-04-08	Optisches aufzeichnungsmedium.
DE3785572D1 (de)	1993-05-27	Optisches aufzeichnungsmedium.
DE3780866D1 (de)	1992-09-10	Optisches informations-aufzeichnungs- und wiedergabegeraet.

Legal Events

Date	Code	Title	Description
1997-08-05	FF	Decision: intention to grant
1999-06-22	FA11	Dismissal: dismissal - article 38, par. 2 of industrial property law