NL8802435A - Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting. - Google Patents

Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting. Download PDF

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Publication number
NL8802435A
NL8802435A NL8802435A NL8802435A NL8802435A NL 8802435 A NL8802435 A NL 8802435A NL 8802435 A NL8802435 A NL 8802435A NL 8802435 A NL8802435 A NL 8802435A NL 8802435 A NL8802435 A NL 8802435A
Authority
NL
Netherlands
Prior art keywords
signal
speed
track
scanning
error signal
Prior art date
Application number
NL8802435A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL8802435A priority Critical patent/NL8802435A/nl
Priority to US07/316,396 priority patent/US5036506A/en
Priority to AT89202446T priority patent/ATE107072T1/de
Priority to EP89202446A priority patent/EP0362938B1/fr
Priority to DE68915922T priority patent/DE68915922T2/de
Priority to JP1255095A priority patent/JP2759686B2/ja
Priority to CN89107671A priority patent/CN1017571B/zh
Priority to KR1019890014195A priority patent/KR0173448B1/ko
Publication of NL8802435A publication Critical patent/NL8802435A/nl
Priority to HK44896A priority patent/HK44896A/xx

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
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • 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
    • G11B7/085—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
    • 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
    • G11B7/0946—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 operation during external perturbations not related to the carrier or servo beam, e.g. vibration

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Recording Measured Values (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Control Of Position Or Direction (AREA)
NL8802435A 1988-10-05 1988-10-05 Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting. NL8802435A (nl)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL8802435A NL8802435A (nl) 1988-10-05 1988-10-05 Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.
US07/316,396 US5036506A (en) 1988-10-05 1989-02-27 Record carrier scanning apparatus with feedback control system for controlling scanning point position and velocity
AT89202446T ATE107072T1 (de) 1988-10-05 1989-09-29 Anordnung zum abtasten eines aufzeichnungsträgers sowie regelschaltung zum anwenden in einer derartigen anordnung.
EP89202446A EP0362938B1 (fr) 1988-10-05 1989-09-29 Dispositif d'exploration d'un support d'enregistrement et circuit de commande destiné à être utilisé dans un tel dispositif
DE68915922T DE68915922T2 (de) 1988-10-05 1989-09-29 Anordnung zum Abtasten eines Aufzeichnungsträgers sowie Regelschaltung zum Anwenden in einer derartigen Anordnung.
JP1255095A JP2759686B2 (ja) 1988-10-05 1989-09-29 記録担体を走査する装置
CN89107671A CN1017571B (zh) 1988-10-05 1989-09-30 记录载体扫描设备及其控制电路
KR1019890014195A KR0173448B1 (ko) 1988-10-05 1989-10-04 기록 캐리어 주사 장치
HK44896A HK44896A (en) 1988-10-05 1996-03-14 Device for scanning a record carrier and control circuit for use in such a device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8802435A NL8802435A (nl) 1988-10-05 1988-10-05 Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.
NL8802435 1988-10-05

Publications (1)

Publication Number Publication Date
NL8802435A true NL8802435A (nl) 1990-05-01

Family

ID=19852995

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8802435A NL8802435A (nl) 1988-10-05 1988-10-05 Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.

Country Status (9)

Country Link
US (1) US5036506A (fr)
EP (1) EP0362938B1 (fr)
JP (1) JP2759686B2 (fr)
KR (1) KR0173448B1 (fr)
CN (1) CN1017571B (fr)
AT (1) ATE107072T1 (fr)
DE (1) DE68915922T2 (fr)
HK (1) HK44896A (fr)
NL (1) NL8802435A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
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
JP2804118B2 (ja) * 1989-10-03 1998-09-24 株式会社東芝 トラッキング制御装置
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
JPH04123372A (ja) * 1990-09-13 1992-04-23 Sony Corp シーク制御回路
AU8739091A (en) * 1990-09-18 1992-04-15 Thomas James Frederick Digital servo control system for use in disk drives
JPH04137275A (ja) * 1990-09-28 1992-05-12 Toshiba Corp ピックアップの速度検出装置
US5426545A (en) * 1991-05-09 1995-06-20 Sidman; Michael D. Active disturbance compensation system for disk drives
DE69323397T2 (de) * 1992-11-20 1999-08-26 Koninklijke Philips Electronics N.V. Abtastvorrichtung mit einer Zweistufensteuerung zum Positionieren eines Abtastpunktes
EP0599392B1 (fr) * 1992-11-20 1999-02-03 Koninklijke Philips Electronics N.V. Dispositif de balayage à contrÔleur à deux étages pour positionner un point de balayage
US5978329A (en) 1995-06-07 1999-11-02 Discovision Associates Technique for closed loop servo operation in optical disc tracking control
CN1077715C (zh) 1995-12-06 2002-01-09 迪维安公司 聚焦控制的装置和方法
US5689485A (en) 1996-04-01 1997-11-18 Discovision Associates Tracking control apparatus and method
KR100223633B1 (ko) * 1996-12-31 1999-10-15 윤종용 하드 디스크 드라이브에서 헤드속도 측정을 이용한 안정 기록방법
US6088185A (en) * 1998-06-05 2000-07-11 Seagate Technology, Inc. Rotational vibration detection using a velocity sense coil
US6304406B1 (en) 1998-06-05 2001-10-16 Seagate Technology Llc Rotational vibration compensation using a fixed head and a constant frequency pattern
US6222336B1 (en) 1998-06-05 2001-04-24 Seagate Technology Llc Rotational vibration detection using spindle motor velocity sense coils
US6285522B1 (en) 1998-06-05 2001-09-04 Seagate Technology Llc Rotational vibration compensation using a dedicated surface with a constant frequency pattern
KR100356517B1 (ko) * 2000-08-22 2002-10-18 엘지산전 주식회사 엘리베이터의 속도패턴 발생 방법
US20060171264A1 (en) * 2003-07-17 2006-08-03 Yu Zhou Servo system
JP2021149987A (ja) * 2020-03-18 2021-09-27 株式会社東芝 磁気ディスク装置及びサーボライト方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
JPS57176568A (en) * 1981-04-22 1982-10-29 Pioneer Electronic Corp Relative movement controller between pickup and recording track for information reader
JPS6010429A (ja) * 1983-06-30 1985-01-19 Toshiba Corp 光デイスク装置
JPS61977A (ja) * 1984-06-13 1986-01-06 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
US4740939A (en) * 1985-05-22 1988-04-26 Hitachi Ltd. Apparatus for reproducing information recorded on a disk
NL8602911A (nl) * 1986-11-17 1988-06-16 Philips Nv Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager.
JP2696822B2 (ja) * 1987-01-22 1998-01-14 ソニー株式会社 トラツキングサーボ装置

Also Published As

Publication number Publication date
US5036506A (en) 1991-07-30
EP0362938B1 (fr) 1994-06-08
JP2759686B2 (ja) 1998-05-28
ATE107072T1 (de) 1994-06-15
CN1017571B (zh) 1992-07-22
DE68915922D1 (de) 1994-07-14
JPH02148475A (ja) 1990-06-07
DE68915922T2 (de) 1994-12-15
HK44896A (en) 1996-03-22
KR900006930A (ko) 1990-05-09
KR0173448B1 (ko) 1999-04-15
EP0362938A1 (fr) 1990-04-11
CN1041662A (zh) 1990-04-25

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