HK50686A - Disc spindle servo system - Google Patents

Disc spindle servo system

Info

Publication number
HK50686A
HK50686A HK506/86A HK50686A HK50686A HK 50686 A HK50686 A HK 50686A HK 506/86 A HK506/86 A HK 506/86A HK 50686 A HK50686 A HK 50686A HK 50686 A HK50686 A HK 50686A
Authority
HK
Hong Kong
Prior art keywords
servo system
spindle servo
disc spindle
disc
spindle
Prior art date
Application number
HK506/86A
Other languages
English (en)
Inventor
Ludwig Ceshkovsky
Wayne Ray Dakin
Original Assignee
Discovision Ass
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25396978&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK50686(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Discovision Ass filed Critical Discovision Ass
Publication of HK50686A publication Critical patent/HK50686A/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • 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
    • G11B7/09—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
    • 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/0908—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 for focusing only

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Automatic Focus Adjustment (AREA)
  • Rotational Drive Of Disk (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Television Signal Processing For Recording (AREA)
HK506/86A 1978-03-27 1986-07-03 Disc spindle servo system HK50686A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89067078A 1978-03-27 1978-03-27

Publications (1)

Publication Number Publication Date
HK50686A true HK50686A (en) 1986-07-11

Family

ID=25396978

Family Applications (5)

Application Number Title Priority Date Filing Date
HK506/86A HK50686A (en) 1978-03-27 1986-07-03 Disc spindle servo system
HK505/86A HK50586A (en) 1978-03-27 1986-07-03 Signal correction system and method
HK507/86A HK50786A (en) 1978-03-27 1986-07-03 Focus servo system and focussing method
HK181/89A HK18189A (en) 1978-03-27 1989-03-02 Time base error correction for optical disc players
HK180/89A HK18089A (en) 1978-03-27 1989-03-02 Optical tracking method and system

Family Applications After (4)

Application Number Title Priority Date Filing Date
HK505/86A HK50586A (en) 1978-03-27 1986-07-03 Signal correction system and method
HK507/86A HK50786A (en) 1978-03-27 1986-07-03 Focus servo system and focussing method
HK181/89A HK18189A (en) 1978-03-27 1989-03-02 Time base error correction for optical disc players
HK180/89A HK18089A (en) 1978-03-27 1989-03-02 Optical tracking method and system

Country Status (10)

Country Link
EP (6) EP0036222B1 (nl)
JP (13) JPS54128707A (nl)
CA (1) CA1140675A (nl)
DE (2) DE2911859A1 (nl)
DK (1) DK20079A (nl)
HK (5) HK50686A (nl)
MY (3) MY8700045A (nl)
NL (1) NL7900352A (nl)
NO (1) NO151872C (nl)
SE (1) SE7813460L (nl)

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JPS5637831A (en) * 1979-09-03 1981-04-11 Matsushita Electric Ind Co Ltd Control system of reproducing device
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
JPS56119942A (en) * 1980-02-27 1981-09-19 Fujitsu Ltd Track access system optical disc device
JPH0644347B2 (ja) * 1980-11-27 1994-06-08 松下電器産業株式会社 光学的記録再生装置
JPS624906Y2 (nl) * 1981-02-06 1987-02-04
JPS57133525A (en) * 1981-02-07 1982-08-18 Olympus Optical Co Ltd Automatic focusing system of optical information reader
US4414655A (en) * 1981-03-31 1983-11-08 Discovision Associates Scanning beam control system
JPS57186239A (en) * 1981-05-11 1982-11-16 Sony Corp Disc reproducing device
JPS586531A (ja) * 1981-07-01 1983-01-14 Teac Co 記録又は再生装置
US4402061A (en) * 1981-10-15 1983-08-30 Burroughs Corporation Preformatted optical media for use in an optical memory system
US4417330A (en) * 1981-10-15 1983-11-22 Burroughs Corporation Optical memory system providing improved focusing control
JPS5875343U (ja) * 1981-11-16 1983-05-21 日本コロムビア株式会社 光デイスク記録再生装置
JPS58100234A (ja) * 1981-12-10 1983-06-14 Teac Co 光学再生装置
JPS58102340A (ja) * 1981-12-11 1983-06-17 Teac Co 光学再生装置
JPS58121137A (ja) * 1982-01-09 1983-07-19 Sony Corp 光学式デイスク再生装置のフオ−カス引込み回路
DE3300951C2 (de) 1982-01-16 1994-10-27 Sony Corp Verfahren und Einrichtung zum schnellen Bewegen einer Abtasteinrichtung eines Informationssignal-Wiedergabegerätes
DE3348470C2 (de) * 1982-01-16 1997-12-18 Sony Corp Einrichtung zum schnellen Bewegen einer Abtasteinrichtung für ein Informationssignal-Wiedergabegerät
US4432083A (en) * 1982-02-17 1984-02-14 Burroughs Corporation Optical memory system having track following
FR2522269A1 (fr) * 1982-02-26 1983-09-02 Pasteur Institut Agents antitumoraux, tels que la daunorubicine, a efficacite amelioree, leur obtention et procede pour augmenter l'efficacite des agents antitumoraux
US4536863A (en) * 1982-04-15 1985-08-20 Discovision Associates Method and apparatus for recovering information from a videodisc
EP0096969B1 (en) * 1982-05-19 1986-12-30 BURROUGHS CORPORATION (a Delaware corporation) Optical memory system having improved positioning and focusing control circuitry
EP0095852A1 (en) * 1982-05-19 1983-12-07 BURROUGHS CORPORATION (a Michigan corporation) Focusing control circuitry for an optical memory system
JPS5928828U (ja) * 1982-08-17 1984-02-22 パイオニア株式会社 情報検出用スポツト光の集束位置移動制御装置
JPS5942649A (ja) * 1982-09-02 1984-03-09 Mitsubishi Electric Corp 光学的サ−ボ装置
FR2591016B1 (fr) * 1982-10-15 1988-10-21 Pioneer Electronic Corp Systeme de commande de l'entrainement d'un disque
JPS59191141A (ja) * 1983-04-14 1984-10-30 Mitsubishi Electric Corp フオ−カスサ−ボ装置
JPS609021U (ja) * 1983-06-24 1985-01-22 日本電気ホームエレクトロニクス株式会社 光デイスクプレ−ヤのレンズ駆動回路
JPS6077023U (ja) * 1983-11-01 1985-05-29 パイオニア株式会社 記録情報読取装置のフオ−カスレンズ移動制御装置
JPS60131640A (ja) * 1983-12-20 1985-07-13 Canon Inc 光デイスク装置のトラツクアクセス方法
JPS60251529A (ja) * 1984-05-25 1985-12-12 Sony Corp 光学式ディスク・プレーヤ
JPS6122444A (ja) * 1984-07-10 1986-01-31 Toshiba Corp 光学式デイスク再生装置
JPS6164621U (nl) * 1984-09-29 1986-05-02
DE3508525A1 (de) * 1985-03-09 1986-09-11 Thomson Brandt Gmbh Fokus-such-einrichtung fuer beruehrungslose abtastung
EP0261916B1 (en) * 1986-09-20 1992-12-16 Pioneer Electronic Corporation Servomechanism for recording disk reproducing system
JP2614482B2 (ja) * 1988-03-11 1997-05-28 三洋電機株式会社 光学式デイスクプレーヤの信号再生回路
JP2642672B2 (ja) * 1988-06-29 1997-08-20 富士通株式会社 光ディスク装置
JP2570915B2 (ja) * 1991-04-12 1997-01-16 株式会社日立製作所 光スポット制御方法
JPH0828076B2 (ja) * 1991-04-15 1996-03-21 松下電器産業株式会社 トラック飛び越し走査装置
DE4211282A1 (de) * 1992-04-03 1993-10-07 Thomson Brandt Gmbh Korrektur statischer Tangentialfehler eines optischen Abtasters
JPH07503571A (ja) * 1992-11-30 1995-04-13 三星電子株式会社 ディスク読み出し回路
TWI263120B (en) * 2001-05-08 2006-10-01 Asml Netherlands Bv Optical exposure method, device manufacturing method and lithographic projection apparatus
JP5651282B2 (ja) 2007-07-03 2015-01-07 Ykk株式会社 バックル
GB2562499B (en) 2017-05-16 2022-03-23 Gen Electric Generating and/or encoding rotational data for a mechanical element over a digital network

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JPS5223310A (en) * 1975-08-18 1977-02-22 Victor Co Of Japan Ltd Data signal optical regeneration system
JPS5824849B2 (ja) * 1975-08-19 1983-05-24 松下電器産業株式会社 キロクサイセイソウチ
JPS5224429A (en) * 1975-08-20 1977-02-23 Matsushita Electric Ind Co Ltd Signal regenerator
NL7509906A (nl) * 1975-08-21 1977-02-23 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
FR2330062A1 (fr) * 1975-10-31 1977-05-27 Thomson Brandt Dispositif de recherche de focalisation et lecteur optique comportant un tel dispositif
JPS5922289B2 (ja) * 1975-11-20 1984-05-25 ソニー株式会社 ジヨウホウケンシユツソウチ
JPS5817975B2 (ja) * 1975-12-10 1983-04-11 萬世工業株式会社 コウガクテキジヨウホウヨミトリソウチニオケル ジドウシヨウテンソウチオクドウスルクドウソウチ
GB1577133A (en) * 1976-03-19 1980-10-22 Rca Corp Video information record and playback apparatus
GB1572346A (en) * 1976-03-19 1980-07-30 Rca Corp Velocity and phase control for a disc recording and reproducing apparatus
US4331976A (en) * 1976-04-08 1982-05-25 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
GB1585547A (en) * 1976-04-08 1981-03-04 Victor Company Of Japan Information signal reproducing system
JPS52153403A (en) * 1976-06-16 1977-12-20 Hitachi Ltd Address record reproduction
JPS5827888B2 (ja) * 1976-06-29 1983-06-13 日本ビクター株式会社 光ビ−ムのフオ−カスサ−ボ方式
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Also Published As

Publication number Publication date
JPS54128707A (en) 1979-10-05
JPS6111968A (ja) 1986-01-20
EP0035288A2 (en) 1981-09-09
JPS61930A (ja) 1986-01-06
EP0035288B1 (en) 1985-09-11
EP0035803B1 (en) 1985-03-06
SE7813460L (sv) 1979-09-28
JPS6111969A (ja) 1986-01-20
JPH0329118A (ja) 1991-02-07
JPH063646B2 (ja) 1994-01-12
EP0035287A2 (en) 1981-09-09
EP0004476B1 (en) 1985-10-30
CA1140675A (en) 1983-02-01
DE2911859C2 (nl) 1988-05-11
EP0035289A2 (en) 1981-09-09
MY8700046A (en) 1987-12-31
JPH0727646B2 (ja) 1995-03-29
JPS6323230A (ja) 1988-01-30
HK18189A (en) 1989-03-10
JP2594412B2 (ja) 1997-03-26
JPH0434208B2 (nl) 1992-06-05
JPH033289B2 (nl) 1991-01-18
NO151872C (no) 1985-06-19
JPH03162723A (ja) 1991-07-12
NL7900352A (nl) 1979-10-01
EP0035803A3 (en) 1982-02-24
JP2500226B2 (ja) 1996-05-29
DE2967537D1 (en) 1985-12-05
EP0035803A2 (en) 1981-09-16
EP0035288A3 (en) 1982-03-10
HK18089A (en) 1989-03-10
JP2763084B2 (ja) 1998-06-11
JP2617270B2 (ja) 1997-06-04
NO790171L (no) 1979-09-28
MY8700035A (en) 1987-12-31
JPH08147719A (ja) 1996-06-07
EP0035287A3 (en) 1982-04-14
DK20079A (da) 1979-09-28
EP0004476A1 (en) 1979-10-03
JPH076378A (ja) 1995-01-10
NO151872B (no) 1985-03-11
MY8700045A (en) 1987-12-31
DE2911859A1 (de) 1979-10-04
JPH06325375A (ja) 1994-11-25
JPS615692A (ja) 1986-01-11
JPS6259520B2 (nl) 1987-12-11
JPS6367255B2 (nl) 1988-12-23
EP0036222A2 (en) 1981-09-23
EP0035289A3 (en) 1982-03-10
EP0036222B1 (en) 1985-07-10
JPH0795516A (ja) 1995-04-07
JPS6323231A (ja) 1988-01-30
HK50586A (en) 1986-07-11
EP0036222A3 (en) 1982-02-24
HK50786A (en) 1986-07-11
JPS6356612B2 (nl) 1988-11-08
EP0035287B1 (en) 1985-06-19

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