ES2039416T3 - Aparato para registrar y leer un disco optico, que tiene una desviacion reducida en su senal de error de seguimiento. - Google Patents

Aparato para registrar y leer un disco optico, que tiene una desviacion reducida en su senal de error de seguimiento.

Info

Publication number
ES2039416T3
ES2039416T3 ES198787117909T ES87117909T ES2039416T3 ES 2039416 T3 ES2039416 T3 ES 2039416T3 ES 198787117909 T ES198787117909 T ES 198787117909T ES 87117909 T ES87117909 T ES 87117909T ES 2039416 T3 ES2039416 T3 ES 2039416T3
Authority
ES
Spain
Prior art keywords
error
tracking
signal
holes
deviation
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES198787117909T
Other languages
English (en)
Inventor
Shigeru Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of ES2039416T3 publication Critical patent/ES2039416T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/09—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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
    • G11B7/09—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
    • G11B7/0901—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 track following only

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

UNA SEÑAL RASTREADORA DE ERROR DE TIPO CONTRAFASE PRODUCIDA POR LA LUZ REFLEJADA DESDE AGUJEROS EN AREA ID (11) DE UN DISCO OPTICO (1) QUE ESTA TERMINADO Y MOSTRADO POR UN PERIODO MIENTRAS LA MANCHA (SP) EXPLORA LOS AGUJEROS (ID), Y ES SOSTENIDO POR CADA SECTOR, QUE ES POR TANTO NOMBRADO COMO UNA PRIMERA SEÑAL DE RASTREO DE ERROR MOSTRADA (STE). LA SEÑAL DE RASTREO DE ERROR ES TAMBIEN MOSTRADA MIENTRAS LA LUZ ES EXPLORADA SOBRE UNA ZONA VACIA QUE NO TIENEN HUECOS EN UN AREA DE DATOS, POR LO QUE ES NOMBRADA COMO UNA SEGUNDA SEÑAL DE RASTREO DE ERROR MOSTRADA. ESTE AREA VACIA PARA SER MOSTRADA ESTA LOCALIZADA BIEN ANTES O DEPUES DE UNA SECUENCIA DE DATOS BITS EN CADA SECTOR. LA PRIMERA SEÑAL DE RASTREO DE ERROR MOSTRADA (STE) ES MAS PEQUEÑA QUE LA SEGUNDA, A CAUSA DE QUE EL COMPONENTE AC DE ELLA ESTA PRODUCIDO POR LOS HUECOS. ADEMAS CUANDO UNA DESCENTRACION DEL RASTREO EXISTENTE, A TRAVES DE LA SEÑAL DE RASTREO DE ERROR ES CASI CERO POR EL SERVO CONTROL, LA PRIMERA SEÑAL DE RASTREO DE ERROR MOSTRADA NO ES CERO. POR LO TANTO, LA DIFERENCIA DE DOS SEÑALES DE RASTREO DE ERROR INDICAN LA CANTIDAD DE DESVIO. LA SEÑAL DE DESVIO (STO) PUEDE SER CONTROLADA VISUALMENTE (83) POR AJUSTE DEL DESVIO DEL APARATO, O PUEDE SER RETROALIMENTADA POR SERVO RASTREO. LA INVENCION PUEDE SER APLICADA A UN FORMATO DE DISCO QUE NO TIENE MARCA DE CRISTAL. EL CIRCUITO DE LA INVENCION PUEDE SER SIMPLE Y BARATO, A CAUSA DE LA BAJA FRECUENCIA QUE DEBE SER EXTRAIDA DE ALLI.
ES198787117909T 1986-12-03 1987-12-03 Aparato para registrar y leer un disco optico, que tiene una desviacion reducida en su senal de error de seguimiento. Expired - Lifetime ES2039416T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61289549A JPS63142533A (ja) 1986-12-03 1986-12-03 光学的記録再生装置

Publications (1)

Publication Number Publication Date
ES2039416T3 true ES2039416T3 (es) 1993-10-01

Family

ID=17744681

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198787117909T Expired - Lifetime ES2039416T3 (es) 1986-12-03 1987-12-03 Aparato para registrar y leer un disco optico, que tiene una desviacion reducida en su senal de error de seguimiento.

Country Status (7)

Country Link
US (1) US4855983A (es)
EP (1) EP0270118B1 (es)
JP (1) JPS63142533A (es)
KR (1) KR910003459B1 (es)
CA (1) CA1294042C (es)
DE (1) DE3784644T2 (es)
ES (1) ES2039416T3 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2642672B2 (ja) * 1988-06-29 1997-08-20 富士通株式会社 光ディスク装置
DE3824039A1 (de) * 1988-07-15 1990-01-18 Thomson Brandt Gmbh Verfahren und schaltungsanordnung zur kompensation von offset-spannungen in einem fokus- und/oder spurregelkreis
US5272686A (en) * 1988-11-14 1993-12-21 Ricoh Company, Ltd. Servo signal generator for optical disk driving apparatus
US5218589A (en) * 1989-04-24 1993-06-08 Ricoh Company, Ltd. Defect detecting method
JPH06282849A (ja) * 1993-01-29 1994-10-07 Sony Corp 光記録媒体、光記録媒体の記録再生装置及び再生装置
US5623467A (en) * 1993-09-27 1997-04-22 Matsushita Electric Industrial Co., Ltd. Data recording apparatus for recording data in sector units
DE9315048U1 (de) * 1993-10-05 1995-02-09 Merit-Elektrik GmbH, 51643 Gummersbach Zündanlasserschalter für Kraftfahrzeuge mit einer Aufnahme für eine Zusatzeinrichtung
JPH08329492A (ja) * 1995-05-30 1996-12-13 Nippon Conlux Co Ltd 光学的記録媒体に対するトラッキング方法および装置
US5892631A (en) * 1995-09-08 1999-04-06 Seagate Technology, Inc. Method and an arrangement for detecting state transitions in a read signal during a bit cell timing window
JP3846925B2 (ja) * 1995-12-22 2006-11-15 パイオニア株式会社 トラッキングエラー信号の波形制御装置
JPH1049892A (ja) * 1996-08-02 1998-02-20 Pioneer Electron Corp 移動サーボ制御装置
DE19748188A1 (de) * 1997-10-31 1999-05-06 Thomson Brandt Gmbh Gerät zum Lesen oder Beschreiben optischer Aufzeichnungsträger
EP0936602B1 (en) * 1998-02-13 2006-09-20 Yamaha Corporation Optical disk recording technique capable of forming pits accurately centered on track and servo-balance adjusting technique for optical disk recording
TW412738B (en) * 1998-03-09 2000-11-21 Koninkl Philips Electronics Nv Optical read/write apparatus
KR100371592B1 (ko) * 2000-03-09 2003-02-14 주식회사 씨엔에스 광디스크의 트래킹 에러를 검출하기 위한 서보장치
US6452879B1 (en) * 2000-09-29 2002-09-17 Fujitsu Limited Optical storage apparatus
KR20040031043A (ko) * 2001-09-06 2004-04-09 코닌클리케 필립스 일렉트로닉스 엔.브이. 최적전력제어를 실행하는 방법 및 장치
JP4019280B2 (ja) * 2003-10-30 2007-12-12 ソニー株式会社 光ディスク装置
US8320230B2 (en) * 2007-05-17 2012-11-27 Mediatek Inc. Processing circuits and methods for optical data

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919250A (ja) * 1982-07-21 1984-01-31 Hitachi Ltd 情報の記録再生装置
JPH0680535B2 (ja) * 1982-08-27 1994-10-12 株式会社日立製作所 情報の記録再生方法
JPS5992443A (ja) * 1982-11-17 1984-05-28 Toshiba Corp 光学式ピツクアツプの分割センサ位置決め方法
JP2642615B2 (ja) * 1984-05-25 1997-08-20 三洋電機株式会社 ４分割センサの取付位置調整方法
JPS618745A (ja) * 1984-06-20 1986-01-16 Mitsubishi Electric Corp 光学式情報再生装置
JPS6113447A (ja) * 1984-06-29 1986-01-21 Mitsubishi Electric Corp トラツキング誤差検出装置
US4748609A (en) * 1985-03-29 1988-05-31 Hitachi, Ltd. Method and apparatus for composite tracking servo system with track offset correction and rotary optical disc having at least one correction mark for correcting track offset
DE3618720A1 (de) * 1985-06-05 1986-12-11 Hitachi, Ltd., Tokio/Tokyo Verfahren und vorrichtung zur spurnachfuehrung bei bildplatten
NL193159C (nl) * 1985-06-19 1998-12-04 Hitachi Ltd Voorgevormde registratiedrager voor het daarin met behulp van een lichtvlek schrijven van informatie.
JP2888484B2 (ja) * 1985-07-30 1999-05-10 オプテイカル ストレツジ インターナシヨナル−ユーエス 記録キャリア及び光データ読み書き装置
JPS6278732A (ja) * 1985-10-01 1987-04-11 Olympus Optical Co Ltd 光学的情報記録再生装置

Also Published As

Publication number Publication date
JPS63142533A (ja) 1988-06-14
CA1294042C (en) 1992-01-07
DE3784644D1 (de) 1993-04-15
DE3784644T2 (de) 1993-10-07
KR880008254A (ko) 1988-08-30
EP0270118A2 (en) 1988-06-08
JPH0546621B2 (es) 1993-07-14
KR910003459B1 (ko) 1991-05-31
EP0270118B1 (en) 1993-03-10
US4855983A (en) 1989-08-08
EP0270118A3 (en) 1989-11-29

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