BR8706154A - Aparelho para gravacao e/ou leitura de informacoes em/de trilhas substancialmente tangenciais sobre um suporte de registro em forma de disco - Google Patents

Aparelho para gravacao e/ou leitura de informacoes em/de trilhas substancialmente tangenciais sobre um suporte de registro em forma de disco

Info

Publication number
BR8706154A
BR8706154A BR8706154A BR8706154A BR8706154A BR 8706154 A BR8706154 A BR 8706154A BR 8706154 A BR8706154 A BR 8706154A BR 8706154 A BR8706154 A BR 8706154A BR 8706154 A BR8706154 A BR 8706154A
Authority
BR
Brazil
Prior art keywords
track
radial
control
light spot
detection means
Prior art date
Application number
BR8706154A
Other languages
English (en)
Inventor
Philip Joseph Leo Mc Gee
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
Publication of BR8706154A publication Critical patent/BR8706154A/pt

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
    • G11B7/0946—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
    • 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
    • G11B7/09—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)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Automatic Disk Changers (AREA)
BR8706154A 1986-11-17 1987-11-16 Aparelho para gravacao e/ou leitura de informacoes em/de trilhas substancialmente tangenciais sobre um suporte de registro em forma de disco BR8706154A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8602911A NL8602911A (nl) 1986-11-17 1986-11-17 Inrichting voor het inschrijven en/of uitlezen van informatie in respektievelijk uit een schijfvormige registratiedrager.

Publications (1)

Publication Number Publication Date
BR8706154A true BR8706154A (pt) 1988-06-21

Family

ID=19848845

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8706154A BR8706154A (pt) 1986-11-17 1987-11-16 Aparelho para gravacao e/ou leitura de informacoes em/de trilhas substancialmente tangenciais sobre um suporte de registro em forma de disco

Country Status (14)

Country Link
US (1) US4843602A (pt)
EP (1) EP0268321B1 (pt)
JP (1) JPS63148434A (pt)
KR (1) KR880006665A (pt)
CN (1) CN1009775B (pt)
AT (1) ATE73950T1 (pt)
AU (1) AU611611B2 (pt)
BR (1) BR8706154A (pt)
CA (1) CA1308192C (pt)
CZ (1) CZ825287A3 (pt)
DE (1) DE3777542D1 (pt)
DK (1) DK596387A (pt)
MX (1) MX160215A (pt)
NL (1) NL8602911A (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802435A (nl) * 1988-10-05 1990-05-01 Philips Nv Inrichting voor het aftasten van een registratiedrager, alsmede een regelschakeling voor toepassing in een dergelijke inrichting.
JPH0354737A (ja) * 1989-07-24 1991-03-08 Sony Corp 光学記録および／または再生装置
US5644560A (en) * 1991-12-26 1997-07-01 Sony Corporation Three-beam detecting system phase difference detector which eliminates phase difference error
WO2002005272A1 (en) * 2000-06-23 2002-01-17 Koninklijke Philips Electronics N.V. Device for recording and/or reproducing an optical record carrier
CN1864210A (zh) * 2002-08-28 2006-11-15 皇家飞利浦电子股份有限公司 轨道跳跃单元
WO2005081235A1 (en) * 2004-01-26 2005-09-01 Koninklijke Philips Electronics N.V. Anti-shock optical recording and reproducing device
JP4972602B2 (ja) * 2008-04-10 2012-07-11 株式会社日立製作所 光信号検出回路及びそれを用いた情報再生装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037252A (en) * 1973-11-10 1977-07-19 U.S. Philips Corporation Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking
JPS5371808A (en) * 1976-12-08 1978-06-26 Toshiba Corp Optical information reader
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
NL8200208A (nl) * 1982-01-21 1983-08-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.
US4530079A (en) * 1983-03-23 1985-07-16 Xerox Corporation Track following system for optical disc drive
JPS6074129A (ja) * 1983-09-30 1985-04-26 Sony Corp 光学式デイスクのトラツキングサ−ボ回路
JPS60119641A (ja) * 1983-12-01 1985-06-27 Pioneer Electronic Corp トラッキングエラ−信号発生装置

Also Published As

Publication number Publication date
CA1308192C (en) 1992-09-29
JPS63148434A (ja) 1988-06-21
MX160215A (es) 1990-01-04
CZ825287A3 (en) 1993-03-17
CN87107886A (zh) 1988-06-01
AU8123487A (en) 1988-05-19
EP0268321B1 (en) 1992-03-18
DK596387D0 (da) 1987-11-13
AU611611B2 (en) 1991-06-13
EP0268321A1 (en) 1988-05-25
ATE73950T1 (de) 1992-04-15
KR880006665A (ko) 1988-07-23
US4843602A (en) 1989-06-27
CN1009775B (zh) 1990-09-26
DE3777542D1 (de) 1992-04-23
DK596387A (da) 1988-05-18
NL8602911A (nl) 1988-06-16

Similar Documents

Publication Publication Date Title
GB2166583A (en) Optical information recording and reproducing apparatus
EP0874356A3 (en) Optical disc discriminating system
ES2040978T3 (es) Aparato para explorar opticamente un plano de informacion.
YU47475B (sh) Optički čitljiv nosač zapisa upisljive vrste, aparat za proizvodnju takvog nosača zapisa i aparat za zapisivanje informacije na takav nosač zapisa i odnosno ili za očitavanje sa njega
DK155256C (da) Sporfoelgesystem med en optisk aftaster til et audio- eller videopladegengiveapparat
US5105413A (en) Read-after-write optical recording device having a single radiation source and employing write modulation of such source
MY105948A (en) Optical recording and/or reproducing apparatus.
EP0285661A4 (en) POSITION DETECTOR OF THE OPTICAL FOCUS OF AN OPTICAL DATA STORAGE / READING DEVICE.
MY104267A (en) Optical pick-up devices
BR8706154A (pt) Aparelho para gravacao e/ou leitura de informacoes em/de trilhas substancialmente tangenciais sobre um suporte de registro em forma de disco
KR870009348A (ko) 광학식 기록장치
US4578786A (en) Track pitch calibration system for use in optical storage devices
US4571714A (en) Read beam position calibration
KR890005673A (ko) 광학 스캐닝 장치의 트래킹 제어회로
EP1143428A3 (en) Tracking servo apparatus of optical information recording and reproducing apparatus
US4888753A (en) Information recording medium capable of accurately detecting the recording and reproduction starting positions and an information recording-reproducing method and apparatus therefor
HK33396A (en) Track control system for positioning a light beam
BR8900271A (pt) Portadora de registro oticamente legivel do tipo que pode ser inscrito,e aparelho de leitura otica
JP2664386B2 (ja) 光学的情報記録再生装置
SU1327168A2 (ru) Устройство слежени за информационной дорожкой
WO1984004965A1 (en) Amplitude modulated coarse position error signal generation in an optical disk storage system employing coarse servo tracks
JPH0778897B2 (ja) 光学式情報記録再生装置
JPS60132620U (ja) 光学記録再生装置のビ−ム位置調整装置
JPS6213749B2 (pt)
JPS632219U (pt)

Legal Events

Date Code Title Description
KD Notifcation of receipt (letter patent)
FA4 Application deemed withdrawn (art. 21(1))