WO1996041335A3 - Systeme compact de lecture et de suivi de piste pour enregistrement optique sur bande - Google Patents

Systeme compact de lecture et de suivi de piste pour enregistrement optique sur bande Download PDF

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Publication number
WO1996041335A3
WO1996041335A3 PCT/IB1996/000718 IB9600718W WO9641335A3 WO 1996041335 A3 WO1996041335 A3 WO 1996041335A3 IB 9600718 W IB9600718 W IB 9600718W WO 9641335 A3 WO9641335 A3 WO 9641335A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
read
read beam
modulated
reflected
Prior art date
Application number
PCT/IB1996/000718
Other languages
English (en)
Other versions
WO1996041335A2 (fr
Inventor
Scott M Hamilton
Billy C Frederick
William D Mccoy
James R Boyd
Michael W Montana
Original Assignee
E Systems Inc
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 E Systems Inc filed Critical E Systems Inc
Priority to AU63150/96A priority Critical patent/AU6315096A/en
Publication of WO1996041335A2 publication Critical patent/WO1996041335A2/fr
Publication of WO1996041335A3 publication Critical patent/WO1996041335A3/fr

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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • 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
    • 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

Cette invention concerne un système de lecture et de suivi de piste d'un enregistreur optique sur bande permettant la lecture optique d'un signal de données sur un support d'enregistrement (108) photosensible pendant une fonction de lecture. Un faisceau de lecture a une forme lui permettant d'éclairer, sur le support d'enregistrement, une pluralité de canaux de données enregistrées au sein d'une piste de données contenant le signal de données. Le faisceau de lecture est modulé par des marques de données au sein de la pluralité des canaux de données de façon à produire un faisceau de lecture modulé de données réfléchies. Ce faisceau de lecture modulé de données réfléchies est détecté par le détecteur (142) afin de récupérer les données enregistrées. L'image des données dans le faisceau de lecture modulé de données réfléchies est détectée pour récupérer les données enregistrées. Ladite image des données sert aussi à produire un signal de commande de suivi de piste pour un appareil électronique (156), qui ajuste automatiquement le positionnement d'une lentille (152) pour positionner correctement le faisceau de lecture sur le support d'enregistrement. On parvient ainsi à un positionnement automatique précis sur la piste de données alors que se déroule une opération de lecture de la piste de données pendant une fonction de lecture.
PCT/IB1996/000718 1995-06-07 1996-06-06 Systeme compact de lecture et de suivi de piste pour enregistrement optique sur bande WO1996041335A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63150/96A AU6315096A (en) 1995-06-07 1996-06-06 Compact read/tracking system for optical tape recording

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47683995A 1995-06-07 1995-06-07
US08/476,839 1995-06-07

Publications (2)

Publication Number Publication Date
WO1996041335A2 WO1996041335A2 (fr) 1996-12-19
WO1996041335A3 true WO1996041335A3 (fr) 1997-02-06

Family

ID=23893468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/000718 WO1996041335A2 (fr) 1995-06-07 1996-06-06 Systeme compact de lecture et de suivi de piste pour enregistrement optique sur bande

Country Status (3)

Country Link
AU (1) AU6315096A (fr)
WO (1) WO1996041335A2 (fr)
ZA (1) ZA964613B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1873762B1 (fr) * 2006-06-30 2010-03-17 Thomson Licensing SA Appareil et méthode pour la reproduction de données enregistreés sur un milieu d'enregistrement
EP1873761A1 (fr) * 2006-06-30 2008-01-02 Thomson Licensing, S.A. Appareil et méthode pour la reproduction de données enregistreés sur un milieu d'enregistrement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815067A (en) * 1986-10-06 1989-03-21 Thorn Emi Plc. Optical rotary headwheel tape recording system
US5081617A (en) * 1990-09-24 1992-01-14 Creo Products Inc. Optical system for simultaneous reading of multiple data tracks
US5400308A (en) * 1992-08-19 1995-03-21 Olympus Optical Co., Ltd. Optical information recording/reproducing device capable of recording information on a moving medium and reproducing information by using reproducing light beams

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815067A (en) * 1986-10-06 1989-03-21 Thorn Emi Plc. Optical rotary headwheel tape recording system
US5081617A (en) * 1990-09-24 1992-01-14 Creo Products Inc. Optical system for simultaneous reading of multiple data tracks
US5400308A (en) * 1992-08-19 1995-03-21 Olympus Optical Co., Ltd. Optical information recording/reproducing device capable of recording information on a moving medium and reproducing information by using reproducing light beams

Also Published As

Publication number Publication date
ZA964613B (en) 1996-12-12
AU6315096A (en) 1996-12-30
WO1996041335A2 (fr) 1996-12-19

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