AR069180A2 - Dispositivo de lectura y metodo de lectura para un medio optico de registros de datos - Google Patents

Dispositivo de lectura y metodo de lectura para un medio optico de registros de datos

Info

Publication number
AR069180A2
AR069180A2 ARP080104822A ARP080104822A AR069180A2 AR 069180 A2 AR069180 A2 AR 069180A2 AR P080104822 A ARP080104822 A AR P080104822A AR P080104822 A ARP080104822 A AR P080104822A AR 069180 A2 AR069180 A2 AR 069180A2
Authority
AR
Argentina
Prior art keywords
reading
transmission
laser beam
energy
recorded
Prior art date
Application number
ARP080104822A
Other languages
English (en)
Inventor
N Miyagawa
A Nakamura
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of AR069180A2 publication Critical patent/AR069180A2/es

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
    • G11B7/004—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
    • 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
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • 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
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1267—Power calibration

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

Un dispositivo de lectura suprime el deterioro de las marcas grabadas causadas al incrementar la transmision de energía láser para compensar una caída de la relacion S/N al leer a alta velocidad informacion grabada en un medio de registro de alta densidad. Para leer la informacion grabada en un medio optico de registro de datos grabados y leídos mediante una transmision de rayo láser de un láser semiconductor, en donde el método de lectura modula una corriente de alta frecuencia en la corriente impulsora del láser semiconductor a la transmision de rayo láser, y cambia la tasa de modulacion de la luz de acuerdo con la velocidad lineal seleccionada que se usa para la lectura. La tasa de modulacion de la luz es la relacion Pp/Pave entre la energía pico Pp y la energía de lectura promedio Pave de la intensidad de la luz del rayo láser modulado con alta frecuencia.
ARP080104822A 2006-06-12 2008-11-04 Dispositivo de lectura y metodo de lectura para un medio optico de registros de datos AR069180A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006162295 2006-06-12

Publications (1)

Publication Number Publication Date
AR069180A2 true AR069180A2 (es) 2010-01-06

Family

ID=38330766

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP070102493A AR061292A1 (es) 2006-06-12 2007-06-08 Dispositivo de lectura y metodo de lectura para un medio optico de registro de datos
ARP080104822A AR069180A2 (es) 2006-06-12 2008-11-04 Dispositivo de lectura y metodo de lectura para un medio optico de registros de datos

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP070102493A AR061292A1 (es) 2006-06-12 2007-06-08 Dispositivo de lectura y metodo de lectura para un medio optico de registro de datos

Country Status (16)

Country Link
US (1) US8000177B2 (es)
EP (6) EP2346037A1 (es)
JP (6) JP4422780B2 (es)
KR (1) KR101318529B1 (es)
CN (6) CN101950567A (es)
AR (2) AR061292A1 (es)
AT (1) ATE504057T1 (es)
AU (1) AU2007259817B2 (es)
BR (2) BRPI0712752A2 (es)
CA (1) CA2652519A1 (es)
DE (1) DE602007013556D1 (es)
EG (1) EG26294A (es)
ES (1) ES2361205T3 (es)
MX (1) MX2008015884A (es)
RU (1) RU2434311C2 (es)
WO (1) WO2007145124A1 (es)

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JP2009080895A (ja) 2007-09-26 2009-04-16 Toshiba Corp 情報記録媒体及びこの媒体を用いたディスク装置
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JP2011100514A (ja) * 2009-11-06 2011-05-19 Hitachi-Lg Data Storage Inc 光ディスク装置
JP2011134409A (ja) * 2009-12-25 2011-07-07 Hitachi-Lg Data Storage Inc 光ディスク装置及び光ディスク再生方法
JP2011134414A (ja) * 2009-12-25 2011-07-07 Hitachi-Lg Data Storage Inc 光ディスク装置及び光ディスク装置におけるデータ再生方法
JP2011134404A (ja) * 2009-12-25 2011-07-07 Hitachi-Lg Data Storage Inc 光ディスク装置及び光ディスク装置の制御方法
JP2013118022A (ja) * 2011-12-01 2013-06-13 Hitachi Consumer Electronics Co Ltd パワー調整方法及び情報記録再生装置
US8493247B2 (en) 2011-12-20 2013-07-23 General Electric Company Methods and systems for decoding data
US8493246B2 (en) 2011-12-20 2013-07-23 General Electric Company Methods and systems for decoding data
JP2013251022A (ja) * 2012-05-31 2013-12-12 Funai Electric Co Ltd 光ディスク装置、光ディスクの再生方法
JP6694717B2 (ja) * 2016-01-25 2020-05-20 デクセリアルズ株式会社 露光装置および露光方法

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US5586099A (en) 1995-05-22 1996-12-17 International Business Machines Corporation Optimized laser read power based upon scan speed of optical medium and erasure characteristics of the medium
JPH10228645A (ja) 1997-02-17 1998-08-25 Matsushita Electric Ind Co Ltd 光学的情報記録媒体の記録再生方法および記録再生装置
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JP2002109822A (ja) 2000-09-29 2002-04-12 Fujitsu Ltd 回転制御方法及び記憶装置
JP2003067931A (ja) 2001-08-27 2003-03-07 Matsushita Electric Ind Co Ltd 光ディスクへの情報記録方法及び情報記録装置
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JP2007004914A (ja) 2005-06-24 2007-01-11 Hitachi Ltd 光ディスク再生装置およびレーザダイオード駆動方法
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WO2007043406A1 (ja) 2005-10-04 2007-04-19 Matsushita Electric Industrial Co., Ltd. 光ディスクドライブ装置、及びそれを用いた光ディスクの再生方法
JP2007134003A (ja) 2005-11-14 2007-05-31 Matsushita Electric Ind Co Ltd 光ディスク装置
JP2007172770A (ja) 2005-12-23 2007-07-05 Sharp Corp 光ディスク装置
JP4483859B2 (ja) 2006-02-28 2010-06-16 日本ビクター株式会社 情報記録再生装置
JP2007280464A (ja) 2006-04-04 2007-10-25 Canon Inc 光学的情報記録再生方法及び装置
CN101950567A (zh) * 2006-06-12 2011-01-19 松下电器产业株式会社 光学数据记录介质的读取设备和读取方法
WO2008004032A1 (en) * 2006-07-04 2008-01-10 Koninklijke Philips Electronics N.V. Method and device for retrieving information from an optical record carrier at various reading speeds

Also Published As

Publication number Publication date
JP2009540478A (ja) 2009-11-19
JP2011018450A (ja) 2011-01-27
CN101950567A (zh) 2011-01-19
EP2346036A1 (en) 2011-07-20
WO2007145124A1 (en) 2007-12-21
BRPI0722380A2 (pt) 2012-06-12
EP2033188B1 (en) 2011-03-30
EP2339578A1 (en) 2011-06-29
MX2008015884A (es) 2009-04-22
AU2007259817B2 (en) 2011-11-03
CN101467207B (zh) 2010-12-15
RU2008151764A (ru) 2010-07-20
CN101976568A (zh) 2011-02-16
EG26294A (en) 2013-06-12
AU2007259817A1 (en) 2007-12-21
JP4732544B2 (ja) 2011-07-27
KR101318529B1 (ko) 2013-10-16
JP2010157354A (ja) 2010-07-15
EP2033188A1 (en) 2009-03-11
AR061292A1 (es) 2008-08-20
JP4545821B2 (ja) 2010-09-15
JP2009224027A (ja) 2009-10-01
ES2361205T3 (es) 2011-06-14
BRPI0712752A2 (pt) 2011-05-10
CN101467207A (zh) 2009-06-24
CA2652519A1 (en) 2007-12-21
CN101976569A (zh) 2011-02-16
US20100226218A1 (en) 2010-09-09
JP4598156B2 (ja) 2010-12-15
CN101950566A (zh) 2011-01-19
RU2434311C2 (ru) 2011-11-20
JP2010277689A (ja) 2010-12-09
EP2346037A1 (en) 2011-07-20
ATE504057T1 (de) 2011-04-15
JP2010238358A (ja) 2010-10-21
DE602007013556D1 (de) 2011-05-12
JP4422780B2 (ja) 2010-02-24
KR20090020589A (ko) 2009-02-26
CN101950568A (zh) 2011-01-19
JP4621809B2 (ja) 2011-01-26
US8000177B2 (en) 2011-08-16
EP2276024A1 (en) 2011-01-19
JP4763088B2 (ja) 2011-08-31
EP2346035A1 (en) 2011-07-20

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