AR061292A1 - Dispositivo de lectura y metodo de lectura para un medio optico de registro de datos - Google Patents

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

Info

Publication number
AR061292A1
AR061292A1 ARP070102493A ARP070102493A AR061292A1 AR 061292 A1 AR061292 A1 AR 061292A1 AR P070102493 A ARP070102493 A AR P070102493A AR P070102493 A ARP070102493 A AR P070102493A AR 061292 A1 AR061292 A1 AR 061292A1
Authority
AR
Argentina
Prior art keywords
reading
transmission
laser beam
energy
recorded
Prior art date
Application number
ARP070102493A
Other languages
English (en)
Inventor
N Miyagawa
Ayako Nakamura
Original Assignee
Matsushita Electric Ind Co 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of AR061292A1 publication Critical patent/AR061292A1/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.
ARP070102493A 2006-06-12 2007-06-08 Dispositivo de lectura y metodo de lectura para un medio optico de registro de datos AR061292A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
AR061292A1 true AR061292A1 (es) 2008-08-20

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 After (1)

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

Country Status (16)

Country Link
US (1) US8000177B2 (es)
EP (6) EP2346036A1 (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
EP2370973A4 (en) * 2008-11-28 2014-08-06 Univ Brigham Young HIGH POWER OPTICAL DISK DRIVES
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
US8493246B2 (en) 2011-12-20 2013-07-23 General Electric Company Methods and systems for decoding data
US8493247B2 (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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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
JP4144054B2 (ja) * 1997-07-24 2008-09-03 ソニー株式会社 光ディスクの記録方法
US6243339B1 (en) * 1997-08-12 2001-06-05 U.S. Philips Corporation Method and device for writing optical record carriers
JPH11353685A (ja) 1998-06-03 1999-12-24 Sony Corp 光ディスク装置
US6421314B1 (en) * 1998-09-10 2002-07-16 Sony Corporation Semiconductor laser drive device, optical head, optical disk device and optical disk recording and reproducing method
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EP1182650A3 (en) 2000-08-14 2002-08-14 Ricoh Company, Ltd. Phase-change type optical information recording medium
DE60125993T2 (de) * 2000-09-28 2007-10-18 Ricoh Co., Ltd. Optisches Aufzeichnungsmedium, Verfahren zu dessen Herstellung und Verfahren und Vorrichtung zum Aufzeichnen auf oder Lesen von diesem Medium
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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JP2004362748A (ja) 2003-05-09 2004-12-24 Matsushita Electric Ind Co Ltd 光学情報記録媒体
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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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EP1936611B1 (en) 2005-10-04 2009-09-23 Panasonic Corporation Optical disc drive device and optical disc reproduction method using same
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
KR101318529B1 (ko) * 2006-06-12 2013-10-16 파나소닉 주식회사 광데이터 기록매체용 판독장치 및 판독방법
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
AU2007259817B2 (en) 2011-11-03
CN101976569A (zh) 2011-02-16
US20100226218A1 (en) 2010-09-09
JP4545821B2 (ja) 2010-09-15
EP2276024A1 (en) 2011-01-19
JP2009224027A (ja) 2009-10-01
ATE504057T1 (de) 2011-04-15
EG26294A (en) 2013-06-12
JP4732544B2 (ja) 2011-07-27
EP2339578A1 (en) 2011-06-29
AR069180A2 (es) 2010-01-06
RU2008151764A (ru) 2010-07-20
CN101950566A (zh) 2011-01-19
JP4621809B2 (ja) 2011-01-26
CN101950567A (zh) 2011-01-19
KR101318529B1 (ko) 2013-10-16
BRPI0722380A2 (pt) 2012-06-12
KR20090020589A (ko) 2009-02-26
AU2007259817A1 (en) 2007-12-21
EP2346035A1 (en) 2011-07-20
US8000177B2 (en) 2011-08-16
JP4422780B2 (ja) 2010-02-24
EP2033188B1 (en) 2011-03-30
JP2010238358A (ja) 2010-10-21
MX2008015884A (es) 2009-04-22
RU2434311C2 (ru) 2011-11-20
BRPI0712752A2 (pt) 2011-05-10
CN101467207A (zh) 2009-06-24
EP2346037A1 (en) 2011-07-20
JP2009540478A (ja) 2009-11-19
ES2361205T3 (es) 2011-06-14
EP2346036A1 (en) 2011-07-20
CA2652519A1 (en) 2007-12-21
CN101467207B (zh) 2010-12-15
DE602007013556D1 (de) 2011-05-12
CN101950568A (zh) 2011-01-19
JP2010277689A (ja) 2010-12-09
JP4763088B2 (ja) 2011-08-31
WO2007145124A1 (en) 2007-12-21
JP2011018450A (ja) 2011-01-27
CN101976568A (zh) 2011-02-16
JP4598156B2 (ja) 2010-12-15
JP2010157354A (ja) 2010-07-15
EP2033188A1 (en) 2009-03-11

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Legal Events

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FG Grant, registration