WO2009040925A1 - Recording device and method, and computer program - Google Patents

Recording device and method, and computer program Download PDF

Info

Publication number
WO2009040925A1
WO2009040925A1 PCT/JP2007/068922 JP2007068922W WO2009040925A1 WO 2009040925 A1 WO2009040925 A1 WO 2009040925A1 JP 2007068922 W JP2007068922 W JP 2007068922W WO 2009040925 A1 WO2009040925 A1 WO 2009040925A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording
recorded
data
amplitude
pull signal
Prior art date
Application number
PCT/JP2007/068922
Other languages
French (fr)
Japanese (ja)
Inventor
Shoji Fuse
Junichi Furukawa
Hiroshi Nishiwaki
Yoshio Sasaki
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/068922 priority Critical patent/WO2009040925A1/en
Publication of WO2009040925A1 publication Critical patent/WO2009040925A1/en

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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
    • G11B7/125—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
    • G11B7/1263—Power control during transducing, e.g. by monitoring

Landscapes

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

Abstract

A recording device (1) comprises recording means (221, 23) for recording data by irradiating a recording medium (100) with a laser beam (LB) whose power can be adjusted, first control means (27) for controlling the recording means so as to interrupt the recording of recording data, detection means (28) for detecting an amplitude of a recorded push-pull signal that is obtained by reading the recorded data that is recorded just before interrupting the recording, calculation means (27) for calculating the most appropriate power according to the ratio of the amplitude of the recorded push-pull signal to the amplitude of the no-recorded push-pull signal obtained in the recording area in which the recording data is not recorded, and second control means (24) for controlling the recording means so as to restart the recording of the recording data when irradiated with the laser beam with the most appropriate power.
PCT/JP2007/068922 2007-09-28 2007-09-28 Recording device and method, and computer program WO2009040925A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/068922 WO2009040925A1 (en) 2007-09-28 2007-09-28 Recording device and method, and computer program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/068922 WO2009040925A1 (en) 2007-09-28 2007-09-28 Recording device and method, and computer program

Publications (1)

Publication Number Publication Date
WO2009040925A1 true WO2009040925A1 (en) 2009-04-02

Family

ID=40510838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/068922 WO2009040925A1 (en) 2007-09-28 2007-09-28 Recording device and method, and computer program

Country Status (1)

Country Link
WO (1) WO2009040925A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002230766A (en) * 2001-01-29 2002-08-16 Nec Corp Optical disk recording device and recording method for the same
JP2003099931A (en) * 2001-09-21 2003-04-04 Ricoh Co Ltd Optical disk device
JP2005310256A (en) * 2004-04-21 2005-11-04 Matsushita Electric Ind Co Ltd Information recording method and information recording apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002230766A (en) * 2001-01-29 2002-08-16 Nec Corp Optical disk recording device and recording method for the same
JP2003099931A (en) * 2001-09-21 2003-04-04 Ricoh Co Ltd Optical disk device
JP2005310256A (en) * 2004-04-21 2005-11-04 Matsushita Electric Ind Co Ltd Information recording method and information recording apparatus

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