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1. WO2004114291 - METHOD AND APPARATUS FOR DETERMINING THE OPTIMAL LASER POWER IN RECORDABLE OPTICAL STORAGE SYSTEMS

Publication Number WO/2004/114291
Publication Date 29.12.2004
International Application No. PCT/IB2004/050970
International Filing Date 22.06.2004
IPC
G11B 7/0045 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0045Recording
G11B 7/007 2006.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
007Arrangement of the information on the record carrier, e.g. form of tracks
G11B 7/125 2012.01
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125Optical 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
CPC
G11B 7/00456
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording 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
004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
0045Recording
00456Recording strategies, e.g. pulse sequences
G11B 7/00736
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording 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
007Arrangement of the information on the record carrier, e.g. form of tracks ; , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
00736Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
G11B 7/1267
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording 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
12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
125Optical 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
126Circuits, methods or arrangements for laser control or stabilisation
1267Power calibration
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL] (AllExceptUS)
  • LANGEREIS, Gerardus, R. [NL]/[NL] (UsOnly)
  • HELLMIG, Joachim, W. [DE]/[NL] (UsOnly)
Inventors
  • LANGEREIS, Gerardus, R.
  • HELLMIG, Joachim, W.
Agents
  • UITTENBOGAARD, Frank
Priority Data
03101902.926.06.2003EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR DETERMINING THE OPTIMAL LASER POWER IN RECORDABLE OPTICAL STORAGE SYSTEMS
(FR) PROCEDE ET APPAREIL PERMETTANT DE DETERMINER LA PUISSANCE LASER OPTIMALE DANS DES SYSTEMES DE STOCKAGE OPTIQUE ENREGISTRABLES
Abstract
(EN)
The invention relates to a method of reducing the area on an optical medium used by an optimum write parameter control procedure (OPC) and to an apparatus for carrying out the method. The method makes use of a reference data pattern written using a reference set of write parameters, and a measurement data pattern written using a measurement set of write parameters.
(FR)
L'invention se rapporte à un procédé permettant de réduire, dans un support optique, la surface utilisée pour une procédure de commande de paramètres d'écriture optimaux (OPC) ainsi qu'à un appareil permettant de mettre en oeuvre ledit procédé. Ce procédé fait appel à un schéma de données de référence écrit à l'aide d'un ensemble de référence de paramètres d'écriture et à un schéma de données de mesure écrit à l'aide d'un ensemble de mesure de paramètres d'écriture.
Latest bibliographic data on file with the International Bureau