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1. WO2006126575 - PARAMETER ADJUSTING METHOD AND INFORMATION RECORDING/REPRODUCING DEVICE

Publication Number WO/2006/126575
Publication Date 30.11.2006
International Application No. PCT/JP2006/310325
International Filing Date 24.05.2006
IPC
G11B 7/095 2006.1
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
08Disposition or mounting of heads or light sources relatively to record carriers
09with 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
095specially adapted for discs, e.g. for compensation of eccentricity or wobble
G11B 7/0045 2006.1
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 7/125 2012.1
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 7/00718
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
00718Groove and land recording, i.e. user data recorded both in the grooves and on the lands
G11B 7/094
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
08Disposition or mounting of heads or light sources relatively to record carriers
09with 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
094Methods and circuits for servo offset compensation
G11B 7/0945
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
08Disposition or mounting of heads or light sources relatively to record carriers
09with 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
0945Methods for initialising servos, start-up sequences
G11B 7/0956
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
08Disposition or mounting of heads or light sources relatively to record carriers
09with 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
095specially adapted for discs, e.g. for compensation of eccentricity or wobble
0956to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
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
  • 日本電気株式会社 NEC CORPORATION [JP]/[JP] (AllExceptUS)
  • 小川 雅嗣 OGAWA, Masatsugu [JP]/[JP] (UsOnly)
Inventors
  • 小川 雅嗣 OGAWA, Masatsugu
Agents
  • 稲垣 清 INAGAKI, Kiyoshi
Priority Data
2005-15413926.05.2005JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) PARAMETER ADJUSTING METHOD AND INFORMATION RECORDING/REPRODUCING DEVICE
(FR) PROCEDE DE REGLAGE DE PARAMETRE ET DISPOSITIF D’ENREGISTREMENT/REPRODUCTION D’INFORMATIONS
(JA) パラメータ調整方法及び情報記録/再生装置。
Abstract
(EN) There is provided a high-density land/groove recording method for recording random data for parameter adjustment in three adjacent grooves or three adjacent lands of an optical disk. The data recorded is reproduced. According to PRSNR of the reproduction data, firstly, a radial tilt is adjusted and then parameters of focus offset, recording power, and track offset are adjusted in this order. It is also possible to adjust the recording power firstly.
(FR) La présente invention concerne un procédé d’enregistrement en sillon/plage de haute densité pour enregistrer des données aléatoires pour un réglage de paramètre dans trois sillons adjacents ou trois plages adjacentes d’un disque optique. Les données enregistrées sont reproduites. Selon le RSBRP des données de reproduction, d’abord, une inclinaison radiale est réglée et puis des paramètres de décalage de foyer, puissance d’enregistrement, et décalage de piste sont réglés dans cet ordre. Il est également possible de régler la puissance d’enregistrement en premier.
(JA)  光ディスクの隣接する3つのグルーブ又は隣接する3つのランドの何れかに、パラメータ調整用のランダムデータを記録する高密度ランド・グルーブ記録方法を提供する。記録されたデータを再生し、その再生データのPRSNRに基づいて、まずラジアルチルトを調整し、次いで、フォーカスオフセット、記録パワ、トラックオフセットの順に順次にパラメータを調整する。最初に、記録パワを調整してもよい。
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