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Machine translation
1. (WO2007004360) OPTICAL PICKUP DEVICE AND INFORMATION RECORDING/REPRODUCING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/004360    International Application No.:    PCT/JP2006/309861
Publication Date: 11.01.2007 International Filing Date: 17.05.2006
Chapter 2 Demand Filed:    25.04.2007    
IPC:
G11B 7/095 (2006.01), G11B 7/08 (2006.01), G11B 7/135 (2006.01)
Applicants: PIONEER CORPORATION [JP/JP]; 4-1, Meguro 1-chome, Meguro-ku, Tokyo 1538654 (JP) (For All Designated States Except US).
YANAGISAWA, Takuma [JP/JP]; (JP) (For US Only).
TANAHASHI, Yasuo [JP/JP]; (JP) (For US Only)
Inventors: YANAGISAWA, Takuma; (JP).
TANAHASHI, Yasuo; (JP)
Agent: ISHIKAWA, Yasuo; Park Shiba Building 2F 17-11, Shiba 2-chome Minato-ku, Tokyo 105-0014 (JP)
Priority Data:
2005-193655 01.07.2005 JP
Title (EN) OPTICAL PICKUP DEVICE AND INFORMATION RECORDING/REPRODUCING DEVICE
(FR) DISPOSITIF CAPTEUR OPTIQUE ET DISPOSITIF D’ENREGISTREMENT/REPRODUCTION D’INFORMATIONS
(JA) 光ピックアップ装置及び情報記録再生装置
Abstract: front page image
(EN)In the case of performing tracking correction and CTC by using three beams, an irradiation position of the sub-beam is surely and correctly adjusted. The irradiation position of the sub-beam on a disk plane of an optical disc (DK) is adjusted by changing the angle of a diffraction grating (211) arranged in an optical pickup device (PU). In the adjustment, the angle of the diffraction grating (211) is adjusted by three steps of (i) rough adjustment, (ii) initial fine adjustment, and (iii) continued fine adjustment.
(FR)Réglage sûr et correct de la position de rayonnement du sous-faisceau lors de la correction de tracking et CTC au moyen de trois faisceaux. La position de rayonnement du sous-faisceau sur un plan de disque d’un disque optique (DK) est réglée en changeant l’angle d’un réseau de diffraction (211) disposé dans un dispositif capteur optique (PU). Au cours de l’ajustement, l’angle du réseau de diffraction (211) est réglé en trois étapes : (i) réglage grossier, (ii) réglage fin initial et (iii) réglage fin de suite.
(JA) 3ビームを用いてトラッキング補正やCTCを行う場合にサブビームの照射位置を確実且つ適切に調整可能とする。  光ピックアップ装置PUに設けられた回折格子211の角度を変化させることにより、光ディスクDKの盤面におけるサブビームの照射位置を調整する。かかる調整に際して、(i)粗調整、(ii)初期微調整、(iii)継続微調整の3段階にて回折格子211の角度を調整する。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)