Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1997-11-24
1999-06-01
Huber, Paul W.
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
369 4413, 369 4426, 369 4437, G11B 1722, G11B 700
Patent
active
059094125
ABSTRACT:
In a method for reproducing an optical disk of the present invention, address information of an optical disk, provided with tracking guides composed of (1) a wobbling groove wobbled in accordance with address information and (2) a normal groove which is not wobbled, is reproduced. The wobbling groove and the normal groove are alternately provided in a radius direction of the optical disk. When carrying out recording and reproducing of the optical disk, three beams composed of one main beam and two sub beams are used. The three beams are projected so that (a) the sub beams are respectively on the wobbling groove and the normal groove and (b) the main beam is on a land between the wobbling groove and the normal groove. The address information is found from reflected light of one of the sub beams. The above arrangement allows respective central portions of the sub beams to track the tracking guides. Therefore, even in the case where the optical disk is tilted or vibrated, the sub beams do not deviate totally off the tracking guides, thereby permitting to stably reproduce the address information.
REFERENCES:
patent: 5247507 (1993-09-01), Morimoto et al.
patent: 5303216 (1994-04-01), Shinoda et al.
patent: 5463614 (1995-10-01), Morita
patent: 5537373 (1996-07-01), Horikiri
patent: 5715217 (1998-02-01), Fuji
patent: 5820795 (1998-10-01), Takemori et al.
Published unexamined patent application, Tokukaihei 5-314538, Nov. 26, 1993.
Published unexamined patent application, Tokukaihei 6-290462, Oct. 18, 1994 .
Iketani Naoyasu
Mieda Michinobu
Murakami Yoshiteru
Nakayama Junichiro
Takahashi Akira
Conlin David G.
Daley, Jr. William J.
Huber Paul W.
Sharp Kabushiki Kaisha
LandOfFree
Method for reproducing optical disk does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for reproducing optical disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reproducing optical disk will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-959709