G - Physics – 11 – B
Patent
G - Physics
11
B
352/32.2, 352/53
G11B 7/09 (2006.01) G11B 7/0033 (2006.01)
Patent
CA 1320572
ABSTRACT: A tracking device performs tracking correction by moving a mobile objective lens of an optical system in -the transverse direction of tracks on an optical memory card in accordance with the tracking error of the optical system relative to the optical memory card. The tracking device includes comparison means for determining whether or not tracking error information is within a predetermined standard range and for generating a direction signal that represents the direction for correction, correcting signal generating means for generating a correcting signal when the result of the determination conducted by the comparison means is negative, and retaining portion moving means for moving a retaining portion of the objective lens in the direction indicated by the direction signal in response to the correcting signal delivered from the generating means. When it has been determined by the comparison means that the deviation occurring during tracking is within the predetermined standard range, tracking is performed by moving the mobile objective lens in the transverse direction of the tracks. When the deviation in the tracking is outside the standard range, the retaining portion of the mobile objective lens is also moved in the transverse direction of the tracks to perform tracking correction. In consequence, the range in which tracking correction can be performed is enlarged, and an accuracy with which data is written on and read from the optical memory can be thereby improved.
595553
Kabushiki Kaisha Csk
Marks & Clerk
LandOfFree
Tracking device for optical memory card does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tracking device for optical memory card, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracking device for optical memory card will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1178565