Method for tracking data in an optical storage medium

Details Method for tracking data in an optical storage medium Method for tracking data in an optical storage medium

2005-03-08

2005-03-08

Tran, Thang V. (Department: 2653)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044260, C369S044350, C369S094000

Reexamination Certificate

active

06865142

ABSTRACT:
A method and system for correcting tracking errors in an optical storage medium having multiple tracks arranged in different layers of the optical storage medium, directs a reading spot that is nominally focused on to a track in the optical storage medium, and continually moves the reading spot in axial and radial directions so as to receive a signal having an amplitude which varies according to respective offsets from the track in radial and axial directions. The received signal is used to determine a direction of a respective offset from the track in radial and axial directions, and a location of the reading spot is adjusted accordingly.

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patent: WO 0173779 (2001-10-01), None

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