Optical recording apparatus and control method thereof

Details Optical recording apparatus and control method thereof Optical recording apparatus and control method thereof

2006-06-27

2006-06-27

Korzuch, William (Department: 2653)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044290, C369S044320, C369S044360, C369S053220

Reexamination Certificate

active

07068571

ABSTRACT:
An optical system of an optical recording apparatus forms a main spot and sub-spots preceding and succeeding the main spot on a signal recording medium. The optical system is set such that the sub-spot is shifted from the main spot in the direction orthogonal to a signal track by a distance expressed by an expression (2k−1)P/4(k=natural number), in which P denotes a distance between adjacent signal tracks on the signal recording medium. Thus, the sub-spot succeeding the main spot can be used to effectively read the state of a signal recorded on the signal recording medium by the main spot.

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patent: 6829205 (2004-12-01), Fukumoto

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