Optical reproducing method for optical medium with aligned...

Details Optical reproducing method for optical medium with aligned... Optical reproducing method for optical medium with aligned...

2006-08-15

2006-08-15

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275400

Reexamination Certificate

active

07092350

ABSTRACT:
A reproducing method for reproducing information from an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, the prepit portion including first and second prepit portions divided in a track direction and arranged on a boundary line of the respective tracks. The first and second prepit portions each have address information prepits arranged at every two-track pitch in the radial direction, and the address information prepit of the first and second prepit portions are arranged with one track displaced in the radial direction. A trailing end of an end prepit of the first prepit portion is aligned with the radial direction. The method includes irradiating an optical spot on the medium, detecting a reflected beam from the medium, and reproducing information on the medium by using a signal obtained by the reflected beam.

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