Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2006-12-26
2006-12-26
Neyzari, Ali (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S275400
Reexamination Certificate
active
07154842
ABSTRACT:
A recording apparatus for recording information to an optical recording medium having an aligned prepit portion straddled on a plurality of tracks in a radial direction, which prepit portion includes first and second prepit portions divided in a track direction. A prepit of the respective first and second prepit portions is arranged on a boundary of the respective tracks. The first prepit portion has an address information prepit and a synchronous information prepit and the second prepit portion has synchronous information prepit, the prepit of the first and second prepit portions being arranged at every two-track pitch in the radial direction and with one track displaced in the radial direction. The apparatus includes an irradiation source for irradiating a light spot on the optical recording medium, and a controller for controlling an irradiation position of an optical spot from the irradiation source.
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Andou Tetsuo
Minemura Hiroyuki
Miyamoto Harukazu
Sukeda Hirofumi
Terao Motoyasu
Hitachi Maxell Ltd.
Neyzari Ali
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