Optical recording method, optical recording medium and...

Details Optical recording method, optical recording medium and... Optical recording method, optical recording medium and...

2006-03-14

2006-03-14

Huber, Paul W. (Department: 2653)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047510

Reexamination Certificate

active

07012870

ABSTRACT:
An optical recording method for irradiating an optical recording medium10with a laser beam to form recording marks48A to48G. The method includes defining contiguously a virtual recording cell40in a displacement direction S on the recording layer12, setting reference irradiating time with the laser beam to five stages or more, and defining a predetermined waiting time in a neighboring subsequent virtual recording cell40, corresponding to the length of the reference irradiating time in the preceding virtual recording cell40. The method also includes setting actual irradiating time by subtracting the waiting time from the reference irradiating time for irradiation of the aforementioned subsequent virtual recording cell40.The method further includes irradiating with the laser beam during the aforementioned actual irradiating time by delaying the irradiation initiation timing by the waiting time to form at least five types of recording marks48A to48G having different sizes, thereby performing multi-level recording of information.

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