Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2007-06-26
2007-06-26
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S116000, C369S275400
Reexamination Certificate
active
10464742
ABSTRACT:
A method and apparatus for recording information by irradiating light onto a medium to form a recorded domain, and method and apparatus for reproducing the recorded information are provided. In one example of the method, a plurality of light spots are modulated synchronously and irradiated onto a recording medium so that the plurality of light spots have an overlapped region on the recording medium. Since the profile of the total energy of the plurality of light spots is varied when the intensities of the plurality of light spots are modulated synchronously, it is possible to move the position where the total energy becomes maximum to any position on the optical recording medium. Thus, by moving the maximum point of the total energy of light spots in a cross-track direction, information can be recorded in a wobbled manner.
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Kando Hidehiko
Miyamoto Harukazu
A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Goma Tawfik
Hitachi , Ltd.
Korzuch William
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