Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2009-09-02
2011-10-18
Huber, Paul (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S094000, C369S121000
Reexamination Certificate
active
08040765
ABSTRACT:
According to the present invention, a recording film is partially initialized using a first light beam (A) having a wavelength for initialization, focus adjustment is performed using a second light beam (B) having a wavelength corresponding to a wavelength for recording and reproducing information on and from an information recording medium, and then the recording film is initialized using the first light beam (A), thereby it is possible to securely initialize recording films of all information layers of a multilayer information recording medium.
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International Search Report issued Nov. 10, 2009 in International (PCT) Application No. PCT/JP2009/004316.
Kojima Rie
Nishiuchi Ken'ichi
Tsuchino Akio
Yamada Noboru
Huber Paul
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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