Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2008-05-06
2008-05-06
Tran, Thang V. (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S112260
Reexamination Certificate
active
10844109
ABSTRACT:
An object is to lighten a pickup and reduce the size of a driving device and, as a result, to reduce the size of an optical information recording apparatus, an optical information reproducing apparatus and an optical information recording/reproducing apparatus, and to improve the transfer rate by enabling to make an access to the optical information recording medium at a high speed. In an optical information recording apparatus using holography, having: a light source32, an information expressing device63for generating information light by adding information to light from the light source; a reference light generator65for generating reference light from the light from the light source; and an objective lens70for irradiating the information light and the reference light onto an optical information recording medium1, the apparatus comprises a fixed unit73including at least the information expressing device63and a moving unit75including at least the objective lens70, which moves for making access to a prescribed recording position of the optical information recording medium1.
REFERENCES:
patent: 7002891 (2006-02-01), Horimai
patent: 2004/0184382 (2004-09-01), Horimai et al.
patent: 11-311938 (1999-11-01), None
Androlia William L.
Chow Lixi
Koda H. Henry
Optware Corporation
Tran Thang V.
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