Hologram reproduction apparatus and hologram reproduction...

Details Hologram reproduction apparatus and hologram reproduction... Hologram reproduction apparatus and hologram reproduction...

2005-12-15

2009-12-01

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07626911

ABSTRACT:
A hologram reproduction apparatus and method is disclosed wherein positioning between reproduction reference light and a hologram recording medium can be performed accurately. Reference light is irradiated upon the medium recorded by angle multiple recording, and reproduction light generated from the medium is received by an image pickup apparatus to reproduce data. Thereupon, projection information of light which cannot pass through an iris but is projected on the iris is detected by an optical detector. A position control section detects a positional displacement of the medium based on projection state information on the inner side of a projection region of reproduction light generated from an adjacent recording area to the recording area of a reproduction target from within the detection information and controls a drive mechanism to move the medium so as to eliminate the positional displacement.

REFERENCES:
patent: 7079469 (2006-07-01), Itoh et al.
patent: 7148468 (2006-12-01), Jung
patent: 7236441 (2007-06-01), Tanaka et al.
patent: 7254106 (2007-08-01), Ichihara et al.
patent: 7304933 (2007-12-01), An et al.
patent: 7426168 (2008-09-01), Kawano et al.
patent: 2006/0153044 (2006-07-01), Hayashi et al.
U.S. Appl. No. 11/866,029, filed Oct. 2, 2007, Hayashi, et al.

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