Optical information recording apparatus, optical information...

Details Optical information recording apparatus, optical information... Optical information recording apparatus, optical information...

2007-06-05

2007-06-05

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S112100, C369S112150

Reexamination Certificate

active

10220745

ABSTRACT:
An object of the present invention is to make it possible to record information on an optical information recording medium in the form of three dimensional interference patterns so that the information is erasable in part.The optical information recording medium (1) has an information recording layer (3) made of a magneto-optic recording material. A pick-up (11) of an optical information recording/reproducing apparatus generates information light by spatially modulating laser light emitted from a light source unit (20) with a spatial light modulator (22), and generates recording-specific reference light spatially modulated in phase by spatially modulating the phase of the laser light emitted from the light source (20) with a phase-spatial light modulator (16). The information recording layer (3) of the optical information recording medium (1) is irradiated with the information light and the recording-specific reference light. An electromagnetic coil (30) applies a magnetic field to the information recording layer (3). A three-dimensional distribution pattern of magnetization corresponding to the interference pattern resulting from the information light and the recording-specific reference light is formed in the information recording layer (3).

REFERENCES:
patent: 4012108 (1977-03-01), Ishii et al.
patent: 5319629 (1994-06-01), Henshaw et al.
patent: 5719691 (1998-02-01), Curtis et al.
patent: 7065032 (2006-06-01), Horimai
patent: A-05-182266 (1993-07-01), None
patent: A-08-115541 (1996-05-01), None
patent: A-08-273228 (1996-10-01), None
patent: A-10-226539 (1998-08-01), None
patent: A-11-204334 (1999-07-01), None
Heanue et al.; “Recall of linear combinations of stored data pages based on phase-code multiplexing in volume holography,” Optics Letters, vol. 19, No. 14, Jul. 15, 1994, pp. 1079-1081.
Heanue et al., “Encrypted holographic data storage based on orthogonal-phase-code multiplexing,” Applied Optics, vol. 34, No. 26, Sep. 10, 1995, pp. 6012-6015.
Hara et al., “Direct synthesis of yttrium-ion garnet by mist pyrosis,” Abstracts of 21stAcademic Lectures, The Magnetic Society of Japan, p. 460, 1997 (with English-language translation—pp. 1-3).
O plus E, No. 202, pp. 93-99, Sep. 1996 (with partial English-language translation—pp. 1-3).

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