Hologram recording medium, recording/reproducing apparatus...

Details Hologram recording medium, recording/reproducing apparatus... Hologram recording medium, recording/reproducing apparatus...

2007-06-05

2007-06-05

Assaf, Fayez G. (Department: 2872)

Optical: systems and elements

Holographic system or element

With optical waveguide

C359S035000, C359S030000, C385S037000, C385S131000, C399S031000

Reexamination Certificate

active

11189914

ABSTRACT:
A hologram recording medium in which data is recorded at a high density, the input of a reference beam to an area to which data is not to be recorded of a recording layer is prevented when recording data to the hologram recording medium, and an amount of noise when reproducing the data from the hologram recording medium is reduced. The hologram recording medium includes a light velocity restriction member restricting an incidence area of a hologram recording layer, thus restricting the incidence of a reference beam onto the hologram recording layer, preventing the incidence of the reference beam onto an area to which data is not to be recorded of the hologram recording layer when recording data and reproducing the amount of noise when reproducing data.

REFERENCES:
patent: 6801348 (2004-10-01), Ramapujam et al.
patent: 2003/0026542 (2003-02-01), Yoshikawa et al.
patent: 2004/0090904 (2004-05-01), Lee et al.
patent: 2004/0095864 (2004-05-01), Lee et al.
patent: 2000-4434 (2000-01-01), None
patent: 2002-74292 (2002-03-01), None
patent: 2002-074292 (2002-03-01), None
patent: 2003-228848 (2003-08-01), None
patent: 2003-228848 (2003-08-01), None
patent: WO 2004/017314 (2004-02-01), None
Search Report issued in International PCT Application No. PCT/KR2005/002508 on Nov. 16, 2005.
Office Action issued in Korean Patent Application No. 2005-65674 on Oct. 26, 2006.

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