Recording and reproducing apparatus

Details Recording and reproducing apparatus Recording and reproducing apparatus

2005-08-03

2008-12-23

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

07468941

ABSTRACT:
A recording and reproducing apparatus according to the present invention includes a light source for emitting a light beam, a spatial modulating part for modulating the light beam to create information light, using spatial information associated with page data A to be recorded on a holographic recording medium, an optical-path changing part for changing an optical path of the information light created by the spatial modulating part, a light detecting part for receiving the information light having the optical path changed by the optical-path changing part, and a diagnosis part for inspecting operations of recording and reproducing components including the spatial modulating part and the light detecting part, using the page data A and page data B obtained from the information light received by the light detecting part.

REFERENCES:
patent: 6844927 (2005-01-01), Stokowski et al.
patent: 2004-158114 (2004-06-01), None

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