Optical information recording and reproducing apparatus

Details Optical information recording and reproducing apparatus Optical information recording and reproducing apparatus

2011-01-11

2011-01-11

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Systems having plural physically distinct independent tracks...

Having layered storage medium

C369S047270

Reexamination Certificate

active

07869329

ABSTRACT:
An optical information recording and reproducing apparatus is provided for recording and/or reproducing information on an optical disc including a recording layer in which information can be recorded at recording positions each located at a different distance from a surface of the optical disc. The optical information recording and reproducing apparatus includes: a light source; and an objective lens which can converge the light flux from the light source onto one of the recording positions at a predetermined depth in the recording layer for recording information on the optical disc. When information to be recorded is recorded on one of the recording positions at a predetermined depth in the recording layer, the optical information recording and reproducing apparatus records information about the predetermined depth on one of the plurality of recording positions at the predetermined depth, with the information to be recorded.

REFERENCES:
patent: 2006/0077865 (2006-04-01), Eytan et al.
patent: 2009/0154324 (2009-06-01), Sato et al.
Saito, K. et al., “Drive system and readout characteristics of Micro-Reflector optical disc”, Optical Society of America, 2006.

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