Information recording apparatus

Details Information recording apparatus Information recording apparatus

2005-11-29

2005-11-29

Hindi, Nabil (Department: 2655)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

Reexamination Certificate

active

06970409

ABSTRACT:
An information recording apparatus capable of detecting an accurate tracking error even if a reflectance or a transmittance of respective information recording layers varies when information is recorded onto a multilayer optical information recording medium having a plurality of information recording layers, wherein the apparatus comprises a detecting device for detecting a position of a boundary portion between a recorded area where the information has already been recorded and an unrecorded area in the information recording layer; an inhibiting device for inhibiting recording the information onto an area in one information recording layer in a case where the boundary portion in an information recording layer may affect a tracking servo for recording the information onto said one information recording layer.

REFERENCES:
patent: 5414451 (1995-05-01), Sugiyama et al.
patent: 0 957 477 (1999-11-01), None
patent: 2000-285469 (2000-10-01), None
patent: 2000-293947 (2000-10-01), None
patent: 2001-023170 (2001-01-01), None
patent: WO 00/28532 (2000-05-01), None

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