Optical disk drive

Details Optical disk drive Optical disk drive

2007-04-04

2009-11-24

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S053220

Reexamination Certificate

active

07623431

ABSTRACT:
A read out means reads out, from a multisession type optical disk which has been loaded, identification information which indicates its type, and a recommended write strategy pulse width. A calculation means, when a decision means has decided that the multisession type optical disk is of an unknown type, calculates a compensated pulse width based upon the value of the difference between the average value of the intrinsic write strategy pulse widths which are stored by a strategy storage means in correspondence with the identification information, and the recommended write strategy pulse width which has been read out by the read out means. And a recording means performs recording of data with laser light which has been modulated to the compensated pulse width as calculated by the calculation means.

REFERENCES:
patent: 2005/0030860 (2005-02-01), Gage et al.
patent: 2005/0185537 (2005-08-01), Ninomiya
patent: 2006/0221791 (2006-10-01), Suh et al.
patent: 2007/0086300 (2007-04-01), Pereira
patent: 2005-322312 (2005-11-01), None

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