Information recording and reproducing apparatus and...

Details Information recording and reproducing apparatus and... Information recording and reproducing apparatus and...

2007-09-25

2007-09-25

Wellington, Andrea (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047530, C369S013260, C369S116000

Reexamination Certificate

active

10642461

ABSTRACT:
It is an object of the present invention to provide an information recording and reproducing technique capable of improving the reliability of information recorded on a recording medium. A recording condition comprising amplitude information and the ratio of the amplitude to the recording power is previously recorded on the recording medium. Using this previously recorded information, information is recorded and then immediately reproduced to calculate the optimum recording power from the amplitude information obtained from the reproduced signal. By adapting the recording condition accordingly, it is possible to secure reliability of information in performance.

REFERENCES:
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patent: 6339578 (2002-01-01), Sasaki et al.
patent: 6418102 (2002-07-01), Suga
patent: 6678220 (2004-01-01), Saga
patent: 09-161272 (1997-06-01), None
patent: 2001-076341 (2001-03-01), None
patent: 2001-243626 (2001-09-01), None
patent: 2001-297436 (2001-10-01), None
patent: 2002-342930 (2002-11-01), None

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