Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Of storage or retrieval information signal
Reexamination Certificate
2008-01-29
2008-01-29
Edun, Muhammad (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Of storage or retrieval information signal
C369S047100, C369S275300
Reexamination Certificate
active
11635003
ABSTRACT:
An information recording method performing recording on an information recording medium having multiple rewritable recording layers each having a data area in which user data is to be recorded is disclosed. The method includes a recorded area presence or absence determination step that determines whether a recorded area exists in at least the data area of a first recording layer; and a corresponding unrecorded area data filling step that, if the recorded area exists in the first recording layer, records predetermined data in an unrecorded area in an area, corresponding to the same radial position as the recorded area, in a second recording layer except the first recording layer at a predetermined timing before completion of the recording on the information recording medium.
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Dickstein & Shapiro LLP
Edun Muhammad
Ricoh & Company, Ltd.
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