Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2004-11-29
2008-11-25
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S044320
Reexamination Certificate
active
07457218
ABSTRACT:
In a method of obtaining a reproduction signal with good quality from a data recording medium, two actual signals are generated as first and second signals I1and I2from detection signals obtained from the data recording medium. A coefficient k which has linear correlation with a tilt is calculated based on the first and second signals I1and I2. A reproduction signal in which influence of the tilt is eliminated, is reproduced by using the coefficient k and the first and second signals I1and I2.
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Ogawa Masatsugu
Ohkubo Shuichi
Foley & Lardner LLP
NEC Corporation
Pham Van T
Young Wayne
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