Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Reexamination Certificate
2011-07-19
2011-07-19
Tran, Thang V (Department: 2627)
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
C369S059200, C369S059150, C369S053310, C369S124150
Reexamination Certificate
active
07983137
ABSTRACT:
According to the present invention, whether recoding pits are larger or smaller than diffraction limit is determined. Then, a signal process suitable for processing of the recording pits larger than the diffraction limit and a signal process suitable for processing of the recording pits smaller than diffraction limit are divided to divisionally perform equalizer processing. The respective signals subjected to the divisional processing are synthesized to obtain a processed output signal. A reproduction signal with reduced impact of intersymbol interference is thus obtained.
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Kurihara Kazuma
Nakano Takashi
National Institute of Advanced Industrial Science and Technology
Tran Thang V
Volpe and Koenig P.C.
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