Multi-level information reproducing method, multi-level...

Details Multi-level information reproducing method, multi-level... Multi-level information reproducing method, multi-level...

2005-03-10

2009-12-15

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal processing for controlling recording light...

C369S047530, C369S047500

Reexamination Certificate

active

07633846

ABSTRACT:
A multi-level information reproducing method for reproducing from a recording medium on which marks having detection signal levels different according to multi-level information are recorded in areas virtually divided uniformly, comprising the steps of: a) obtaining a reproduced signal from a series of patterns of multi-level information indicating an average level of intersymbol interference components to adjacent areas generated from marks according to all the multi-level information; and b) optimizing frequency characteristics of a reproducing part with respect to the reproduced signal.

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