Reproducing apparatus for reproducing information from a recordi

Details Reproducing apparatus for reproducing information from a recordi Reproducing apparatus for reproducing information from a recordi

1995-05-31

1996-09-17

Young, W. R.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 59, 369124, 3692753, 3692754, G11B 700

Patent

active

055575927

ABSTRACT:
In an information recording medium from which information recorded on each pit is reproduced by an optical detection system that obtains a reproduced signal corresponding to each pit by scanning the information recording medium along pit rows by a light beam, data of high recording density can be accurately reproduced by a simple arrangement by shifting in a step-wise fashion edge positions of an information pit from a predetermined reference position in response to digital information to be recorded within a range corresponding to a predetermined shift period smaller than a transition period of a reproduced signal determined in response to a transfer characteristic of the optical detection system. Therefore, a nonlinear intersymbol interference can be reduced without emphasizing a noise component.

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patent: 5418770 (1995-05-01), Ide et al.

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