Optimum slice level signal reading apparatus for optical disk

Details Optimum slice level signal reading apparatus for optical disk Optimum slice level signal reading apparatus for optical disk

1997-11-07

1999-10-12

Huber, Paul W.

Dynamic information storage or retrieval

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

Mechanism control by the control signal

369 59, G11B 509

Patent

active

059663561

ABSTRACT:
An apparatus for reading information from an optical disk, comprises a rotator to rotate the optical disk, a detector to detect optical information from the optical disk and to output signals, AC coupling section to eliminate signal components lower than a predetermined cut-off frequency from the signals, a slice level signal generator to generate slice level signals from a peak value and a bottom value of the signals; and a data outputting section to obtain data outputs from the signals and the slice level signals.

REFERENCES:
patent: 5235590 (1993-08-01), Taguchi et al.
patent: 5359586 (1994-10-01), Izumi et al.
patent: 5497361 (1996-03-01), Mita et al.
patent: 5592456 (1997-01-01), Miyashita et al.

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