Method and device for protecting a slicer in reading signals...

Details Method and device for protecting a slicer in reading signals... Method and device for protecting a slicer in reading signals...

2006-03-16

2009-12-01

Nguyen, Hoa T (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S044280, C369S047140

Reexamination Certificate

active

07626905

ABSTRACT:
A device for protecting a slicer in reading signals on a defect disc from disturbance and instability is provided. The device includes a defect detection unit, a slicer and a logic combination unit. The defect detection unit receives a plurality of defect detection signals to detect various defects for setting a plurality of defect flag signals, wherein the plurality of defect detection signals at least include an envelope signal of a RF signal and bit modulation signals. The slicer receives and digitalizes the RF signal. The logic combination unit performs logic operation on the defect flag signals in order to detect a specified defect and to trigger defect protection for the slicer. A method for protecting a slicer in reading signals on a defect disc is also provided.

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