Optical disc reproducing apparatus using an asymmetric...

Details Optical disc reproducing apparatus using an asymmetric... Optical disc reproducing apparatus using an asymmetric...

2011-03-22

2011-03-22

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

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

Control of information signal processing channel

C369S047350, C369S053330

Reexamination Certificate

active

07911899

ABSTRACT:
An optical disc reproducing apparatus includes an analog-to-digital (A/D) converter which converts an analog signal obtained from an optical disc to a digital signal; an asymmetry compensator which detects and corrects an offset of the digital signal; a phase locked loop (PLL) which estimates a clock of the digital signal and compensates for a frequency error; a binary module which converts the digital signal to binary data; an equalizer which equalizes a particular frequency of the digital signal; and a channel identifier which detects a reference level of the binary module, based on an input signal of the equalizer.

REFERENCES:
patent: 2005/0058048 (2005-03-01), Park et al.
patent: 2005/0083822 (2005-04-01), Park et al.
patent: 2005/0128916 (2005-06-01), Park et al.
patent: 2005/0128918 (2005-06-01), Park et al.

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